fsh

24 ms·

361.
by fsh 3y ago
That's because the MacBook idles well, and most of the time is spent idling. Some modern Windows machines like the T14s Gen2 AMD come close, but others don't.
362.
by fsh 3y ago
Not really. A M2 Pro draws something like 40W under all-core load which is comparable to AMD Ryzen mobile CPUs with similar performance. The long battery life of the MBP is almost entirely due to the crazy low idle consumption of the entire
363.
by fsh 3y ago
There is absolutely no guarantee that the sum of two quantities with compatible units makes any physical sense. The issue here is that angles are inherently unitless geometrical quantities. "Radian" is merely a reminder that a num
364.
by fsh 3y ago
No, the Hubble constant has the unit 1/s. According to SI "the hertz shall only be used for periodic phenomena".
365.
by fsh 3y ago
I don't find this rambling insightful at all. Here is what the BIPM actually says about the topic: The SI unit of frequency is hertz, the SI unit of angular velocity and angular frequency is radian per second, and the SI unit of activ
366.
by fsh 3y ago
The paper is about digital gate-based quantum computers. These have almost nothing in common with D-Wave's analogue quantum annealers. They certainly cannot run Shor's algorithm (they don't run algorithms at all).
367.
by fsh 3y ago
Nuclear waste does not consist of Uranium, but of the much more radioactive fission products. The Okla natural reactor went critical for the last time around 2 billion years ago. Indeed, nuclear waste is not a problem if you can wait for 2
368.
by fsh 3y ago
Nuclear power plants produce many many orders of magnitude more radioactivity than coal power plants for a given amount of energy produced. You are probably misinterpreting the famous 1978 study [1] where the radioactive emissions of nucl
369.
by fsh 3y ago
No, the problems are very different. The properties of multi-electron atoms can actually be calculated reasonably accurately with numerical methods, but including relativistic and quantum electrodynamic corrections is much harder than in si
370.
by fsh 3y ago
The title says that the experiments diagree with "the leading theory of the nucleus", which is chiral effective field theory. I don't see anything wrong or "clickbaity" about this.
371.
by fsh 3y ago
The mass ratios of charged particles, such as atomic and molecular ions, can be measured incredibly accurately in Penning traps. Some of the most accurate comparisons are between the mass-3 ions ³He⁺, HD⁺, T⁺, and H₃⁺. Of these, only H₃⁺ ha
372.
by fsh 3y ago
No, it really isn't. Xerox had a bug in the image compression algorithm. Smartphones use neural networks and multiple exposures to achieve picture quality far beyond what the hardware is capable of. This is very different technology fo
373.
by fsh 3y ago
People forget how large car batteries are. With a typical range of 300 km per charge, 3000 cycles correspond to a battery lifetime of 900000 km. The rest of the car will wear out long before this. In addition, electric cars are usually conf
374.
by fsh 3y ago
From the security advisory: > The vulnerability stemmed from incomplete input validation of user supplied .tar files as it pertains to the names of the files contained within the archive. Consequently, a remote attacker could format fil
375.
by fsh 3y ago
I agree that for a single meter (which for some reason is bolted to the outside of the house), the risk of vandalism is the same, whether it is remote controlled or not. However, a vulnerable wireless (or even internet-connected) meter woul
376.
by fsh 3y ago
It's even the case for paper tickets, unless you pay with cash.
377.
by fsh 3y ago
GPS satellites don't compensate for relativistic effects (except for the huge offset built into their atomic clocks), but receivers certainly do. The satellite orbits are slightly elliptical which leads to varying gravitational time di
378.
by fsh 3y ago
ICBMs are probably the only part of the military that doesn't need GPS. Star trackers are more than accurate enough for that.
379.
by fsh 3y ago
I believe this might be the correct answer. The signal from a GPS satellite is incredibly weak (way below the thermal noise of a typical amplifier) and can only be detected by correlating it with the satellite's unique gold code. In ad
380.
by fsh 3y ago
The high-precision P(Y)-signal and the new M-signal are still encrypted. This is essential for military applications since otherwise GPS would be trivial to spoof.
381.
by fsh 3y ago
The Thorlabs kit looks like a very decent Michelson interferometer that can be used for a lot of demonstrations such as measuring wavelengths and studying the coherence properties of light sources. However, repeating the Michelson-Morley ex
382.
by fsh 3y ago
That's what the "flag" button is for.
383.
by fsh 3y ago
Modern silicon PV cells are cheap, non-toxic, stable, and their efficiency is more than half of the theoretical maximum. The big challenge is storage, PV generation already outperforms any other power source.
384.
by fsh 3y ago
There is no way you could repeat the Michelson-Morley experiment with that small and floppy Thorlabs EDU kit. The experiment from 1887 had an arm length of 11 m and was interferometrically stable (typical length fluctuations much smaller th
385.
by fsh 3y ago
The placebo/nocebo effect of drinking a sweet tea will most likely overshadow any physiological effect by a large margin.
386.
by fsh 3y ago
Looking at Fig. 2 of the original study [1], I can't see any significant effect of the studied variables (RGL1, RGL2, RGL3, E1, E2, and E3). Am I missing something, or is the standard for significance insanely low in this field? [1] h
387.
by fsh 3y ago
Smallpox was eradicated through strictly enforced compulsory vaccinations.
388.
by fsh 3y ago
That part of the article ("The Magnifying Transmitter") is just gibberish. Tesla's mental health must already have been in steep decline by 1919. Or he was intentionally trying to bullshit people.
389.
by fsh 3y ago
The retracted paper contained obviously faked data. This is not "good science" by any means.
390.
by fsh 3y ago
/usr was the user directory before Thompson and Ritchie bought a new disk and mounted it as /home. The crazy names are really just a historical accident, not some smart acronyms.

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