Space Station Reboost

[lokostj]

w0w



[ApolloWasReal]

Why was this burn done before a shuttle or Progress arrived? That increased the delta-V required of them. I'd expect boosts to be done after a shuttle or Progress departs. Was this some sort of phasing burn done just to change the time or location of rendezous?

[LOPEZdJUNGLIST]

krasiva spaciba ; )

[OddEyesCG]

i wished i could see 3:49 in 3D

[OnionPaladin]

All those glorious Thinkpads.

[LeviStar21]

@OnionPaladin I cannot give you enough thumbs up.

[AtheistKharm]

Man those laptops are old. 

[ThisIsAGreatName]

@AtheistKharm Thinkpads aren't old.

Thinkpads are still made with brand new hardware. The body shell looks "old", because it's rugged as fuck.

[AtheistKharm]

@ThisIsAGreatName good point. I was unaware they were still making the thinkpads with the same body design they have been doing for 10 years.

[dezeya2k7]

@AtheistKharm IBM/Lenovo Thinkpads, still developed now with modern hardware, one of the best types of laptop money can buy.

[krogan92]

@AtheistKharm Were you expecting Macs? If that were the case, the ISS would have crash landed on Earth by now.

[AtheistKharm]

@krogan92 no, macs would be worse.

[sarcasm2k]

Cool demonstration :)

[nucleochemist]

Sharpies in space: Return of the Sharpie!

[pyrofiliac]

Holy shit, where do i get a lens like that?

[randallhall991]

So many laptops...

[brion1800]

thanks so much for making this video. awesomely interesting.

[DramaBeatslol]

I wanna fap in space.

[clmariomax]

Awesome video, thanks for sharing!

[BOBSTER00001]

COOlest thing i seen today!

[hardstyle905]

Excellent demonstration. These are the kinds of videos I like the most. It's so interesting to see physics at work in a real experiment, rather than just calculating. 

[Mtn86]

how much does a camera like that cost?

[ryanbirch]

Super cool video!! Thanks for that Mr. Williams and NASA (and whoever else may have been involved)!

[bscheong68]

NASA與Nikon共同譜出的偉大畫面

[huyked]

That was really cool. What a way to illustrate something.

[jmendeck]

That was awesome, Jeff. This FDO loved it.

[krogen42hull198]

Amazing...

[HalQuiramTV]

can i have that lens haha

[Enatbyte]

If only they had inertial dampeners.

[cjwtech]

We are in the future. Can't wait til we all can go up there without even thinking about it.

[cjwtech]

i want to be an astronaut!!!!!! 

[hugodmg]

4:55 BJ

[m1up]

Dude, I am so subscribing to this! LOL!

[TechnoTechnoBurger]

I think that nikon floating in mid air has got to be one of the coolest things I've ever seen on the internet

who needs a tripod when you have zero gravity?

[granddad2002]

I had this humorous picture in my head. Like in 'Spaceballs' when they go to 'Ludicrous speed'. Everything lurching forward and then back.

[Thesterness]

The burn was much quieter than I expected. On the shuttle I've heard that it's really really loud whenever they fire the RCS or OMS.

[NickNoRtHeRnLiGhTs]

i think the fact that we have a well operating manned space station is pretty amazing and we need to realize how fucking COOL it is!

[andrethijssen]

The Nikon D2x camera, no matter what lens attached, is far too heavy here on earth.

Nikon please work on that!

[kmizunophotography]

NKON! I WANT THAT LENS

[LilHACKERR]

This is so cool, OMG. It just makes me think if I were this guy....., but you have better changes winning the lottery then to go in space.

[qed100]

@LilHACKERR

The Lottery is random. But astronauts aren't picked at random; they're hired because they proved themselves in school and other domains. If you work hard, your chances of space travel can be a lot greater than the odds of winning the Lottery.

[flynnmail]

Nice camera. And they're IN SPACE. Pretty cool.

[markova]

Nikon. Yay!

[GLeNss]

Micro Gravity is so cool, I just appreciated it when I saw him rotate that camera like it was a twirlystick.

I guess the camera is not "moving" but the spaceship and everything in contact with is.

[valken666]

The camera is moving, it is just not accelerating.

[GLeNss]

I thought it was the spaceship that is moving around the camera and because the video camera is on a tripod connected to the spaceship the camera looks like it is accelerating. MIND BLOW xD

[maksphoto78]

Is it accelerating. The boost provides acceleration to the ISS, so the camera is accelerating in the opposite direction.

[valken666]

So an object that is directly outside of the space station is accelerating when the ISS is accelerating?

It does not undergo any of the relativistic effects, it is not accelerating in relation to the universe. Therefore it is only moving at its current speed.

[roborovskihamsters]

Haha, Sharpies on left wall at 4:32 :D

[mazzamoush]

@roborovskihamsters haha yeah :D

[AchingOvaries]

This video was absolutely awesome. Weightlessness must be nice when using 800mm camera lenses. ;)

[maksphoto78]

That's cool, I didn't know they experienced it to such extent.

[siara1705]

I wonder how a 2 liter bottle filed with 300ml of water would look like in space and when shaken bottle how would water behave in a bottle?

[qed100]

@siara1705

Since the bottle would have some empty air in it, shaking would make the water turbulent and air bubbles would get trapped inside the glob of water. Once settled the trapped bubbles wouldn't be buoyant (zero-g), so they'd just stay put.

The glob itself would tend to cohere into as spherical a shape as possible due to surface tension. With only 700ml of space left, there's some likelihood for the glob to stray over to the bottle's inner surface and adhere to it.

[qed100]

@siara1705

...Spinning the bottle would be interesting. The water would fall to the outer perimeter and the bubbles would become buoyant, rising toward the middle. There are Space Station videos on YouTube of this sort of thing. Search for Saturday Morning Science with Don Pettit.

[siara1705]

awesome video

[guate6]

I am curious, what is the lens on the other camera in the background? a 600mm prime with an extension tube?

[Blingchachink]

he sort of sounds like Norm McDonald. and this is an awesome video 5/5

[prolayterryat]

It's actually a 400 mm AF-I F2.8 with a 2x converter making its efl 800 mm

[skeeterou]

That's a badass lens. Any links to some images taken with that bad boy?

[Pommbaer84]

Makes be proud of beeing a Thinkpad-User too. Best Notebook in and out of the World

[rankor77]

@AirForceElite

Where are the pictures ? Nikon would rather invest in research and development instead of marketing operations in disguised sponsorship.

[KaczorowskiArtur]

I thought, the guy was a clone at the end.

[AirForceElite]

oh and forgot to add:

It's things like this that I don't regret paying so much taxes. This is just awesome. In 1995, who could have thought some random people from all over the world could comment on a video from ISS showing cool stuff? <3 internet

[AirForceElite]

makes me proud owner of Nikon system!

Go Nikon! lol

[Foxx1981]

@AirForceElite why? How can a product anyone can buy make you proud? I'll never understand brand fan-boys

[Tjita1]

@AirForceElite Makes me glad I own a Canon system, so I don't have to worry about it drifting away from me. ;)

[iBuckFutt]

@AirForceElite lol nikons are for poor people

[Ferrariman601]

Really cool stuff. I always wondered if something like this would happen when any acceleration was applied to a spacecraft.

[qed100]

@Ferrariman601

It's just like peeling out in a hot car, and getting pressed into your seat.

[Cketzalcoatl]

Oh God, so amazing!

[CamiloSanchez1979]

Jeff Williams is the shit!

[GabrielTeykal]

Absolutely AWESOME!! This is AMAZING!!!

[qed100]

Just for comparison, that's the gravitational acceleration at a distance from Earth of about 87,000 miles above sea-level.

In other words, if you were standing atop a tower (anchored at either the North or South pole, to avoid centrifugal effects) at that height and dropped your camera, that's how it would fall toward the floor.

[Craigthepope]

So creepy...

[iVolkswagen]

Thank you for these videos. They are very enjoyable. Please continue posting, when you get the chance.

[sorry8140]

1. u look like ur havin fun.

2. tough science. accelerating that much (.00185ms(squared)) because of a few ATOMS is just amazing.

3. u make me feel like im a part of the ISS.

4. i have a question. are you working around the clock, or 6-8 hours a day? do you get some days (periods of time in your case, since you've lost track of the date) off? what type of work do you do? in a nut shell, what do you do up there and what is your work schedule?

[isokessu]

RofL I guess whan pc had windows live messenger running :D pretty funny if somebody is asking "where are you know" and somebody anserws "well i'm outside earth just flying towards it" but hey wtf just happened here :O why does he and the camera moves faster than the spacestation?? How is it possible?

[tinkerjeep]

@isokessu - Inertia, to answer your question. The same thing happens when you are driving in a car and stop or turn suddenly. Your body mass wants to retain its original direction and velocity, but the vehicle you are belted to changes its direction and velocity...each of these are in opposition to the other, according to Newton's Laws.

Because he is coming towards the camera (that is filming him), it appears the station's acceleration is opposite his own direction of movement and velocity.

[isokessu]

Why spacestation(s) are white or grey? Why they just aren't black so that sun would warm them.. I don't think that black paint sucks radiation itself ..radioation is invisible after all O_O

[YDDES]

isokessu

If the spacestation was black it would be

overheated in the sunlight.

Also, the astronaut and the camera is NOT moving FASTER than the station, they are lacking behind, due to the stations acceleration.

[camerafunkhole]

That's technically not an 800mm lens. It's a D2X and a Nikon 400 2.8 AF-I mounted to a 2x teleconverter. Behind him is a D2X and a Sigma 300-800 f/5.6 HSM lens.

[kameraguy]

awesome camera setups they have up there!

[TheTurbinator]

I wonder what would have happened if you let the camera float, and then the engines cut off. Would you visibly see the camera slow down?

[jayfromla]

The camera would continue to drift slowly because the space station is now moving at a slightly higher velocity than the camera. If the space station were long enough, the shear forces between the air molecules and the camera would eventually transfer enough momentum to the camera that it would accelerate to the same speed as the space station. But since the space station isn't long enough, the camera would just hit the wall before that could happen.

[modelun12]

do you slow down if you are not restrained to your car when it stops violently? No, you don't stop, you keep going until you hit something (wheel if you're not restrained).

[KilLz0N32]

lol i wunder if they have any little space ship toys so they can have space ship wars :P pew pew pew

[TheTurbinator]

@KilLz0N32

I don't know about spaceship toys, but they sure have little green men on the station. Hopefully they post a video of one of them. It's very cool that they brought that up there :)

Post a video of then *HINT*HINT*

[coppurt]

@KilLz0N32

lmao you're way to funny dude

[alonsodocYT]

Not so clever i am.

But that means that the boost is in the opposite direction of that of things like the camera?

How can one figure out in what direction is the boost (by only seeing this video)?

[guitarristaspyos]

Correct, the acceleration of the camera is opposite to the acceleration of the ISS. Example, when a car accelerates fordward you go backward. Action=Reaction

[modelun12]

The boost force direction is opposite the camera moving direction.

[mrebyers]

Well done, sir.

[don312000]

That's just freakin awesome!!!

[BYMYSYD]

lol great demonstration of physics here. I'm so glad to be part of this generation, to see other people's works on spacelabs like this.

[captainpiccard]

This is awesome... I thought it would be more violent though...

[waterdamnaged]

awesome

[kdwormy]

Cool!!!

[topazeyedMTlion]

Most excellent! But (and I don't mean to be a nudge) maybe next time you have this opportunity, could you video from a right angle to the direction of the acceleration? Then a viewer might be able to measure the acceleration. All s/he would need is a scale marked in the background (or the linear size of the demo object) and the time count from the video. Bring science home!!!

[554466551]

Loved the demonstration. Thanks!

[gold375]

cool vid Thanks.

[mprovost58]

Thanks Jeff! That was a great demonstration!

[mynameischad]

Cool, they use IBM ThinkPads :)

[lucidcafe]

That was great Jeff. The more of these details you show the better. Thanks!

[vaasnaad]

It's the little things that are so cool!  What OS were those laptops running, I wonder.

[supermonkee48]

Most are running a somewhat customized Windows load, and the specifics can vary depending upon how a given laptop will be used.

[modelun12]

Windows on PCs.

[beakman1966]

This is how internet should be used. Some people know how to make a video and teach a lesson.

[Sarah1627]

great vid..

[mysteryblack2]

this has too few views than it deserves.

[rainboow567]

@mysteryblack2 agree

[tazz24uk]

great video thanks for posting.

[TimTrimT]

Awesome! Anyone know how often do they need to reboost?

[beakman1966]

@TimTrimT According to Wikipedia, several times a year. Whenever they're receivent Space Shuttle, Soyuz or Progress (as Jeff himself said). Try to see the Wikipedia, ISS Altitude Control.

[beakman1966]

And also when the altitude is near the lowest they want.

[srstacy]

@TimTrimT, go to heavens-above . com, there is a chart that shows the height of the ISS, how the height decays over time and how much height is regained at each reboost.

[hyhhy]

Nice demonstration!

[rennnsymbol]

Thats really cool.

[ryanm2910]

Brilliant Video... Bit of an advert for IBM/Thinkpads! Are they especially hardened for the ISS?

Does the boost not have an impact on the structural intgrity of the station?

[ralpher05]

Awesome! So geeking out now!

[jetforme]

That's one of the best videos I've seen yet. Wow, how I envy you guys up there! Thank you!

[sdat3331us]

That was pretty cool. It was funny to see that you use laptops on the space station, too much Star Trek, for me. I guess, I thought that the computers would be built into the station.

[WoWgnome123]

how do you shower

[thebearisoverhere]

Great, thanks for all the insight, Mr. Williams!

[SirJabsAlot]

So cool!

[KyleD00]

this is so cool, I'd love to go to space

[larry785]

It might look more interesting by using a large bag of M & M's!!!

[thirdclass2006]

But also messy!

[adamb0000]

love it

[michaelmas10]

Very cool and illuminating.

[anmoose]

Totally fascinating! The first ever real time demonstration of this phenomenon. A reminder, too, of the precise and delicate balance required to keep that space station where it is.

PS - I WANT that lens... :-)

[HippieBubs]

that was awesome!!!! I'v been waiting for someone to demostrate what happens during engine fire on ISS yay!! thanx! :D

[apopheniacMCMLXXXIX]

Nomination for the most criminally under-viewed video on Youtube.

WHY DOES NO ONE CARE ABOUT SPACE EXPLORATION ANYMORE?!

[apopheniacMCMLXXXIX]

Gravity on Earth is about nine meters per second per second. So if they showed one meter per second per second, during the burn, the ISS would have about a ninth of a G.

Am I right, or is my math off?

[marsCubed]

The numbers are mentioned in the video,

2.7 meter per second increase in velocity was being sought by the burn, to be achieved by an acceleration of 0.0185 m/s^2

If you know the length of time of the burn you could work out the mass of the station.

or if you know the mass of the station you could work out the required length of time required for the burn.

I have just woken up so I will let you do the math :p

[kidclumsy]

Awesome!!!!

[Ishidasouken]

windows on the ISS

kinda scary =D

[Ishidasouken]

I meant microsot windows, the OS, not actual windows

you know =P

[necox5]

That is cool!

[Hanzi89]

That is the single most fantastic demonstration of how it is to be living in zero G! Wow!

[1RadicalOne]

Space is indeed amazing, but your planet is even more awe-inspiring.

[CiphersSon]

wtf is up with the old ibm lappys ;-) lenovo bought out that devision in 2004! But yea thats very cool :-)

[supermonkee48]

They have low power and cooling requirements for what is effectively a crew living and working in a tin can with limited power.

[adonist7]

wonder how much that camera lense costs...

would die to become an astronaut

[thedrizzle09]

Don't die! lol. We need good, mentally equipped Astronauts. Go to an Aerospace Engineering school. Go for it. :)

[adonist7]

unfortunately I do not have the marks to get into that program :( I hate the schooling system

[buriduh]

thats awesome, it must be an amazing experience up there!

[nisimgarame123]

cool

[albula642]

THX a lot!

[PatriotsRepublic]

So cool.

[crimsoncoin]

Hey hi5 to the stars of Nasa