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/sci/ board - Science & Math - March 2014

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Most viewed threads in this category

http://www.theepochtimes.com/n3/466683-how-a-massive-hole-in-space-3-5-billion-light-years-across-co

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what does /sci/ think of this? pic possibly related?

https://docs.google.com/forms/d/1mTd9Ap1v48Vlb4Wjk-GT5FcOzLEqOMoWUFaUsMQWKDg/

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https://docs.google.com/forms/d/1mTd9Ap1v48Vlb4Wjk-GT5FcOzLEqOMoWUFaUsMQWKDg/ Thx :D
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https://www.youtube.com/watch?v=jEs0QkHDU8w&list=PLKaMVzmGcqBJmNWlBMAw9hjsfyL11vwEE
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Why does Murika Dislike geography?

trouble understanding concept of osmosis

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osmosis, isotonic, hypertonic, hypotonic. so osmosis is like, the movement of water? and isotonic means the concentration is like um like the same inside and outside of the cell, so water isnt moving and hypotonic means there is more concentration inside than outside, so water moves inside and hypertonic means the opposite... so like... if you are overhydrated, water is moving inside the cells and the cells burst and you die, and like if you are underhydrate watrer is moving outside the cells and you die is my understanding correct????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? i have an exam soon dont want to fail
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Hello everyone, I am studying about Raman imaging on semiconductor materials. Currently I am studying about Strain and Stress and how that can be detected with Raman spectrometry. There is however a point which is not clear to me: An example is given for a material that is assumed to have strees sigma_xx uniaxial and aligned along the <100> crystalline direction. Now it says that for pure backscattering from a 001 surface only the omega_z mode is probed. What I don't understand is why it says <100> at first and then that backscatterign is from 001? I saw that again also on another example. Anyone any idea that might help? I would really apprieciate it..
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:^)
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how does /sci/ feel about doing all of the slave work, while men like Edison and J.P Morgan take all the credit?

One of these things is not like the others...

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Walked in to an old bookstore in Pittsburgh. Had to take a picture.

The Astronomy Picture of the Day

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M78 and Reflecting Dust Clouds An eerie blue glow and ominous columns of dark dust highlight M78 and other bright reflection nebula in the constellation of Orion. The dark filamentary dust not only absorbs light, but also reflects the light of several bright blue stars that formed recently in the nebula. Of the two reflection nebulas pictured above, the more famous nebula is M78, in the image center, while NGC 2071 can be seen to its lower left. The same type of scattering that colors the daytime sky further enhances the blue color. M78 is about five light-years across and visible through a small telescope. M78 appears above only as it was 1600 years ago, however, because that is how long it takes light to go from there to here. M78 belongs to the larger Orion Molecular Cloud Complex that contains the Great Nebula in Orion and the Horsehead Nebula. apod.nasa.gov/apod/

Bill Nye the Science Guy to Rescue Malaysian Jet

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>Bill Nye the Science Guy has developed a diarrhea machine for the Godzilla Jesuit and insists on shooting it at him to cause the Jesuit to release the jet from his anus, to try and save the people on the Malaysian jet. He has suffered some serious injuries in the process of making the device that will be used on the jet, to save the passengers. http://www.youtube.com/watch?v=JSbxEU-c8iA
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How do I pick up a cute girl in a quantum field theory class?

Engineering Physics a viable major?

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Are there any Engineering Physicists on /sci/? I'm more interested in doing EP because EP majors take higher level math and physics as opposed to Mechanical Engineering, but how do job prospects compare between the two fields?
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So, when was the last time a child prodigy was responsible of an important breaktrough in science? They seem to be popular nowadays, but i donĀ“t recall them contributing something to remember
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Do we add the moment of inertia of the platform in calculating the torque of the system? Is the total kinetic energy of an object its linear kinetic energy and rotational kinetic energy together? Under what circumstances are we to use parallel axis theorem? perpendicular axis theorem?
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Anyone on here in drug design? What's it like? Is a masters in biotech the way to go? Because that's what I'm thinking.
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This is a comment from Reddit: "My favorite way to "picture" infinity is a library with an infinite number of books. Half the books have red covers and half have blue covers. One day a man comes in and checks out all the blue covered books (ignore how he'd get to them all to remove them or get them out the door etc. just play along). Despite "losing" half of its books, the library still has the same number. Infinite. Also a good demonstration of why infinity is a concept not a strict number." It sounds wrong to me, but I don't know enough about math and infinity to convince myself that it is actually wrong. Reddit is a retarded cesspool of unsourced and dubious information. Can /sci/ show me whether I am right with my intuition or that this comment is actually correct?
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What are some interesting topics in physics that are currently being worked on?
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If the universe is infinite, or just one of many in a multiverse, then shouldn't literally everything be possible? Shouldn't there be a universe made up entirely of pop, a god, a fat woman the size of a galaxy that floats through space and eats quasars? If "infinity" is a thing, then why hasn't an infinitely large Acme anvil fallen on the entirety of existence?
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What exactly is the universe? Is it all the galaxies combined and all the emptiness between them? Also general space thread
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