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| bio | website | infosecfrog.blogspot.com |
|---|---|---|
| location | Scotland, United Kingdom | |
| age | 41 | |
| visits | member for | 2 years, 2 months |
| seen | 2 days ago | |
| stats | profile views | 141 |
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Oct 12 |
comment |
what would my path look like using the sun for navigation Correct, in fact it only will twice a year. |
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Oct 12 |
answered | what would my path look like using the sun for navigation |
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Oct 8 |
revised |
Beer bottle leftovers pour quickly only after waiting? beer |
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Oct 8 |
answered | Beer bottle leftovers pour quickly only after waiting? |
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Oct 4 |
answered | How do magnetically levitated trains (maglevs) stay on the tracks? |
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Sep 28 |
comment |
Is Earth's orbit altered by recoil from take-off/launch/recovery of aero/space vehicles? The simple answer is yes. By an incredibly small amount, especially as most of the mass returns to earth. |
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Sep 6 |
comment |
Infinite Energy from Bobbing sorry @JohnK - not going to bother - it is way too trivial. Look up any description of real world losses in dynamic systems. |
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Sep 5 |
comment |
Infinite Energy from Bobbing very simply - neither of your equations is true in the real world. You need to add in a term for losses such as friction in the rubber of the balloon, turbulence in the air when it is moving past balloon or propellor etc etc etc |
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Sep 5 |
comment |
Infinite Energy from Bobbing no, I'm bringing my common sense to bear: everything costs energy. |
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Sep 2 |
comment |
Infinite Energy from Bobbing no- no there shouldn't. every process loses some energy in heat, turbulence, drag etc. so you will never generate more potential energy. |
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Aug 31 |
awarded | Organizer |
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Aug 31 |
revised |
How to measure g using a metre stick and a ball edited tags |
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Aug 24 |
answered | How do NASA's Curiosity determine the elemental composition of Mars using spectrometer? |
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Aug 22 |
answered | Infinite Energy from Bobbing |
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Aug 18 |
comment |
What is physics of a normal jump? Can you explain what you mean? What kind of jump? If one exactly like in your image, what part of it is mimportant? There are a lot of aspects to take into account, so if you can give context that would help. |
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Aug 14 |
answered | can sound travel is space? |
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Aug 8 |
comment |
If the universe is infinite, shouldn't I already have been contacted by a time and space travelling doppelgänger? I read the q but like I said your linkage between paragraphs three and four doesn't work for me. |
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Aug 8 |
comment |
If the universe is infinite, shouldn't I already have been contacted by a time and space travelling doppelgänger? Infinite doesn't have to mean everything happens. Infinite is weird like that. Time travel may be a physical impossibility - an infinite universe won't change that. |
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Aug 8 |
answered | If the universe is infinite, shouldn't I already have been contacted by a time and space travelling doppelgänger? |
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Jun 26 |
revised |
Can a large thermonuclear bomb be used for planetary defence? spelling and formatting |
