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/sci/ board - Science & Math - August 2014

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Most viewed threads in this category

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neat https://maps.google.com/maps?q=kennedy+space+center&hl=en&ll=28.586047,-80.651232&spn=0.00093,0.001743&sll=37.023002,-76.292459&sspn=0.433089,0.892639&t=h&z=20&layer=c&cbll=28.586056,-80.651203&panoid=_-Be6nNXFZeCWRIVGA342g&cbp=12,285.93,,0,6.92
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Anyone here have much experience with finite element analysis? I have to create some models involving some highly nonlinear material behaviour and geometry that changes over time. I've had experience using Strand7 and ANSYS before, and apparently both are capable of doing what I need them to do, but I'm not entirely sure which one to use. Strand7 has a much nicer interface and is easy to use, but I think ANSYS is a lot more customisable and allows you to edit a lot of the functions and material behaviours using Fortran. Any recommendations? Basically it needs to be able to model: >Nonlinear stress-strain interaction >Nonlinear creep >Shrinkage >Material fracture >Heat flow

help needed

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I need help with this. I can use solver to get the answer but it just does not feel right way to do this one. I'm certain there is smarter way to do this
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CLASSES START UP AGAIN TODAY TIME2LEARN Are you excited /sci/? What class are you looking forward to the most?
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So what would be the most expensive or difficult part about going back to the moon besides funding?
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I got a weird question. After I solve this problem; f : [0,1] \rightarrow (0,\infty) , f(0)=1 \int_0^1 f(x)^3 dx=\int_0^1 f'(x)^3 dx=\frac{f(1)^3-1}{3} I end up with f(x)=e^x but e^x isn't [0,1] \rightarrow (0,\infty). Can I arbitrarily decide that my function has that specific range? What's the correct notation to do that? Is it allowed?
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Hey /sci/, ITT let's share our infographics, charts, interesting stuff. pic related
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How much do you guys know about NOAA? Specifically in terms of career potential with them. I was going to join the Coast Guard but was denied based on medical history but was told to check out NOAA because they work so closely with the USCG. I'm graduating soon with a degree in Bio and a minor in Math so I wanted to get some information about them to see if I'd like it.
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Is this school any good for science or am I about to waste my life savings?
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got a C in general chemistry instructor was a foreigner and couldn't explain shit i had trouble converting word problems into equations and evaluating them am i screwed for g chem 2?

What does /sci/ think of this show?

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If light has no mass, how can a black hole prevent it from escaping via intense gravity?
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How does /sci/ into literature when libgen fails?
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http://voxday.blogspot.de/2011/12/exposing-injectors.html >Some vaccines make sense. Others don't. That is the reality that the pro-vaxxers will have to get their heads around before anyone in the vaccine reality camp will pay any attention whatsoever to their emotion-laden rantings. Consider this: the fact that children need water in order to live is not a rational basis for drowning them on behalf of their health. >And just to be clear, I think it makes sense to vaccinate for tetanus, polio, and after the age of four, measles. It may make sense to vaccinate for some influenzas if a sufficiently deadly variant were to arise and begin spreading. But it makes no sense to vaccinate against most of the other diseases which are so seldom fatal and are so easily treated without hospitalization. Thoughts?
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Assuming the distance from your thumb to your eye is one meter, while holding out your thumb. The apparent size of both the Moon and the Sun are both the same, despite the fact that in reality they vastly differ in size. We know this because the Sun is also vastly more distant than the Moon. They both appear to be the same size as the thumb With an input of size, is it possible to calculate, using an equation, the distance to an object by using the size? Is the reverse of this equation possible? This is quite hard to put into words, I have tried drawing a picture.
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Anyone up for a little mental problem? Could someone differentiate/derive this? I've been stuck on it for hours.
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Sort of a weird request. I'm doing a project promoting the pursuits astrophysics and would like to create the piece on a related print out. I'm wondering if there is, at any astrophysics research institute, any sort of data or graph that is printed out of a large plotter. Large is the best, but small can work too. I can always blow it up. I'll need to try and track one down and get my hands on it, but the first step is knowing what I'm looking for. Thanks for your help!

Plasma

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Retard question; I'm having difficulty wrapping my head around plasma. It's a form that matter can take, but all images I see are of electric bolts or a few that look sort of like a flame. So, my question is, since you can help someone imagine what solid is (it's generally hard, it can crumble, shatter etc), what liquid is (it pours, drips and sloshes) and what gas is (it sort of floats and you pass through it with ease), how would you describe the physicality of plasma?
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if science is so great then how come they cant even make a way to do gambling and not lose?
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From my philosophy text: "The error of materialism is that of accepting J. J. C. Smart's claim, 'everything should be explicable in terms of physics'... there are, as Ludwig Wittgenstein said, many forms of life, and it is a philosophical error to assume that there must be one model to account for all of them." I completely disagree with this. How can such an argument hold when we have theorized and experimentally determined the truth of fundamental particles from the atom on down? QM may yet be incomplete, but that doesn't mean horses are fundamentally made of different stuff than rocks or that the natural sciences don't have an explanation that accounts for the existence of both. pic unrelated - just an ochem gag
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