fsh

13 ms·

211.
by fsh 2y ago
It's probably this paper: https://doi.org/10.1088/1751-8113/44/49/492001
212.
by fsh 2y ago
I believe that this idiotic short-sighted minmaxing (mainly due to the conservative party) has led to many of Germany's current infrastructure issues. Laying fiber? VDSL is cheap and has been good enough so far. Renewable energies? Imp
213.
by fsh 2y ago
Clearly this model no longer works. Bell labs had 11 nobel prize winners. What did Google invent? Slightly better generative neural networks whose offsprings now pollute their search results?
214.
by fsh 2y ago
Fukushima also released more radiation than all the coal that has ever been burned (a few hundred PBq, ignoring the thousands of PBq of Xe-133). The amount of radiation created by a nuclear power reactor is on an entirely different scale th
215.
by fsh 2y ago
The explosion of Chernobyl released a few thousand PBq of activity. Coal contains a few tens to a few hundreds of Bq/kg. You would have to burn something like 50 times the world coal reserves (and make sure not to use any exhaust filte
216.
by fsh 2y ago
The encapsulation of the six small cells takes up a significant fraction of the volume of a 9V battery.
217.
by fsh 2y ago
Gorilla glass is easily scratched by sand, whereas sapphire or diamond stays flawless for decades.
218.
by fsh 2y ago
None of the techniques achieve anywhere near the required performance metrics for useful QC. Improvements also appear to have slowed down accross the board despite massive investments. I would not hold my breath for QC to arrive anytime soo
219.
by fsh 2y ago
In contrast to what the article claims, it is also not a new idea. The original proposal was made 40 years ago, and it was immediately recognized that the required authenticated classical channel makes it useless in practice. Doesn't s
220.
by fsh 2y ago
Yeah, the story contains some obvious bullshit. There is no way in hell a flashlamp-pumped Nd:YAG laser could cut through a piece of steel. With typical ~Hz repetition rate and ~J pulse energy, the average power is only around 1 W. This is
221.
by fsh 2y ago
What a weird thing to focus on. Even a modern warship is probably full of 74 series logic ICs which predate 8-inch floppies by several years. If the floppies did the job in 1994, why shouldn't they today? It's the same ship after
222.
by fsh 2y ago
This is not a NYT article, it is an opinion piece written by a third-party author. The NYT editors often don't apply very strict journalistic standards to opinion pieces. This is an (in my opinion somewhat misguided) attempt to be &quo
223.
by fsh 2y ago
I don't find this convincing at all. Pandemics need high population densities to start, so it is very likely to have the origin in a large city. Even if a virus did emerge in a smaller city, it would probably fizzle out without raising
224.
by fsh 2y ago
I can't find a single piece of evidence in the article. These Gish gallops of utter bullshit have really poisoned the public debate.
225.
by fsh 2y ago
"Wildlife" markets usually sell farmed animals, otherwise the produce would be prohibitively expensive.
226.
by fsh 2y ago
There is no direct evidence. Due to the experience with SARS-CoV-1 and fear of repercussions, farmers in China mass-culled susceptible animals before any testing could take place. However, SARS-CoV-1 was traced to palm civets, and both -1 a
227.
by fsh 2y ago
There is zero evidence for this theory. On the other hand, we know that dangeous viruses emerge from farms every couple of decades (see above). I find it prudent to focus on the known risk, rather than speculate on a hypothetical one.
228.
by fsh 2y ago
"Presumptive positive" means that the Colorado Department of Public Health and Environment has tested them positive, but the CDC has not yet confirmed it.
229.
by fsh 2y ago
Some of the scariest viruses of the 20th/21st century emerged in large-scale farming operations (1918 influenza, SARS-CoV-1, most likely SARS-CoV-2). It seems like these farms are massive accidents waiting to happen.
230.
by fsh 2y ago
There's no mystery here. One country came up with some arbitrary criteria, and the other countries copied them.
231.
by fsh 2y ago
The atomic clocks used in GPS are many orders of magnitude worse than state-of-the-art, and are not a significant limitation for the accuracy of the system.
232.
by fsh 2y ago
Quantum key distribution is completely unsuitable to replace asymmetric cryptography, even when ignoring the (enormous) technological difficulties. It fundamentally cannot handle authentication, and requires a pre-shared key to prevent MITM
233.
by fsh 2y ago
If Jaeger-LeCoultre managed to screw together a cm-sized watch in 1929, Apple should be able to manage it with a ten times larger iPhone.
234.
by fsh 2y ago
Screws and gaskets are just as compact (see literally any wristwatch), but slightly more expensive. This, and probably some planned obsolescence, is the only reason why phones are glued together.
235.
by fsh 2y ago
There is no conflict between IP68 and user-replacable batteries. Quartz watches have achieved this many decades ago.
236.
by fsh 2y ago
Not very surprising with 16 of the 25 years being under a conservative government. Even so, the electricity production from coal has more than halved over the period.
237.
by fsh 2y ago
This is incorrect. Almost all primary energy is turned into heat eventually. Only a microscopic fraction is turned into light that escapes into space.
238.
by fsh 2y ago
SMRs are based on the wishful thinking that, for the first time in history, making an industrial facility smaller increases economic efficiency. It's just not going to happen.
239.
by fsh 2y ago
Yes, but the direct heating effect is quite small compared to the effect of greenhouse gases. The world primary energy consumption is around 19 TW, whereas radiative forcing (difference to pre-industrial values) is estimated to be around 1
240.
by fsh 2y ago
Molecular hydrogen does not cause embrittlement (neither gaseous, nor liquid). This is a concern in certain chemical reactions that produce atomic hydrogen, but not in any storage applications.

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