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Topic: zero gravity

in Forum: Humor


zero gravity

Posted: 2/1/04 9:25pm Message 1 of 3
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Anacortes, WA - USA
Joined: 12/16/2002
Posts: 1293
Vette(s): 1979 Red #72 C3 Corvette,T-350,Black interior,air,tilt/tele,K&N.And a 1978 Olds Cutlass 350/350,auto,air,2-dr.,buckets
When NASA first started sending up astronauts, they quickly
discovered that ball-point pens would not work in zero gravity. To
combat this problem, NASA scientists spent a decade and $12 billion developing a pen
that writes in zero gravity, upside down, on almost any surface
including glass and temperatures ranging from below freezing to over
300 degrees Centigrade.

The Russians used a pencil.



Enjoy paying your taxes--they're due again.


|blinkyeyes|


Jon,-Majestic Glass Corvette Club-....Red #72,blk.interior,1979 C3 Corvette-TH350,Weiand,Holley,glass tops,Pioneer,3.55's,K&N,Dynomax,Flowmaster 40's,Energy Suspension,Spicer,VB&P(pics soon); 1978 Olds Cutlass Supreme 350/350,Dk. Blue 2-door Coupe-Hotchkis,PST,K&N,XM...'99 Mitsubishi Galant GTZ V6,black/grey leather,intake,strut bars,tint... |IMG|http://www.msnusers.com/cutlasscorvetteworkinprogress/shoebox.msnw?action=ShowPhoto&PhotoID=63|/IMG|

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zero gravity

Posted: 2/2/04 6:53am Message 2 of 3
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Warner Robins, GA - USA
Joined: 1/27/2004
Posts: 8
Vette(s): 1975 Red L-48 Coupe
While I do not like Government waste, this story is yet another urban legand. Here is a link to the full story on snopes.com

http://www.snopes.com/business/genius/spacepen.asp

And the real story of the space pen:

/---Begin quote
NASA never asked Paul C. Fisher to produce a pen. When the astronauts began to fly, like the Russians, they used pencils, but the leads sometimes broke and became a hazard by floating in the capsule's atmosphere where there was no gravity. They could float into an eye or nose or cause a short in an electrical device. In addition, both the lead and the wood of the pencil could burn rapidly in the pure oxygen atmosphere. Paul Fisher realized the astronauts needed a safer and more dependable writing instrument, so in July 1965 he developed the pressurized ball pen, with its ink enclosed in a sealed, pressurized ink cartridge. Fisher sent the first samples to Dr. Robert Gilruth, Director of the Houston Space Center. The pens were all metal except for the ink, which had a flash point above 200°C. The sample Space Pens were thoroughly tested by NASA. They passed all the tests and have been used ever since on all manned space flights, American and Russian. All research and developement costs were paid by Paul Fisher. No development costs have ever been charged to the government.

Because of the fire in Apollo 1, in which three Astronauts died, NASA required a writing instrument that would not burn in a 100% oxygen atmosphere. It also had to work in the extreme conditions of outer space:
In a vacuum.
With no gravity.
In hot temperatures of +150°C in sunlight and also in the cold shadows of space where the temperatures drop to -120°C
(NASA tested the pressurized Space Pens at -50°C, but because of the residential heat in the pen it also writes for many minutes in the cold shadows.)

Fisher spent over one million dollars in trying to perfect the ball point pen before he made his first successful pressurized pens in 1965. Samples were immediately sent to Dr. Robert Gilruth, Manager of the Houston Space Center, where they were thoroughly tested and approved for use in Space in September 1965. In December 1967 he sold 400 Fisher Space Pens to NASA for $2.95 each.

Lead pencils were used on all Mercury and Gemini space flights and all Russian space flights prior to 1968. Fisher Space Pens are more dependable than lead pencils and cannot create the hazard of a broken piece of lead floating through the gravity-less atmosphere.
/---End quote


zero gravity

Posted: 2/2/04 10:31am Message 3 of 3
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Wayne, NJ - USA
Joined: 5/31/2002
Posts: 973
Vette(s): White 1975 L48 Stingray 129,000 Miles, daily driver.
yes Bryan, the truth is great and all, but in the interest of humour I like the first story better! |laugh| |laugh| |laugh|

|cheers| Wish I could get a pen for $2.95 School Bookstore is a BAD PLACE!

Scot


in Forum: Humor


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