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I was vibe researching TUN/TAP devices a few days ago. Cool to see such cool projects using them. I was mostly thinking about making a VPN prototype through.
What problem are you trying to solve?
I want to see the actual laser beams while transmitting those packets.
Do not look at the laser, you wont be able to look at it again
Earlier quoted context omitted.
Not quite the same thing as doing it in an atmosphere.
There's not a huge amount of info I've seen on the specifics of Starlink's LISL setup, but there are a couple interesting bits in here: https://www.pcmag.com/news/starlinks-laser-system-is-beaming... > Brashears also said Starlink’s laser system was able to connect two satellites over 5,400 kilometers (3,355 miles) apart. The link was so long “it cut down through the atmosphere, all the way down to 30 kilometers abov…
Earlier quoted context omitted.
That's right, the beam pointing problem is far harder when everything is moving.
Deterministic space dynamics vs chaotic fluid dynamics (or worse, as the sibling comment by eqvinox illustrates). Space is hard by many aspects, but on that part it's much easier than on earth.
Basically, a filament flashlight is modified so that a magnetic coil was placed in series. An audio source is then fed through a second coil -- I can't remember the exact details of how this worked. The audio source was one of those fisher price sing-along tape players that I also modified I think. The tape was Abba.
On the other end, a cheapo solar cell was hooked up to a small kit amplifier and then you could hear the audio on a pair of headphones.
This was in 2002 ish, so fibre optics was a thing, but it was basically sci-fi for a scrappy kid in southern Africa. My whole spiel was how this was the precursor to fibre optics, and how one day all communications will be done using light in stead of electrons.
Fun times!
[1] - https://en.wikipedia.org/wiki/Photophone [2] - https://www.youtube.com/watch?v=SxlWrqioifg
We had a laser link to the university 20 years ago. 10MBit/s for 300 people. That thing was awful.. lol. The link was dead during - Heavy rain - Fog in the early morning - While snowing for days - Pigeons building a nest within the optics
There are many long-range WiFi solutions. I wonder how these would have performed as alternatives. https://en.wikipedia.org/wiki/Long-range_Wi-Fi
None of this is remotely new or interesting. I was doing IP-over-laser-light at Ethernet speeds over kilometer distances using free-space optics thirty years ago, and even then it wasn't a new technology.
Earlier quoted context omitted.
Is this a jab at the people who believe Egyptians must have used electric lights because we can't figure out how they lit and ventilated their tombs at the same time during construction?
It's a version of an englishman/irishman/Russian archeologist joke, one finds shards of glass (proves invented optics) one finds copper wire (ethernet) and one finds nothing (wifi, punchline)