Recent content by pivot

So you're saying that, the sonic boom noise "turns on" when the object travels faster than sound, and then "turns off" when it slows down to speeds lower than that of the sound..?

I have a question. What happens if you're traveling faster than the speed of sound... and then you slow down, passing the sound barrier again, back into the "traveling slower than the speed of sound" speeds? Do you generate another sonic boom?

I feel like, then, all volcanoes would have lightning, but that isn't the case.

does anyone know what causes volcanic lightning? seems like it could be various things (change in pressure, particles in the air, moisture, magnetic materials, etc)