[amsat-bb] Re: AMSAT-NA totally metric? and now almost totally off topic.
Sil - ZL2CIA
zl2cia at paradise.net.nz
Sun Jan 21 20:38:53 PST 2007
Tony Langdon wrote:
--- snip --
> That's for sure. It's amazing how many people don't know the
> difference. Not helped when the mainstream media talks about "body
> weight problems" when it's really a problem of excess mass. You can
> reduce your weight by 100% easily, if you have a spare $20
> million. Book a vacation on the ISS! ;) But it's only temporary, it
> all comes back when you reach the ground! ;)
Are you really weightless in space? Surely you're just in free fall.
When the term "weightless" is used to describe the condition astronauts
experience, this is surely a literary term, rather than a scientific one.
Why spend the $20.000.000 (or 20,000,000 if that's your custom) you
mention, when you could achieve that same "weightlessness" by jumping
out of a building (if for a shorter time, of course, and with a riskier
Am I weightless when I jump off a chair?
Are orbiting satellites "weightless"?
Or are they just falling down all the time (in a very special way but
because of their weight).
If a satellite falls down in the special way we call an orbit because
the planet's gravity is acting on it's mass, isn't that weight?
So... wouldn't a "weightless" satellite barrel off on a straight line?
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