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/sci/ Science & Math

Threads added between 2015/07/01 and 2015/07/08

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Most viewed threads in this category

6 more posts in this thread. [Missing image file: ]
Who /psy/ here? Do you think it's possible to make inferences about someone's personality by what sort of pet they own? For example, are cat-owners more likely to be autistic or sociopathic?

New Horizons Hype

145 more posts in this thread. [Missing image file: ]
12 days to go! http://pluto.jhuapl.edu/ >Each of the spots is about 300 miles in diameter, with a surface area that's roughly the size of the state of Missouri. >Scientists have yet to see anything quite like the dark spots > their presence has piqued the interest of the New Horizons science team, due to the remarkable consistency in their spacing and size Civilization on Pluto confirmed. Where will you be when New Horizons invades the colony?
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Does /sci/ take any supplements or vitamins?
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>corporate talks about "changing long-term strategy" >starts laying of PhD chemists left and right >drops an entire branch of process & biologists >adopts stupid new "efficiency-based strategy" that involves hiring temps more frequently >expects temp work to equal that of a seasoned 10 year employee with a doctorate and very specific development goals fffffffffffffffffffffuck pharma
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Why don't we do surgery to cut away the infested part with herpes and put new skin there?
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what does /sci/ think Twitch plays Large Scale Deep neural net ?
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what do people experience whose brain functions completely stopped but came back? what does being dead feel like /sci/ ?
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Medfags, biomed fags, bio fags, mech fags, biomech fags, and fags in general, I've a quesiton for you regarding heart valves. The image shows common types of mechanical heart valves and their flow profiles. Apparently, tri-leaflet heartvalves appear to be most ideal because their flow-profile resembles that of nautral heart valves; the central 'jet' of current thru the valve is greater than in the others, so there's not as much sheer stress or turbulance created by the current passing thru the valve. This is good because it's not conducive to platelet activation; too much stress on the blood supply increases likelihood of blood clotting. Still, patients with mechanical heart valve implants generally require treatment by some sort of blood-thinner; but lower dose for more ideal valves. My thinking is, if bi-leaflet valves are more ideal than tilting-disk and ball-cage valves, and if tri-leaflet valves are more ideal than bi-leaflet valves, why not simply add more leaflets to produce more ideal flow? thanks, /sci/

Where is my life going?

5 more posts in this thread. [Missing image file: ]
Besides the whole "a degree is not worth the debt" advice, I've heard that sysadmin is a reputable profession to pursue. (Other scientific question) Is it humanly possible to juggle sports year round, classes, and a job in college? Or will I need to make a clone
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What lasers does sci have? Currently owning a 70 mW green laser, fun little thing, can shine on empty office buildings kilometers away and you can see the beam as it goes through the air. Pretty fucking bright though, ordered safety glasses.

How can one protect themselves from amateur computer/phone fags

11 more posts in this thread. [Missing image file: ]
So some douchbag and I got in a disagreement and now he has sent my cell number to many people who keep calling me. How can I stop this? and I think this person uses a fake phone number, but the area code is in mine. Is there any way to determine where he is calling from? Can people discover personal information by using my phone number? How can I stay safe from this? Pls guys, respond.
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Why do they wrap it up like this?
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Hi /sci/ 19 year old here. I want to relearn math. All my life, its just been plug and chug and having algebraic definitions shoved down my throat. And although brute forcing university math is still possible. I feel I'm not getting anything useful out of it. Can anyone point me to some useful courses/books I am particularly interested in the fields of topology and number theory (mostly number theory)

New Horizons Anomoly Edition

7 more posts in this thread. [Missing image file: ]
The story so far: 2006 New Horizons is launched 2000-2015 Traveling at 16-20 km/s through space April 9 First image of Pluto at better resolution than Hubble. The first surface feature of Pluto is detected, a white patch at the pole. June 22 Images are taken of one full rotation of Pluto, one side is significantly darker than the other. All moons are visible. Colour images show Pluto to be distinctly red/brown while Charon is grey. July 1 Higher resolution images show a row of regularly spaced, mysterious dark patches. July 4 An anomaly interrupts communications. July 5 New Horizons operational after tuning it off and back on again. Only 8 days to go til closest reproach! Then it's off to the Kuiper belt.

mental imagery stuff

8 more posts in this thread. [Missing image file: ]
So when people aren't interested in technical/abstract/stuffy/boring literature, is that because they don't visualize anything when they read it? I'm not such a visual thinker myself but apparently many people "see" things in their heads when they read stories/novels. So I figured this might be different for technical literature, and this might be a reason for people not to like it. What do you think /sci/?
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What went wrong?
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fite me

Physics math

10 more posts in this thread. [Missing image file: ]
So 6', falling at a tilting angle, weighing 100lbs. Can someone please do the math for me? I'm curious because one of these, except fully incased and filled, fell and crushed my hand and i'm curious as to how much it weighed accounting for the force of gravity in the fall. And by tilting angle, if you don't know, I mean it just fell sideways, like if it were a plank that just got pushed over.

Quantum Mechanics Interpretation

14 more posts in this thread. [Missing image file: ]
Hi /sci Wanted to let you know my idea for an interpretation of QM. I always felt uncomfortable with the copenhagen interpretation, because it states that a wave "collapses" when oberserved, but there is nothing that distinguishes an observer from just another system. Being an observer or a measurement gets some kind of magical power. i think theres an easy way around this. when two quantum systems interact they form another system, which is at its whole described not by the states of the individual system, but by its own states in a new combined basis. An example for this would be a system of 2 electrons that couple to a spin 1 or 0 system with a combined spin and wavefunktion determined by clebsch gordan coefficients. Now say one electron is an observer. Its own state would be defined as pure either up or down. Then it measures the other electrons spin. The waveform of that other electron collapses and a fully derermined system is formed depending on the outcome of the measurement. From the outside the system is still in a superposition. So assume for a distant observer everything is always in a superposition of all possible states and the measuring process is just the process of coupling two systems from an inside point of view. i think this is a concept not to far from both the many worlds an the copenhagen interpretation, but somehow more elegant. Probably someone thought of it already. Is there any inconsistency with the math? What are your thoughts /sci?
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What's your faviourite function /sci/?

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