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The following is not a futuristic scenario. It is not science fiction. It is a demonstration of the capabilities of GIS to model the results of an extremely unlikely, yet intellectually fascinating query: What would happen if the earth stopped spinning? ArcGIS was used to perform complex raster analysis and volumetric computations and generate maps that visualize these results.
..it will allow Astronauts to arrive on Mars and start walking, the moment they arrive their.
A tethered object in a lower orbit would have less than orbital velocity so would not be in freefall
originally posted by: BakedCrusader
Why does a hot air balloon go up, with gravity pulling down on everything?
originally posted by: Phage
a reply to: greenreflections
That's what I said. Not be in freefall.
originally posted by: Bedlam
originally posted by: BakedCrusader
Why does a hot air balloon go up, with gravity pulling down on everything?
Something evil, called buoyant force, the bane of second semester freshmen in physics and engineering the world around.
originally posted by: BakedCrusader
originally posted by: Bedlam
originally posted by: BakedCrusader
Why does a hot air balloon go up, with gravity pulling down on everything?
Something evil, called buoyant force, the bane of second semester freshmen in physics and engineering the world around.
Can you explain the concept of buoyancy and density? Freshmen terms will do.
originally posted by: BakedCrusader
a reply to: Bedlam
The air is moving down around the balloon as it goes up? The Earth itself too?