If all humans died, when would the last light go out?

Is there such a thing as a magnitude 0 earthquake?

Could you survive a nanosecond on the Sun?

What if you tried to hit a baseball pitched at 90% the speed of light?

animated xkcd 2347 /// all modern digital infrastructure poked by Jia Tan on XZ Utils

Could you swim in a spent nuclear fuel pool?

How high could the magnitude of Earthquakes go?

Could you use a laser as an umbrella?

Can you power your computer by typing?

What if ALL the sun’s power was focused in one place?