Y
HN Search
Hacker News Search
new
|
comments
|
top
|
jobs
cygx
searching PlanetScale…
1.
▲
2.
▲
3.
▲
4.
▲
5.
▲
6.
▲
41 ms
·
421.
▲
by
cygx
6y ago
There are known abiotic pathways. They've been ruled out. There are unknown biotic pathways known to exist (from the press conference, biotic phosphane production on earth apparently still has some large question marks attached?). Ther
422.
▲
by
cygx
6y ago
No-go theorems exist (conservation of energy for example, hence no perpetual motion machines). Instead, they tediously had to exclude any process they could think of one by one.
423.
▲
by
cygx
6y ago
abiotic pathways ruled out To the best of the reasearchers' knowledge: All known pathways to produce phosphane couldn't explain the observation (they were talking several orders of magnitude off). Abiotic 'exotic' che
424.
▲
by
cygx
6y ago
Anyway the point is that counting UK, Spain and Italy with the same weight as countries one tenth of their size doesn't make much sense. If you want to go that way, it's better to look at integrated metrics instead of discarding
425.
▲
by
cygx
6y ago
No, things aren't getting bigger. Like other gravitational effects, locally, spatial expansion would manifest as a pseudo-force, but be too weak to overcome the nuclear and electromagnetic forces that keep matter bound. However, Friedm
426.
▲
by
cygx
6y ago
For reference, here's the list of major western European countries (population > 1M) ranked by deaths per capita attributed to COVID-19: Belgium Spain United Kingdom Italy Sweden France Netherlands
427.
▲
by
cygx
6y ago
Well, they are better off so far than France, Italy, the U.K., Spain, and Belgium What's your metric? Because in terms of deaths per capita, they are supposedly worse off than France - as well as the Netherlands, Ireland, Switzerland
428.
▲
by
cygx
6y ago
But one would also expect death rates to be higher initially due to our ignorance of the disease, so front-loading could be risky.
429.
▲
by
cygx
6y ago
You're right to point out that I should have thrown in some further qualification (it's too early to make definitive statements about long-term consequences). Apparently, there was some significant recovery of lung damage in the a
430.
▲
by
cygx
6y ago
GDP of Sweden still shrank by 8.6% in Q2 (compared to 12.1% for the Eurozone or 10.1% for Germany). It's true that they did better economically, but on the flip side, their death toll is rather high.
431.
▲
by
cygx
6y ago
Your cost-benefit analysis is incomplete: Covid-19 can cause long-term lung damage even in the young.
432.
▲
by
cygx
6y ago
That doesn't sound right to me. Note that four-force is a generic concept not limited to electromagnetism. Current is the source term of Maxwell's equations, which connect it to the potential via the d'Alembert operator.
433.
▲
by
cygx
6y ago
This isn't wrong, but also somewhat misses the point. Four-velocity is change of spatio-temporal position (Δx,Δt) in an inertial frame per unit of time Δτ measured by the object in motion. For a concrete example, think a race track wit
434.
▲
by
cygx
6y ago
Gravity is not a force at all in GR. Rather, the gravitational force is a pseudo-force like the Coriolis force.
435.
▲
by
cygx
6y ago
Does that vector also have fixed magnitude? It's magnitude is called 'mass' (or 'rest mass'/'invariant mass' if you want to differentiate it from the concept of 'relativistic mass', which
436.
▲
by
cygx
6y ago
I don't understand why "faster than light" automatically implies "go back in time". If it takes me 10 seconds to travel 10 lightyears, then that means I should still be traveling forward in time (specifically by 10
437.
▲
by
cygx
6y ago
Also, one feature I would love to see implemented in a modern language [...] In Raku (the language formerly known as Perl6), that is spelled numbers>>.toString() or using proper idioms @numbers>>.Str
438.
▲
by
cygx
6y ago
The word regulation tends to be used to mean rather modern and very sector-specific rules That's not really a modern thing. For example, the reason why Lange Messer (a type of medieval sword, which are nominally "long knives&q
439.
▲
by
cygx
6y ago
we have yet to really unlock the quantum-gravity world IMO Though it is questionable how much a theory of quantum gravity would affect every-day life. Physics hasn't made much progress on that front precisely because it's far re
440.
▲
by
cygx
6y ago
Feel free to create or commission all the radioactive toothpaste you want for your personal use. If your jaw starts falling off, as long as you pay for all associated medical costs yourself, that's your business. The game changes if yo
441.
▲
by
cygx
6y ago
I’m saddened that you think it’s okay to make it a federal crime to create a jelly/marmalade with more than 4 fruits (seriously). Personally, I prefer that to the days of radioactive toothpaste.
442.
▲
by
cygx
6y ago
Groups search for consensus, individuals search for truth. It can get tiring to talk to yet another person that will explain to you how the theory of relativity is wrong when there's open house at the physics department, though...
443.
▲
by
cygx
6y ago
There are some technologies that might be improved to achieve the required efficiency (eg power-to-gas[1] or cryogenic storage). [1] https://www.kit.edu/kit/english/pi_2018_009_power-to-gas-wit...
444.
▲
by
cygx
6y ago
You're aware that it's France that nearly crashes the European grid every other winter? Some German articles on the topic: 2012: https://www.heise.de/tp/features/Warten-auf-den-Blackout-in-... 2017: htt
445.
▲
by
cygx
6y ago
I thought that was a pretty intense debate and one that has significant importance give it's election year. Sure, there are such episodes; I can think of another one off-hand, and if I took time, probably a couple more. But remember,
446.
▲
by
cygx
6y ago
I might be misremembering but I thought her appearance on the Joe Rogan podcast was cited by some as her making a fool of herself while trying to answer an honestly curious question by Joe She called Tulsi Gabbard an 'Assad toady
447.
▲
by
cygx
6y ago
Imagine what we could have achived with all that money allocated to buy paper and pencils for string theorists!
448.
▲
by
cygx
6y ago
We literally cannot perceive the constraints of the latter's underlying physical system. Well, for one, I'm reasonably certain that such a system fits inside a skull...
449.
▲
by
cygx
6y ago
We had an expectation of what the Higgs was before we found it. However, the standard model (which formed the basis for the prediction of the Higgs boson) was created to bring order to the chaos of unexpected experimentally discovered par
450.
▲
by
cygx
6y ago
Technological progress is many orders of magnitudes faster than evolutionary change; assuming the 'magic' of the brain is indeed in the neural circuity, hardware is expected to be powerful enough to simulate that on a timescale of
More ›