The higher you go, the more you range you’ll get. Surprisingly the curvature of the Earth even on short distances does have a measurable effect on your range. The curvature is approximately 8 inches per mile or 1 foot every 1.5km (source) which means holding your radio higher and getting...
No, what will make me mad is the insistence that it’s HSR or nothing or that the “important” part of our new Amtrak Iowa service is actually that it gets people between Des Moines and Omaha so it’s fine to just have three trains or one train per day to start and to start axin...
An everyday example of propagation delay is the difference between when people can see a strike of lightning flash and when they hear the thunder. The flash from the lightning travels incredibly quickly, at the speed of light of about 300,000 kilometers per second (km/s) or 186,000 miles...
It might not seem very significant to round out nautical miles to either 1 mile or 2 kilometers (and then convert from there), and that’s because in short distances,it doesn’t matter all that much. But when you’re travelling vast distances where you have to deal with the curvature o...
Related to curvature:radius of curvature Category filter: AcronymDefinition KKing(playing cards, chess) KBlack(in CMYK color space) KKindergarten(as in K-12) KKelvin(thermodynamic temperature scale) KKosher(symbol on food labels) KKilo-(thousand) ...
gravity with a more complete, comprehensive and geometrical picture of spacetime. Rather than gravitational forces, spacetime was a geometrical entity that was curved due to the presence of matter and energy, and all particles, both massive and massless, moved according to the curvature of that ...
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