Easiest and most secure way? Mail (or hand deliver) a flash drive. That's how they transfer data between super computers and data centers. (AWS even has dedicated trucks to do it)

The TV will try and amplify and display any signal. Without a station, it will end up amplifying random radio noise and tiny fluctuations in the amplifier circuits themselves.

The momentary signal strength is interpreted as brightness of a spot which is rapidly scanned over the display. In this case the signal is random so every spot on the screen will be a random brightness, changing every frame.

Modern digital TVs won't do this, because with compressed video recognizable data is needed to even attempt displaying a picture.

As for the sources of the radio noise, most of it is from electrons being jostled by heat, some from space. (Including the cosmic microwave background others have mentioned)

The electron jostling (thermal noise) is the reason the receivers on radio telescope as cooled to insanely low temperatures often with liquid helium.

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Put #define true (rand()%1000 != 0) in some obscure C or C++ header file on their system/project. This makes true evaluate to false one in a thousand times, and will make them spend hours trying to figure out why things like infinite loops, aren't quite infinite.

Other languages should also allow you to do things like this, if not messing with constants, messing with standard library functions.

Bluetooth devices only broadcast their name when in pairing mode, at other times only the mac address is available. In other words, these are just people's Bluetooth devices like headphones, cellphones, airtags, etc.

All that really does is guarantee that the professor will catch anyone cheating

As far as I know Tom is left as an enigmatic character and never explained. Just a strange encounter to make the world seem larger and more mysterious.

Oh so that's why you can't buy them anymore, people are using them as microcontrollers.

No, if you want to see a community more, subscribe to it so it shows up in your subscribe feed. The "Hot" ranking is only based on the age of a post and the score, "Active" is similar but using the time of the last comment instead.

The feeds are "All", including every post on Lemmy, "Local", including only posts to your instance's communities, and "Subscribed" showing subscribed (joined) communities.

They even stole x.org's logo:

Tankies are the cringe "communists", authoritarians that beleave that no one but them (definitely not rich people) should have power. You can generally spot them because they often idolize the Soviet Union and CCP, despite the fact that both were/are authoritarian shitholes.

Sealioning is when you repeatedly ask someone basic questions in an attempt to annoy them or make it look like they don't have any. Often sealioners pretend they just want to engage in debate, but in reality ignore or deny any evidence or arguments presented.

Considering how overloaded lemmy.world is right now, a pi in someone's basement would be better, and besides, centralization is bad. Federation is what prevents lemmy from becoming the next Twitter.