From: Dr. Tara C. Smith
I've also seen this misrepresented already. "SARS-CoV-2 RNA was identified on a variety of surfaces in cabins of both symptomatic & asymptomatic infected passengers up to 17 days after cabins were vacated on the DP but before disinfection procedures had been conducted"
Say it with me: *viral RNA doesn't necessarily mean live virus was present.* Now you're going to see "coronavirus can live on surfaces for 17 days!" over and over, but we don't know that based on this study and for those using live virus, it's much shorter.
We will know if GM built a bettter car battery in 8 years or so. I am sort of dubious, because it's more like your cell phone battery than a lithium car battery. It uses cobalt. GM brags that their EV battery uses less cobalt "than other EV batteries", but Tesla uses none. We know that Tesla batteries last. It will take a while to know that about GM batteries.
Musk is great. He took a lot of things that everyone knew about and nobody would dare to do, and made them work from a business perspective. We need lots more people like that.
Blast wind: At the explosion site, a vacuum is created by the rapid outward movement of the blast. This vacuum will almost immediately refill itself with the surrounding atmosphere. This creates a very strong pull on any nearby person or structural surface after the initial push effect of the blast has been delivered. As this void is refilled, it creates a high-intensity wind that causes fragmented objects, glass and debris to be drawn back in toward the source of the explosion.
I would think that welds are quite chaotic in nature. The heat changes the crystal structure of the steel, the welds are not uniform, etc.
Steel is really complicated stuff. It's a matrix of iron alloy and hard nonmetallic crystals like carbides. The iron alloy can have five different crystal structures, and can transition between them through heating - which welding does. There is also thermal stress from welding, which you can relax by annealing, but annealing the entire vehicle is not practical.
A blowout on the remains may correspond to this.
Obviously, we need storage for conventional power uses. But desalination that runs on sporadic power? That would be fine.
And backups are not an issue for desalinization. You only need to desalinate when there is power
So it happens that solar and wind crossed the line of being less expensive to sell to California municipalities than fossil-fuel-based power over the past several years. And the perovskite-based cells are looking very promising, and approaching 30% efficiency for tandem perovskite and silicon cells.
Of course desalinization does not have the storage problem that home power does. If you've got more solar power in the daytime, only desalinate in the daytime. And we have lots of desert in which to make that power.
So yes, there is desalinization in the future. I think the real problem, though, is that California has both more people, and more acres farmed, than it can support.
...and while it sounds great, it's been a disaster for funding the needs of the educational mission of the university:
This assumes that the device with the microphone is sensitive to frequencies above the hearing range. Most devices have a low-pass filter for the purpose of avoiding any input above 1/2 the sample rate of the DAC, since these will create artifacts, aliasing, and distortion. Even in the case that current devices have left out the low-pass filter, it costs pennies to add.
The key elements in human thinking are not numbers but labels of fuzzy sets. -- L. Zadeh