Wireless internet connections use light in the radio frequency ranges.

If you want to send someone a signal with visible light, you can turn the light on and off to communicate in Morse code. This isn't as time-efficient as using a whole display, but it allows you a lot of flexibility - the receiver can stand anywhere, and the sender can turn the light on and off without worrying whether it is oriented correctly. Computers do something similar. The encoding system is much more complicated than Morse code, but the basic idea of changing how the light is emitted over time to transmit data is the same.

These radio frequency ranges have wavelengths between millimeters and meters (they go longer, but the longer wavelengths usually aren't' used for data channels). For these long wavelengths, many physical barriers are translucent, the way cloudy glass is for visible light. The transition isn't perfect, but we intentionally use an encoding that can handle a little bit of noise so you can still receive those signals.

Might be because you're not flying intercontinentally / very long distances?

It's very difficult to cultivate a seedless fruit. Even if by magic you could acquire a bushel of seedless apples... how to you make more? Plant the seeds?

The (relatively small, actually) number of seedless fruits thus require some genetic and/or agricultural trickery to create. Seedless oranges come from grafting branches from one solitary mutant orange tree onto donor trees that would otherwise grow seeded oranges. Seedless watermelon are grown by cross-breeding two strains that are sterile when combined.

Haven't they just being giving away free airphones for years?

This has happened in extremely rare cases. It reveals how essential proprioception is for everyday movement. After losing his propioception Ian was completely immobilized and had to painstakingly relearn how to move by consciously tensing muscle groups. To this day every movement he makes requires complete focus and visual contact with each part he is trying to move. Basically he bootstrapped a worse form of proprioception via vision.

https://blog.oup.com/2016/06/movement-without-touch-ian-waterman/

He was interviewed on a radiolab episode which is where I heard of him: https://radiolab.org/episodes/91524-where-am-i I especially like the story of how he once saw a pretty girl and the split second of erotic mental imagery caused him to collapse on the ground 🤣

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>Then, what to do with the salty sludge leftover.

Clean it up and sell it as table salt or leave it dirty and sell it as road salt for the winter (of which there is also currently a shortage)

Funny. I’m surprised the older one doesn’t have 1/4” jacks and a personal 8track player for your comfort.

Gas turbines can eat damn near anything, so it's not clear. Jet fuel is popular for jets but gasoline and diesel and natural gas are all common in gas turbines.

I flew from Germany to the US sometime around 2002 and they showed a movie with breasts in it on the huge projector screen, about half the parents on the plane scrambled to cover their kids eyes.

Other fun military fact, they tell you to decrease the time to gain "unaided night vision" you should close your eyes and shut out as much light as possible. This way they adjust faster and better. Learned it in the Marines and I still do it to this day to adjust to the dark better.

Absolutely, USA is very behind in payment processing. The main reason why is due to large infrastructure, slow adoption, small adoption rate. Basically, because of how big some clients are and because those clients want reliability over security and convenience, they only update when they HAVE to. So basically, they gotta update to only meet PCI compliances.

It's so weird that paying at a restaurant is a 2-step process. You get the bill, give them the card, they auth it, then you add your tip and they clear the tip at EOD when they settle the transaction.

Over in Canada, we just add tip on the terminal / or write it on the receipt so that the server writes total + tip in the terminal and pay it as a whole. At EOD, the merchant settles the batch and done.

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Yeah, i have a similar setup for my dispatch console except they are dual 1/8" plugs. 1 for incoming, 1 for outgoing.

3.5mm was already pretty old when cell phones were the size of a suitcase

"technology" may be too strong of a word for those!

No, they have electronic ones but are essentially a separate plug for left and right audio.

It was always gross...

Because there is no real need to update them. I think you might be surprised at how old some/most commercial airplanes are.

>a channel you could tune to to listen in to the cockpit and pilots communicating with the tower.

I had a flight around 2012 with this feature. I liked it a lot.

Nihilism falls backwards into the abyss, with eyes closed and arms outstretched.

Fatalism dives in headfirst, wearing a shit-eating grin from ear to ear.

That depends upon how you are reaching the Internet.

If you use cable or DSL internet, it travels through wires.

If you use 4G, 5G, or WiFi from somewhere outside the walls, it uses radio.

They did the job though, and you're never going to get a great audio experience on a plane.

There are molecules in your eyes that undergo chemical reactions when light hits them. Those chemicals are responsible for the eye's sensitivity to light. It takes a while for them to transform back to their original state. The reason for the difference in speed is because it takes a while to go from daylight to darkness so during that time your eyes would slowly be adjusting to the change in the amount of light until it was completely dark and you went to bed. At which point you'd wake up and it would be mostly light out again and you'd need to be able to see right away.

Although there is some truth to what you're saying, the adaptation period is due to the retina rather than the pupil