physics
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How does the moon, based on it's size and weight, orbit the Earth when the Earth has relatively weak gravity?
Asked by whiteliondreams | 22 responses -
Does Mars have the gravitational wherewithal to support a breathable atmosphere?
Asked by Nullo | 11 responses -
How probable is a 4th spatial dimension?
Asked by HolographicUniverse | 20 responses -
What is Time?
Asked by Mr_Paradox | 25 responses -
Inertia problem? Inertia of air?
Asked by prasad | 6 responses -
If two objects fly in opposite directions can they both reach the speed of light relative to the starting point?
Asked by Zyx | 13 responses -
Do you think that knowledge obtained by human science or natural science is more biased?
Asked by ilvorangeiceblocks | 12 responses -
Who performs Chemical Body Burden Testing for human toxins?
Asked by radcliff | 7 responses -
What are the implications of CERN's discovery of a Higgs boson-like particle?
Asked by mattbrowne | 32 responses -
Water expands when it freezes. Ice takes up more space than water. Where do I find the formula?
Asked by elbanditoroso | 6 responses -
What do you make of this reality and its quirks?
Asked by fremen_warrior | 23 responses -
Under what conditions would polonium 210 (Po-210) start a nuclear reaction?
Asked by radcliff | 5 responses -
Why aren't the reactors and cooling tanks of nuclear power plants built below water level?
Asked by gorillapaws | 9 responses -
Is there a neutral state prior to karma?
Asked by whiteliondreams | 46 responses -
As a proton falls into a black hole, it accelerates. How large will its mass become as it approaches light speed?
Asked by Bill1939 | 26 responses -
How does an IFR observer measure the speeds of two craft going oppisite directions approaching "C"?
Asked by mr_g | 8 responses -
Why does time "speed up" as we age?
Asked by Carol | 29 responses -
What source and strength of radioactivity could cause mercury dental fillings to become radioactive?
Asked by radcliff | 4 responses -
I got a B+ final grade from a [B+, 30%] and [A, 50%] with a remaining 20% participation. What did I get in participation for my final grade to be a B+?
Asked by erniefernandez | 11 responses -
Planck's universe, cube or sphere?
Asked by Bill1939 | 22 responses -
How are particle accelerators created from radiowave frequency?
Asked by radcliff | 9 responses -
What if your human eyes did not reflect light?
Asked by radcliff | 4 responses -
What is the correct way to describe this type of physical/sports training?
Asked by pallen123 | 1 response -
How could a human eye become an Optical Black Hole?
Asked by radcliff | 12 responses -
If someone found a black hole, who would you call to test and verify that it really was one?
Asked by radcliff | 11 responses