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Kyle Hotchkiss's user avatar
Kyle Hotchkiss's user avatar
Kyle Hotchkiss's user avatar
Kyle Hotchkiss
  • Member for 13 years, 3 months
  • Last seen more than 6 years ago
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Hot air balloon trajectory predictions
Thanks so much for your answer. This really breaks down the problem very nicely! I'm just looking at coding out a predictor so I believe for my purposes (hot air balloon with large drag coefficient and people likely won't take one up in crazy wind shear), the balloon speed could equal wind speed, but this wouldn't be the case for something with a different shape.
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Energy required to reach 1 wavelength
So the initial energy doesn't impact distance... But a certain amount of initial energy is needed to reach a certain frequency?
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Energy required to reach 1 wavelength
Interesting. I don't have any formal education in physics and i guess I may have been applying mechanical wave properties this way.
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Energy required to reach 1 wavelength
How much energy does it take 1 wavelength does it take 144mhz radiation go one wavelength (6 feet) vs how much energy does it take 800hz radiation go one wavelength (250 miles). Since there is such a difference to reach different wavelengths... Wouldn't it take differenet amounts of energy to do so?
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How to calculate pressure at altitude when there is 0 temperature lapse?
Woah, I see what you did there. I'm not so great at math so this approach never even ran across my mind. Thanks, Henry.
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Navy's new Mach 7 Rail Gun Photo
10% "not so bad" for the military.. LOL