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/sci/ Science & Math

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Most viewed threads in this category

Online IQ tests and normalization

37 more posts in this thread. [Missing image file: iq.gif]
The other night there was a thread on here about someone who thought he was doomed as an intellectual because his IQ is 107. I ended up taking the IQ test here http://www.iqtest.dk/main.swf and was shocked when my result was 106. I then took the test at www.iqtest.com (and, yes, paid $10 for the results--a bruised ego can be a powerful motivator) and scored 147. Interestingly, I scored 152 (the ceiling?) on all but one of the subscores, except "computational speed", on which I scored 93 (!). I also paid $10 to take the test here http://www.iq-test.com/ three times. My results were 135, 138, and 147. Then I went back to retake the test that I bombed, but with a few minutes left my fire alarm went off and I had to exit the test. I felt like I did much better the second time, probably because I was pretty tired when I took it the first time. Some thoughts on the three tests: The iqtest.com test is almost certainly only valid for English-speaking adults, and your level of education will affect your result. When I scored so much higher on this test than I did on the first one I took, my first thought was that it's just a vanity test. However, my report CLAIMED that I scored higher than 99.91% of test takers to get a score of 147. On the other hand, they say that the average score is 108. (Their explanation is essentially that retards can't into the internet.) The other two tests are quite similar, though the questions near the end on the one that I bombed seem much harder than the ones near the end on the one that I did well on. Two of the three tests won't give you your score unless you pay them, which must have an effect on the average score. The most difficult of the three tests is completely free, so I imagine that some people take it over and over again to see how high they can score (or just for fun). I also believe that it should be possible to increase your score by quite a large amount on the Raven's-type tests through practice. What does /sci/ think?
20 more posts in this thread. [Missing image file: 1374283293513.jpg]
What would be the implications if evolution and life itself violates the second law of thermodynamics? It IS, afterall, spontaneous order.
5 more posts in this thread. [Missing image file: 1373967609635.png]
Is it possible to get a graduate degree in CS if I don't have any experience with it in undergrad? I was retarded and picked a shitty bio major, without worrying about jobs. Coding is actually interesting... if I get C++ certifications, will any grad school let me into their CS program?
5 more posts in this thread. [Missing image file: 6a00d8341bf7f753ef015436e3eea1970c-800wi.jpg]
Is there any place in the universe more frightening than intergalactic space?
6 more posts in this thread. [Missing image file: 1374305035971.jpg]
What languages are the most practical and/or precise? I want to diversify my resume to be more employable. Also, what language do you think sounds best for kicks?
19 more posts in this thread. [Missing image file: pitch-drip-thumb-570x320-127466.gif]
The Pitch Dropped! After 69 years the pitch has finally dropped!
3 more posts in this thread. [Missing image file: 765666.gif]
I know iq scores are a stupid thing to speak of or base yourself on but... where can I take a reliable one? for free of course
7 more posts in this thread. [Missing image file: This week in science.jpg]
This week in Science
14 more posts in this thread. [Missing image file: 1354485786487.jpg]
I am your average human being. I go through life, not really knowing about the world I live in. I have no special knowledge of earth, space, maths or anything like that. Go on /sci/, tell me something that will blow my mind. [spoiler]Remember to explain in a way I would understand[/spoiler]
6 more posts in this thread. [Missing image file: penises.jpg]
Are there any actual health benefits for having your penis circumcised?
43 more posts in this thread. [Missing image file: 36.jpg]
Can anyone explain the answer to this?
73 more posts in this thread. [Missing image file: images.jpg]
Thoughts on Vsauce?
12 more posts in this thread. [Missing image file: vitamins.jpg]
The Vitamin Myth: Why We Think We Need Supplements http://www.theatlantic.com/health/archive/2013/07/the-vitamin-myth-why-we-think-we-need-supplements/277947/ Nutrition experts contend that all we need is what's typically found in a routine diet. Industry representatives, backed by a fascinating history, argue that foods don't contain enough, and we need supplements. Fortunately, many excellent studies have now resolved the issue.
75 more posts in this thread. [Missing image file: akira2.jpg]
math is completely an art, and totally subjective. A proof might seem right to you and your friend but that doesn't mean anything. There's no way to verify if your judgements and logic are actually true. You can't get a computer program to verify the proof, it suffers from the same problem.
3 more posts in this thread. [Missing image file: 1368003936405.gif]
Some of the science related knowledge, statistics, and sources in this article seem incredibly unreliable. The first sentence of the article is absolutely mindless. Any in/sci/ght on this? http://www.whydontyoutrythis.com/2013/07/16-conspiracy-theories-that-turned-out-to-be-true.html
5 more posts in this thread. [Missing image file: image.jpg]
http://www.youtube.com/watch?v=IPM8OR6W6WE What happens if you make a full diving suit out of it and jump into the ocean? Do you fall at free fall speeds?
6 more posts in this thread. [Missing image file: b06495716493e1c4cd0517b53cb7fa57.jpg]
Can we solve ozone's absence using machines that produce it, and then deposit it in the shortfall zones, replacing the lost ozone? inb4 maymays
6 more posts in this thread. [Missing image file: 1373158846259.png]
So /sci/ Are these the only really important Mathematic operations: exponentiation multiplication addition Derivation Integration If you could use only these operations could you solve any math problem taught in any PhD math curriculum?
3 more posts in this thread. [Missing image file: zinc_reacting_with_hydrochloric_aci(...).jpg]
I work as a Lifeguard for a private outdoor apartment building pool. I have access to various chemicals, including Muriatic Acid (31.45% HCl). I decided to have a little bit of fun with it. I found a piece of metal on the ground at the pool (it's a dirty and slightly rusted medallion), and I placed it in a small plastic container in the filter room, and poured a bit of the acid on it. I also poured a little bit over a small patch of concrete floor next to it. The patch started to bubble quite a bit, but it subsided after about a minute. The metal also started bubbling, albeit less, and it did not subside after a few minutes. I left both overnight. Before I left, I could smell some noxious fumes, which I assumed was the HCl vaporizing quickly because of the reaction. What will I find in the morning? Will the fumes clear out by then? (I'm not sure if the room is ventilated or not) If not, then should I used a base such as soda ash or bicarbonate of soda to neutralize the acid? (I have some laying around I think)
3 more posts in this thread. [Missing image file: Untitled.png]
Hey /sci/, I was thinking about playing the stock market. I've got about $2000 saved up and was wondering if it was a pretty safe bet to invest in IPOs for profitable tech companies. Pic related was one I was thinking about investing in, turned out pretty well.






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