From 2013/05/23 04:00 to 2013/05/23 10:00 (0)

From 2013/05/23 10:00 to 2013/05/23 16:00 (0)

From 2013/05/23 16:00 to 2013/05/23 22:00 (0)

From 2013/05/23 22:00 to 2013/05/24 04:00 (1)

From 2013/05/24 04:00 to 2013/05/24 10:00 (0)

From 2013/05/24 10:00 to 2013/05/24 16:00 (0)

From 2013/05/24 16:00 to 2013/05/24 22:00 (1)

From 2013/05/24 22:00 to 2013/05/25 04:00 (1)

From 2013/05/25 04:00 to 2013/05/25 10:00 (3)

From 2013/05/25 10:00 to 2013/05/25 16:00 (0)

From 2013/05/25 16:00 to 2013/05/25 22:00 (1)

From 2013/05/25 22:00 to 2013/05/26 04:00 (1)

From 2013/05/26 04:00 to 2013/05/26 10:00 (3)

From 2013/05/26 10:00 to 2013/05/26 16:00 (7)

From 2013/05/26 16:00 to 2013/05/26 22:00 (7)

From 2013/05/26 22:00 to 2013/05/27 04:00 (29)

From 2013/05/27 04:00 to 2013/05/27 10:00 (26)

From 2013/05/27 10:00 to 2013/05/27 16:00 (25)

From 2013/05/27 16:00 to 2013/05/27 22:00 (50)

From 2013/05/27 22:00 to 2013/05/28 04:00 (34)

From 2013/05/28 04:00 to 2013/05/28 10:00 (21)

From 2013/05/28 10:00 to 2013/05/28 16:00 (18)

From 2013/05/28 16:00 to 2013/05/28 22:00 (24)

From 2013/05/28 22:00 to 2013/05/29 04:00 (25)

From 2013/05/29 04:00 to 2013/05/29 10:00 (21)

From 2013/05/29 10:00 to 2013/05/29 16:00 (26)

From 2013/05/29 16:00 to 2013/05/29 22:00 (45)

From 2013/05/29 22:00 to 2013/05/30 04:00 (38)

I have to learn Calc 1 in a month via self-study. I have about 4 hours a day to do this. Any tips on a self-study approach? My current plan is working out of a textbook I have and watching 10-20 khan academy videos (and doing the exercises) a day. Tips very appreciated

How many volts would it take to A) Kill a person and B) Completely incapacitate a person It's for an experiment.

Is this true?

What do you think the chances of this happening are, /sci/? http://hplusmagazine.com/2010/11/28/total-gender-change-within-decade/

Sci I have trouble with math. The level before algebra trouble me however when it comes to anything below those levels I am a wizard. >at 21 is it extremely difficult to learn algebra >has anyone else done this ON HERE >when you start mixing letters and numbers I just get so confused with all the formulas.

Are there someone who study or experiment natural chemistry? Its field is very small comparing with others..., but very interesting I think! I hope to talk with about it.

Sup /sci/. Having problems understanding the proof of Hippocrates' Lune: The center of the circle on which the arc AEB lies is the point D, which is the midpoint of the hypotenuse of the isosceles right triangle ABO. >Therefore the diameter AC of the larger circle ABC is \sqrt{2} times the diameter of the smaller circle on which the arc AEB lies. Consequently the smaller circle has half the area of the larger circle, and therefore the quarter circle AFBOA is equal in area to the semicircle AEBDA. Subtracting the crescent-shaped area AFBDA from the quarter circle gives triangle ABO and subtracting the same crescent from the semicircle gives the lune. Since the triangle and lune are both formed by subtracting equal areas from equal area, they are themselves equal in area. I greentexted the part I'm having trouble understanding. Obviously, if you set AO = BO = 1, AB will equal \sqrt{2}, but I don't understand why it follows that AC = \sqrt{2}AB. Would anybody please be so kind as to point me in the right direction?

I regard consciousness as fundamental. I regard matter as derivative from consciousness. Everything that we talk about, everything that we regard as existing, postulates consciousness.

im a biology post graduated student making a research about marine fish farming. im happy because im helping to make a sustentable food source for the future, it probably will end as wrong as cattle. I had an economy class, the person talking was all hype about people interdependence and how is better to export than self consume, and all the horrors of sum zero. i asked about the malthusian catastrophe and he said that is not longer valid at this age. and that all the research will prevent such event. he also said that we are not heading to a new dark age where companies own us because they own the research and tech. what do you all think?

who here studies geology?

If the sun releases light in all direction, and water reflects light. Then how come in a completely illuminated area of water, you can only see a patch of the sun in one spot. I'm simply curious as it has been bothering me ALL day long.

If an 18 year old wanted to refresh his knowledge of Algebra, sufficiently learn Trig, Pre Cal, and enough calculus (for medical school), could this 18 year old do it in approximately 980 hours?

Is it proper to use a number as a variable?

I'm reading up on Organic Chemistry 101 and I understand the concept of chiral centres, but apparently citronella (pic related) has one and I cannot understand which carbon atom it would be. I immediately rule out any with a double bond, right? So that leaves maybe the 3rd carbon along? But it's joined to a methyl group, a hydrogen, and two CH2 groups... This isn't a homework question, I obviously already have the answer, but could /sci/ explain what I'm missing here?

what would be the ramifications if SETI found a regular complex non random signal?

http://www.youtube.com/watch?v=NkWTrcwHaMI&feature=plcp >"Google Hangout" about Quantum Computers >Streamed live on youtube >Starting in 8 minutes >No excuse not to view Enjoy

What computer does /sci use? I'm saving for a MacBook Pro, I'm starting college in August.

When talking about variation, in something like: y ? x y ? x^n y ? 1/x y ? 1/x^n y ? ?x y ? 1/?x How do you work out changes to y if x is altered, say for example, x is doubled or x is reduced by thirty percent? Would you sub in values or is there a proper method to calculating percentage change for variation?

Fact: The Sahara Desert is caused by the Nile River. Discuss.

Does water have stored energy? Could I heat up a boiler full of water with electricity and expect to produce more energy than what was consumed to heat it? What if the water was pressurized before I began to heat it?