Other Sciences

Does anyone know how salty sea water is? Also, if i was to make up my own solution, how much salt would i need to add to what volume of water? Thanks for your help guys.

If there any reason why the earth's magnetic field lines up with the north and south pole? Nasa data indicates that seismic waves travel faster N-S than E-W showing that the center of the earth is structurally organized with respect to the poles. Did or does the high thermal gradient with the poles induce the magnetic field direction?

I recently remembered something I'd heard ages ago about the amount of times it is physically possible to fold any pice of paper. I think it was something like "you can only fold a piece of paper 8 times". This is an incredibly vague statement... I mean couldn't the paper be astronomically big? Or thick? And what classes as a fold? I didn't know what category it belonged in. Anyone heard this before or something similar? Anyone know the answer?

me and my dad recently got into a heated debated on wether gravity or centrifugal force holds the earth to the sun(or a solar system or a galaxy or a universe). i said that gravity was the major factor, but centrifugal force is a very small factor. he said that centrifugal force is the major factor and gravity is a almost non existent factor. am i wrong?! he felt like i was being sooo stupid with my idea and i vice versa.

Does everything in the universe affect every other thing in the universe? If a butterfly flaps its wings in South America, will something across the universe feel that effect in some small way, directly or indirectly, no matter how long it might take? Electromagnetic radiation and the force of gravity will travel in all directions forever until they react with something. That something will feel the effects of that reaction, will change in some small way, and will in turn send out its own electromagnetic radiation and gravity. Is my typing right now creating a chain of events that will eventually be felt on the other side of the universe? Is you mouse click going to be ev…

I am planning on taking a 6-12 month trip to Honduras, Central America. In a region near where I am going, exists a ravine carved in a mountain by a river. The great part of this ravine is that it is 5 miles long, and is virtually untouched by science. The second greatest thing about the ravine is that it is a sub-tropical/torpical biome and is surrounded by grassland for hundreds of miles... Now if you dont know where I am going with this yet, I plan to fully explore the ravine and document the species which reside in it. I plan to find at least some new uniquely evolved insect species in the ravine, and anything bigger would be a divine gift! What I need though,…

I typed this up at random. My opinion on theoretical sciences. Probably belongs under humor. Don't shoot me. "Move over, botany! Screw you, quantum mechanics! There's a new red corvette in town.. yes, that's right, the wonderful new science of HYPOTHETICS!!! Wow, watch what it could do! We can prove stuff exist just because we say they exist, say that the moon is green, and even BREATHE NITROGEN! WOW! SHOW US MORE! Wow, listen to these TESTIMONIES: "Well, ever since I started teaching hypothetics to my highschool science class.. well, I guess my life just hasn't been complete, I mean, at one poin…

It's that time again and I'm at a loss this year. My daughter has shot down everything I have suggested so far as either being "too dangerous, or illegal". We are already committed to something in the field of magnetics. ie: a Maglev train (too simple) a Lifter, etc. Any ideas? I have a decent supply of Neodyum (sp) magnets on hand already and a few relatively stout AC electromagnets (700-900 lb cap. variety). Several transformers from Tesla coils & Jacobs Ladders, and a slew of other goodies that might be useful. If not I'm more than willing to get whatever we might need. So, who has ideas. Mind you it needs to be something prety impressive. I don't need to levi…

The 2005 Ig Nobel prizes were awarded on th 6th of October in a ceremony at Harvard University. There were some pure gold winners, my favorite was for Literature. The Internet entrepreneurs of Nigeria, for creating and then using e-mail to distribute a bold series of short stories, thus introducing millions of readers to a cast of rich characters -- General Sani Abacha, Mrs. Mariam Sanni Abacha, Barrister Jon A Mbeki Esq., and others -- each of whom requires just a small amount of expense money so as to obtain access to the great wealth to which they are entitled and which they would like to share with the kind person who assists them. There were a few Australian …

i was at a loud concert of some sort. The music is so loud it temproraily damages your ears (obviously in the long run more permenantly if exposed too much, but thats not really relevant to the concerning issue). This of coarse makes it harder to hear the music. I realized if i lightly plugged my ears, i was shielded from the full volume, and yet what i did hear seemed to be much clearer music. I wondered if this had to do with the soundwaves using my fingers as antenaes, and since sound travels faster (and more efficiently?) through a solid (my fingers being more solid than air). If that is not in any degree really correct, tell me, but if my deduction is right . . .…

Are there any good web sites talking about the possible dangers of domestic electric circuit? For instance, the effect brought about when neutral wire touch the metal cases accidentally. I've been searching the howstuffworks.com for several times, but I could not find what I want. What key words should be typed? I found many irrevelant web sites, some are advertising while some give concise but little information. May anyone help me?

Can you conduct scientific research over the internet and have it published in a peer-reviewed journal? I was thinking about a psychology research project that I have always wanted to do involving IQ, and then I thought about how interesting it would be if it could be done over the internet. Does anybody know about other research that has been done over the internet and published? Does anybody know anything about how internet research might be done?

Let's say that I have an imaginary planet with the same mass as earth, and it's completely smooth. No indentations, no obtrusions, nothing, just a large rocky ball. And now let's say around this planet, for some reason I build a huge ring around it, and once I finish building it, I remove the supports that hold it up. The ring is equidistant at every point from the planet at exactly 1 kilometer above the surface. What does the ring do, then? Collapse, remain stable, start to turn, or just stay still?

A New Manhattan Project for Clean Energy Over the past year many luminaries have made clarion calls for a concerted effort to solve the energy crisis. It is a crisis, with 300 million middle class Chinese determined to attain the unsustainable lifestyle we have sold them. Their thirst for oil is growing at 30% a year, and can do nothing but heat the earth and spark political conflict. We have been heating the earth since the agricultural revolution with the positive result of providing 10,000 years of warm stability. But since the Industrial revolution we have been pushing the biosphere over the brink. Life forces have done this before -- during the snowball e…

what i wanted to tell is, scientific community should ask questions instead of defending evolution, such as why only biblical creationist should be taught in schools why not islamic or hindu? amerika is a secular country every theory then should be taught. such questions should be asked, by the way i am from india and we have no creationists here, not a single and in our schools we have evolution every year! and no one here challenges evolution, in our syllabus evolution is cumpolsary, if you dont read it you lose the marks :D well back to point this is what i got from http://www.icr.org/index.php?module=articles&action=view&ID=1842 ==========================…

We know the transformation of messages in our brain is thro' electric signals. so whether there is magnetism around our head?

I'm not sure if this is the best place to post this question, but here goes. I'm trying to find out the percentage of oxygen content in the atmosphere for a given temperature, altitude and relative humidity and how that oxygen content percent changes as the temperature changes (with the relative humidity percentage staying the same) the fixed relative humidity is 53%. the altitude is fixed at sea level. thanks Andrew.

Why do we need airplanes, buses and trains to take us places? Since the earth is rotating couldn't we just take some sort of spacehip to the outer atmosphere of our planet, then at certain time when the rotation of the earth is at the point of your destination, drop the spaceship vertically at that point. That would save alot of fuel and headache. I hate flying! Are there flaws with this idea? Any inputs or ideas why it wouldn't work?

Hello all! Could not somebody help me advice? I'm looking for typical official duties for employees of research laboratories (postgraduate and associate researchers, technicians, professors ect.)... Like instruction... Something formal, like "X is obliged to observe safety precautions regulations, to participate in educational programs". I would like to know a concrete circle of duties in west laboratories. Thank you! Vadim

Many pictures on the news show the discharge ends of the pump pipes at 10 -if not more- feet above the surface. The brutal flow reduction and increased amount of fuel makes no sense. And that pumping operation is conducted by "experts" ? The discharge ends should be as close as possible to water level to be efficient, probably doubling flow. SHAME ! -The land of waste- Miguel

Hi. The first; what size of a mylar mirror "umbrella" held by a reasonably far positionable satellite could produce a ~500 Km Ø shadow on earth? And the other; would such shade cool the sea surface a few degrees if projected several days on a path, enough to somewhat decrease the intensity of a hurricane ? Miguel

NASA today, mentioned about going to the moon (heard it before). Then i read that they want to make a 125tonne heavy lifting launcher... Why don't they just make a small 50tonne lifter (the shuttle does 20 i think), and have it dock at the ISS, then send up the next 50tonnes and assemble the whole thing in space? At least it will maintained by the existing ISS crew. Include some additional thrusters to keep the whole thing 'up there'. Maybe no need for the 50tonne part to even be connected to the ISS - just have it floating around close by (tethered), so the ISS crew can go over and look after it. If a 125tonne launch fails, then all is lost. 125tonnes s…

hey i am writing up my prac report i have a question about error caluclation. if i take the average of serveral measurements (instead of drawing a graph), and these measurements are [math] 147 \pm 3 [/math] [math] 146 \pm 3 [/math] [math] 143 \pm 3 [/math] [math] 145 \pm 3 [/math] [math] 146 \pm 2 [/math] i get ther average to be 145 (to 3 sig. figs.) , now how do i calucalte the error? do i use a 95% confiddence interval or somethign else? I have on method i think might work, but it gives a very big error compared to the ones for the orginal measurements: this is the method: [math] ( \delta avg)^{2} = ( \delta m_1)^{2} + ( \delta m_2)^{2…

This is something you probably have noticed, but if you have an incoming call while your mobile phone is close to some speakers, you will hear some jitter in the speakers, which can get relatively violent depending on their quality and magnetic shielding. You can conclude that the presence of strong electromagnetic fluctuations in the radio frequency range will induce electrical fields in the electrical-magnetic system. The question is (knowing that light and radiowaves are both electromagnetic waves simply of different frequencies), why is it that if you shine visible light, infared, or UV light onto the speakers, you will definitely get no response, even if the ligh…

im a newbie(a student) in science n tech... but sometimes i get strange doubts...i hope ull understand my doubt :cry: my doubt is.. the color what a person sees, is it the same as another person sees it? what i mean to ask is..for eg: i see a color.. say white.. and my eye sees it in a format say X, and if another person sees white ,will it look like X itself or something else.. people identitify a color by name..but not by a format. from our childhood we call a particular format by a name..but is it same in everyone's view? i dont know how for u can understad my doubt...and also i have no (very very less) knowledge abt science...i hope u people help me..…