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Mar
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awarded  Yearling
Feb
16
comment Does everything in this world vibrate? Why?
the story, yes. Important to remember It is fiction.
Feb
16
comment Does everything in this world vibrate? Why?
For amusement - gwthomas.org/wyndham.htm - A John Wyndham sci-fi story on this exact topic :-)
Feb
16
comment Does everything in this world vibrate? Why?
Do you understand the underlying principles of atomic structure? And the vibration of atoms, rather than entire objects. Your follow-on regarding uncontrolled resonance amplification is just wrong. If you pump in enough power at the right frequency you can get vibration, yes, and you can knock down walls if you make them vibrate (battering ram, perhaps) but to make the atoms in a diamond all vibrate is a challenge, as they don't all vibrate at the same frequency - so how will you add power at al the required frequencies...?
Feb
16
answered Why is it called “escape velocity” and not “escape acceleration”?
Feb
1
awarded  Popular Question
Aug
6
revised What planets are visible to the naked eye from Mars?
deleted 81 characters in body
Aug
6
comment What planets are visible to the naked eye from Mars?
Good answer. I like it. Thanks for the Uranus info - I'll update.
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Aug
22
comment How far into space does one have to travel to see the entire sphere of earth?
The Earth's radius
Aug
4
reviewed Reviewed Why do some pressure cookers initially leak
Jul
22
answered Does gravity stack?
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awarded  Good Question
Jul
7
accepted How do whisky stones keep your drink cold?
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May
23
reviewed No Action Needed How does tempered glass work?
May
16
comment Magnetic hot air balloon
Your updates still don't help. There is no way you can get the density below that of space. The rest of the items in there are all down to whatever device you use to heat the plasma, strength of field etc. so you can't even calculate how high it may be able to get to unless you make a large amount of assumptions.