326 reputation
14
bio website github.com/SWGlassPit
location Houston, TX
age 31
visits member for 3 years, 11 months
seen 10 hours ago

Engineer analyzing effects of orbital debris and meteoroids on the International Space Station.


Jul
12
comment Why are these periods the same: a low earth orbit and oscillations through the center of the earth?
There's one very small fault with this explanation. Kepler's laws assume the mass of the larger body to be concentrated at its center. When you go through the hole, the effective mass of the earth decreases as you approach the center, so your orbit through the center of the earth is not a Keplerian ellipse.
Apr
22
comment Does centrifugal force exist?
To be technically correct (which is the best kind of correct), even if the earth were at rest, an earth-based frame of reference is not inertial, as it contains gravity as a fictitious force.
Nov
20
comment How does artificial gravity reduction (weightlessness) work on Earth?
@CaptainPlaster That picture above is also not NASA. That's Zero-G corporation (www.gozerog.com), a private enterprise.
Nov
19
comment How does artificial gravity reduction (weightlessness) work on Earth?
These things exist?? Tell me where, so I know where I'm planning my next vacation!
Nov
10
comment Why doesn't a bike/bicycle fall if going with a high speed?
The gyroscopic inertia explanation doesn't really explain why those scooters with the really tiny wheels can stay upright. It's got everything to do with the angle of the fork. If you lean to the right, the angle between the fork and the point of contact with the ground will cause the wheel to turn to the right. This in turn causes the bike to turn right, which, from the now-rotating frame of reference of the bike, causes a leftward centrifugal force that rights the bike.