🌸🌹2ck 🌱🐇 @2ck@social.cleverlibre.org
A capable software engineer and aspirating (sic) cook. Also posting about space stuff (mostly NASA) occasionally
pronouns: he, him
Joined Apr 2020
🌸🌹2ck 🌱🐇
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@cryospheroid It's sort of understandable to get bored of melting ice caps, polar bears, and biodiversity in faraway rainforests. If people would realize it could be unbearable heating of their city or the collapse of their country, that's new and dramatic (to the global north). That ought to excite/spark interest. As an artist, I'd use it.
https://www.macaulaylibrary.org/2021/06/22/behind-the-scenes-of-sound-id-in-merlin/
Cool idea, and a really natural application for ConvNets. I'll have to try this.
#birds #machinelearning #ML #audio #nature
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How to calculate the power output of a nuclear reactor - just multiply coolant flow and temperature rise.
But how do you multiply two numbers electrically in a meter, in 1955, while using as little active circuitry as possible, ideally without digital logic, transistors, or even tubes? The answer is a Wheatstone bridge!
(Principles of Nuclear Reactor Engineering, Samuel Glasstone, 1955) #retrocomputing #electronics
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@2ck The light may not get emitted with the same frequency. If it did, there would be no greenhouse effect. CO2 leads to global warming because sunlight absorbed in the visible can be shifted to the infrared, which is blocked on the way out by the atmosphere. (It’s more complicated, but that’s the basic mechanism.)
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@2ck The bounce/reflection changes the frequency depending on material, different frequencies are perceived as different colors by the receptors in the eye. The absorbed photons turn into heat, the ones which gives partial energy to an atom will be reflected at a new angle. The average frequency of all photons reaching your eye determines color.
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@2ck The emitted photon is the same energy as the absorbed one only for single-photon absorption. An atom can absorb multiple photons, and then emit photons of any energy up to the sum of all the energies in the absorbed photons. So the emission spectrum is actually continuous. For molecules, there are various vibrational modes as well, and energy in those can be fed into translational energy, raising the temperature of the material.
I tend to hear #climatechange/global warming framed in terms of rising *average* global temperatures, but it seems like the numbers don't affect most people. Talking about single digit changes in degrees Celsius doesn't viscerally effect people who think in Fahrenheit and easily tolerate a few degrees up or down in their personal environment. I suspect the data about the tails of the temperature distribution may be more compelling. When every summer is the "hottest on record", that has to strike a chord.
#sciencecommunication #statistics
Light absorption and color confuses me. Electrons absorb photon energy at certain frequencies, and the light that's not absorbed is reflected and that gives the color, but doesn't the energy get emitted again with the same frequency? So, the emitted and reflected photons would add together to give back the original color of the light rather than the object. Why doesn't that mean everything is the same color?
#physics #light #color
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my most recalled memory from gscon vienna was when @shibayashi ordered a hamburger at mcdonalds without the meat patty, makes me remember the meme in the pic and chuckle every time
#breakfast : scrambled eggs with kale, parsley, jalapenos, garlic, and mushrooms
+ oatmeal with honey, PB, banana and my secret blend of spices 😋
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Klingon function calls do not have 'parameters' -- they have 'arguments'
-- and they ALWAYS WIN THEM.
-- and they ALWAYS WIN THEM.
Baked potatoes, jalapeno, garlic, parsley and zucchini. One of my weirder late night meals
I wish my high school and undergraduate courses had taught #calculus through the lens of #physics instead of keeping it all abstract. I'm relearning a lot of it now that way, and it actually makes sense and "sticks" because the equations describe real things and I have a reason to know them.
#math #education
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Debian Presence on Freenode https://lists.debian.org/debian-devel-announce/2021/06/msg00002.html
I quite like A1.1
> A1. Software is retrievable by its identifier using a standardized communications protocol.
> [...]
> A1.1. The protocol is open, free, and universally implementable.
I notice some recent images delivered from the #Perseverance rover were actually captured much earlier on in the mission. How do they prioritize image dissemination and upload in their processing chain, I wonder... Presumably they favor sending images of scientific relevance and for operational status, hence more images of soil, rock, and the rover itself. Seeing the parachute from below may be useful, but maybe not needed as much since they'd already landed.
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@naruciakk Frankly, as long as you know how to proxy_pass with nginx and use certbot with webroot for an ssl cert, all you need is rsync
A capable software engineer and aspirating (sic) cook. Also posting about space stuff (mostly NASA) occasionally
pronouns: he, him
Joined Apr 2020
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