Weightless Water - Experiments In 'Zero Gravity'

Подписаться 1,5 млн

Просмотров 80 тыс.

50% 1

Why does water behave in such weird ways in microgravity? We went on a parabolic 'vomit comet' flight to investigate.
Check out the interactive 360 footage from this flight: • 'Zero Gravity' in 360 ...
Day 16 of our advent calendar: rigb.org/advent
Microgravity is a key characteristic of life aboard the ISS. And in a weightless world things behave very differently.
Christmas Lecturer Kevin Fong got a taste of this unearthly sensation on board a parabolic flight, which simulates microgravity by flying in steep peaks and troughs. While on board, he did a few simple experiments, investigating the properties of water in a weightless environment. Christmas Lectures Assistant Jon Farrow explains what's going on.
‘A Place Called Space’ is the 2015 Royal Institution advent calendar. Every day in the run up to Christmas we'll be releasing an original piece of content exploring the human experience and cultural significance of space travel. With hand-drawn animations, experiments in zero gravity, interviews with astronauts and creative data visualisations, the calendar will fire you into space every morning.
'A Place Called Space' channels the voices of seasoned astronauts and expert scientists through the eyes of a team of talented animators, film-makers and artists, bringing you a thought-provoking gem to kick-start each day.
Check it out at rigb.org/advent
With special thanks to our lead supporter, Wellcome Trust www.wellcome.ac.uk/
Subscribe for regular science videos: bit.ly/RiSubscRibe
The Ri is on Twitter: / ri_science
and Facebook: / royalinstitution
and Tumblr: / ri-science
Our editorial policy: www.rigb.org/home/editorial-po...
Subscribe for the latest science videos: bit.ly/RiNewsletter

Наука

Опубликовано:

31 июл 2024

Ссылка:

Скачать:

Готовим ссылку...

Добавить в:

Мой плейлист

Посмотреть позже

Комментарии : 77

@nin6246 7 лет назад

Thanks so much for the upload - this video is incredibly useful!

@wowzerxx526 7 лет назад

Great Job =D

@criskity 5 лет назад

Take that, flat earthers! Buoyancy is dependent on gravity.

@max5250 4 года назад

@Jason Schnereger Simply, formula for buoyancy includes lowercase letter 'g' (gravitational acceleration), so it depends on gravity, while flat earths are trying to claim that things fall down to earth due to density (which is not force but property of mass), and buoyancy (that is defined using gravity). Not to mention that we do have formulas describing accurately trajectory of objects thrown in the air, without accounting for density or buoyancy of these objects (or even their mass), but rely only on the speed of an object, and angle in relation to flat surface, and 'g' (gravity acceleration).

@max5250 4 года назад

@Jason Schnereger I don't know with whom you agree, I just answered your question. You asked how does that affects flat earthers, and I told you how. There could surely be force called gravity even on fantasy flatlandia, but it would be rather difficult to explain it with alleged flat surface, and, easily observable fact that, every single celestial object around us being spherically shaped, wouldn't help much either.

@max5250 4 года назад

@Jason Schnereger Of course 'round thing in the sky' are not enough, but it is good indication that 'flat' is not preferred shape in the Universe, but sphere is. As I already mentioned, there could surely be some force in fantasy flatlandia, making objects to fall down, but majority of flattards are claiming that: there is no gravity, it is not a force but density and buoyancy, etc.

@JMacify 4 года назад

@Jason Schnereger When the earth formed, it was a molten mass in space (no gravity) this means it took the same or similar shape as the water in the video. Water never takes the shape of a disc in zero gravity, it always ends in the form of a sphere. This alone should be enough to discourage flat earthers let alone all the other science that points to the earth being a sphere.

@JMacify 4 года назад

@Jason Schnereger You are not upsetting me in the least. You can either believe the earth formed in one day from a solid or that it formed as a molten liquid. Since this happened almost 5 billion years ago, there is no way to prove it with solid evidence. You dont have to believe any model to see that both the moon and sun are round and if you use a telescope you can sometimes see Venus and Mars that are also round. This leads us to believe that either A. All other heavenly bodies are discs and are positioned perfectly so we can only see their flat side or B. All other heavenly bodies are round so maybe the earth is round too

@kareemgheriani1555 Год назад

Thanks a lot ❤😊

@locouk 8 лет назад

I'd like to have seen in slow motion the table tennis balls being enveloped in the water.

@Ironhatchy 8 лет назад

Does the ball sink or does the water absorb the balls. If the balls were to be put in a stable experiment where the balls and water did not move until they were exposed to the micro gravity, would the water move to the balls or the balls move to the water? Furthermore, which would move to what.

@maartenh94 8 лет назад

Lower the video quality if you're video stops playing after a while!

@awatt 5 лет назад

Bendy water clinging to a ball....flat Earth argument destroyed.

@awatt 4 года назад

@Jason Schnereger Prove the Earth is flat. Go on I dare you. Show me a nap that has all points of the globe at their correct distance. No map = Earth is a globe. GO.

@awatt 4 года назад

@Jason Schnereger Still waiting.....

@awatt 4 года назад

@Jason Schnereger Still waiting......

@awatt 4 года назад

@Jason Schnereger Thank you for supporting the globe.

@awatt 4 года назад

@Jason Schnereger Still no map? Globe wins...again.

@libeks 8 лет назад

Ditto, video only works until 1:57 or so

@TheRoyalInstitution 8 лет назад

+Jānis Lībeks Gah! What computer/browser are you using? It's working OK for us here so can't figure out what's going on :(

@blenderpanzi 8 лет назад

+The Royal Institution Dies for me there too. I use the newest Chrome (just updated) on a 64bit Linux.

@osterberg87 8 лет назад

Next time, mercury metal at zero g?

@OzDeaDMeaT 8 лет назад

anyone else not able to watch the entire video. It stops playing at 2:00 for me.

@algladyou 6 лет назад

Oz DeaDMeaT mine works

@American-Plague 5 лет назад

Obviously because you are a disinfo agent paid by NASA and the United States' government with that Australia emblem. You know...because it's fake. /s

@STOG01 8 лет назад

Chrome here too. Error at 1:57

@ElliottRodgers 4 года назад

Does this apply to large amounts of water like the swimming pool water "blob" that traps Jennifer Lawrence's character Aurora?

@max5250 4 года назад

Yes it does, although that scene in the movie is not entirely correct. If there was artificial gravity, turning it off, would not cause things to float or to move away from the surface as depicted in the movie. Also, if the rocket is not orbiting around the planet, but moving in interstellar space, objects would not "float", since they would not be in a free fall state.

@adamfirst3772 4 года назад

no, it wouldnt... 1:30, 2:45 it only forms droplets, in small amounts.. does that water in the jar look like a sphere??

@dugoutdave4450 3 года назад

Like a Gel substance alright.

@marcusduck 8 лет назад

1:13 What the hell man. Why the hell is the Asian guy using a pair of chopsticks and trying to pick the water droplets and eat them? That cannot get any more stereotypical than what he did -.-

@terrencew6504 8 лет назад

+marcusduck Yeah it can. It was green tea, not water.

@kschantz 5 лет назад

People need to realize that this is not micro-gravity. This is free falling, or skydiving inside an airplane. Yes, they are floating relative to the aircraft, but the experiments are not subject to zero-G, they are subject to free falling and never reaching terminal velocity.

@fromnorway643 5 лет назад

The ISS is also free falling, thus the "weightlessness" there and aboard this plane is basically the same thing. If the ISS was stationary relative to the Earth, the gravity there would be nearly 90% of that at sea level.

@kschantz 5 лет назад

@@fromnorway643 True, both are free falling, however, the ISS is free falling but maintaining a sideways velocity to keep it in a continuous fall that matches the curve of the Earth. The main difference is that the ISS is in a much more controlled and stable free fall which pretty much maintains the same gravitational force, where as the Vomit Comet spends a little over a minute in each parabola and really only maintains about 21 - 25 seconds of the "Zero-G" effect. I have been lucky enough to experience the Zero-G effect during combat training. After overcoming the nausea, the feeling of weightlessness starts out as a feeling of helplessness, and I can see how it would take time to learn how to maneuver in it. Pushing off from something does not have the expected result. For example, pushing off from the wall with my hand at shoulder height sent me into a backflip. The people riding the vomit comet in the videos are just having fun and horsing around. Real training requires you to overcome the weightlessness and perform specific activities. I do believe that the female astronauts are "teasing" their hair and spraying it, and I think they are doing it as directed by NASA for the sake of the sessions where children are interviewing them. The same goes for the use of Virtual Reality.

@American-Plague 5 лет назад

@@kschantz I don't understand what point you are trying to make.

@globestrikeback1888 5 лет назад

what they experience is the exact same things as the ISS for example, ISS is also free falling -_- Sure the vomit comet is less stable and cannot last very long.... but physically, they are the same things.

@brazy8689 6 лет назад

wow just like iss footage oh wait

@giannipiccioni8411 6 лет назад

Yeah, you know, both are in microgravity

@gonzomuse 5 лет назад

Except it's only in zero-G 30 seconds at a time, while we have footage from the ISS of over an hour.

@RRW359 5 лет назад

Because it's basically the same. The difference is that the ISS able to be in freefall *forever while planes can only do it for a few seconds. *Not accounting for the small amount of drag that occasionally needs to be compensated for.

@JustOneAsbesto 8 лет назад

Such mugging.

@StephenMortimer 8 лет назад

weightless??

@gonzomuse 5 лет назад

Without gravity mass has no "weight". Ergo weightless.

@AWZool 5 лет назад

@@gonzomuse True and wrong. Weight is the force an object exert on a support or suspension. No support -> no weight. Gravity remains in place in this case.

@gonzomuse 5 лет назад

@@AWZool "True and wrong"? What does that mean? If you removed the gravity then the object would have no weight? It would be "without weight - weightless".....? objects in freefall could be considered weightless. It's not the sole definition though is it.

@AWZool 5 лет назад

@@gonzomuse It means that what you said is correct, but on the plane and ISS it's not the case. The plane and the ISS is freefalling, hence weightlessness. There IS gravity, that's why they're free_FALL_ing. If you could remove gravity (idk, get out of the galaxy's SoI), then there would be no weight and no falling either.

@gonzomuse 5 лет назад

@@AWZool right

@flatstuff1630 5 лет назад

Worst experiment ever. The water was sloshing around everywhere. Of course the ball would too. This can't be seriously meant to demonstrate anything. Is there some reason they didn't fill the jar to the top? Then you could flip the jar during freefall and see if the ball goes up

@MarcosLucas 4 года назад

The ping pong ball doesn't float because is filled with air, its float because the density is lower than the water,

@operationmindfuck7145 5 лет назад

Planets must have formed as lava balls in space or they wouldn't be spherical. Accretion would form discs.

@cxsbah712 5 лет назад

actually i think the reason the planets are circular is because of gravity! im pretty sure that because the planets had so much mass, they had more gravity, and thus pulled themselves into a sphere.

@chaseroneeightseven 6 лет назад

i want to see water in vacuum then in zero g

@TheObsidianX 6 лет назад

Chaser .OneTV water boils in a vacuum

@American-Plague 5 лет назад

TheObsidianX is correct. Plenty of video of this.

@IIBLANKII 4 года назад

Why would objects fall because of buoyancy in a vacuum when they have no medium to fall in? Why would objects that are non magnetic fall as fast as objects that are magnetic if it was because of the electromagnetic field? Seriously we are able to show you a ball conform onto a ball with simulated free fall to counteract gravity. You guys don’t even have a working theory that can’t be stoped with basic observations.

@glenn_gallaher 4 года назад

First off, not space. Next free fall.

@kareemgheriani1555 Год назад

Does water floats with 0 gravity?? Does water create its gravity by itself?? Isn't it one of the first stage of the big bang ??

@nashfenol8144 4 года назад

parabollic flight = zero gravity🐒🐒🐒

@eduardosanchez5784 4 года назад

Relative density not gravy tea

@IIBLANKII 4 года назад

Buoyancy requires gravity. “Fb = Vs × D × g, where Fb is the buoyancy force that is acting on the object, Vs is the submerged volume of the object, D is the density of the fluid the object is submerged in, and g is the force of gravity.”~definition. You can’t calculate buoyancy without gravity, if you can please collect your Nobel Prize.