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immmmmm
searching PlanetScale…
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20 ms
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181.
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immmmmm
5y ago
i didn't know that, but indeed i found a study that claims that.
182.
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immmmmm
5y ago
in switzerland we call that a bell. coupled with extremely sensitive sensors we call ears, farmers can find a lost cow far away in the mountain. bonus point: tourists love those so much you can buy smaller models at the airport.
183.
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immmmmm
5y ago
it's funny, i was wondering how i could use my old 386 cpu that i saved from my first computer. the memories of running slackware 1.0 on it is still vivid. ah that moment i got my first X server running :)
184.
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immmmmm
5y ago
not at all, was just saying LEDs in these wavelengths are terribly expensive, very cool project
185.
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immmmmm
5y ago
i work with IR emitters (LEDs) (similar to this project but with several cameras), in the SWIR range a single LED can easily cost 10-20$. they tend to have very low efficiency at these wavelengths too, typ around 1mW/sr (120 degrees) a
186.
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immmmmm
5y ago
no the SM is a quantum field theory: particles are excitations of quantum fields, so wave-particle duality is implicit. these fields, at the classical level are function that take a space time coordinate as an argument (space time filling)
187.
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immmmmm
5y ago
cannot find the link but remember a NASA official saying the Kessler syndrome was already happening, which is not surprising since you only need that the rate of replenishing an orbit is higher than cleaning by atmospheric drag to get somet
188.
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immmmmm
5y ago
i have installed a variety of such kiosks systems, i think my preference goes to a lightweight linux where i install just an x server with no window manager, then a simple flask web app and a startx chromium. simple and reliable. i looked a
189.
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immmmmm
5y ago
yes, spaying sulphuric acid in the stratosphere is great too
190.
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immmmmm
5y ago
cheap coal electricity for the environment? i assume you are joking?
191.
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immmmmm
5y ago
you should share your optimism with the million(s) starving in Africa due to extreme drought. also don't forget to put the IPCC in copy, i'm sure the scientists that devoted their life on the subject are interested on your views.
192.
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immmmmm
5y ago
ok i agree there is some tech transfer with NASA, so is with CERN for instance. this is however national space programs. my question was more towards commercial space programs, will the tech they invent be open? if so is it worth letting it
193.
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immmmmm
5y ago
appart from meteorological satellites and the like, for what space industry is useful?
194.
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immmmmm
5y ago
yes lower consumption plus stuff. where does space tourism fits in the lower consumption scheme? i just don't get it. what is critical ? for instance is food production (that will sharply decrease due to climate change) more critical
195.
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immmmmm
5y ago
can you explain me how spacex/tesla are carbone neutral? i agree they had plans to develop solar panels, but AFAIK, the company just collapsed and musk is being presently trialed for bailing out solarcity in an illegal way. silly moral
196.
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immmmmm
5y ago
i don't know any carbon capture technology that can be scaled sufficiently, in the proper time scales, that can do that in a way that is quick enough to do any significant dent to global warming.
197.
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immmmmm
5y ago
is space tourism useful?
198.
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immmmmm
5y ago
thanks making my point clearer. presently 80% of our energy comes from fossil fuels, we need to peak emissions in 4 years max and do -50% in nine years. putting tourists in space doesn't seems like a priority.
199.
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immmmmm
5y ago
you need energy for this to happen
200.
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immmmmm
5y ago
i heard that it's basically 1000 worst than an airplane
201.
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immmmmm
5y ago
be it methane or RP1 you're subjected to the laws of thermodynamics. namely converting CO2 to any of those will require more energy than delivered by your rocket or car. also rocket engines are already some of the most efficient therma
202.
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immmmmm
5y ago
i'm swiss. i think it's interesting to contemplate that, in 2021, being a pacific climate activist, namely sitting in front of a bank with massive investments in fossil fuels or that sort of things to attract attention on the scie
203.
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immmmmm
5y ago
not fully related but i was doing some reading on various "new sustainable ways of transportation" and, since they're building the biggest hyperloop test track near my place, i found this interesting video of some of problems
204.
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immmmmm
5y ago
yes, thanks! i forgot to mention her mom is an hardcore and highly manipulative evangelist, as if life was not hard enough.
205.
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immmmmm
5y ago
they are both. but the former is less controversial.
206.
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immmmmm
5y ago
i was not aware of these pressures, but on the other not surprised. i do fully agree with you, and even perhaps think in a broader sense, that we must watch these extreme religious/ extreme nationalist movements, from a sharper eye. al
207.
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immmmmm
5y ago
agreed, that she "made it" doesn't imply much. my bad. scientific circles are quite a bit the same, in term screening and funding. and yes we shouldn't forget the other ones (why not developing a better, safer and fairer
208.
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immmmmm
5y ago
father is not paying a nickel, and is a violent individual. alternative is social services.
209.
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immmmmm
5y ago
doesn't require brilliance? appart from her deep interest in science, she became one the top twenty most paid porn actress worldwide. i don't think this comes out of pure luck. it is true that the intelligence argument was arbitra
210.
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immmmmm
5y ago
please re read it, with the additional information in child message. i agree and i am a computer scientist.
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