Is the backside of a portal transparent? I thought it might connect to the backside of the other portal…

They should probably try to fix the issues that caused the population to vote for him.

It never about “fixing” or “killing” individuals, but about systems that do not work for some people.

My shower thought since I watched Star Trek: In a world where universal translators are ubiquitous, do babies even need to learn any common language, or do they each develop individual languages and let the UT handle the rest?

UT translating baby noises into articulate language, should have been in an episode.

There is no such big differences between a light emitting (LED) and a light receiving diode (photodiode), they are just the reverse of each other. In fact photodiodes can even emit light, but very inefficiently. Same in reverse, LEDs can also detect light, just badly.

It seems like most efficient energy conversion methods can be used in both directions.

These radio telescopes don’t transmit anything at all, they listen to radio waves coming from the cosmos. Much like a normal telescope doesn’t transmit light.

If you invert the flow of the electrons, a receiver becomes a transmitter.

Speakers can become bad microphones and vice versa. Pretty sure that a radio telescope is a very bad transmitter for human music, but it could be possible with some changes…