Here’s a circular rainbow from an aircraft a skydiver:
EDIT: image embedding didn’t work
EDIT 2: not from a plane
EDIT 3: sorry for all the edits, fixed image
I’m a programmer and amateur radio operator.
Here’s a circular rainbow from an aircraft a skydiver:
EDIT: image embedding didn’t work
EDIT 2: not from a plane
EDIT 3: sorry for all the edits, fixed image
They do, but compounding errors are always a problem with inertial navigation.
Instead of GPS, they can use fixed radio beacons like VOR and TACAN (which I think are both just US systems, but there are similar systems around the world and at major airports). This is basically the system that was in use before GPS.
EDIT: grammar
I don’t know enough about the lemmy server to say whether this is a regular issue. I’d just retry creating a user with the same email.
Did it show an error when you tried to confirm your email?
The referendum was (if I understand it correctly) about adding an advisory body of indigenous people to parliament. This wouldn’t have given them any power to make decisions, only to advise parliament on things.
The No Campaign just straight up lied to people saying it would let them write laws, take away your land, etc…
Yes, but it looks like it’s been inactive for a while:
Did you know that every Apollo mission carried multiple rolls of ordinary duct tape with them.
It was used occasionally to fix broken things like the Apollo 17 moonbuggy.
They have radiators to dissipate heat. And all the required systems to make that work like coolant pumps, as well as heat sinks (or the coolant fluid is the heat sink).
But they also have heaters, to make sure that (especially the batteries) don’t freeze. Satellites hang in a delicate balance between freezing and overheating.
This mostly wasn’t actually Google, the website it refrences was written by ChatGPT, Google’s crawler just found it and shows it in the summary.
Flourine by itself is nothing compared to chlorine triflouride (CTF) though.
There were some ideas to use it in rockets, but, as John D. Clark put it:
It is, of course, extremely toxic, but that’s the least of the problem. It is hypergolic with every known fuel, and so rapidly hypergolic that no ignition delay has ever been measured. It is also hypergolic with such things as cloth, wood, and test engineers, not to mention asbestos, sand, and water—with which it reacts explosively. It can be kept in some of the ordinary structural metals—steel, copper, aluminum, etc.—because of the formation of a thin film of insoluble metal fluoride that protects the bulk of the metal, just as the invisible coat of oxide on aluminum keeps it from burning up in the atmosphere. If, however, this coat is melted or scrubbed off, and has no chance to reform, the operator is confronted with the problem of coping with a metal-fluorine fire. For dealing with this situation, I have always recommended a good pair of running shoes.
There were a few successful test fires with a CTF rocket on the ground, but to avoid explosions they had go through an elaborate multiple hour long cleaning procedure, and it ended up being too expensive and dangerous.
You can do this in VLC, though it’s not very practical. VLC’s equalizer has a preamp slider, it’s just not great if you want to change it all the time.