A Solid 20 Minutes of Useless Science Facts (ft. Hank Green & More!)

[@TommoCarroll]

Which fact was your favourite?

[@lizzieluz]

The factor of safety is my favourite useless fact

[@MedlifeCrisis]

Mine, obviously

[@ArlenKundert]

The part about fiber optic cables, but I also work in network engineering, so I might have a bias...

[@skyswinger5249]

The one about marine iguanas sneezing. I frickin' love marine iguanas.

[@TheRealQuickSilver]

I think the one that astounded me the most was the one about Mayflies. I don't understand how their cells could even generate that quickly.

[@MedlifeCrisis]

Mate you don’t take the easy option of just stitching it together, you really make it much more engaging…and much more work for yourself! Great stuff!

[@TommoCarroll]

Me thinking about taking the easy option is like putting a plate of Krispy Kreme donuts in front of me and trying to not hoover them up Thanks for being a part of it mate! I loved having you in this one :)

[@HaydenTheEeeeeeeeevilEukaryote]

@@TommoCarroll i wholeheartedly agree with medguy here, you did a great job making it feel much faster than 20 minutes

[@goonimann5028]

My favourite cardiologist, I’m so happy your in this video!

[@doctor_who1]

Cardiologist that knows more about anaesthesia than Anaesthesiologists? Hmm...

[@DrAndrewSteele]

This video is a complete waste of 20 minutes 41 seconds. I loved it! Thanks for having me!

[@TommoCarroll]

Haha, that's what I like to hear!

[@ZephyrysBaum]

@@TommoCarroll You are now one of my ~450 subscriptions!

[@Xenko007]

@@ZephyrysBaum What dose this even Mean

[@ZephyrysBaum]

@@Xenko007 I have subscribed to 450 people

[@jewelweed6880]

@@ZephyrysBaum 😂

[@GabrielDemetriusSilva]

As a Engineer at the aeronautical industry I can say to you that there are REALLY strict rules on what is considered to be "the loads expected" on a airplane. Yes, the factor of safety can be considered "small", but the "expected loads" is actually waaaaaay higher than any regular operational load. The level of safety of a airplane is State of The Art in the engineering world. :) Fly safe, fly relaxed.

[@theresaduffy8222]

Thank you

[@feckineejit]

Yes I needed to hear this

[@Tht1Gy]

😱😱😱

[@bbgun061]

And the number of cycles is tracked so the airplane can be retired before metal fatigue occurs.

[@creativecraving]

That makes sense, because the airplane can easily increase the load on the fuselage and wings during an emergency event. It didn't make sense that you could have such a small safety factor and still have such insanely high survivability rates otherwise.

[@omershalita9592]

Tommy: hey guys, please make sure that your videos are no longer than half a minute long Wren: *stares intensely*

[@whateverd]

literally. i dont wanna be that guy but it felt annoying

[@kindlin]

2:14 As a structural engineer, I loved this entire segment. And I had heard of the the super low factor of safety of aircraft, but I believe it's more like 1.5. While in spaceflight, it routine gets down to below 1.25, or even 1.1 or lower, depending on how much that extra design capacity affects the weight and how variable the loads are. Modern structural design mostly uses LRFD design, verse the ASD (Allowable Stress Design) being discussed with all of these factors of safety. FoS are easy to understand and implement (FS=5, *BAM,* you're much safer), but miss a lot of nuance is the statistical nature of the _maximum anticipated load_ that you expect your system to have to support/resist. In Load and Resistance Factor Design (LRFD), you apply a factor to various applied loads, like wind, earthquake, self weight, snow and live loads, based on how likely they are to occur simultaneously (1.2D+1.0E+0.2S), and you also apply a different factor to the capacity side of things, based on how variable the type of fabrication is for that type of member (rolled steel = 0.9, welded connections = 0.75, brittle concrete = 0.65). Taken together, the Load Factors and the Resistance Factors are intended to provided a 1:10,000 chance of failure of any given member experiencing its maximum design load.

[@user-gy9re6yn8b]

👆

[@artemisfowl9382]

ok

[@TheBenenene10]

Did you just get EVERY sci KZbinr? With that lineup you could start a Edutainment YT Rewind

[@TommoCarroll]

If this video does well that is genuinely the plan! So…help a fella out and share this monstrosity!

[@EpiphoneShredzzzzz]

@@TommoCarroll you should get Kyle Hill on the next one! He's easily my favorite, right next to good ol' Hank

[@TommoCarroll]

@@EpiphoneShredzzzzz I tried for this one but will try again next year!

[@1qstudios]

but where is vsauce

[@petevenuti7355]

@@1qstudios oh that cartoon with the bulldog came to mind... This time I did not forget the gravy.....

[@minecrafter0505]

Wren misunderstood the point a bit, so interesting :D But also, his safety factor is based on the carrying capacity of the aircraft, which isn't the only safety factor to consider. For example, four-engined planes can still fly with just one engine running.

[@samwalker2367]

He just wanted to be the center of attention

[@ScubaSteveabc]

I'm also pretty sure the standard safety factor for most commercial aircraft components is 1.5, and the factor for the pressurized fuselage is 2. Safety factors as low as 1.2 tend to apply to components like landing gear - which are obviously still critical but not somewhere where failure will likely result in serious injury.

[@danielm2549]

Wren's understanding of safety factor of airplanes was far off. While yes, the safety factor of airplanes are typically 1.5, not 1.2 mind you, planes are designed to actually hold up to 2-4 times their max gross weight, PLUS the actual safety factor on top of that. Although their landing gear probably couldn't, their wings can due to increased weight in turns and possible emergency situations.

[@willliamlockhart]

He was also generally wrong about structural safety factors which usually range from 1.2-1.5. I don’t know much about elevators but the IBC seems to say they have a safety factor of 5.

[@A_Random_Ghost]

@@samwalker2367 😶😶😶

[@Nufuckingway]

As a former lift/elevator engineer, a lift made for 10 people cannot lift 100. It will start sliding downwards because a lack of friction between the belts/ropes and the motor wheel. The safeties will catch you though, but it won't be pleasant and getting you out will be an absolute pain if you've gone down far enough. It will most likely start sliding around 15 isch depending on the lift, individual weights etc.

[@ctakitimu]

And is it 10 Filipinos or 10 Samoans? They should display the current load compared with its limit on a little digital readout. That always used to bother me a child.

[@user-ml6dk8sk4e]

Oh !😮

[@lloydbush]

18:00 The only time I'm ever gonna see a guitar mistaken for a bass! LOVE IT!!!

[@peppersalt]

14:03 the female mayflies you are referring to do not die 5 minutes after being born, but 5 minutes after they molt from their juvenile form.

[@TommoCarroll]

True, my wording could have been better

[@brettbarager9101]

As a person who is a "Wealth of Useless Information," I appreciate being able to add this to my wealth!

[@georgielancaster1356]

A lot of these are spews of facts of decades old fact podcasts/videos. Disappointing. And appallingly vague and unacceptable. A lifetime of saliva is the same as 2 pools. What size pool? Kim Karcrapion factoid.

[@szymonsowicki]

5:05 Maria Skłodowska-Curie was actually Polish, not French. The fact that she was married to Pierre Curie and that she had a French citizenship doesn't make her less Polish, as she was born and raised in Poland. Her last name Skłodowska should always be remebered as it was her real name and Curie was taken by her as a way to connect to the French science enviroment, besides of course being connected with her husband.

[@geekyvors2837]

🤓

[@coletm7146]

@@geekyvors2837 bruh this is a video on science facts tf else you expecting

[@camelliaraychaudhuri742]

And most importantly, she named the element she discovered after het homeland. 'Polonium'

[@josephc.9520]

@@camelliaraychaudhuri742 Rather than Francium Ill show myself out

[@camelliaraychaudhuri742]

@@josephc.9520 haha although we have her student to thank for that so...

[@TristanSharman]

Fantastically useless video, it was an honour to be a part of it!

[@pythagoras646]

Actually your fact is not true...the largest single living organism, is a fungus, which is about 2300 acres in size

[@bernardkariuki1365]

@@pythagoras646 Oh yeah, I learned that useless fact from somewhere. A mycelial network that became it's own underground communication highway or something with a shared connection of roots. They'd all work together to keep the trees and plants on the network alive or share water and nutrients with those that didn't get enough. Weird community I'm a part of. Love it.

[@JosefK29364]

Wren was the kid who didn't read the instructions and did the whole project the first night while everyone else just picked their topics.

[@Fogmeister]

“Glass cow”?!? 😂 Scotland needs to have a word.

[@dylanpritchard4981]

This could have been 5 hours long and I wouldn’t have realized! I was just entranced by never ending facts!

[@anon_imowy]

Marie Skłodowska-Curie wasn't French, she was Polish, that's why the element she discovred is called Polonium not Frenchium

[@bradh4848]

There is an element called francium though...

[@acidbunny999]

Yes. Please don't take this one from us

[@CommandantNOVA]

This is the most ambitious crossover event in history.

[@jamesupton5914]

Love the eyes and ears fact. Makes so much sense when you think about how often one darts their eyes to try to locate a sound.

[@jackbrennecke3440]

i can legit feel my eardrums softly shift when i look side to side fast

[@spacemanspiff3039]

I live maybe 20 minutes from Pando, and she's one of the most gorgeous creatures, especially in Autumn!

[@kamikazeviking3053]

6:22 The Japanese word for humming is "鼻歌" which roughly translates to "nose song"

[@TommoCarroll]

God damn it I love that

[@HaydenTheEeeeeeeeevilEukaryote]

You can actually still hum with your nose plugged, just only for a short time before needing to stop to let the used air flow back into your lungs so you can push it back into your mouth and sinuses again. And this does technically allow you to hum. Fascinating. 6:30

[@KristenRowenPliske]

Not a very good hum, I’ve discovered just now. Sounds more like I’m trying to blow my nose 😁

[@MasterCrander]

If you allow the air to also empty into your mouth and fill your cheeks you get a little more time

[@DanWi90]

How do you hum? I can just hum normally trough the mouth!

[@HaydenTheEeeeeeeeevilEukaryote]

@@DanWi90 I think what makes humming "humming" instead of just..."musicing..."? is specifically having your lips closed while doing it. When I open my mouth I can make the sounds all the same, I just need airflow through somewhere. Plugging my nose and mouths gives me a time limit.

[@SirCutRy]

@@DanWi90 When you hum with your mouth closed, the lips don't contribute to producing the sound.

[@whiteink225]

Marie Curie was polish not french. Her name was Maria Skłodowska Curie

[@nothingtoseemiano9895]

Its fun to see which ones youve already known simply by watching creators like these so much, and its fun to learn something new

[@Pktommy1]

“Air planes go through so much testing so they’re strong enough to not break in the middle of a flight” 3:56 Boeing in 2024: 👁️👄👁️

[@szymon.o]

5:05 there will never be a day when someone calling Maria Skłodowska-Curie "Marie Curie" or "a French scientist" will not bug me. I would expect more precision, especially from science entertainers, because this is truly disrespectful, both to Skłodowska-Curie herself and the Polish nation as a whole.

[@HawasGames]

Yeah, like why would she call the very first radioactive element discovered "Polonium" if it wasn't for the fact she wanted to commemorate Poland (and also draw attention that it's been partitioned and erased from maps and Polish nationality was being repressed)

[@Night_Scroller]

Exactly! Thank you!

[@TravisGilbert]

Thanks so much for including me on this Tom!

[@jeffhappens1]

Love your content!

[@TravisGilbert]

@@jeffhappens1 thank you!

[@TommoCarroll]

Thank YOU for being a part of it!

[@DampeS8N]

2Fast2Curious

[@Anvilshock]

There's a difference between being "included on this Tom" and "included on this, Tom". Did you ever get _off_ Tom again?

[@Froahk]

17:55 talks about the similarities of the sky being blue and a guitar string shows a 5-string bass jokes aside I absolutely love this series, some of these facts have had me burst out laughing

[@lunaakuma5044]

As someone Polish, It irks me just a bit when people "Marie Curie" her proper name is "Marie Sklodowska -Curie" and I know it is not the point (probably just English making it easier for people) but it feels like people are forgetting her Polish heritage by only using her husband's name

[@user-ue5lt7dz9v]

👆

[@Sebastian-rf1hz]

The "why is the sky blue?" one is kind of incorrect. It has something to do with the shorter wavelength of blue light because shorter wavelength get scattered more, but as far as I know there's no resonance going on in Rayleigh scattering.

[@dhruvdas2770]

exactly! was looking for someone who noticed.

[@kindlin]

I was wondering if maybe I didn't understand scattering on some fundamental level. What I think he means is that the light can only be absorbed when it strikes the molecule at one of its fundamental frequencies, and the electron is sent to a higher excitation state (think: spectroscopy). But really, Rayleigh Scattering is not absorbing, but kind of deflecting or siphoning some of the energy from the incident light.

[@Sebastian-rf1hz]

@@kindlin Yes exactly, in Rayleigh scattering there are no real existing energy (and therefore no defined frequency for resonance) specific excitation states.

[@Renuclous]

6:31 fun fact, you actually CAN hum with both mouth and nose closed! You can deposit the air in your closed mouth and shorty hum while lowering your jaw.

[@tommunyon2874]

One Easter vacation my sister and I attempted to hike from Los Alamos to the Valle Grande caldera. When we got into the aspen grove we met out match. The fallen trunks and tangled roots made it into a giant pick-up stick game that required one to climb over, duck under or squeeze through consecutively, in no particular order.

[@grzegorztlusciak]

05:05 - Maria Skłodowska-Currie as Polish! I hate when people don't acknowledge that and say that she was French. She was French only by marriage.

[@likebot.]

Man, you've really come a long way since your YT commenter days. The circles you travel in are amazing! Keep up the great work too.

[@TommoCarroll]

Haha my 'KZbin commentor days!?' what was that?

[@Ballberith]

Marie Skłodowska - Curie wasn't French. She was Polish.

[@EpicSpaceman]

Love this, thanks for putting in so much effort to make it so interesting and entertaining!

[@TommoCarroll]

You're welcome! Thanks for watching the vid and dropping a comment :)

[@maryrosekent8223]

FAVORITE FACT: Bees using pumpkin flowers as sleeping bags

[@user-gh4gl8pk3u]

👆

[@kandystorressantiago8865]

10:47 creeps me out. I just imagine the moon falling into the Earth.

[@ckq]

Bro got half the people ived watched on KZbin

[@TommoCarroll]

I’m so stoked they were all so up for getting involved! They’re the MVPs!

[@stefanschneider3681]

The one that struck me the most is the length of dna we produce over our lifetime - being a md and a hobby astrophotographer that hit me twice 🤣!

[@petevenuti7355]

Made me think of the spaghettivacation....

[@xcoder1122]

My favorite facts were that arctica means "bears" and antarctica means "no bears." I have known these terms since I was in elementary school, but no one ever told me what they meant or where they came from and I never bothered to look that up. But it was also pretty cool to learn about the "safety factor," since I assumed there must be such a thing, but I had no idea what it was called or what values to expect in the usual cases.

[@poopandfartjokes]

Wait until you find out that Antarctica has two C’s. 🤯

[@JaeGSL]

"....drugged the shit out of some bears .and yeeted them out of an plane at Mach 2" This took me out! Lol

[@hannahlenk7426]

„the chair you’re sitting on” bold of you to assume I’m not laying in my bed

[@user-ue5lt7dz9v]

👆

[@teekaa2520]

Sorry the Factor of Safety part is wrong. And Wikipedia is partially wrong. The factor of safety accounts for uncertainties in the design, loads, material, manufacturing, environmental conditions... There is a misconception in that engineers calculate strength. They don't. They actually estimate strength with math and other means. Aircrafts have safety factors of at least 1.5 for most parts, but rarely exceeding 2.0. Also different factors of safety for different uncertainties are layered on top of each other (mostly by multiplication). A Factor of Safety can be decreased by increasing certainty. For example: more complicated math in the estimation process, strength tests (the best part of engineering), quality control during production...

[@teekaa2520]

But the rest of the video is pretty cool

[@teekaa2520]

To expand a little further on the safety factor (SF). Language and definitions differ between industries and areas. In general the highest load that can be reasonable expected during operation is the limit load. Based on standards and regulations (where they apply) and experience (where they don't) a SF or a set of SFs is defined. Limit load times SFs gives ultimate load. The design is based on the ultimate load. To exceed the limit load "because there's a safety factor involved" is wantonly negligent and if the justice system works as intended you go to prison. To suggest otherwise is incitement. I have seen regulations that state: You may apply a SF of 2.5 if you don't test the structure, but 2.0 if you test to limit load or 1.5 if you test to ultimate failure. The value of the SF may depend on the importance of the structure or the condition of the test. Extreme cold or extreme heat or both, maybe 90% humidity thrown in for good measure or you must use an intentionally degraded test subject. To select the appropriate safety factor is incredibly complex. To reason that it gives you a pass for misuse, well I made that point earlier.

[@JC-dt7jv]

Thank you. Came here to say this. Rockets are typically 1.1 to 1.2 per Tory Bruno. FAA wing test requires 1.5x max wing load per it's standard. In my industry 1.5 - 2.0 when comparing nominal load vs nominal strength is typical.

[@Nerdnotwashere]

Yep, just confirmed with my father who recently retired from working on aircraft after 30 years. Commercial aircraft is at least 1.5, and he knows several articles to prove this.

[@emfournet]

One thing to remember about that 1.2 FoS for the airplanes... That's loading it 20% above the absolute maximum, then subjecting it to the worst possible in-flight conditions the aircraft will ever encounter, and no airline would ever fly in- think loop-the-loops in a hurricane- and it won't break. That's pretty dang impressive.

[@ssdd28561]

... and every second in the air gives you fos "for free", because like 20-50% of the weight of the plane is fuel. But the thing that was helpful for my mind, is that you can break almost every system, and the plane will still be flying. Typical example is that 4 engine plane will survive with 1 engine left. So its "layman's fos" is like 4+ - if you can survive with 1/4 of the things that make you fly. And now you can think about max load on top of that and the worst possible weather conditions.

[@kindlin]

@@ssdd28561 And things like landing gear and your wings have a built-in dynamic FoS upwards of 2.0 (1.5 min). Also, anything directly necessary for humans to survive, like pressurization, etc., will be at the standard 2.0 minimum FoS.

[@Miss_Trillium]

As much as I like Wren & CD, I feel like his fact missed the mark (between the fat joke and pointing out that the Safety Factor was less than other things without explaining why it's still safe)

[@David-ln8qh]

Agree about the fat joke.

[@PageNeedsaLife]

Same the fat joke was really disappointing. I partially watched the video because he was in the thumbnail and it was just a bad time all around.

[@donotenter4842]

So much knowledge but the one thing I remember the most is that ‘we fart enough in one day to fill a party balloon’

[@danielrosera5726]

"The mad hatteripiler". I'm dieing rn 😂😅

[@hannahbrown2728]

As my first exposure to your channel but not the format, putting Austin McConnell first of collabs has me cracking up!

[@TommoCarroll]

Haha glad you liked that!

[@Knooblegooble]

6:34 You had me looking at size comparison charts to make sure I wasn't crazy, I believe it's Jupiter is twice as MASSIVE as all the other planets combined.

[@u1zha]

Amasia and mad hatterpillar = ❤ And noone dares to outdo Tom Scott's deadpan humor

[@guenthersteiner9252]

The scientist who named that fungus after Spongebob is a legend

[@MrCodename]

"The internet weighs about a tennis ball" yup I'm stealing that

[@saralynn518]

Wren: Chair designers know fat people love chairs. Me: I do. I do love chairs. I thought it was because of my spine and hip disorders, but I still love 'em! Oh, I'm lazy, too.

[@strlslvr987]

Don't all people love chairs though? Jeez

[@rklauco]

This is getting progressively better :) Thanks! And great collabs!

[@TommoCarroll]

If this video performs well and there's a volume 3, I'll aim to make it progressively better again!

[@rklauco]

@@TommoCarroll The only problem with this video is that the facts are getting less and less useless :)

[@marcopohl3236]

Finally someone explained that Orca fact correctly

[@nahidparvez7346]

When Wren arrives.. Man, I just love this guy a lot. The way he talks gives me vive of energy, excitements..

[@user-gh4gl8pk3u]

👆

[@michalslusarski]

5:04 that sentence's probably gonna anger some Poles 😅

[@skyswinger5249]

5:34 Okay, no joke. Marine iguanas have been my favorite animal for at least two years now. This fact is something I already knew, but still greatly appreciated 😊

[@TommoCarroll]

I've just wanted to share this fact for agessssss, so I'm stoked you still liked hearing it again!

[@linuxliaison]

This is far better than any YT Rewind that the tube could make

[@ChaoscelusApollyon]

this is like school but I actually enjoy it

[@engineeringtehmetals]

In response to Wren's comments about the factor of safety of airplanes, it has everything to do with the material used. Aircraft metal is made to a much higher standard than the steel used in elevators and buildings (big part of why it's called aircraft aluminum or aircraft metal) and when the material is much more consistent the factor of safety doesn't need to be so high.

[@micahphilson]

_Me literally in an airport waiting for my flight_ "The factor of safety of a plane is 1.2!"

[@Sharonmxg]

I could watch/listen to 120 minutes easy. More please.

[@Lyonette0]

I love this! Every single fact is a door to whole (useless) research

[@suchitrasridhar5313]

This was not only interesting, but also introduced me to a bunch of EduTube channels I had not heard of. Thanks!

[@itsgonnabeanaurfromme]

Pop science youtubers, you mean. Well youtubers and a neoliberal "journalist"

[@scept3r.studios]

Footnote on 4:26, the place is called Taal Volcano. Before it erupted in 2020, you can actually see the view of the volcano in Tagaytay, Batangas. The more you know :))

[@user-gh4gl8pk3u]

👆

[@erichanson3369]

Many people are afraid of flying in an airplane because they can't overcome the thought of falling, or due to claustrophobia, or because of a fear that the plane will be highjacked, or for the perceived relative lack of physiological control while one is so unnaturally high in the air. I'm now scared to fly not for any of those much more common reasons, but rather because of my new knowledge of the comparatively low factor of safety sky vessels have. Thanks, Tommo Carroll and Wren, you just helped inspire a new phobia in my brain.

[@user-gy9re6yn8b]

👆

[@VectorScalar01]

Half of these facts come in exams

[@rzaappa]

exactly.

[@playerguy2]

(Soon to be) Engineer here: The factor of safety thing was well explained, but a more detailed version would be "The factor of safety is there to account of mistakes and unknowns, such that the object surely breaks *after* it has served it's purpose. Airplanes are well understood and checked often to make sure they will surely survive 'n' more flights."

[@user-ue5lt7dz9v]

👆

[@Cloveis]

Even after the whole factor of safety bit, I’ll still say I feel safer on a plane than on an elevator.

[@coolguyhino92]

.....watching Wren's airplane speech hit different after the recent Boeing debacle.

[@sinfulhappiness]

For real. 😅

[@MatthewVandeputte]

Thanks for having me my friend!

[@letszer4520]

My stomach can dissolve a razor blade but can’t get over itself when I’ve had diarrhea for 3 days

[@Blaster_Unity_UB]

This was actually very fun to watch, although it could be called wasted, but I quite like useless facts!

[@milandeclercq5747]

Man this video is a treasure full of conversation starters.

[@dylantrinder1571]

It amused me when you used a PIA aircraft as an example during the “factor of safety”. I’m not sure that they have a FoS of 1.2! 🤣

[@frankhurst9665]

The saliva fact reminded me of a George Carlin joke. "Saliva causes cancer, but only if swallowed in small amounts over a long period of time."

[@not1not2but3]

8:59 “another reminder we can’t trust our own eyes” The government:”can we get her on payroll?”

[@michaelafitzgerald721]

Mayflies actually live months to years in an aquatic nymphal stage after being born, and then those 5 minutes are when they molt and emerge from the water as adults! Very cool insects!

[@Bobolouis]

One of my favorites is one you might consider for your next compilation: Every planet in the solar system would fit between Earth and The Moon.

[@angelr9096]

"Your ear drums move with your eyes" Everyone: *pause, look left and right, listen*

[@user-gy9re6yn8b]

👆

[@AllisterMacDonald115]

9:39 As a Scottish person who lives in the other Glasgow, hearing that hurt lmao

[@Typewriter7]

8:25 Cygnus Cygnus - Whooper swan, one of my favorite birds

[@sachafriderich3063]

I love how i see a bunch of my favourite creators in the same video

[@user-ue5lt7dz9v]

👆

[@ameliaarrows2790]

Not corridor crew scaring me before I go on a plane in a month 😂

[@TapiocaSteam]

The actual middle of Nowhere is in Oklahoma. To be exact it is next to the pork rinds (unless the store has been rearranged since the last special was filmed) in Nowhere, Oklahoma.

[@DoesRocksFloat]

2:30. Not anymore. Things are designed to break or wear out. Cars to chairs just so you have to buy a part or a new item. I bought a fancy ass chair with great back support. That shit has fake leather that started to wear out a year into use.

[@eriszuny]

0:43 "To be exact" when it's an approximation, lmao

[@danieluzo]

“Fat people love chairs” lmaoooo

[@tnmusicgirlxD]

"I can't believe you sat through the entire thing"; don't underestimate the power of the ADHD need for useless facts.

[@jakobmax3299]

10:11 is really fascinating. Only recently have we achieved high enough presicion that it cant be felt.

[@Him_Dante]

4:26 i was not ready for that 😂

[@jakepeckhamuite2574]

6:20 the humming fact. You can just exhale through your mouth rather than nose.

[@HayTatsuko]

14:03 The taxonomic order of mayflies is one I really love: Ephemeroptera. It's from Greek and basically means "the winged creatures that last for only a day." Thank you for wasting this time of mine with all these interesting, but useless facts!

[@user-ue5lt7dz9v]

👆

[@ThisZombieBitesEverything]

Never ever have I ever smelt corn chips from a dogs paw 😂

[@airaruangroj]

I literally "met" orange oranges when I was 15 years old-ish, when imported fruits finally arrived to the local market. Before that? Oranges were always green for me.

[@gtsguy4138]

Aeronautical engineer here, fortunately aircraft are much stronger than wren suggested. Aircraft wings tend to have a factor of safety of 1.5. This in comparison to the maximum load the wing is designed to carry which is in an airliner is around 2.5g and 2.5g is already much higher than most airliners will ever experience in service.

[@ThunderTimer]

Ngl it's not useless at all 90% of all these facts were amazing and new to me Love your videos Tommo