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/sci/ Science & Math

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Most viewed threads in this category

Why is my brain underclocked?

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Why is my mind always slow, hazy and overly neutral? Why am I always at least slightly fatigued? Why do I have trouble even with basic algebraic manipulation? Why am I slow and tumbling at adapting to mathematics? Why am I anxious about mathematics? Why don't I fully have time for anything necessary in terms of learning, despite having large amounts of time? Why does everyone else have time despite probably having less of it? How come their minds are so fast?

Walter Lewin accuser interviewed

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https://www.insidehighered.com/news/2015/01/23/complainant-unprecedented-walter-lewin-sexual-harassment-case-comes-forward She's a nutcase by her own admission. That said, she appears to have evidence of Lewin's inappropriate behavior in the form of sexually explicit text and photos. Of course, said evidence is not being released to the public. Make of it what you will.
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How can we calculate the perimeter of a circle when pi has an infinite number of decimals? How come the perimeter is not infinitely long?
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Does certainty with regards the position AND velocity of a particle require the mass of the particle to be uncertain? And can one increase the mass of a particle by pinning down position and velocity simultaneously through experiment? Has this been done and can someone link to results/research/clarification etc? Thanks.
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Why is this man so racist /sci/?
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According to this documentary animal farming is (directly and indirectly) responsible for: >Up to 50% of greenhouse gas emissions (more realistic estimates are at about 20%, whereas vehicle emissions account for about 15%) >1/3 of drinkable water usage >Taking up 45% of habitable land >Ocean acidification (through fecal waste) >91% of Amazon rain forest deforestation https://www.youtube.com/watch?v=qGMxKxtsNAI Do you still want to eat meat and animal products? After seeing this documentary I'm thinking of going full vegan, not because it's "morally wrong" to kill animals, but because animal farming is ruining our environment.
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>Industrial Engineering
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Hey /sci/, can anyone give some insight in what is happening in pic related?

Stirling Engine resources

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I am a machinist by trade but still very interested in science. I many ways both share some common cores. But to my question. To no avail I have not found any technical resource in regards to stirling engines. I know how and why they work. That is not the problem. I wish to design and build one from scratch without using someone elses plans. I also want it to be effecient (just because I don't want it to be half ass, not to attempt to get off the grid.) I also want to go through all the calculations to make my design. Does anyone know of any resources with formulas, calculations, etc. on stirling engines such as timing, displacement of cylinders, working gas comparisons and so on? Also want it free...or cheap. I have found books that sound promising but some are out of print so are expensive. On a limited budget because of some legal problems compounded by health problems...
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Hey, /sci/ I've been out of high school for a couple years and forgotten a lot of the mathematics that I learned, but I want to practice them again. Can anyone recommend some books that can teach me what is covered in algebra 1, algebra 2, geometry, and precalc/calculous 1? I need a refresher on most of those concepts
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Is it hard to make uranium hexafluoride gas?
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Why haven't we found life in the Universe? Where is everyone?
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SCITUBE IS BACK ¯\_(?)_/¯ http://instasync.com/rooms/scitube Come watch /SCI/science videos with friends ¯\_(?)_/¯

Do I have my Sig Figs right?

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Holocaust or Holohoax?

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Is there any scientific proof that the holocaust actually happened?
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We're not going to find aliens in our lifetime, aren't we?

I don't understand this equation

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"solve" ?
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How can we fix world hunger /sci/?
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How could it even be possible for the universe to be infinite?
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If I spin a magnet 430 trillion times per second will it produce a red light?






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