>>8104704 the most reasonable answer would be costs: the Venera landers only survived a very brief time on the surface to send back a few pictures. The hazardous pressure down there is probably going to brake today's equipment as well. So the costs do not justify the means. Also, Mars is much more interesting from a long-term perspective. What are we going to do with Venus? Attempt to land Mark Whatey there?
But I agree that this one pic we have from Venus is making me quite emotional. In my view, having been to... Comment too long. Click here to view the full text.
So we all know the high school textbook explanation of lift is incorrect. It explains that air molecules traveling over a cambered airfoil must travel faster over the top, a larger distance, in order to "meet up" with the molecules traveling along the bottom. This is wrong, as there is no physical principle or rule that necessitates that the molecules must "meet up." Amazing how often this myth is still perpetuated.
Anyway, I know that lift is predominately the result of angle of attack, in accordance with Newton's 3rd law. This is the reason... Comment too long. Click here to view the full text.
>>8104654 To my knowledge, this is exactly what happens and results in a wake of turbulence and vortices. Can't remember where I saw it, but there was a nice .gif showing the molecules of air flowing along an airfoil and demonstrating that the air on top does indeed reach the trailing edge before the air on the bottom.
>>8108502 Part of it is the fact that I reflexively start shitposting on 4chan whenever I feel stressed or frustrated, and part of it is the fact that this idiotic website provides me with a sense of meaning and belonging I can't find in the real world.
Has there ever been an issue that 99% of scientists agreed on, and then we found out that it was just politically motivated and the scientists were wrong or lied?
I mean, with the state of affairs now regarding climate change, there are many people who insist that it's all a lie. But has a lie on this scale ever leaked through the scientific community before? I'm genuinely curious.
The biggest one i can think of is earth being the center of the universe. The church was powerful and to have any sort of career or influence you had to follow the church's way. Most people are followers and don't want to rock the status quo.
I think climate change is somewhat similar. You have 99% who will agree to whatever their funders believe (government) because it puts food on the table. I think the recent discrepencies in the actual data and models showing the warming isn't as severe and perhaps the feedback mechanisms are stronger than thought puts funding at risk for so many people that they are just doing what any would do if they were at risk of losing their job.
>>8097524 There hasn't, I'm guessing because the scientists and politics motivating it are too powerful to fail.
There was a thing called climate gate a while back, but it turned out to be a lie fabricated by environmentalists. Basically an environmentalist targeted the Cato institute (often targeted because they assert opinions that go against the mainstream i.e. Supporting smoking and denying climate change) and made it look like they were trying to hide information, but they actually weren't. Doesn't... Comment too long. Click here to view the full text.
I'm coming clean right off the start by admitting this is my first time on this board. I will also admit that I am a pretty [spoiler]dumb[/spoiler] average 23 yrs old with no special school feats (barely passed weak maths in hs), limited science knowledge (what are physics) but I do have the utmost admiration for creative minds (sci-fi writers, visual artists, vidyas, etc.).
So what the fuck am I doing here? Well, I'm tired of being stupid. I'm tired of being in the mass of uninformed degenerates who live their daily lives without questioning anything... Comment too long. Click here to view the full text.
They come together, the first is used quantitatively. An object has more or less inerta (just like it has more or less mass or momentum), while the conservation of momentum is just a given feature of momentum.
I saw something in the sky tonight and I don't know what it was. It was around 2:20 AM in the morning, I was going for a walk and I was walking up a hill looking over the beach as I was walking I saw this giant light in the sky. It looked like an icecreamcone or lightbulb of fire in the sky. I kept watching it to figure out what the fuck it was. I thought it was a nuclear bomb for a second but then I realized it wasn't a mushroom cloud shape.
I kept watching it and eventually it formed into what looked like a big giant red moon being covered by clouds, then... Comment too long. Click here to view the full text.
> be trying to implement newest neural network paper > author wrote down every single technological details except the fucking 4 hyper parameters used to tune the networks > did manual parameters searching for 2 days > feelsfrustratingman.jpg
advice: divide the parameters' intervals in 5 for each parameter, run the algorithm say 10 times for each combination of parameters, and evaluate some performance (speed of convergence, error or whatever).
do this automatically by using your already existing script in a quadruple loop, and don't forget to store the results.
>reading papers on anything >if it used a survey/questionnaire they NEVER include it >if they use a non-standard tool set-up, there's no pictures or in-depth description >if it's electronic, they never include a circuit >a study looking for correlations will check 10 parameters, find one correlation, but won't describe the correlation between the other elements >no study will... Comment too long. Click here to view the full text.
Hi /sci/, what techniques/methods do you use to improve commitment of information to long-term memory?
Too often I find myself forgetting things that I learnt a few years ago and it makes me unsettled and makes me view the time I spent studying the subjects to have been wasted if I can't even recall it a few years later.
>>8107551 I'm synesthetic (Grapheme-color so numbers/letters are colors), so that helps. This is going to sound super autistic, but whenever I need to memorize a lot of information, recall an image of an intersection near my house and group individual elements as parts of the picture (so in this example, frontal lobe could correspond with the house that is on this intersection and the individual parts would be parts of the house grouped by the colors I associate with them). It's harder for long words because they don't... Comment too long. Click here to view the full text.
>>8107258 No. The only known non-local connection is the collapse of quantum entanglement, which is so limited in its effects and properties that in some interpretations of quantum mechanics there's no faster-than-light effect at all.
I figured this was the most academic board on here.
I need some input, I have a low gpa of 2.4 and the jobs or graduate schools that i want to go to have a cutoff of 3. I could graduate with a 2.8 realistically but my advisor gave me some strange advice.
She told me that if I transferred to another school and graduated in two years from it I would come out with a higher gpa and be more qualified to work where i want to work or get into a better school for graduate school.
The part that confuses me is that she implied that transferring to another school... Comment too long. Click here to view the full text.
>>8106671 There is no limit. You could just keep doing them one right after the other and you would never come at a point where you could not keep going.
And if you mean at the same time, probably 3 but you have to be autistic and have no social life.
Other than that, it should be illegal to even do double majors and it should also be illegal to go back to university for a second degree (of the level) before at the very least 5 years in industry, specially if your education was funded by financial aid programs.
I... Comment too long. Click here to view the full text.
>>8106671 if you can handle a degree you can handle all degrees of that 'level' .why would you fucking choose to do so is another thing entirely . just go for a degree in whatever you find most interesting and read books of whatever other subject you find interesting . that way you can fuck around and study the other shit at your own pace and maybe go to a course or two if they have a really good professor or something .
studied chemistry that way with a totally bro chem professor while doing a physics degree .
In the latest ancient aliens episode, they mentioned that some scientific reports shows that if you subject mercury to a very high level of eletrostatic charge and then spin it, you get a gravitational thrust which allows you to create inertial force that can counteract the gravity.
There are two identical objects, i apply 5 newtons of force on the first and it moves, i do the same to the second object but it doesn't move, the chance of this happening is non-zero, in this hypothetical situation if the cause of the first objects movement is applying the force then what is the effect of the force application on the second object if the two objects are stationary?
Wrote this because saying the force application causes the object to do nothing doesn't make scene to me because it was already doing nothing, it's like saying the object does nothingx2. These two objects have the same mass.
Hello /Sci/ I have a simple challenge for you. If I have a 10ml vial and 2.5 mg of a substance with a molar mass of 209.29 how much water must I add into the vial to fill the vial to 10ml, no more no less. Let's see if any of you actually paid attention in your Chem classes.
A programmable lego or kinect set? Idk. Most mechanicals I saw were working on simulations in matlab and shit. They really didn't do anything intricate, just reviewing real physical properties (stresses and such) and production methods. I almost forgot production, they did a lot of that side. Different types of physical and chemical bonding, lots of shit. Look up your universities curriculum.
How do you deal with the fact that you went to a non Oxbridge / MIT / Stanford / Caltech / Ivy League university and were surrounded by anti-intellectuals and had a much less rigorous curriculum for the entirety of undergrad?
It feels fucking awful to me. When I see giant university buildings I am in disbelief. These are monuments to a broken society that celebrates mediocrity.
>>8105959 >How do you deal with the fact that you went to a non Oxbridge / MIT / Stanford / Caltech / Ivy League university
By not caring. There are opportunities everywhere for those smart enough to look for them and at this point I can tell you that I have gotten more professional opportunities as a student than most of the people at Harvard ever will.
I mean, how common is it, even for Harvard people, to get internships related to their education from their freshman year? I will... Comment too long. Click here to view the full text.
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