Bullet vs Newton's Cradle at 100,000 FPS - The Slow Mo Guys

[@annalisestott8252]

It always surprises me that Dan is actually a properly trained weapons expert. He comes across as so goofy and aloof but as soon as sharp things or explosive things come out he is so serious about it

[@DinnerForkTongue]

He's a goober that knows with total certainty the hazards of things he deals with.

[@momocrashxd7818]

Lest we forget he did serve in the British Army!

[@annalisestott8252]

@@momocrashxd7818 I do often forget this, though I was aware of it

[@Spamfactor]

Aloof: “not friendly or forthcoming; cool and distant” Wouldn’t say that describes Dan

[@imaverageatgamesbutimostly3431]

@@DinnerForkTongue he’s not a goober, he’s a clown in a lab coat

[@jackdog06]

Sometimes I forget that Dan is a weapons expert, then he goes and pulls off a shot like that after an eloquent explanation of the bullet type and I’m reminded.

[@NathanAus123]

His tone changes from his usual jokey, to matter-of-fact explanation. He did the same thing during one involving explosives, rattled off a rather technical explanation of the process that was so out-of-character for what we normally see.

[@Pr011]

Former ordinance specialist in the British Army and a veteran of the Afghanistan campaign.

[@rlyprly116]

and yet he still lost ashooting competition against Gav

[@baalzagoroth4693]

Didn't mention grainage though.

[@floridaman_6079]

@@baalzagoroth4693 bruh

[@QuintBUILDs]

Never would have expected a jacketed lead bullet to shatter like that. Outstanding footage!

[@Zoddom]

@@PacMonster0 I believe its actually more about the speed than anything else. Its about the principle of inertia, since the ball just cant accelerate fast enough to get out of the way of the bullet. Then ofc the bullet shatters because its its less hard.

[@apimpnamedslickback2748]

Look up ar500 vs bullets slow motion. It is pretty crazy.

[@josephhayes9152]

I wonder what that ball bearing would do to a ballistic gel dummy…

[@TheGinGear]

@Zoddom Don't accidentally fall into the mindset of harder equals more better. Soft things don't shatter. Hard things shatter and crack. That's why the part of the ball that was attached to the strings of the first ball was breaking on impact, rather than the actual string. More than anything it was the difference in mass COMBINED with the hardness, than the speed of the bullet and it's inertia. This is also completely disregarding the fact that it's a sphere, which is pretty ideal for diffusing the force of the bullet as it only makes contact with a single point of the bearing, which puts a LOT of force internally on the bullet. Spheres are a REALLY good shape

[@jeffpraterJSF]

If you shoot a lot you know how bullets explode when you shoot steel. The crazy thing is that a tiny bearing shattered the bullet and not a giant steel plate.

[@cuatro336]

Everyone that regularly shoots knows how difficult that shot is with a pistol even at 10yds. Seriously good shooting by dan

[@newmeta2668]

Especially considering he is using a 9mm pistol with iron sights.

[@MeanBeanComedy]

No kidding. He's probably the best shooter on KZbin outside of the guntubers, right?

[@ersddrrx_the_second]

well i mean he did serve in the british army

[@zackswitch9656]

His shot was about 5-7 yards

[@jojishiox.9507]

Never get tired of Gav absolutely loving Dan's skill when it comes to his areas of expertise.

[@psyotic007]

Dan has expertise ??? 😜

[@Crimson.S.57]

@@psyotic007 yah, he was in the British military for a few years. So he has firearm and some explosives experience.

[@goodtoshi]

Which surprisingly are much more numerous than just the ability to endure Gav's inhuman experiments.

[@DJBillionator]

Gav is the tech guru. Dan is the - uhm - hands on get down and dirty skill? hehehe

[@shdhdjddj8431]

@@psyotic007 hy Tyttttt5 T55455 TJTNNLK i

[@atlas5100]

I've always loved how when Gavin wants an impossible shot Dan just goes, 'alright Bee,' and makes it happen. Such a perfect pair.

[@vacaura]

B not Bee

[@vacaura]

sorry

[@AquarianSoulTimeTraveler]

Original BB looks like a mini death Star lol 😂😂

[@ShaneDavisDFTBA]

11:22 I love Gav’s smirk as he baits Dan with his “looks up on us” comment and Dan just missing it entirely 🤣

[@user-gx3ji2sj8n]

Huh?

[@DustyyBoi]

@@user-gx3ji2sj8n normally you would say "look down on us" as in, he is in heaven, looking down, but gav says it as if he is dead looking up from the grave

[@Lord_Neko_]

LMAO I didn't even catch that XD

[@tjc]

And here I thought I was the only one that caught it lol.

[@24TIMBO]

I was looking for this comment haha

[@libsybum3591]

Gavs knowledge of cameras and slow mo paired with Dan’s knowledge about weapons and ammunition is just the perfect combination. I always find myself admiring Dan’s know how and respect for weapons and explosives

[@Nighthawkinlight]

I can't believe how well you got that cradle lined up. Great video concept.

[@Memecious]

kzbin.info/www/bejne/iYu4Ypqimt-mgdk

[@stocktonjoans]

they probably ued "Lasers"

[@Anklejbiter]

@@stocktonjoans knowing them they probably didn't. Dan has a history of demonstrating unusually high accuracy

[@Reject101Personal]

@@Anklejbiter hardly unusually high accuracy when he was in the military

[@auggie803]

-Great my azz.

[@irosquaredboku]

I love when Gav and Dan talk about things they're experts in. They do it so casually, but it's so much fun to watch, since they're so clueless otherwise.

[@MrCrockaG]

It's why I love videos like this or the videos where they go insanely slow. My all-time favourite video on the channel is the pyrex explosion because of the insane amount of depth Gav goes into talking about slow motion.

[@Leon14000]

True about most people, though.

[@jinnans_gd]

Physics are cool

[@scottbilger9294]

I don't think either of them is as clueless as they pretend.

[@DinnerForkTongue]

@@MrCrockaG My absolute favourite is the quarry explosives one. The carnage is unparalleled.

[@SwordTune]

"He's looking down at us thinking 'yes boys.'" "He's definitely got a smile on his face as he looks up on us." Sounds like we have two opposing opinions on where Newton's at right now.

[@raulto9123]

Exactly what I thought of when they said it lol

[@logicalChimp]

'Looks upon us' vs 'Looks up on us' - the former doesn't imply the position of the one doing the looking :D

[@steeeve7736]

@@logicalChimp lol it sounded like up-on us to me, there was definitely a pause in between. You can even see him smirk a little right after saying it lol

[@NafenX]

Maybe Gav just thinks that heaven is upside down or something

[@MarshalBeard]

Literally scroled down at 11:10 just as the outro was playing to start reading comments as usual, and I read your quotes EXACTLY in time as they were saying it.

[@Incepter.]

The bullet getting annihilated against the Newton's Cradle at 100,000 FPS was so epic and surprising and then all the force pushed it away.

[@codycallaway9057]

It literally just shattered

[@markburt7895]

my favorite part about it is how great of an example of physics it is with the last ball maintaining the momentum of the bullet and just about becoming a bullet itself

[@pumbaa667]

And it joys me that after all these years goofing around they can still be totally baffled at their experiments and results.

[@j-andrews]

Gavin trying not to laugh at Dan’s “if they were perfectly hard balls” at 2:46

[@mariocortez8853]

You know he tried fighting that one 😂

[@DiegoGarcia-yl3im]

I hate to admit that I’m crying off laughter right here 😅😂😂😂

[@UmCaraNormalnumPlanetanormal]

LOL

[@Tuvok_Shakur]

i saw that too it made me laugh. the way he makes that gesture and reiterates "perfectly hard" is what made him lose it i think

[@jasonchiu272]

"Perfectly hard and there was no deformation" DanUS, 2022

[@mrcaboosevg6089]

I sometimes forget than Dan was in the army and actually knows what he's talking about. Also that ball bearing had 4x less energy than than the 9mm but had a much better transfer of energy, it's not all about power on paper

[@jacoblansman8147]

Kinetic Energy = ½mv² The bullet itself weighs 7.5 grams, the steel balls weigh 28 grams each. That equation for calculating kinetic energy results in a value of 459'000J of energy for the bullet and a whopping 1'020'000J for each steel ball. The steel balls they fired through the air cannon had much more energy.

[@TalesOfWar]

It'd be interesting to see what happens with a rifle round like a 5.56 or 7.62. 5.56 is designed to fragment to make a mess of your insides so I'd imagine much of the same as the 9mm, though with more energy to push the rest of the balls along. A 7.63 is more or less a solid mass meant to drill a hole through things.

[@prosonny222]

​@@jacoblansman8147 I don't know where you got those numbers from, but lets break this down. Kinetic energy formula is correct: ½mv² where m = mass (in kg) and v = velocity (in meters per second) First of all, velocity is squared, so that trumps everything. Double mass, double energy. Double speed, quadruple energy. Bullet: m = 7.5 g = 0.0075 kg v = 785 mph = 350.895 m/s Gives : 0.5 x 0.0075 kg x 350.895 m/s x 350.895 m/s = 461.7 J Steel ball bearing: m = 28 g = 0.028 kg v = 270 mph = 120.69 m/s Gives : 0.5 x 0.028 kg x 120.69 m/s x 120.69 m/s = 203.9 J As you can see, theres more than twice the energy in the bullet than the steel ball. 1 million joules (1'020'000 J) is approximately the energy of 1 tonne (1000kg) moving at 100mph (161 km/h or 44.7 m/s)

[@panner11]

@@jacoblansman8147 Um, you may want to check the math again. Remember it's ½mV² meaning the energy increases massively with the V not the m. The bullet travelling at roughly 3 times the speed, but 4 times less mass means roughly 3^2/4 or 2.25 times more energy in the bullet. Also, 1,000,000 J is a gigantic amount of energy, remember that J is calculated in kilograms not grams. Written out: Ball bearing: 270mph=120.7 m/s 1/2*0.028kg*120.7^2 = 204 J Bullet: 785mph = 350.9 m/s 1/2*0.0075kg*350.9^2 = 462 J It really is about better transfer of energy and especially transfer of momentum since it is a newton's cradle after all. The bullet shattering means all the tiny pieces of the bullet maintain most of their momentum as they fly out everywhere towards the right in the camera frame, and not much of the momentum is actually transferred to the newton's cradle.

[@Wpjgdmtu]

I love all the people getting totally different answers

[@Santrial]

I absolutely love when Dan brings out the guns. I'm not a gun nut, but I could listen to him talk about them for hours

[@adirblazkowics7717]

kinda sounds like you might be a gun nut idk

[@Memecious]

kzbin.info/www/bejne/iYu4Ypqimt-mgdk

[@rogerloess2379]

Nothing wrong with being a gun nut. Come on in, the waters fine

[@RetroRaven8]

we're all waiting for the dan gun channel.

[@andybeans5790]

I think it's great because he's so matter-of-fact about it, he changes from amiable test dummy/target to amiable explosives/firearms expert without even changing expression. I still can't get over his hand-to-eye coordination with that katana a few years ago.

[@Hooliobro]

I love Gavin's so-easy-to-miss joke that he slides in at 11:23 right after Dan talks about how Newton would be "looking down on them" with pride. I see you, Gav.

[@angrydragonslayer]

Indeed

[@leevclarke]

11:09 begins the setup. His punchline makes much more sense with the preceding fourteen seconds.

[@chair6703]

i dont get it

[@Gizmomaster]

I was like “what did Newton do to you Gav!”

[@beanbagman2194]

@@chair6703 The well obscured humor is the clever usage of down as a homonym. As the story of Newton's interactions with gravity is, for the most part, assumed to be common knowledge, saying that Newton is looking "down" references that he a) is looking at them from heaven, which is usually associated with up and would enable him to look down, and b) was an instrumental physicist in unraveling the universal law of gravity. (This next part is not meant to insult, just covering my bases. Internet trolls and all) Also, in the off chance you DID get it and are making a joke, sarcasm/facetiousness doesn't translate well over text, especially without punctuation. I took it seriously and wanted to help if that's what you were asking for :)

[@michaelroy1631]

Do I understand why the bullet shattered? Yes. Was it still totally surprising? Yes. Well done!

[@avg345]

I assume they were using frangible or hollow point bullets and not FMJ (full metal jacket) bullets which are more solid

[@cmtptr]

@@avg345 Looked fmj to me. Lead is just very soft.

[@12378dnn]

@@avg345 Dan explicitly says it's FMJ, and it's certainly not hollow point. Doesn't look like a frangible round either. It was definitely an unexpected outcome, but it's understandable that a small dense ball of stainless steel could break a 9mm FMJ.

[@AquarianSoulTimeTraveler]

Original BB looks like a mini death Star lol 😂😂

[@wormchampion9893]

Because they have a balls of steel

[@SOCOM955555]

I love that yall kept in the misses, showing the amount of skill and effort required to be that good of a shot. All the props in the world for making that shot

[@khaizuranrosle5264]

2:41 “If they were perfectly hard balls.. perfectly hard” Gav trying his hardest not to laugh and maintain his serious face killed me

[@sachithvp]

He laughed

[@RManPthe1st]

@@sachithvp well, he did try, just not successfully

[@ogswavey]

Lol

[@sachithvp]

@@RManPthe1st true

[@UmWhatOo]

all i could think of is the meme "the balls harden"

[@Berm_Blaster]

Dan's marksmanship is really impressive. Most don't understand how hard it is to make that shot.

[@GSXRTPA]

"he's definitely got a smile on his face as he looks UP at us" *smiles at the table* I see you Gav! 😂

[@glenapfelstadt287]

Haha, I knew someone else had to have noticed that. I thought that was hilarious.

[@PBTophie]

Dan said "Looking down on us" and I, knowing at least a couple of scandalous things about Isaac Newton, thought "Aw, that's a sweet sentiment, Dan." And then Gav. xD

[@davidswanson5669]

Gav could just mean he’s looking up at us from his grave in the ground, which would be a non-theological perspective, rather than a judgement on the man’s moral character.

[@Rahulkumar-rt7md]

don't click on Read more ❌⚠️Otherwise !!..........👹 I said don't do it, still did it😂😜

[@HKragh]

@@Rahulkumar-rt7md Ofcourse I still did it...

[@Mysterios1989]

It is always something to remember that Dan is not only a professional punching bag, but also a trained and highly specialized soldier.

[@McGusder]

so a professional punching bag on two fronts

[@tripatomz3441]

One with an advanced understanding of highly volatile explosives. Lol

[@andybeans5790]

It's always difficult to remember because he comes across so amiable and harmless... then slices things in mid-flight with a sword.

[@AdderTude]

His specialty is explosives, which is why he always handles the parts where they're blowing stuff up, either with det cord or something else.

[@UmCaraNormalnumPlanetanormal]

@@McGusder LOL

[@DarkDragonPath]

This is what I love about the pairing of Dan and Gav- Dan the weapons/explosives expert with knowledge and experience about cool toys and stories from his time in the army, and Gav the photography expert, who thinks up ways to have fun with those toys and knowledge, and then film it so they can watch it over again! Just two kids having fun!

[@KnucklesAndBig]

I always forget Dan has a military background lol

[@AquarianSoulTimeTraveler]

Original BB looks like a mini death Star lol 😂😂

[@RubyRoks]

It's like Jaime and Adam from Mythbusters, but significantly more British

[@killaonmoco]

As a former ordnanceman myself I find the videos extremely pleasing.

[@mrbesttheenglesh5363]

Soy me Best síganme enmi nueva cuenta bamos

[@YoghurtKiss]

The "missed shots" from the bullets were great to see in slow mo, the way the wood split was awesome.

[@derrickjenniferdunn8621]

9:49 is probably the coolest thing I have EVER seen on KZbin. Dan's reaction is priceless.

[@Mate_Antal_Zoltan]

NEVVA'!

[@SineEyed]

If you thought that was cool, you'll love this... kzbin.info/www/bejne/h5enoIStfqaUjsk

[@franklyanogre00000]

Especially compared to 2:54

[@BucksterMcgee]

You can always change the frame of reference and realize to the bullet's point of view it's being hit by five steel ball bearings that are traveling at the speed of sound.

[@PROcrastiDRIVESVofficial]

Hahahahahaha! RIP 9mm bullet - you met a terrifying fate!

[@BenjaminRodriguezReyes]

That makes a lot of intuitive sense, thanks!

[@damonirvine8910]

I was wondering why they were so surprised, I figured that would have been an automatic assumption. Oh well, guess I’m just too smart 🙄

[@missingdev0948]

@@damonirvine8910 if that feeling lasts, it means you aren't getting any smarter

[@DozIT]

@@damonirvine8910 Dunning Kruger

[@x9x9x9x9x9]

I'd love to see this done with an armor penetrating round or a steel bullet. Something hard. I wanna see that interaction.

[@beastgamingyt9798]

Same

[@skussy69]

A solid brass pistol round or AP rifle round would be great

[@5peciesunkn0wn]

.50 BMG vs Newtons Cradle at 100,000 Frames lol.

[@Th3BlackLotus]

@@5peciesunkn0wn but the first ball is a Prince Ruperts Drop.

[@HHSTT]

Take this! kzbin.info/www/bejne/h5enoIStfqaUjsk

[@antdonn]

I’m so impressed with how accurate Dan is with a firearm, as well as safe, and respecting a dangerous apparatus 😊

[@Deuce_and_a_half]

11:22 I love Gav's subtle "he's got a smile on his face as he looks _up_ on us" 😂

[@jasonwilliams1713]

Came to the comments to see who else caught it 😁

[@ExarchNZ]

Yep. I also chuckled when he said "up".

[@Mason_Blondeau]

Hell is full of scientists.

[@TheSaxyG]

Something else to consider: the BALL bearings are, well, balls. That continuous curve also deflects energy remarkably well unless the bullet hits it straight on. That's the same concept tank designers were starting to catch on to as early as 1917.

[@tigersarecool471]

he he balls 🫵😂

[@edwardcardona717]

Right, rounded, welded or cast armor is much more effective than riveted armor with all its right angles

[@misterjder1.831]

@@edwardcardona717 it really depends on the angle except if one has got these special multi material armor they've got today

[@EternalShadow1667]

@@tigersarecool471 as well as medieval tower designers! It’s a very, very, very old concept, likely old as time, though people may not have fully understood it.

[@sharpskilz]

This is the most satisfying slomo guys video in ages, with the guys back together, outside, firing stuff out of a big cannon.

[@adamtennant4936]

If you liked this, check out the various air cannon videos on Smarter Every Day. There's some awesome slo-mo footage and that is a MUCH beefier cannon.

[@sharpskilz]

@@adamtennant4936 thanks, I've seen a few, not as keen on that guy (nothing personal) though.

[@adamtennant4936]

@@sharpskilz He's certainly not as effortlessly entertaining as Dan and Gav.

[@sharpskilz]

@@adamtennant4936 Sure, but thats a tall order. They have whatever "it" is in swathes.

[@adamtennant4936]

@@sharpskilz They really do. One of my favourite channels.

[@Jiffles]

9:04 I really like how you can see the whole cradle kinda slightly stop in midair as the balls nylon strings no longer have slack and the force of both parts fight for a moment before giving way to the higher force.

[@aceofaces0007]

“Great shot kid! That was one in a million!” No seriously. That was one helluva shot by Dan, and I’m blown away by the results. Awesome vid!

[@dimitrikemitsky]

@@XREXP0 he was an NCO in the British Army, was in for quite a few years, although they don't mention it much. In the earlier videos there were always sets of them where Dan was "away" etc.

[@SlyTreeRat]

@@dimitrikemitsky Just cause someone was in the army doesn't make them a good shot 😅

[@dimitrikemitsky]

@@SlyTreeRat that is completely meaningless to my point.

[@pauberrymon5892]

@@SlyTreeRat My Dad was a crack shot before he got drafted in the late 50s, the upper Brass was impressed enough to give him a spot driving the C.O. (some General at the time), around the base most of the time. I sure do miss him. He could hunt squirrel with a 6 shooter 22cal. A squirrel with each bullet. I know because I was his retriever 😏.

[@ambassadorofreee3859]

@@SlyTreeRat While true the but the chances of person being a good shot goes up tremendously if they have military backround when compared to an ordinary citizen, especially in Europe.

[@sleepCircle]

The "insta-snap" of the first ball in the cradle is caused by something called *spallation* wherein-when a piece of metal is hit extremely hard-the energy will attempt to escape out of the metal in all directions, causing bits of the metal to fly off. This is a huge problem in tanks. A bullet hitting the outside can cause pieces of metal to fly off of the inside of the tank and injure the crew. Consequently tank armour has to be carefully designed and insulated from the crew by another layer of something.

[@TalesOfWar]

This is where composites and ceramics come in to play.

[@stephen1r2]

@@TalesOfWar That mitigates the hit but doesn't change the possible energy transfer unless you are speaking of a composite liner inside the tank to catch the splinters

[@nickmcpimpson]

@@stephen1r2 I'm not a material scientist in anyway, but to my knowledge metals are crystalline, making me assume energy transfer would spread molecularly in all directions equally... I wonder if a different structure could direct the majority of the energy in a particular direction.

[@paulshuttleworth6261]

First World War tanks crews wore chain mail to protect from the all the tiny flecks of metal that flew off the inside when they were hit with machine gun fire. Tiny shards of fast moving hot metal, showering the inside. Not fun. Search for “splatter mask” they look scary.

[@zidniafifamani2378]

I always thought that outer plate of armor are made as hard as possible with enough ductility on it to shatter the bullet and the inner armor are made of material with high tensile, compressive and shear strength to absorb as much kinetic energy as possible from the bullet fragments.

[@daenite2480]

I love how it makes complete scientific sense why the bullet shattered, but it's still mind-boggling to actually see it happen.

[@daenite2480]

@JENNITA B.O May I have my virus in English?

[@Alex-lc1bv]

@@daenite2480 lol

[@tracidtraxxed5311]

Great spoiler 👍🏾

[@pleasedyes]

@@tracidtraxxed5311 wow. I can’t believe people were talking about the video in the comments.

[@halfacubey389]

Way to spoil the results!! Your comment the top comment of the video so I saw it before I got anywhere in the video!! All jokes of course.

[@darrenbaker9570]

“I don’t know what I hit, I don’t think it was the balls, I think it was below the balls. - 8:27, favorite quote.

[@andrerenault]

I love how you guys perfectly walk the line between faffing about and genuinely caring about the science, all these years later.

[@Diamondmite]

I would love to see this done with a Newtons cradle that has stronger string and connectors

[@lil-dexxy6475]

and the supports attached to something so it doesnt fly off!

[@nickpurdy69]

I would assume the balls would just fly up and wrap over the top kinda like the end of the bullet one

[@Memecious]

kzbin.info/www/bejne/iYu4Ypqimt-mgdk

[@Diamondmite]

@@PacMonster0 I thought something like this might be an issue. Maybe a projectile of a lesser weight would help instead. I'm not sure. As you said, this is a very fine tuned object, so it would be tough to find, but must be someway of shooting it without immediately destroying it to the extent either

[@brycestrickland3919]

or scaled up, big. balls

[@apeckx5090]

You guys perfectly captured that sunset. The ball bearing thing was cool too

[@e5858]

@JENNITA B.O Ooh, foreign language bots

[@noespell]

You have accidentally achieved some of the best slo-mo footage of a ricochet I've ever seen

[@dthstrr2]

it's so nice having the 2 of them together again

[@deller6315]

It's amazing how often the fail shots are just as fascinating as the ones where they achieve their goal!

[@Centermass762]

No kidding. He couldn't have shot perfectly in between the wood and the base of the cradle if he tried! That was pretty cool.

[@castleanthrax1833]

When you've got good footage, there really isn't any "fail" shots. ✌️🇦🇺

[@Nugcon]

Everything is cool in slow-mo!

[@methecrasher]

i never wondered what would happen if you shot Newton's cradle but here we are

[@TheUnderscore_]

Something we didn't know we wanted until now

[@ak_hoops]

literally

[@aaryamannahar]

bullet and newtons cradle, the collab we didnt know we needed...

[@bubblezovlove7213]

I've asked every channel I know of for th elast year or so to do this.... I think it will need larger balls than the bullet though....

[@tylerolsen3502]

Now i want to know: How long of a continuous cradle would it take to stop enough of the energy to not destroy the whole thing?

[@robertlee3]

You guys are so entertaining. It's like being a mad scientist little kid again. Seriously, I was like a mad scientist little kid in the 1960s. So much fun!

[@wakybee]

Freakin' Awesome, everytime I see the bois back together i get alittle misty eyed.

[@sammm141]

Absolutely. These guys have been around since the early days on KZbin been watching them for yearsss now. Always wholesome nostalgic fun to see them back together.

[@EngineeringMindset]

That was incredibly satisfying to watch

[@Zen-751]

hey, I'm subscribed to you

[@dewaldsteyn1306]

@@Zen-751 so? He knows. Also nobody cares.

[@gdxhdggfmc]

@@dewaldsteyn1306 everyone cares less about you

[@Boss_Tanaka]

I care

[@humudu]

Like your mom

[@infinikki]

2:12 Small ball bearing 4:55 Same size ball bearing 7:55 Gunshot attempt 1 8:25 Gunshot attempt 2 9:13 Gunshot attempt 3

[@MrMagoo-no5lb]

MVP

[@leahflops9425]

cheers

[@RepublicanDemocrat]

What a whole. Just watch the whole video

[@karlmarx3705]

@@RepublicanDemocratno

[@aaeve5676]

@@RepublicanDemocrat don't really have the time

[@andrewdescant]

I really liked watching the knot in the 4x4 redirect the bullet back up into the bottom of the cradle.

[@shaddialbawab5360]

Can we just take a moment to appreciate Gav's joke at the end about Sir Isaac looking up at them with a smile on his face? Dan either didn't catch it or ignored it, while Gavin stood there smiling proudly.

[@preguicosodasala9277]

What?

[@The-God-Hands]

@@preguicosodasala9277 looks up at us

[@ProdigyKnight80]

I don't think i get the joke...

[@Rando_Shyte]

My only guess is a reference to Newton sitting under a tree looking up at apples... But yeah I've no idea. Theres no joke tho

[@r.d.marshall9383]

@@preguicosodasala9277 From his cradle.

[@joelwaller1726]

It was incredible to see the bullet fragments fly off then the steel balls go "oh right we should move". WILDLY good aim for all three shots Dan, you scary bro.

[@Anankin12]

And that's why the cow is spherical

[@everetthancock2043]

I thought the same. Kinda awesome. I was taught the steel balls 'cant move out of the way fast enough' and something's gotta give.

[@raydunakin]

That was amazing the way the bullet disintegrated when it hit the ball!

[@sethfelty8574]

How impressive that shot was by Dan is not being appreciated enough!

[@Reckless-mindfulness]

he was in the military, think.

[@Eagle3302PL]

​@@Reckless-mindfulness They're not trained to shoot at such small targets, they're taught to shoot at the torso. I think all his shots were impressively accurate.

[@iantaakalla8180]

Dan really has good spacial awareness as proven by his shooting and any video where he uses a sword for the most part.

[@RustyDust101]

That low bounce into the table and upward deflection was a once in a million shot, especially as you got in on camera in slow mo. You probably couldn't have gotten a more fascinating shot if you had set out to try for it.

[@katiekane5247]

It was cool!

[@famguy07]

I love how Gav couldn't contain his reaction when rewinding the footage. I know in the behind the scenes footage he mentioned that he tries not to digest anything that actually happened, but this time was just too much. Thanks for leaving that in.

[@DaysofKnight]

3:38 I would like to point out that: The Newton's Cradle Balls are so hard and dense, it dented the ball from the cannon

[@shockwave6213]

The bullet imparted less energy on the balls because it is made of softer metals that could not absorb the impact like a steel ball bearing. The shock on the bullet causes it to shatter, rather than transfer its energy. I would love to see this test repeated with a 5.56 green tip with the mild steel core. Keep in mind that Green tip is NOT armor piercing ammo because it is mild steel. All it does is retain its mass and shape when passing through a barrier.

[@the_nick_knack]

Astounded as always with the sound editing in the slow mo footage, well done with that

[@jazcena]

@Siatkarz shut

[@davidrice4873]

Im always impressed with the sound design especislly since i know he isnt a pro and he just figured it all out on his own

[@keatoncampbell820]

An expert indeed! Absolutely incredible. This is a perfect demonstration of collision types in physics. When using the ball bearings, because of their hardness and the hardness of the ones in the cradle, the collision was almost (but not entirely, as the pits on the balls show) elastic, with *most* of the kinetic energy being conserved, where the kinetic energy of the system afterwards was roughly comparable. If you calculated the energy of the balls afterwards, given their different speeds, it is roughly similar to the input energy. The softer and faster lead bullet on the other hand is entirely inelastic! Most of the kinetic energy of the bullet was either turned into heat through friction and shear forces, or deposited into the air and baseplate as the shards of the bullet sprayed out. The balls of the cradle, as the secondary object in the collision, maintained momentum and had some kinetic energy as a result, as did the cradle itself, but most of the energy was lost. You used a newtons cradle to demonstrate *inelastic* collisions. Physics professors will either adore you or despise you for this, but I'm positive Newton would have giggled after he stopped gawking at the concept of cameras that take photos, cameras that take so many photos it can play them quickly enough to convey motion, and cameras which take so many photos so quickly that they can capture motion faster than the speed of sound.

[@TheSonOfJustin]

this dude acts like we actually want to read 50 paragraphs

[@pdxcorgidad]

@@TheSonOfJustin I did. Leave people alone.

[@joseskoolii2761]

AHHHAhhhAhhAahh Yea Yea Psychics Wow

[@olojondro73]

@@TheSonOfJustin just 2 paragraphs bro sorry you can't read

[@dylanand75]

I mean to be fair, a slow motion camera taking a massive number of photographs of motion over a short period is a pretty good way to think about calculus (or fluxions as Newton originally wanted to call it)

[@violiotte]

Normally i couldn't keep watching a video over 2 minutes, but this channel guys, these videos i didn't get bored.

[@ItsaBlarg]

The first ball was hit SO hard that the welds gave way from the vibration. The second ball hardly moved but had a huge vibration force which wasn't enough to shear the welds clean off. The third, fourth, and fifth balls separated from their welds due to velocity to the best of my understanding. All in all this is a gorgeous example of physics in action.

[@EvanSchatz]

The bullet also grazes the second ball as it passes by, which probably slowed the ball down enough to not snap as it swung upward

[@angrydragonslayer]

Looks like string broke to me

[@bobh6728]

The first ball was hit slightly above center so when the projectile hit it there was a downward force that snapped the string.

[@DoggosGames]

I think those are cast.

[@angrydragonslayer]

@@DoggosGames balls = paid actors?

[@benjaminkim331]

9:34 Sums up their friendship from Gav's perspective. And to see his face while Dan discusses the shot is wholesome.

[@Blahnik1182]

Conclusion: To protect yourself from bullets, carry a Newton's cradle.

[@thatman6916]

It has to be "perfectly hard balls"

[@usedforks]

@@wkndevr819 wear custom body armor lined with Newton's Cradle balls

[@archer9338]

I have heard of certain people filling the outer walls of their mansions with ball bearings.

[@johnschneider931]

Only when shot by an expert with a lucky first shot. As that newtons craddle is shoved right up your um hole it should spread out doing " less " damage.

[@nancyb2003]

Incredible video! I most enjoyed the FUN the two of you experienced with the unexpected bullet outcome. Helluva shot, indeed. Bravo!

[@SHADOW-ke6xz]

I've always thought about this but have never said anything but, your guy's friendship above all else is a really cool thing to watch and be a part of. Thanks for all of the videos you have made over the years. Keep it up.

[@nickh558]

This would be really cool with a custom Newton's Cradle with much stronger wire! It seemed as if thats were its main point of failure was when hit with the BB

[@jonathangoliath91]

the point of the newton's cradle is to have as light a wire as possible.

[@greybeard5123]

I thought the weak point was the connection. Most wires ripped off of the balls instead of breaking.

[@courtneyconaway3091]

Get it done, #markrober

[@RoboticMagus]

It's not the wires that broke first.

[@hamshankscps1049]

I'd like to see this with a Newton's Cradle that was secured by metal wire, to see the difference between the wire and the nylon.

[@maebon]

Would just pull the frame away easier. The frame doesn't have enough weight the impede the momentum of the 4th ball.

[@edwardcardona717]

@@maebon Maybe they could secure the base some way?

[@Eluderatnight]

Fiber wire(braided fishing line) is stronger than steel of same dia.

[@maebon]

@@edwardcardona717 They could, but then you're back the wire just snapping. There is a lot of force being transferred into the cradle, it would take quite a bit of engineering to make a functioning cradle that doesn't either snap off the wire immediately or send the base flying off.

[@unclenopockets9517]

@@maebon thats the whole point tho. to see if you can, and to see if theres any difference between the types of wire.

[@zaidlacksalastname4905]

I have a final exam tomorrow, in less than 10 hours. I am watching grown men shoot metal balls. Worth it

[@soilman3882]

How’d your exam go ?

[@danielmendes5682]

the bullet going into pieces was an amazing shot indeed, great job

[@baptistebauer99]

That outro with the exact timing for the sunset was awesome. That whole shot, you can see the Sun disappearing, until the last ~ 15 seconds. The video itself was super interesting, I imagined this behaviour would happen but not for the correct reasons. Thanks a lot!

[@Goldtiger142003]

"If they were perfectly hard balls..." followed by that snicker was peak dude comedy. 10/10. I shouldn't be surprised that the bullet barely damaged the balls, but there's just something magical about seeing one of mankind's worst inventions failing so spectacularly against a single sphere. It's like something straight out of a science fiction movie.

[@skussy69]

Best inventions*

[@HeckYouEpically]

Typical american smh 💀💀💀

[@DJ3thenew23]

@@skussy69 Definitely worst

[@CheeseyMilkshakes]

@@skussy69 The millions killed by guns disagree bro

[@emilefragz1885]

@@CheeseyMilkshakes The millions saved by them, agree.

[@tangoraven]

Amazing to see the bullet hits the cradle and flies off first and then the cradle does. The friction holding the cradle resisted motion for a while, gave up and then whoosh!

[@GenericaQwerty]

You two are the very definition of "greater than the sum of your parts". I could have watched a one hour video of this and still wanted more. Any time Dan gets to be Smart Dan is such a treat, and Gav that was some incredible footage and sound design!

[@rhouser1280]

It’s crazy how “long” it takes for the cradle to move after being shot.

[@CogitoErgoMetuo]

That is what surprised me also. I wonder what the explanation for that is.

[@speedstone4]

It must be the air flow following the bullet that pushes the cradle, not the bullet itself.

[@HappyMonkeyYT]

@@speedstone4 Probably the fiberboard is compressed, and then springs back.

[@speedstone4]

@@HappyMonkeyYT that doesn't make sense to me. Whatever you mean by fiberboard, if it springs back, shouldn't it go in the opposite direction?

[@HappyMonkeyYT]

@@speedstone4 (not a physicist, educated guess) the bottom of the base is compressed, then re-expands, and overextends, pushing it off the table. Additionally, the direct transfer of energy can only go through at the speed of sound in that material, so that's part of the delay.

[@grahambo-42]

8:12 That deflection as a result of that little bit of impact with the wood is INSANE.

[@PrimeSuperboy]

Jesus that triple collision in the first shot was incredible.

[@TheAruruu]

Video Suggestion: Get a centrifuge (the kind used in labs to separate things in suspension), remove the housing/case, then film separating things at a frame rate where either each vial makes one rotation per frame, or where each frame captures the next vial at the exact same location, and see how various things separate in the centrifuge, in real time, as if it wasn't spinning at all.

[@brighamruud5090]

No, no, this is genius. I genuinely don’t know how this isn’t a popular comment. I hope you have a good day sir/ma’am!

[@uuzd4s]

The initial "ball" rounds had a very large amount of energy absorbed as evidenced by the cratered Newton's Cradle ball. Would be much more energy transferred with harder materials, like tungsten rather than mild steel. And . . the 9mil round was pretty intriguing to say the least. Nice Piece-O-Werk Boys ! ! A thought . . I've seen vids of car audio systems actually turn auto glass into a "wave over water" without breaking it . . slo mo worthy?

[@igrim4777]

That the Newton's cradle ball was cratered is actually evidence that energy was transferred since it takes energy to deform the target. You are right to say that energy was absorbed by the target, but that energy could only be absorbed by the target if it had been transferred to the target.

[@JustAksyon]

as someone who didnt finished school, this Is very worthy 👍

[@davelowets]

I've seen car audio systems actually tear the factory body sheet metal on a vehicle before. It's pretty awesome that a sound system can destroy an automobile. Metal gets torn, glass breaks, holes end up in metal floors, dash boards and interior parts get blown apart, tail lights fall off, etc..

[@sottozen]

I'd definitely make a keychain out of that hit sphere! Gret vid as always!

[@D3ADC4ANN31]

@cnmmd qiuoo w h a t

[@Calvarydima]

However does the sound for you slomo-guys!! He or she is your rocking star. Your Diego’s would be like films of pre sound ages in theaters. Doing such a great job

[@GenericaQwerty]

Gav is the editor and sound designer :)

[@simonalbrecht9435]

I would have loved to see the experiment with ‘stronger’ Newton's cradles: maybe one with a large number of balls, or clamped down, and/or reinforced do that the frame doesn't get yeeted along.

[@micahphilson]

I love when Dan gets to use his army training and expertise, and remind us all that he actually is a professional!

[@nigilvalikodath]

So happy Gav and Dan are reunited and back to their old antics :D

[@Freeflying1234]

This channel is underrated :) Its just a blast watching these guys working what they clearly love doing.

[@Frog9er]

"Definitely a smile on his face as he looks UP on us" Hahaha, Gavin is great

[@bindingofash1824]

Pls explain

[@MattieIris]

3:45 The fact that the little sphere hit the other one more than once is insane! Can you imagine that at normal speed? Incredible.

[@Hendleyed]

This!! Freaking triple hit :o

[@kindlin]

@@Hendleyed The hits go 1st, 2nd, 2nd ball bearing. I had to rewatch it to catch that.

[@stefthorman8548]

@@kindlin it got hit 3 times

[@kindlin]

@@stefthorman8548 Define "it." The projectile hit something 3 times. The front ball bearing got hit once, and the second ball bearing got hit twice. The remaining ball bearings were not contacted by the projectile in these frames. I think the fact the 2nd ball got hit twice is pretty interesting; the shot must have been lined up very well.

[@SinisterFlamingo]

If I hadn't seen it with my own eyes I would not believe the bullet shattered on impact! That was PHENOMENAL I can't express how cool this video is oh my word!

[@TTOS69]

I'm glad you guys include firearms in your videos. Their not scary death machines. It's all about the person handling it. I must say, much respect from a simple southern boy who enjoys the freedoms that were passed down to us from our founders. Isn't it great we kicked you brits butts back then? You wouldn't be able to do this otherwise almost anywhere else in the world! Much love from North Carolina!

[@magi1134]

This unironically went from a fun slow mo video to an outstanding physics demonstration of how force is transfered

[@ZoBeeWitched]

I find it more impressive that Dan fired the round perfectly between the Newton's Cradle and the wood it was on! I love these things! So cooooooooooool!!!

[@paulmartinek1716]

That was absolutely amazing footage, Nice shot Dan, you guys are awesome! Having had the privilege to meet Gav in person this last week was hands down my favorite "famous person meeting", the love that you guys have for what you do and the for the people that adore you for it, is very apparent. I applaud both of you for inspiring generations to pursue science and things that intrigue them, I hope for many years you are able to enjoy what you are doing here. If you ever make it back to Seattle and want a tour guide, I would be more than happy to show you both my hospitality.

[@acbenepe]

I think Edgerton is smiling down as well. Nice one guys.

[@OfficiallySnek]

Isaac: "Yes bois"

[@tom_something]

I've never really taken a close look at how a Newton's cradle is constructed. But it seems that the interface between the ball and the string is a welded-on tube. I think what happened to that first one is that the impact sent a sort of ripple that caused the welded joint to fail.

[@revan3675]

Wow, this felt so much like an older video I thought it was one. I've been going back and watching all the old videos and saw this in my recommendations and didn't realize till over halfway through its new and it blew my mind. You both are great and it's cool to see how things are still the same as they used to be

[@biggusy25]

Wow, the second ball got hit three time (on camera). That has to be an incredibly aligned shot to stay on the exact same plane for that long.

[@AnchorJG]

I love the delayed reaction of the air pressure blowing everything away. But then there's a similar delayed reaction with the bullet and it's just mind-bending.

[@hrchanz]

What a great shot Dan! That final one was really unexpected and it's so cool to see! I love that both of you are together so much great content!

[@TheFinalRevelation1]

Place 5 steel balls on a level surface, magnetize them slightly so they stick to each other very slightly and then repeat the experiment

[@stahlschorsch]

Hard to get them to stay in line I guess...

[@basilpunton5702]

@@stahlschorsch Put them in a groove.

[@WeighedWilson]

Don't even need to have a magnet just tilt the whole assembly up a degree or two and place a chock on the downhill side.

[@TheFinalRevelation1]

@@WeighedWilson Good point, I was also thinking about balls of different sizes, i mean from large to small in succession

[@TheFinalRevelation1]

@@stahlschorsch Absolutely necessary they are in contact so that the impact gets transferred to the last ball

[@blakeolinger1220]

That 9mm shot into the ball was freaking awesome.. So glad I found your channel

[@vakuum1000]

Hey Gav and Dan, I really love the videos you make, especially the ones with a bit of an educational touch to it. And since I'm a music teacher I wondered if you might want to try and make sound visible. For example I noticed that when you use one of those pressured-air-powered Horns, you can sometimes see a kind of 'flimmer' right infront of the horn (not dissimilar to a mirage effect on top of a hot street in summer for example) I would really love to see that in slow mo. Greetings from your fans in Germany!

[@4thfrom7]

Best request I've ever seen these guys get.

[@IDontReallyWantAYoutubeHandle]

Maybe not exactly what you're looking for, but they have done this three years ago right here with sand and speakers! kzbin.info/www/bejne/gl6Wn56Jmd6npZI Still very interesting Edit: Apologies, that's the wrong video, though the latter half still does deal with sand and speakers. I'll try to find the video I was originally taking about, but the vid above still is pretty interesting

[@emilioortiz4663]

I think it’s the air being released rather than sound doing that

[@Chasmodius]

They could do tuning forks near the surface of still water -- that would be a pretty neat demonstration of sound waves. Or maybe through smoke or steam?

[@JM-yh4yf]

@@emilioortiz4663 thats what causes the sound!