Einstein Wasn't The First Scientist To Talk About Relativity

[@cj-seejay-cj-seejay]

haha I just keep imagining people outside the bathroom hearing you talk to yourself about relativity

[@stvia]

While almost peeing their pants because they have to actually use it

[@aux_fox]

LMAO the thought of the flight attendants sitting outside like “wtf”

[@ShadowDragon8685]

@@stvia Two minutes is not an unreasonable time to be using the shitter. Using it to film a KZbin video about Galilean invariance is _unorthodox._

[@plum_bit]

I'd be scared if i was on that plane and heard you talking to yourself in there :/

[@itsthesola10]

+Plum Bit I'd ask for an autograph if I recognised Tom's voice while he's filming in there xD

[@Leo1239150]

Plum Bit yeah, like a suicide bomber recording a last statement or something...

[@nmotschidontwannagivemyrea8932]

Can you hear someone talking through those doors?

[@polliv7691]

Especially if they say: "fall away!" at the end.

[@Rhapbus1]

except this is real life and not a movie

[@blueberry1c2]

Tom: "I'm going to have the walls of this plane fall away!" Security: " w h o t "

[@kurtsnyder4752]

End program(me).

[@suunkarra5763]

I love the fact that there are two viewpoints from cameras in this video.

[@aurelia8028]

i wonder where the other camera is... XD

[@starlightpastel279]

why ... its not hard just turn on a second camera and prop it up somewhere

[@amanofculture2991]

@@starlightpastel279 Because why would you bring two cameras to the toilet? Even if you go there with the idea of filming yourself talking about whatever. You would not need to bring a second one.

[@KamikazethecatII]

I feel sorry for the people waiting for the lavatory.

[@Liggliluff]

When I've been on planes; people don't tend to use it that often.

[@sgnosymfoemos]

'Oh-- wait, I messed up again. Take number 8, here we go!' 'Oh for f***s sake'

[@ljr6490]

2 Minutes isn't that long

[@MrMuz99]

@DarkCoreX - Tom wouldn't allow that.

[@hazardeur]

@@Liggliluff it's dirty, loud, confined and you're not secured by a seatbelt. not a good place to be

[@pandakatiefominz]

I know that Tom Scott isn't an actor, but Tom Scott could definitely play The Doctor

[@silverrraven5349]

he's a brilliant linguist, programmer, and writer, nothing is stopping him from being an actor too.

[@Nazuiko]

I would LOVE a Tom Scott Doctor.

[@hazardeur]

@@silverrraven5349 nothing in that list gives him any advantage other than he likes to learn stuff. but becoming a good actor takes years of dedication and that's likely not something he'd want to do

[@deboogs]

If I heard someone filming a video while I was waiting for an airplane bathroom I'd be pissed. =P

[@ole4707]

+Deboogs In what sense? :P

[@doggonemess1]

+Deboogs I was thinking the same thing.

[@WollyChaps]

I'd be even more pissed if he magically made the walls fall away before I got to use the loo.

[@blackoak4978]

+L2112Lifz Lmao!

[@MegaMGstudios]

Deboogs and your experience would be shitty

[@hotelmario510]

The way Tom says "If I was clever, if I was REALLY clever" sounds almost exactly like The Eleventh Doctor. Tom Scott for the Fourteenth Doctor?

[@gonkdroid8279]

That would be awesome

[@PouLS]

The what?

[@briansammond7801]

@@PouLS They are referring to the popular and long-running British TV series Doctor Who. The titular character has been played by numerous actors over the years.

[@CriskDentin]

you almost got me at the last part XD

[@bradirv]

*knocks on door* you alright in there mate?

[@viperhalberd]

No red t-shirt! Muh immersion!!!

[@megasonicgeo]

+viperhalberd Quick, get me some lore friendly mods!

[@richlindquist]

Traveling at 9/10 the speed of light means that it takes longer for the color to come from his obviously red T-shirt.

[@Foebane72]

I wouldn't talk to yourself in the airplane's bathroom, they'll either think you're crazy or a terrorist - or both.

[@thehumungus9066]

"Umm... there's someone in the bathroom rambling to themselves about Einstein, Galileo, and the theory of relativity."

[@AJGoff110]

I thought it was so weird when I opened up Einstein's "Relativity: The Special and General Theory" and at the very start to even begin to understand the Theory of Special Relativity, you needed to already know The Principle of Relativity from Galileo. He was just taking an already established idea and extending into a whole new area people had never considered.

[@sanityisrelative]

+Aj Goff Science!!!!!

[@NoriMori1992]

Standing on the shoulders of giants. :D

[@ROBwithaB]

This video abruptly *stopped downloading at exactly 48 seconds*, and then stayed there. Either someone is playing a very sophisticated prank on me, or my internet just went down...

[@SuchingYan]

your internet went down.....

[@ROBwithaB]

Siqin Yan Yeah, I figured as much, but if you play the video to the 48 second mark and then stop, you'll appreciate the irony of that little coincidence.

[@DuelingPotato]

***** OMG, Lol

[@subh1]

+ROBwithaB Or perhaps the internet started to run at (or very close to) the speed of light and thus it froze in your reference frame (time dilation).

[@ROBwithaB]

subh1 Aaah, yes! That would explain a lot....

I almost expected the walls to come down :D Great video as usual. I'm loving this series.

[@harmony.enforcer]

This was actually a thing I knew. Checkmate Tom.

[@Aypher]

That's why it says might. Checkmate

[@Poppamunz]

Your king cannot evade capture from any of my pieces. Checkmate, literally.

[@y4playiny4self]

I could be rude and ask if you understand the concept.

[@harmony.enforcer]

user6658765876 haha true

[@stevendetton2105]

stefan beubut quick edit it to just check!

[@mattlm64]

Oi mate, I really need a piss. Hurry up in there!

[@neilisbored2177]

No, i'm talking about physics to a camera

[@Somerandomdude-ev2uh]

That if I was clever thing, sorta reminded me of 10th doctor

[@PrisonerZero]

It reminded me of the 11th doctor!

[@MeNowDealWIthIt]

Reminded me of the 9th doctor

[@naota3k]

I was reminded of the 2th Dr.

[@brunocad]

Tom Scott for the 13th doctor

[@naota3k]

Tom Scott for 7nd Dct.r

[@NoriMori1992]

I really hope there wasn't a long line-up for the bathroom while you were in there. XD

[@Drigger95]

You are SUCH a clown Tom LOVE this series and loving your presentation lol. I 100% expected the walls to come down.

[@SeanNH94]

Rare footage of Tom in a non-red shirt :o

[@Naruedyoh]

Hope this was just one take, or people in the flight would be very upset

[@FeepingCreature]

"If I was clever, if I was REALLY clever..." For a moment there, I thought you were channeling the Doctor. (British accents all sound alike to me, I guess...)

[@VechtMalthos]

My thoughts exactly.

[@smishdws]

I do a little pendulum experiment with my earphones and I stand in the bathroom for a while playing around and blowing my own mind about relativity on every flight I take. Yes, I'm legitimately crazy like that.

[@3snoW_]

Galileo's concept of relativity is different than Einstein's. To Galileo, light would move at different speeds to different referentials, like everything else does. I thought you were going to talk about Lorentz, who deduced all of the relativist equations before Einstein, without claiming that reality worked that way, much like Copernicus before Galileo described how the earth would move around the sun if the universe was heliocentric (which he didn't claim was the case) .

[@TheSlimyDog]

I'm not too sure but I think that Galileo didn't know that speed of light was constant in all inertial frames of reference (that's what Einstein said). He just stated the first postulate of Special Relativity that states that all inertial (non-accelerated constant velocity) frames of reference are the same. So the speed of light didn't come into picture until Einstein (or at least a few centuries later).

[@SchumiUCD]

A finite speed of light wasn't measured until after Galileo's death AFAIK.

[@micahphilson]

I love this older format of a super-short style fun-fact with a minor bonus fact shortly after!

[@Bloodmuffin6]

Whenever I feel myself getting impatient on a flight, I try to remember what it would have been like traveling the same distance before airplanes. Then I try to fall asleep cause, seriously, flights are pretty boring.

[@VechtMalthos]

Seriously, you would be a great Doctor. They should be knocking down your door to hire you for the part.

[@MrLondonGo]

Love the ending on this one! Such a class act.

[@desaturated-firefox]

His monologue was so interesting that even the toilet got its phone out and recorded it.

[@jacquesdupontd]

Recently, you were asking if we were liking the different subject "Things you might not know" was covering and the roads it was taking. From my point of view, a French guy, liking a lot your videos (I started with "Welcome to life"), i really like the idea that i can't guess what you are going to talk about. The title says it all, i want it to be as random as it possible/is. Obviously that would be boring if you were releasing a Video every Month, but as it's more often, you can mix every kind of topics, at least, that's what i think. And that, is something you might have Known already but i wanted to tell it to you. Thanks for you fantastic Job that can't even be described, multitasking is a 21 st Century word for sure.

[@Wemdiculous]

I thought he would turn off the background noise.

[@patrickcorby1423]

Ikr, surely he could have just asked the pilots to turn the engines off for a few minutes!!

[@andrewnavarrette4807]

I'm going to watch this video turned up really loud while in the restroom on my next flight. Just for the immersion.

[@tomm.ymacleod9347]

Aaahhhhh ThE JaW cLenCh at 1:50 😱😍

[@kuro4841]

people in front of the door:"I wonder what hes eating, that sounds awful in there, but very educational"

[@zalinthor]

You should remake this video with the walls actually falling over at the end!

[@williamjones7163]

For just a second I was expecting the walls to fall away. Then realizing that I had been had and laughed at myself.

[@pdgameplay2955]

Tom should remake this video and have the walls fall away

[@CptKenny]

i love the doctor who style rant.

[@ailaG]

Which makes me wonder, just how soundproof is an airplane lavatory? I imagine it's soundproof enough to keep the nasty sounds away, what about speech?

[@phuoctran7651]

Me: I need to have a bathroom break! I have been waiting for half an hour Guy in the toilet:

[@magnushmann]

Oh. It was you in there. I wondered why it it took you so long, and what i was hearing while i waited. strange.

[@dyyd0]

Love the allusion to Doctor Who. (Y)

[@Emilytea]

I knew my fandom senses were tingling.

[@lohphat]

Between SFO and LHR I fly AirAmbien. a 9.75 hour flight becomes a 2 hour flight.

[@davecross4408]

They should never have retired Concord, youd have been there by now!

[@TheGoodWario]

Sorry Tom, you are no Thanos.

[@yoingjoe]

I can understand all the people in the comments moaning about long flights, but I just took the Coast Starlight train from LA to Seattle, so I feel no sympathy whatsoever!

[@rockrollinnolan8521]

I love the 777. Probably my favorite civil aircraft of all time.

[@paramortalics]

You look like Benedict Cumberbatch stumbling into a conspiracy and wondering if he's high at that moment (pun intended).

[@LadyAnuB]

The nice jet background noise is the clue for me that the walls won't be coming down.

[@hasen1957]

LadyAnuB That's not really hard to fake .. -_-

[@tangerinealarm]

Did anyone outside the bathroom wonder what you were doing talking to yourself in the bathroom?

[@JimFortune]

In an airplane traveling at a constant height above the earth there should be more or less gravity than when you are standing still. Perhaps difficult to measure, but there would be a difference. Centrifugal force.

[@Somerandomdude-ev2uh]

While true, i think the difference would cancel out, since every single thing would change the same

[@TakeoFR]

Yes, you are right. In fact there are experiments you can do to give you the exact speed you are flying around the earth (if you have instruments precise enough). Quote from Wikipedia ( en.wikipedia.org/wiki/Micro-g_environment ): -- "Floating" objects in a spacecraft in LEO are actually in independent orbits around the Earth. If two objects are placed side-by-side (relative to their direction of motion) they will be orbiting the Earth in different orbital planes. Since all orbital planes pass through the center of the earth, any two orbital planes intersect along a line. Therefore two objects placed side-by-side (at any distance apart) will come together after one quarter of a revolution. --

[@JimFortune]

TakeoFR I wonder how much that affects the design of orbiting structures.

[@ROBwithaB]

Jim Fortune But that *assumes* that you are flying in a *straight line*. You have no way of knowing if the pilots are following a slightly elliptical (in the vertical plane) flight path, or any other trajectory, for that matter. The resulting addition or subtraction of g would then give you a false reading, and you wouldn't know whether to ascribe it to the speed or the flight path. Because you have no frame of reference. So you're back where you started.

[@JimFortune]

***** The question is, can you tell if you are moving. If you were over or under one G, you were moving. If you were climbing or descending to compensate for the centrifugal force, you'd know pretty soon when you hit your altitude ceiling, or the ground. Just if you hit the ground, you wouldn't know it for very long.

[@ThreadBomb]

Flight attendant: Sir, are you alright in there?

[@Ved_Overclocked]

Yea hope it wasn't too many people back their.

[@noodlesthe1st]

First thing I actually knew of all these videos

[@BS-vx8dg]

Great ending!

[@bobderps8600]

Bioshock made be afraid of flying over the mid-atlantic.

[@RidgyORidgy]

Was expecting Poincarré, was kind of disappointed.

[@sidkemp4672]

And think of all those movies where the airplane bathrooms were sitting on a Hollywood movie set!

[@Any_Investigator_666]

Rare footage of tom not in red t shirt

[@WhiteXCr0w]

Learnt this in physics about a month ago!

[@maxresdefault_]

None of these comments are about what he's talking about

[@TheSam1902]

0:48 : there is an experiment you can do to know if you are going faster than 'c', simply look in a mirror. If light can travel from you to mirror it mean that you arn't going faster than light. If you was, relatively an external observer, light would be going at 2 times the light speed, 2 x 299,792,458 (if you are in void at least, if you arn't, it would be quite similar). So it mean that c = 2c and that light break the lightspeed limit. So at least you know that you are going slower than speed of light.

[@NoriMori1992]

You can't go faster than c, so your experiment is irrelevant.

[@TheSam1902]

Yeah I know, but "What if ?"

[@freshrockpapa-e7799]

You are wrong. Velocities don't simply add, your experiment breaks almost everything that physics has discovered after galileo.

[@cortster12]

There is no 'what if' in this context.

[@NoriMori1992]

***** There is no "what if" when you're talking about something that's physically impossible (unless you're writing science fiction), because you can't coherently analyze such a thing in terms of the laws of physics.

[@xpericfilms]

Were you referencing something when you said "If I was clever, if I was really clever"?

[@halogenlampert]

imagina being in a flight that is going to take 5 more hours, you need to take a leak urgently and hear a dude mumbling on the toilet

[@YellowToomNook]

You aren't wearing a red T-shirt in this one

[@finn7948]

Ah I’ve gone colour blind! Why’s toms shirt white!?!?

[@InvadersDie]

I believe this is only true if you are at a constant velocity.

[@panko2848]

+InvadersDie no, you would then only be able to calculate how fast you are accelerating, and since you would not know your initial velocity you would still have no way of knowing how fast you are going.

[@marcpatzelt2430]

I imagine the row of people waiting to enter the bathroom and they hear some wierdo inside talking about relativity

[@renardmigrant]

I actually did know this one.

[@TheBlackIPs]

Well Casey, Tom did it first!

[@718Gilbert]

GPS speedometer. Boom just proved you wrong

[@718Gilbert]

+718Gilbert ...sort of

[@ole4707]

+718Gilbert Then you're moving relative to the satellite which has a part in measuring your speed. The thing is, if you try to measure the plane's speed from within the plane itself, with no way of telling what's outside, you will not be able to.

[@drabberfrog]

No red shirt? Are we sure this is even Tom Scott and not an imposter?

[@punklibrarian3]

The phone being used to record has accelerometers, meaning you can know the speed you are traveling, right?...

[@SirCutRy]

Those are meant for measuring acceleration, but you could use GPS.

[@SirCutRy]

Yes, the plane is going at a constant speed so that is why he could not know the speed, wasn't that your statement?

[@SirCutRy]

Louis Hong My bad, sorry

[@magicstix0r]

You can make a very guess at your speed if you measure the acceleration before you're in steady state. This is how inertial navigation works. The point of relativity is that you can't prove that you're moving once you're in a steady state.

[@freshrockpapa-e7799]

That isnt what relativity is. Did you even watch the video?

[@ChrisHockman]

Long haul flight in economy. With five hours left? There’s probably a spare bathroom free

[@Fangoddess]

SHERLOCK QUOTE

[@minxythemerciless]

All of Einstein's special relativity was a direct copy of Lorenz with minor rewording and minor mathematical changes. A publicity coup-detat

[@gregslav6608]

Just think about the massive line outside of the toilet doors

[@factsverse9957]

Are you finished in there? I really can't take it anymore.

[@freggo6604]

That's NOT how you become a member of the mile high club :-)

[@canned_doughnuts_5222]

now i know who was using the bog for half an hour :) i completely embarrassed my self on that plane in front of everyone else :)

[@hillsinhighplaces]

1:50

[@notthere83]

I can't help but wonder whether after leaving the bathroom, you announced "It's OK, I'm not crazy, I was just recording a video! ... For KZbin! ... Um ... just talking about Einstein and relativity! Um... because you know, [...]." Or maybe you realized what explaining this would entail and just decided "Screw it, let them stare." ;)

[@johnburn8031]

Someone needs to explain this to William Lane Craig!

[@KeetMWorth]

yeah bro, we all watched that family guy episode

[@jamesburton1050]

You are funny clever!!!

[@geraintwhite]

Why are you using US English words such as "airplane"?

[@swaggington]

Sorry, what word do you use for airplane?

[@JimCullen]

MrMinecart the British term is aeroplane.

[@vessiecakes]

I think it's pretty much just a spelling thing, the difference in pronounciation is miniscule

[@JimCullen]

Vanessa K, no, the pronunciation is different, too. Aeroplane has an "o" in it, as in "air-o-plain", while airplane typically doesn't "air-plain". That said, many people would spell it one way, while pronouncing it the other. I used to spell it the American way while pronouncing it the British, although more recently I've decided I prefer the British spelling too.

[@DeadpoolCore]

MERICA

[@scootergrant8683]

Who else has just come from the Instagram post about what you see with parcel tracking?

[@maxgoesracing]

You were probably going 560 mph

[@freshrockpapa-e7799]

It depends on your reference though.

[@769270865]

to be more exactly,some where around 450knots or 0.8something mach

[@SiiKiiN]

What if you shined a laser and measured the time it took to go from one spot to another. Since light travels at a maximum rate of you were moving fast it wouldn't across the room as fast so therefore you can tell how fast you are going

[@mayagerard0]

+sík-ɪn lesson Light moves at the same speed relative to any frame of reference. That's kinda the point of the video

[@claframboise]

+sík-ɪn lesson light always looks like its going the speed of light faster than you are going. when you speed up the universe actually get squished or stretched from your point of view and moving things that produce light get redder if they are moving away and bluer if they are coming towards you; but light always looks like its going 3x10^8 m/s faster than you.

[@subh1]

That's why it is called "special relativity".

[@drewmandan]

+subh1 No, it's not. It's special because it's a special case of Einstein's general relativity.

[@drewmandan]

subh1 This is common knowledge. It's right on the wiki page: The theory is "special" in that it only applies in the special case where the curvature of spacetime due to gravity is negligible.[5][6]

[@intoxicary]

You're awesome.

[@kevikaterski]

There are two cameras. Did he put the second one in the toilet?

[@inandoutland434]

It was a mirror....

[@vzwGrey]

InAndOutLand IAOL No,it wasn't a mirror,why to there be are mirror so deep near the floor?

[@rossb654]

It was literally just another camera. :p

[@cyrils.1194]

And Henri Poincaré ?

[@flow5718]

Yeah.. something's off.. where's the red tees?

[@flow5718]

maybe this is an alternate reality tom

[@positronwildhawk8690]

Tom, what happened to your hair? It used to be brown.

[@baitcommajail]

If you're still visiting the mouse in a week, I'd love you buy you a beer or other beverage of your choosing… I suspect though that you'll be home by then.

[@buffypython]

But if you can't measure things like the speed of light or the speed you're traveling when you're on a plane because there's no privileged frame of reference, wouldn't that mean we can't measure anything at all? If I measure how fast the Earth is spinning around the Sun, wouldn't that be inaccurate because I'm on the Earth? And even if I were in a ship traveling away from the Earth, I couldn't measure the speed of the Earth's rotation around the Sun because I'd be traveling away from Earth, which would constantly throw off my measurements?

[@MrHat.]

We can measure the speed of light, because it is a constant. And the way we do it is rather clever

[@dark14836]

QI stephen fry fact

[@janhetjoch]

I tought you where going to talk about lorenz

[@poiuytrewqqwertyufy]

was there a dr who quote in there???