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/sci/ Science & Math

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Most viewed threads in this category

6 more posts in this thread. [Missing image file: wade.jpg]
Anyone has this book in pdf? An Introduction to Analysis by Wade
10 more posts in this thread. [Missing image file: 1330616756020.jpg]
Why do your testicles go chilled after ejaculation?

Spivak 4th edition PDF

11 more posts in this thread. [Missing image file: 31ESrmEz0-L._SL500_AA300_[1].jpg]
anyone got a pdf of spivak's calculus 4th edition?
6 more posts in this thread. [Missing image file: 1338634591372.jpg]
5.74*10^17 electrons flow through a wire in 250 ms. What is the current in amperes?
1 more posts in this thread. [Missing image file: pia16164-43.gif]
Flashing thread
25 more posts in this thread. [Missing image file: volume_vs_mass.jpg]
If there was zero error in the experiment, how many points would be on the line? (meaning if the equation for the points was created). I'm thinking that ALL points will be on that line, but I feel like this is a tricky question. The other option is that "there will always be some points that do not go through the line even if there is zero error" I know that in real life nothing is perfect but the question seems to ask about a theoretical situation. What do you guys think?

Mastering Astronomy Access Code

0 more posts in this thread. [Missing image file: 1336358028527.png]
This is a shot in the dark, but I have an introductory Astronomy class and the teacher uses Mastering Astronomy to do the homework. Is there some keygen for access codes to this website or do I have to suck it up and pay the $50? By the by, I'm looking for an access code for Bennett et al., The Essential Cosmic Perspective, 6e
6 more posts in this thread. [Missing image file: 1347090289290.jpg]
>wearing my "May the d/dt (mv) be with you" community college physics club shirt >walking into steak n shake at 4 in the morning with friend for some late night coffee banter and maybe some studying >young girl my age with some friends standing at register looks at me and says she loves my shirt >I say "t-thanks" without even stopping head towards a booth I turned that steak n shake into a spaghetti warehouse that's the first time a female I didn't know has spoken to me in like 7 or 8 months inspite of my poor social skills why not celebrate a fellow autist engineerfag who has made it in one of the hardest social games of all time?
4 more posts in this thread. [Missing image file: 74396_164151676940324_299713_n.jpg]
Hey guy's I'm doing a HW assignment in Stats and I'm stumped on this problem. I'd really appreciate it if someone could explain how to solve it. A professor has recorded exam grades for 20 students in his class, but one of the grades is no longer readable. If the mean score on the exam was 82 and the mean of the 19 readable scores is 84, what is the value of the unreadable scores? Thanks for the help!
5 more posts in this thread. [Missing image file: 1283524250572.png]
What if Earth was 10 ft closer to the sun?
9 more posts in this thread. [Missing image file: 1348074176067[1].jpg]
is this possible?
4 more posts in this thread. [Missing image file: rock06.jpg]
What does /sci/ think of Geology? Enjoyable science? worth while to study? good cash? respectable?

Tesla's Flying Machine

2 more posts in this thread. [Missing image file: tesla the truth.jpg]
In a 1911 article from The Sun Tesla describes his flying machine: "Dr. Nikola Tesla leaned back against his chair at the Waldorf last night and talked calmly of airships without planes, propellers or any of the other gear of the now familiar aeroplanes hurtling through space at tremendous speeds or driving more slowly carrying great loads, and in either case always as safely as the most prosaic of wheeled vehicles." "...How about aerial navigation?" Dr. Tesla was asked. He considered for a moment or two and then replied with great deliberation: "The application of this principle will give the world a flying machine unlike anything that has ever been suggested before. It will have no planes, no screw propellers or devices of any kind hitherto used. It will be small and compact, excessively swift, and, above all, perfectly safe in the greatest storm. It can be built of any size and can carry any weight that may be desired" - The Sun, New York - 'Tesla Promises Big Things'

Star's death

19 more posts in this thread. [Missing image file: white_dwarf_by_I3a12C1.jpg]
so, /sci, i come with a question: what happens when a small star really dies? documentaries and school books always stop the narration of a star's life when it becomes a white dwarf, ending with a sentence like "...and in this form, the star will continue burning for several millions of years." But what i'm asking is: what happens when it really stops burning? what is left? is it left only a huge ball of heavy metals, since all the smaller atoms were melted together during her life?
22 more posts in this thread. [Missing image file: lovecraftb-day.jpg]
There is no evidence within the fossil record that we evolved directly (or indirectly) from any pre-human hominid on earth. We literally just appeared out of nowhere on the planet and took over everything. Just like an invasive species. Soocial evolution has also been disproved 100%? We did not socially evolve in any way, in fact the first civilization came fully formed right out of the stone age. There is nothing evolutionary about humanity on Earth. We are an invasive and unnatural part of the food chain which has reached apex predator status inside 300,000 years. Something unheard of. So, if we did not evolve within the natural conditions of the planet we inhabit, how did we arrive here?
7 more posts in this thread. [Missing image file: neverending tears.jpg]
Pick one: >You are made to understand, not told, the theory of everything. You are able to truly understand existence and all knowledge is yours. You will die immediately if you attempt to convey this information in any form. or >You are allowed to live a happy life with a beautiful family, a rewarding job, and make a meaningful, but ultimately insignificant impact on society Sadly I think I would pick #1. I want to know, and it doesn't exclude me from having a life knowing that knowledge.

Cat in the box demystified

1 more posts in this thread. [Missing image file: box cat girl.png]
Quantums finally explained http://www.youtube.com/watch?v=BrtIYIoN-EU
0 more posts in this thread. [Missing image file: physics.jpg]
Let's see if Sci can do grade 12 physics. A box weighing 450N is hanging from two chains attached to an overhead beam at angle of 70 and 78 to the horizontal.....find the tension forces
5 more posts in this thread. [Missing image file: 1318361695002.jpg]
O hai guize, just curious.. What causes gravity? Oh? You have no clue? Check and mate atheists..
1 more posts in this thread. [Missing image file: o2-customers-vent-frustration-after(...).jpg]
Hi, I have got a question, its for school. If 63.5L of oxygen at 18.0C and an absolute pressure of 2.30atm are compressed to 50.0L and at the same time the temperature is raised to 57.0C, what will the new pressure be? I got 9.25, but thats wrong(cant see why, since mastering physics sucks)

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