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Wonder where your tax $$$ are going?
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Wonder where your tax $$$ are going? - November 17, 2006, 02:34 PM

Going long will take on new meaning next week when an astronaut tees up and sends a golf ball flying from the International Space Station (ISS).
ISS Expedition 14 flight commander Mikhail Tyurin will whack the golf ball as part of a six-hour spacewalk planned for the night before Thanksgiving. Joining him will be commander Michael Lopez-Alegria. Flight engineer Thomas Reiter will remain inside the station tending to systems during the spacewalk.
"The ISS is in great shape," said Kirk Shireman, the deputy ISS Program Manager, today in a NASA press conference. "It's ready to support the assembly flight, it's certainly ready to support the EVA that we have coming up a week from now."
Up first on the spacewalk schedule is a one-handed golf-shot by Tyurin [image]. The Russian cosmonaut will hit between one to three golf balls away from the space station. The shots are part of a publicity stunt to promote a new line of golf clubs by Element 21, a Canadian Golf club manufacturer. The balls are extremely lightweight, weighing only 1 gram each.
"To put this in perspective, if you took a one dollar bill out of your pocket, it weighs one gram," said leading spacewalk flight director Holly Ridings.
A standard issue golf ball weighs about 45 grams.
NASA officials said they estimate the golf balls will deorbit safely in two to three days, depending on atmospheric conditions.
"It poses absolutely no concern for the upcoming shuttle launch," Riding said.
Another major task scheduled for the spacewalk is the installation of hardware designed to measure charged and neutral particles in low-Earth orbit. The spacewalkers will also reposition a navigation antenna that will aid the automated docking of a future European cargo ship, and assess whether an antenna used to help dock Progress 23 last month is fully retracted.

"Our colleagues in Moscow are not exactly sure of the configuration of this antenna, and conveniently enough we had this EVA planned," Riding said. "So the crew is going to go back and take a look at the antenna and determine what we need to do about it, if it poses any issues to undocking the progress, which we'll do sometime in January."
Next week's spacewalk will be the fourth for Tyurin and the sixth for Lopez-Alegria.


"If brains were gas. You wouldnt have enough gas, to drive a piss-ants' motorcycle, half-way around a BB."
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November 17, 2006, 02:38 PM

I cant imagine how much they had to pay for that kind of advertising
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November 20, 2006, 12:33 AM

its not gonna be so cool when one of those fukin balls goes through the space shuttle at 1300mph on launch ---- watta buncvha space littering dumbasses
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November 20, 2006, 08:18 AM

NASA approved the stunt on the basis that the orbit decay time for the ball is only a few days--well before the next shuttle flight


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November 20, 2006, 08:37 AM

Why because because the Sun is the longest par 5 in history?


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November 20, 2006, 12:19 PM

Considering the velocity change needed to hit the sun from earth orbit (~30km/s), and a ball speed of ~160mph off a driver, thats a Par 420...

or a peak ball speed of (if it were in the atmosphere) of Mach ~110...I think Tiger can do it


Marc
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November 20, 2006, 12:32 PM

if the ball is in orbit, its already going 7km/s
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November 20, 2006, 01:23 PM

Quote:
Originally Posted by Chris2
if the ball is in orbit, its already going 7km/s
True, but that doesn't help you when trying to "drop" something into the sun.

The total delta-V budget is actually:
Earth escape (to heliocentric orbit) ~3175m/s (assuming 400km circular orbit)
Heliocentric orbital velocity is ~29700m/s, in order for something to hit the sun it would have to lose nearly all of its velocity (if the sun were a point, it would have to retro-fire 29.7km/s in order to de-orbit and hit a central point), since the sun is not a point, a highly eccentric orbit will do, and since I didn't want to do the math, I assumed a straight shot into the sun, so basically, you need somewhere between 30-33km/s overall delta-V to hit the sun from earth orbit...or a par 420 to 460

okay, so I was wrong with the initial 30km/s


Marc
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November 20, 2006, 05:38 PM

I wish you were around when I needed to know what the square root of 12 was


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