The metal strip in paper currency is sensitive to microwave and radio waves.

Because it apparently tends to burn a hole in the pocket.

Stellar objects and radio waves?

I always wondered, when hearing stellar bodies like pulsars, quasars and black holes emit radio waves, the following:

1) Are these waves akin to AM/FM/VHF/UHF type signals in that they transmit signals and sound?
2) If not, are these "waves" just variations in the redshift of hydrogen?
...

A radio wave walks into a bar and asks for a pint.

The barman says, "here you go, but why the long phase?"

This joke may contain profanity. 🤔

A guy was recruited for the first settlement on another planet....

The Settlement Chief met him on the landing site.

"This place is going to take some getting used to. It's like a mirror version of Earth. The elements which are rare on Earth are the most abundant here while the common elements are extremely rare."

"So why are we here then," the guy a...

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