Other Sciences

since the penis is made for vagina and not the rectum i wonder if homosexuality is unnatural putting aside ethics or freedom and rights of such gays, is it an unnatural act and mentality for homosexuality , man erotic over man, woman erotic over woman one may say there is acts of such in the wild, but does it matter? that may also be unnatural also

I am not sure of the correct place to pose this question, thus I put it here. Is it scientifically possible to prove something is impossible?

What do people think of the accuracy of Wikipedia in science related articles? I read a study that said that Wikipedia's accuracy in science was comparable to that of Britannica. Others say that Wikipedia is inaccurate and unreliable. A few professors have allowed references to Wikipedia (but only if the reference is static). What do people think of the accuracy of Wikipedia in science? On a related note, what do people think the potential of Wikipedia is? Will its accuracy continuously increase, or will vandals and incompetents keep it low? Will Wikipedia become the ultimate dictionary of the future/repository of knowledge, or is it the predecessor of the Hichhic…

I seem to have this ability to hear certain wave lengths. I can hear the radiation coming from any TV set if the screen is totally white, and I can hear mobile phone microwaves at night. The mobile phone noise keeps me awake. Has anyone else noticed this noise? Pincho.

Does the inverse square law apply to a laser beam? I couldn't tell when I did it. It didn't look like it did. As I got farther from 1 meter, the diameter of the beam got bigger. After about 5 meters away, the beam didn't expand anymore. But I didn't measure the diameter accurately enough to tell what happened.

Someone asked me that if you could travel throug the time and i instantly said no. But thinking about it, yes you can travel to the time, if you could do some stuff. For example... if you invert all electromagnetic field and run your electrons spin exactly the opposite you´d be travelling to the time backwards... Thinking that you could build a machine that inverts the electromagnetic fields, then you enter in... spend one hour inside then you turn it on.... you´ll travel backwards 1 hour. Einstein could never bind electromagnetic fields with gravity.. i dont think is to hard (hypotheticaly) though everything responds to electromagnetic fields, gravity is …

Refrigerator magnets stick to refrigerator doors (duh, common sense, eh?), so the fridge must have an opposite magnetic charge to a fridge magnet. One is positive, the other is negative. But by that notion, two fridge magnets should both be the same charge, and thus should repel each other, yet they stick to each other. Why is that? EDIT: Btw, I put this in Chemistry because I learned about positive and negative charges in Chemistry class. If this is in the wrong board, please quietly move it to the proper one.

Just curious as to whether there are any subscribers to the intelligent design stance? Personally I think it's a bit like creationism in disguise and also smacks of sitting on the fence. Me, I support evolution. But of course I could be wrong and maybe we are all just a giant experiment in somebody/thing's petri-dish.

Is life ALL negative and positive? For example, does everything have an anti- to it? I was just thinking about it cause there is antimatter, anti bubbles, negatives in photos, so is it possible?

Ideas and strategies for terraforming mars. I have no serious backround in sciences above high school level but I had several ideas for terraforming mars and I would like any one with knowledge to the contrary of my ideas come forward so that I may know and adapt my ideas. 1) My first idea is that to increase the amount of gas trapped in mars's atmosphere we must increase the gravitational pull of the planet by increasing it's density, to do this couldn't we put a material on mars that is very dense that will increase of mars but the mass much more. I think this would increase mars's density and its gravitational pull so that it would hold more gases in and create…

If you have about 15 gramms of Iron Metal, how you can create from this, about 15 gramms of Iron dust? (I can accept that a small quantity will ''disapear'', durring the presidure) Thanks.

I'm B.S meteorology, so I guess I have a long way... Anyway, what degrees do you people have here?

You see satellites and the space station using solar panels to fuel themselves. Is it not possible to generate electricity in space. Knowing that if you spin something in space it spins forever unlike earth where it takes a force to move something. and a conductor cutting the flux in a magnet produces current. Unless I am missing some information, it should be real easy to produce a great deal electricity in space. So why do they use monster size expensive solar panels instead?

The system of notes is based on the fact that a certain frequency is taken, and in the next octave the same frequency, a multiple of two, is considered the same note. However, if we took a different multiplication, the notes would be in different frequencies. This means that objectively the notes are just a convention. Why, then, is it claimed that notes can be heard and distinguished from birth?

I want to charge like a super battery for blackouts and I want to make a rod attract lightning and put it into a battery how can I do this?

This thread was prompted in part by this...open challenge and that I'm currently working on my dissertation, which has clocked up more than 60 references so far. I've been quite strict in my sources, i.e sticking to what I feel are reputable journals e.g MNRAS (Monthly Notices of the Royal Astronomical Society), Astronomy and Astrophysics: a European journal, IOP et.c. My research has branched into (for me) unfamiliar territory such as experimental plasma physics, and simulation software and computational models for astrophysics. I've found that experimental data is harder to access over theoretical work, which is understandable, considering how prolific crack-potter…

Let me first say that this is not a justification for recent anthropogenic warming. The last 30 years is a bit too much and we should begin remedial measures. However, the reference below is interesting. http://www.sciencedaily.com:80/releases/2008/12/081217190433.htm It suggests that the world would be entering a new glaciation period, with glaciers advancing, and the whole world cooling, if it were not for early anthropogenic global warming. If this is correct, I am glad it happened. I would much rather live in our current relatively balmy conditions than in a new deep freeze.

I was watching some show a few years back that featured a roman water device. This device used the pressure of the water to push up some other water in a continuous cycle. They used it as a sort of fountain. Does anyone know what it is called or seen a diagram of it online?

hi everyone! I'm a translator, doing a translation of a scientific paper, and I need your help as specialists. Hope this won't be considered a flame here. Do you make any difference between strain and deformation in technical discussions, especially in scientific writing? I saw different usages, e.g., Wikipedia says strain is a geometrical expression of deformation, while Britannica uses them interchangeably. Is it correct for a scientific paper to say that "... deformation of ... is calculated..." or is it more accurate to use "described" or "characterized" instead? I often run into this issue in my work and don't know who I should trust. So, where's the trut…

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The rats are loaded with diseases some no cure if person gets rat bite.The rats for sone reason do not seem to get sick and immuned to most diseases .Yat the carry the diseases . Yet on the other hand insects do not seem to really carry diseases it is mostly insect venom that is problem to people.

Hi everyone! I got a small plasma ball off eBay in April. I have it on a timer so its on from about 7:00PM to midnight. Over time, I have begun to notice that it doesn't seem to be as vibrant as it used to be. Is there some component that will slowly die after awhile or after a certain amount of use, or is there something wrong with it?

Absolute zero has been deifined. Is there an established "Absolute Highest Temperature" in the universe? I imagine this was at the Big Bang, but is there a constant limit to matter and energy now?

would it be possible to spray liquid nitrogen out of a weed killer kind of back back ?? ad is liquid nitrogen hard to get and is it expensive???

"Buying a piezoelectric transducer can be quite expensive. Two different suppliers I looked at were Face International Corp. and Active Control eXperts. Their piezo-transducers sold for about $100 and $200 respectively. Buying piezoelectric cable is much cheaper. One supplier in the UK, Ormal Electronics Ltd., gave a quote of £2.75 per meter for purchases of more than 2000 meters. Another supplier in the US, Measurement Specialties Inc., sells piezo-cable for $8.00/m for more than 1000 m." http://www.linkedin.com/answers/Sustainability/green-products/SUS_PRD/444508-22603425 Piezoelectric materials like Quartz is a pretty common substance, …