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/sci/ Science & Math

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Most viewed threads in this category

102 more posts in this thread. [Missing image file: 1365192599409.png]
Is IQ a logarithmic scale? I have an IQ of 140 and my boyfriend only scored 130. I'd like to know how to compare the scores. How much smarter than him am I? Twice as smart? Thrice? Ten times? Intuitively I'd say at least twice. So if IQ is logarithmic, the base had to be greater than 2. Thanks in advance for any scientific clarification.
10 more posts in this thread. [Missing image file: ancient-aliens-twerked-my-brain-now(...).jpg]
I need some assistance here.....I'm not too sharp with chemistry. A 4.06 cm3 sample of solid sodium metal has a density of 0.968 g/cm3. What volume does this sample of sodium occupy in its liquid state? The density of liquid sodium is 0.927 g/cm3.

Map/Pro torch FLAME IS ORANGE

4 more posts in this thread. [Missing image file: 1371624789240s.jpg]
I have a bernzomatic ts8000 Map/Pro torch, yellow cylinder of fuel. Flame is supposed to be blue. But mine becomes orange if i turn it above barely on. Center is orange, then blue surrounds it at the base, and the end of the cone and tip are an orange. What do? Im making pipes so i want a clean burning blue flame. What causes the orange and how do I fix?
10 more posts in this thread. [Missing image file: mersenne_prime_spiral.jpg]
mathematicians: is it possible to create a grid, one integer per box, where each box's numeral is the average of the eight which surround it?
0 more posts in this thread. [Missing image file: 52783578230954.jpg]
How do buildings stand with the square-cube law in effect?
39 more posts in this thread. [Missing image file: fact.png]
Why do some people have perfect pitch while others are tone-deaf? What causes such a large variance in ability to process auditory information?
11 more posts in this thread. [Missing image file: 1370216220645.jpg]
Why does penis size vary so wildly? The size of every other part of your body is proportional to the rest of your body. But not your dick. Why?
49 more posts in this thread. [Missing image file: philosopher.jpg]
According to Schrodinger, the cat is both dead and alive because no one can observe the result and determine it. But what about the cat? Can it not observe itself? Does it not keep track of whether or not it's alive? If this is true, then it is observation that determines state of reality, right? If the cat dies, it can't observe itself, so is dead. If the cat doesn't die, it continues to observe itself, and so is alive. Even if we cannot determine the solution, the cat can. If observation determines reality, then we can define a "universe" as "the observed surroundings of a conscious individual". Therefore, we all live in separate "universes" from one another. Two people observing each-other would mean their two universes are coinciding. This has to occur in a dimension transcendent to our own, a "multiverse". But who is to observe that? Some sentient, transcendent being, right?
36 more posts in this thread. [Missing image file: 2.jpg]
is math discovered or invented? is math a part of physics because it describes the rules and manipulation of shapes and numbers? if the above premises are true does math still exist if we have irrational numbers?
3 more posts in this thread. [Missing image file: tit .jpg]
So do tits burst when you smack them really hard? How much newton is needed
3 more posts in this thread. [Missing image file: 2013-06-25_09-21-12.png]
i was thinking, does the angle of a line rise logarithmically as the coefficient of the line increases? like, on a graph.
1 more posts in this thread. [Missing image file: 77142.jpg]
Greetings chemists and untermenschen. The author of these lines is in the strong need of cyclooctanone. Pyrolysis of barium azelate even under vacuum will give very small yield, also I don't have azelaic acid. Double homologization of cyclohexanone with diazomethane looks quite dirty because of epoxide byproducts, and working with tens of gramms of diazomethane for several hours is not very pleasurable. Are there any relatively high yielding chemist-friendly syntheses of cyclooctanone? Please respond.
5 more posts in this thread. [Missing image file: 1369737436617.jpg]
/jp/ here. I've got an arguement with my professor this morning because he insist that multiplication of 4(6) will commence before the division because the division sign can mean a / or a ratio. He also insist that there should be an "imaginary" parenthesis that binds [4(6)+9-3]. So...whats the right explanation in solving this problem? 8(5-8)+12÷4(6)+9-3 =
8 more posts in this thread. [Missing image file: 31-15-BuddingYeast.jpg]
Would it be even remotely possible to genetically engineer a bacteria that can not only survive, but also thrive on Luna? I used to think this was impossible, but seeing how well they can adapt has made me change my mind. This is not evolving them to terraform Luna, its simply to have them exist and stay existing there. I was thinking you could take a form of bacteria (probably Yeast since they adapt very quickly) and expose them to gradual temperature extremes. Start at 30 degrees C, and then move the temperature down to 29 and then up to 31. The ones that cannot survive get killed, but the ones that can survive. Once the population builds up again, swing the temperature from 28 to 32 and so on until you have conditions like those on Luna. I have yet to identify anything on Luna that could sustain them chemically though, and the radiation from the Sun would be a massive obstacle, as well as the lack of water.
9 more posts in this thread. [Missing image file: blackorwhite.png]
Pic related
2 more posts in this thread. [Missing image file: bulb.jpg]
a lower resistance actually causes more heat when more current flows with the same voltage, shouldn't heat be generated with high resistances though since electron movement would be transformed to heat? the higher current should not heat the conductor if it can pass with almost no resistance.
15 more posts in this thread. [Missing image file: 1357964622721.png]
I'm a high school student thinking of becoming a math major in university. Pic related, I suppose. I am really interested in studying high level mathematics. Please convince me why I am so fucked.
1 more posts in this thread. [Missing image file: heating_stanley_3.jpg]
Hey /sci/, I have a Stanley Deluxe 90 (pictured) cast iron solid fuel cooker (burn wood = hot stove/oven). My question is that if I got it hot and then dumped a bucket of water on it, would that be enough to crack it or warp it significantly?
8 more posts in this thread. [Missing image file: 20060302.gif]
how would I plot 3|x-5|+8|y+2|=25 pic unrelated
18 more posts in this thread. [Missing image file: physics.jpg]
Hey /sci/, /g/ migrant here. I'm trying to teach myself physics over the summer, but I'm not sure where to start. Would it be best to get a book from my local library, or are there online resources for learning physics?






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