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4hv.org :: Forums :: General Science and Electronics
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Aerodynamics of Russian R-77 guided missile....

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tarakan2
Sat May 07 2011, 04:15AM
tarakan2 Registered Member #3859 Joined: Sun May 01 2011, 03:47PM
Location:
Posts: 179
NASA spent a million dollars trying to develop a pen that writes in space for the astronauts, while Soviet cosmonauts used a pencil.

So don't question my country.

And what does a straight steel digging bar have to do with a rocket?
They are both pointy?
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Patrick
Sat May 07 2011, 04:25AM
Patrick Registered Member #2431 Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
tarakan2 wrote ...

NASA spent a million dollars trying to develop a pen that writes in space for the astronauts, while Soviet cosmonauts used a pencil.
You fail to realise that we Americans cant wait to spend money on stupid ideas. (Libya too.)
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James
Sat May 07 2011, 07:27AM
James Registered Member #3610 Joined: Thu Jan 13 2011, 03:29AM
Location: Seattle, WA
Posts: 506
Link2
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Josh
Sat May 07 2011, 08:55AM
Josh Registered Member #938 Joined: Sat Aug 04 2007, 05:39AM
Location: Honokaa,HI,USA
Posts: 65
Patrick wrote ...

tarakan2 wrote ...

NASA spent a million dollars trying to develop a pen that writes in space for the astronauts, while Soviet cosmonauts used a pencil.
You fail to realise that we Americans cant wait to spend money on stupid ideas. (Libya too.)
I have to agree, we waste tons of money.
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Steve Conner
Sat May 07 2011, 09:05AM
Steve Conner Registered Member #30 Joined: Fri Feb 03 2006, 10:52AM
Location: Glasgow, Scotland
Posts: 6706
Klugesmith wrote ...

The bit about flow separation (and clever new ideas, and force reduction)
reminds me of something I saw for the first time about 4 weeks ago.

Shovels full of holes, for digging very wet dirt and mud.
Normally a heavy chunk of mud sticks to the shovel after each stroke,
and is hard to shake off.
It slides right off the new shovel, whose holes break the suction.

So, puzzle solved. The grid fins make the missile go like s**t off a shovel. smile

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tarakan2
Sat May 07 2011, 08:24PM
tarakan2 Registered Member #3859 Joined: Sun May 01 2011, 03:47PM
Location:
Posts: 179
Good one.
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