Why don't they make cars out of Nitinol?

Then when you get in an accident and munch them all up, you should just put them in an oven and they'd return to their original shape.

I dreamt I invented / flew / swam / road a trans-medium sports transportation device last night. I think this idea came from a youtube video in which they stated that hydrogen was not toxic to breath and could be used to make a breathable air mixture like helium oxygen albeit explosive.

Here's how it worked. You had an experimental plane tube like section. The prop was driven by a very trick single cylinder motor. The piston of the motor was a metal with a high strength and curie point and there was a head built out of alternating layers of metal that would conduct a magnetic field and one that wouldn't. (yea I know wear would be high) and behind it a coil of copper wire.

The cylinder moving would convey a magnetic field to the coil or vice versa. The motor would been entirely sealed with the head exposed outside with cooling fins but the exhaust and intake would go to valving that either went to source of air and fuel and exhaust or a sealed box. In the sealed mode the air intake would also seal.

This would allow the device to act as a gasoline motor/alternator in air mode and as an electric motor in underwater mode. The head would have a third solenoid operated valve so that in electric motor mode compression is relieved.

You'd have an advanced battery pack as well and some electronics that consisted of bridge rectifier charge regulator or alternately inverter. It would probably be lithium / sulfur chemistry because nothing else could provide the necessary density. The regulator would monitor charge state and force a surfacing if too low and shut down charging if too high or battery gets too hot.

The wings would be multiple fold-able design and shaped for maximum lift as this would not be intended as a high speed device owing to power and weight balance not being ideal. They would have tensioning cables arranged to unfold and tension them for flight operation. A largish rudder and vertical stabilizer along with power modulation and a vertical winglet attached to a front steering wheel would assist in directional flight control, ground steering, and directional control on the ground in conjunction with rear rudder.

To save weight the cockpit would not be enclosed and the front wheel and rear wheels would always be extended. There would be a hydrolyzer to provide an oxygen and hydrogen atmosphere for breathing under water.

Excess hydrogen not needed for the breathing mixture could be used to inflate a balloon for buoyancy. The rudder and vertical stabilizer could also be used for dive/surface and directional control.

I don't know if material engineering could even make this all practical, but it would be a cool stunt device for an escape or invasion device in a bond movie.

Anyway, I'm posting this hear firstly for entertainment, at least If found it interesting to fly / ride / submerse in the dream, and second, so it gets on the Fediverse and by extension on Wayback Machine so if anyone does do the engineering and tries to patent it, I can claim prior art, get the patent and license it to you.

Is there anyone who agrees with me that Ubuntu snap packages are doing no favor to Ubuntu or it's users?

My experience was that Firefox was a good stable browser until they changed
the package from *.deb to snap. Ever since that time I constantly get interrupted with pop-ups telling me to exit the browser now for updates and if that isn't bad enough it constantly freezes now while watching videos, writing
something, just regular use

Good Evening,

A LOST dog was brought into the clinic today. He has no collar/identification and no microchip.

He is a male neutered doodle-mix, likely over 5 years of age. If you recognize this dog, please let us know via email as we are closed for the weekend.

Cascade Pet Hospital
(206) 362-3668
14731 Aurora Ave N Shoreline, WA 98133
www.cascadepethospital.com

Went and saw "Top Making Sense", the restoration 2023, and it was excellent. I've never been to a Talking Heads performance and I regret that now because I never realized the continuity of their music until you hear and watch them perform a lot of it back to back, and you hear the sense of continuity and kind of unbounded infinity of space and time.

The quality of the sound recording was also excellent, save for a handful of songs where the right side facing the drum set from audience's perspective, was not miked well, but otherwise over all excellent.

I'm trying to bring up a Mastodon instance and running into this:

RAILS_ENV=production bundle exec rails assets:precompile --trace
** Invoke assets:precompile (first_time)
** Invoke assets:environment (first_time)
** Execute assets:environment
** Invoke environment (first_time)
** Execute environment
** Execute assets:precompile
** Invoke webpacker:compile (first_time)
** Invoke webpacker:verify_install (first_time)
** Invoke webpacker:check_node (first_time)
** Execute webpacker:check_node
** Invoke webpacker:check_yarn (first_time)
** Execute webpacker:check_yarn
** Invoke webpacker:check_binstubs (first_time)
** Execute webpacker:check_binstubs
** Execute webpacker:verify_install
** Invoke environment
** Execute webpacker:compile
Compiling...
Compilation failed:
yarn run v1.22.19
info Visit yarnpkg.com/en/docs/cli/run for documentation about this command.

warning You don't appear to have an internet connection. Try the --offline flag to use the cache for registry queries.
warning You don't appear to have an internet connection. Try the --offline flag to use the cache for registry queries.
error Command "webpack" not found.

I do have an Internet Connection, I also have plenty of RAM, 256GB with 512GB swap.

Any helpful hints appreciated.

Ran across this on ScrewYouTube and enjoyed it so thought I'd share it here.

False Advertising, Theft, 4th Amendment Violations, Shit Audio, Two Great Bands was it worth it?

Well, I won't do it again. Ticket Master advertised the tickets at $35 each, seemed like a pretty decent price but I actually paid $131 for two tickets by the time Ticket Bastards added all their bullshit fees. I was not informed in advanced that I'd be irradiated and just short of body cavity searched to get in. I DO NOT GO TO PLACES THAT VIOLATE MY CONSTITUTIONAL RIGHTS and ESPECIALLY WHEN THEY DO NOT INFORM ME IN ADVANCE, Hence I will not be going to another Ticket Master event nor other events at the Arena. I had a pocket knife which I use for my work, which I was going to be going to immediately after the concert stolen. Well actually extorted, either waste $131 in tickets OR give up a $47 knife. Now as for the audio. The speakers in the Arena are utterly incapable of any bass frequency below 100Hz, had at LEAST 20% harmonic distortion, had absolutely NO transient response on the lows, the highs were good if you sat in a location directly facing the stage, but if you were off to the side, nothing above 8Khz, though you could hear the higher frequencies delayed by about 1-1/2 second after it bounced off the rear of the auditorium. Unfortunately the hanging prison mattresses added to the ceiling during reconstruction didn't help that much. If they had spent a quarter of the amount they spent on LEDs it undoubtedly would have been a better experience, but what would have helped the most would be some semblance of respect and civility and basic honesty on the part of Ticket Bastards and the Arena security staff. I go to lots of events in Tacoma and NEVER get treated like this. Sad to see the city I was born in turn into such a piece of shit.

This is one of the coolest ball lightning videos I've seen, especially it's interaction with electrified rails and with the power lines. Really would like to understand the physics of these things. It surely involves some very intense fields in order to create the arc to the power lines many feet away yet it doesn't arc to the ground and ground itself out.

It is my personal belief that nuclear fission is the ONLY chance the human race has of surviving and prospering up until the point where hydrogen fusion or some totally unknown at this time technology can provide us with reliable, abundant,
economical, and long term viable energy.

But after a number of nuclear accidents, even though the total number of deaths that have resulted are far lower than ANY other power source including all of the renewables, people are paranoid to the point where it's very difficult to license a new reactor and particularly it is difficult to license new safer and much more sustainable designs.

I want you to understand the bullshit that the anti-nuke people go through, first see this film:

.

I want you to note here that after mentioning the legacy of nuclear waste from the Hanford program to make Plutonium from the bomb, he makes the statement that Washington has the highest per capital cancer rates in the nation, this is patently false.

See this chart below, (unfortunately, Friendica's composer will not allow me to inline the chart as I would like) and you will see that Washington State ranks 20th from the lowest to highest in terms of deaths per 100,000 due to cancer. In other words, we are not even average in cancer rates, we are BELOW average. See that Oregon, who gets it's drinking water from the Columbia, which is the contaminated river they are speaking about, has a similar rate. So right there, the very first premise of this film is ONE BIG FAT LIE.

Also notice some of the lowest areas of deaths by cancer on this chart, are the states were above ground nuclear testing was carried out, Nevada (16th lowest cancer deaths), Colorado (4th lowest cancer deaths), New Mexico (9th lowest cancer deaths), and Alaska (34th lowest cancer rates), of all of these only Alaska has cancer rates above the 50th percentile. Colorado is particularly interesting in that it has relatively high background radiation rates not because of the nuclear testing but because it's so high above the atmosphere that there is relatively little shielding of cosmic rays.

The states where the highest cancer rates are tend to be the farming states, so it would seem farming chemicals, probably in large part "round up", would seem to be a much higher contribution to cancer than nuclear waste.

And this is with today's rather poor from either a safety or waste production standpoint boiling water or pressurized water reactors, and the main thing that makes these reactors so dangerous is that they operate at pressures of around 300 atmospheres in order to raise the boiling point of water to around 600-700C because at lower temperatures the thermal efficiency is poor. And in terms of waste production usually these reactors are only 1 or 2 pass, use only the energy available in the U-235 isotope of uranium and recover less than 1/2 percent of the Uraniums energy potential, and this is precisely what makes the waste a problem.

A different type of reactor, a molten salt liquid fuel reactor addresses both the safety issues and the waste and proliferation issues. We should be building these in huge numbers because not only could they produce as much energy as we need to power the planet for more than 1000 years just using the waste from existing reactors, but they could extend the lifetime of existing resources to provide power for the next million years, even more if we extract uranium and or thorium from oceans. And at the same time they eliminate the the long term actinide waste, it just becomes additional fuel, leaving only short term fission products which return to the radioactivity level of the fuel that was initially mined in 300 year or less, and much of those isotopes have medical or industrial uses.

They are anti-proliferation because while they do produce plutonium PL-239 that in theory can be used in bombs, they also produce other isotopes of plutonium which are simply too hot to isolate from the PL-239 and which would cause the bomb to fizzle rather than to explode, that is to say you can't separate it economically by any of the classical methods, diffusion, distillation, centrifugation, thermal diffusion, exchange reactions, lasers, and electrolysis, because it's too hot to handle so it is just left in the reactor core to burn and produce energy.

Now the reason these reactors are so safe, 1) They do not operate at significant pressure, less than two atmospheres generally, just enough pressure to circulate the fuel through the primary coolant loop and heat exchanger, 2) the fission products are constantly removed so if the reactor is scrammed there is no residual source of heat, in a boiling water reactor, the fission products remain in the fuel rod and even if the chain reaction is stopped entirely they still provide enough heat to cause a melt down. 3) A meltdown can't occur because liquid state is the NORMAL state of the reactor. 4) The reactors are self regulating and self adjusting to load with NO mechanical devices. The liquid salt mixtures have a high expansion coefficient that moves the fissionable atoms away from each other as it heats up slowing the reaction, or brings them together as it cools off increasing the reaction and this happens with NO mechanical interventions. At Oak Ridge, they built and operated a test molten salt reactor, they pulled all the control rods so the reactor was going full-tilt, shut off the cooling, and allowed the reactor to run this way for 24 hours, no damage resulted. 5) If by some weird unforseen means the reactor DID actually overheat, it would just melt a melt plug and allow the liquid fuel to drain into a much larger drain tank that would separate the fuel far enough to stop the chain reaction entirely, and with little fission products, because they are continuously removed, there is so little residual heat that just normal radiative cooling of the tank to it's surroundings is sufficient for the fuel to cool down and solidify. 6) Because there is no water in the reactor tank, no hydrogen is produced so there is no potential for a chemical explosion like those that happened at Fukushima to disperse the radioactive elements. Further since only the actinides are in the reactor and the much more radioactive fission products are continuously removed, even if you have an explosion, for which there is neither a chemical nor nuclear basis, you wouldn't distribute these products across the nearby land. The absolute worst nuclear accident you can have is frankly a plumbing leak in which some of the fuel would spill upon the floor and solidify, and since it doesn't have fission products, it would not be intensely radioactive and easily scooped up and thrown back into the reactor tank.

So there are three very compelling reasons we should build these reactors, first, safety, they are safe based entirely on the principals of physics and need no safety equipment to activate to keep them that was, they are inherently safe. Second, they can burn the existing actinide waste for fuel, turning a million year waste disposal problem into a 300 year waste disposal problem so we aren't leaving a nuclear legacy to future generations, and third, they can eliminate the need for fossil fuels, and pull the entire planet out of poverty. We mustn't let stupidity as promoted by this film which is chucked full of lies and damned lies, to deny us this future.

While we currently have none of these reactors in the US, the Russians have been operating several for upwards of 50 years without incidence, and the Chinese, Indians, French, are experimenting with them. Japan has been experimenting with a similar but less safe design that uses molten sodium rather than salts, and the issues are two fold, one is that sodium is more corrosive than the salts although salts are somewhat corrosive, but water at 700C is very corrosive, and the other is that sodium is highly flammable and self ignites when it comes in contact with the air, and Japan did have a accident in their experimental reactor of this nature and had it shut down for repairs for some time as a result so for these reasons I do not favor these reactor types except given a choice between a boiling water reactor and these I'd prefer them, but molten salt is a much safer option.

I find this an interesting move from China overall:

TOKYO -- While China-Australia relations seem to be thawing, Beijing is slowly but surely moving to cut its dependence on Australian iron ore.
Last Friday, mining giant Rio Tinto and a consortium of Chinese state-owned enterprises announced that they had concluded key agreements with the government of Guinea to build a trans-Guinean railway capable of carrying iron ore from the west African nation's inland to the coast.
Over 600 kilometers of rail together with port facilities will "unlock" the potential of the Simandou mountain range, "the world's largest known undeveloped supply of high-grade, low-impurity iron ore," said Bold Baatar, the Rio Tinto executive committee's lead for Guinea and copper, in a press release.
Rather than cutting through nearby Liberia or Sierra Leone, the plan is to travel through Guinea, which has a tradition of being independent and friendly to China. That means snaking through mountainous Guinean terrain to a deep sea port that will also be built. The plan envisions the construction of 235 bridges, while the longest tunnel will be over 11 km.

archive.is/RbjXH