I have countless examples of me googling for a very specific issue, and the only relevant hit I can find is a closed SO question.
it has happened to me once or twice as well :(
Readit Newstensor_rank_0 commented on Stack Overflow Culture codeblog.jonskeet.uk/2018... · Posted by u/mayankkaizen
tensor_rank_0 commented on Geoengineer polar glaciers to slow sea-level rise nature.com/articles/d4158... · Posted by u/ehudla
When a comparison between phenomena is made for the purpose of explanation, yes, analogy is commonly used in the teaching of physics.
But it is better to say that experimental physics is based on the collection of data about a particular phenomenon, and fitting those data to mathematical models to test how well their predictions hold. And that is not analogy.
> And that is not analogy.
technically analogy has a broad definition that applies anytime you compare two things.
tensor_rank_0 commented on Geoengineer polar glaciers to slow sea-level rise nature.com/articles/d4158... · Posted by u/ehudla
That isn't how this works.
The people who believe climate change the least are those that typically live in the middle of America i.e. the least to be directly affected. I assure you that when you speak to Pacific Islanders from Cook Islands, Fiji etc they very much believe climate change is real and are desperate for action to be taken.
If you really want things to change help change the politicians in the US. Because China is doubling down on solutions and we really need the US to be doing the same.
> Because China is doubling down on solutions and we really need the US to be doing the same.
I hadn't heard this. can you give some examples, please?
tensor_rank_0 commented on FCC Accuses Stealthy Startup of Launching Rogue Satellites spectrum.ieee.org/tech-ta... · Posted by u/visviva
I think the term you're looking for is simply "radiator."
yes that is more parsimonious however in non-technical language the term "radiator" is associated with heat exchangers. if you put heat exchangers on the sides of your spacecraft they would function as radiators so I suppose it doesn't matter anyway, arguing semantics is a waste of time.
tensor_rank_0 commented on Unratified Amendments to the U.S. Constitution npr.org/2018/03/10/591758... · Posted by u/happy-go-lucky
I found this article very interesting. I had no idea that Madison proposed 12 amendments (10 of which were the bill of rights and 1 of which was accepted in 1989). The 'lost' 12th amendment which "provided a formula for determining the number of seats in the House of Representatives" has very much been on my mind.
Ironically, it gave me some comfort to know that the issue was as politically impossible to pass then as it is now. It gives me hope that it could be passed knowing that opinion, not a cabal of interests, stands in the way.
> It gives me hope that it could be passed knowing that opinion, not a cabal of interests, stands in the way.
as I've become more open to other people's political worldviews, I've come to understand that any extant political 'movement' (for lack of a better term) has advocates (and opposition) in both categories you mention: interested beneficiaries and prescriptive advocates.
take pre-calculus and do every assignment immediately as it is assigned. then review before the next class. pre-calculus is designed to give people like you the tools to move onto the maths you want to learn.
after that, echoing another top-level comment: take calculus and physics. take 2 semesters of each.
after those 3 classes, you'll know more math than 90% of the world's population. more importantly you'll be prepared to move on to differential equations, linear algebra, and vector calculus.
tensor_rank_0 commented on FCC Accuses Stealthy Startup of Launching Rogue Satellites spectrum.ieee.org/tech-ta... · Posted by u/visviva
"A black body is an idealized physical body that absorbs all incident electromagnetic radiation, regardless of frequency or angle of incidence." [0] Black bodies are theoretical, they do not exist. Apollo had radiators, they might have been black but they were not a black body. Vantablack comes close to a black body for the visible spectrum which is p cool tho.
> Black bodies are theoretical, they do not exist. Apollo had radiators, they might have been black but they were not a black body.
they were, as I said, "black body radiators" which are not theoretically ideal black bodies, but still manage to radiate black body radiation.
tensor_rank_0 commented on FCC Accuses Stealthy Startup of Launching Rogue Satellites spectrum.ieee.org/tech-ta... · Posted by u/visviva
those black body radiators(doesnt exist) will be visible in the IR...unless you can get them down to 3K to blend in with the background. Running a spacecraft that cold is pretty impractical because all the bus equipment uses power and any power=heat. Any power generation will be hot, rtg or solar.
they will be IR visible, but what do you mean they don't exist? Apollo used them to bleed off excess heat.
If it helps read here: https://en.wikipedia.org/wiki/Near_money
Unfortunately this "nonsense" is the explanation that any economist would give you.
Maybe you can be the first one to propose a revolutionary alternative theory, but I haven't read it :)
> If it helps read here:
that doesn't support your novel assertion.
> Unfortunately this "nonsense" is the explanation that any economist would give you.
lots of people running around hn espousing their own particular viewpoint as mainstream econ. are you guys working together or is it just a few guys attempting to take advantage on a non-econ crowd?
> Maybe you can be the first one to propose a revolutionary alternative theory, but I haven't read it :)
well you're obviously not very well read if you think commodity money is a revolutionary alternative theory :). I'd suggest starting with introductory econ textbooks and setting your own prejudices aside until you're better informed.
tensor_rank_0 commented on FCC Accuses Stealthy Startup of Launching Rogue Satellites spectrum.ieee.org/tech-ta... · Posted by u/visviva
a "matte black" spacecraft would get very very hot, too hot for most electronics and be detectable with an IR camera. ion thrusters use significant power and would require a large and visible solar array. misty would be technically possible but a motivated adversary would probably be able to find it. stealth spacecraft are difficult.
I think you could use black body radiators on the other 5 sides to bleed the heat from the side facing the sun.