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- From: mccall@mksol.dseg.ti.com (fred j mccall 575-3539)
- Subject: Re: Physics/Shuttle Question
- Message-ID: <1993Jan26.205620.24378@mksol.dseg.ti.com>
- Organization: Texas Instruments Inc
- References: <1993Jan19.235621.13674@mnemosyne.cs.du.edu>
- Date: Tue, 26 Jan 1993 20:56:20 GMT
- Lines: 28
-
- In <1993Jan19.235621.13674@mnemosyne.cs.du.edu> mperlman@nyx.cs.du.edu (Marshal "Airborne" Perlman) writes:
-
- >I am not a big physics fan, so maybe one of you can answer this in
- >plain english for us non-NASA [as of now, =8)] people.
-
- >In microgravity, the weight of 'stuff' is less (quite less). And more then
- >once I've seen astronauts handle objects of much mass (and if on earth,
- >much weight) like they were feathers. OK, fine I understand that. BUT
- >what allows the shuttle to not be effected by this? For example. If
- >astronaut bob was standing in the shuttle, and grabbed a big-ol satellite,
- >he reaches out and grabs it... ok? But what doesn't stop astronaut bob from
- >accidently grabbing the shuttle or something? and turning it end over end?
-
- >I am sure there is some simple answer to this, but I cannot think of it
- >now.
-
- Weight changes, but mass remains the same. Inertia comes from mass,
- not weight. The astronaut, the satellite, and the Shuttle all have
- the same mass and inertia that they have when they're sitting on
- Earth. One is not likely to move a mass the size of the orbiter very
- much by bouncing astronaut-sized masses off of it (unless one throws
- the *real* hard ;-)).
-
- --
- "Insisting on perfect safety is for people who don't have the balls to live
- in the real world." -- Mary Shafer, NASA Ames Dryden
- ------------------------------------------------------------------------------
- Fred.McCall@dseg.ti.com - I don't speak for others and they don't speak for me.
-