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| Boomerang comes back in space |  |
hereandthere (Mar 22 2008 - 09:35) | Rate | Report |
I just cant figure how he had enough space to do this.
it was a very small boomerang...
now if he will just step outside the space station and actually try it in "space."
| Boomerang comes back in space |  |
Bogi (Mar 22 2008 - 13:59) | Rate | Report |
| Boomerang comes back in space |  |
Poppa (Mar 22 2008 - 14:13) | Rate | Report |
Of course the boomerang came back. If they'd thrown it and it didn't come back, it'd be called a stick.
| Doi...the ASTRONAUT |  |
gravy (Mar 22 2008 - 17:57) | Rate | Report |
was surprised??? I`m no rocket scientist (obviously) but I, at least, know how a boomerang works.
Then again, I think this is a case of
tatemae surprise. there`s no way an astronaut didn`t know how this would turn out. no way.
| Poppa... |  |
Coppell (Mar 22 2008 - 18:06) | Rate | Report |
| Boomerang comes back in space |  |
mummet (Mar 22 2008 - 19:13) | Rate | Report |
is this what the Japanese science lab is being used for, boomerang tests?
| Boomerang comes back in space |  |
dat5h (Mar 22 2008 - 19:37) | Rate | Report |
The boomerang would not work in space ... unless you gave it an escape velocity from earths gravitational pull and then waited for it to come back around the sun. In the space shuttle though, it should come back, but that's boring.
| Boomerang comes back in space |  |
timeon (Mar 22 2008 - 20:26) | Rate | Report |
the title of this article is deceiving. as dat5h said, in space there's no way the boomerang would come back, unless we rewrite the physics laws. but in the shuttle how the hell "I was very surprised and moved blabla". these guys aren't supposed to get some degrees?
| Boomerang comes back in space |  |
dat5h (Mar 22 2008 - 21:04) | Rate | Report |
Ok, I did a couple calculations, but it's been a long time since I have done any orbital mechanics ...
The escape velocity of a small object leaving Earth is much smaller than that of the object having a circular orbit around the sun (I assumed mass of boomerang = 0 for this). So all we have to do is give it enoough velocity to create this circular orbit.
vScirc=7.11*10^7 km/hr
*assuming that the mass is .2kg and that it did not loose velocity escaping Earth's orbit (probably a bad assumption)
We find that it requires just less than 4 minutes of power consumption in the entire state of New York from the average in 2001.
| Boomerang comes back in space |  |
dat5h (Mar 22 2008 - 21:07) | Rate | Report |
Oh and I assumed that it was being thrown from the space station perfectly into orbit. By this I mean that a line drawn from the center of mass of the earth in the boomerang's trajectory is tangent to the orbit. Ok I'm done
| Boomerang comes back in space |  |
dat5h (Mar 22 2008 - 21:17) | Rate | Report |
silly me I didn't take into accound the velocity of earth around the sun. Taking this into account we find that the velocity will be too high to form a circular orbit and it would then get an eliptical orbit. Taking this into account I find the energy needed (just to escape earth and create an eliptical orbit is really low. Ok, NOW I'm done
You're not done, because you didn't take into account the effect of a boomerang slingshot around the sun - that would propel you into time travel, and you don't want to go there unless you have Spock doing the calculations.
xD
| "There is no air in space" |  |
velocityboy (Mar 23 2008 - 04:08) | Rate | Report |
Sure there is.
Haven't you ever heard of the Air in Space Museum?
| Boomerang comes back in space |  |
Nessie (Mar 23 2008 - 15:12) | Rate | Report |
Haven't you ever heard of the Air in Space Museum?It's the Air o' Space Musuem. The one in Ireland's the Eire Space Museum.
| Boomerang comes back in space |  |
Altria (Mar 24 2008 - 11:13) | Rate | Report |
A groundbreaking moment for Australian science!
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