I feel like I should be renaming my blog something sciencey........
After the last post, my friend Beans asks, "So why is it lightening outside right now but no thunder??" Lisa, Madam Physics and Master of Other Science-Type Things, can you help? (PS all in favour of Lisa changing her blog name to "Lisa Knits and Does Science" say I.)
4 comments:
Lisa says: it's because the sound waves from the thunder just didn't reach you. Because air density changes with height (air gets thinner as you go up) sound waves dont travel in straight lines ...and the farther you are away from lightning, the more the bend in the path of the sound wave matters. So there's thunder; it just didn't get to you. Also, thunder echoes off buildings and terrain and stuff, which is why sometimes it sounds like a big clap and sometimes it's a long rumble.
thanks lisa! you learn something new everyday !
i actually taught lisa everything she knows.
lizzy, lizzy, lizzy. you so smart!
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