Science & Mathematics - 15 August 2007

Darwin's theory of evolution suggests that we descend from apes. While no strong evidence has been found, one may think of "backward compatibility", i.e. why organ transplant doesn't succeed from apes to men (which would be a simple corollary of the theory of evolution) to build a counter example and even strengthen the theory of evolution (from men to apes this time).

2007-08-15 13:00:13 · 8 answers · asked by Mohammed Whelly 1 in Biology

I have 120 audio book files on one CD. My MP3 player allows me to select by directory and then by the file. There are just 2 buttons I can use - next directory, and next file. It does not matter how I divide the files into differenct directories. Currently, I have all 120 files in one directory. This means I have to press a button 12o times to reach the last file. How can I minimise the number of key presses to ANY file?

2007-08-15 12:49:54 · 3 answers · asked by Hearts 1 in Mathematics

I want to simplify 2 sqrt5 / (sqrt2 +5)

I'm not sure what to do with the ()s.
Please help.

2007-08-15 12:49:23 · 3 answers · asked by Dude 3 in Mathematics

If you plug an electric fire in and touch the metal coil near the end junction can this give you an electric shock or kill you?

2007-08-15 12:44:31 · 17 answers · asked by colin050659 6 in Engineering

Hi,
I'd like ask for an explanation on the method of factoring equations with a number before the first variable. Something like 10x^2 + 15x - 10 for example, were x^2 is preceded by the number 10. Additionally, if it's not too much to ask, I'd like to request an explanation on how to solve 2x-xy^2. Thank you!

2007-08-15 12:43:27 · 3 answers · asked by Quasar 2 in Mathematics

What is Interventional Cardiology and is it invasive ?

2007-08-15 12:40:43 · 5 answers · asked by Anonymous in Medicine

I mean honestly if you look on the internet you can find cures that doctors let out for the drugs they give you so you could make an antidote. please give detailed answers

2007-08-15 12:38:19 · 6 answers · asked by Anonymous in Medicine

Why is the speed of light so special compared to any other speed.
why does the universe allow this speed and giving light the privalige to use it
some say light has massless particle properties.
if that were the case then gravity would have no effect on a massless object would that not be true..

2007-08-15 12:35:59 · 25 answers · asked by Anonymous in Physics

Do the antibodies made from the company Mederex cure cancer? Is this very promising to cure cancer?

2007-08-15 12:35:19 · 3 answers · asked by M m 1 in Medicine

Use elimination to solve each system of equations.

1. 6x-5y=27
3x+10y= -24

2. 11x-5y=80
9x-15y=120

3. 5x+3y=12
4x-5y=17

thank you so much = )!!!

2007-08-15 12:25:45 · 4 answers · asked by javier c 3 in Mathematics

There is no air on the moon and why is it that we have incredibly
powerful telescopes such as the hubble telescope that can see well past the moon but can see neither the flag nor the equipment left from the "moon landing" (shovels, land rover, etc.), or the tire impressions on the moons surface from the lunar rover.

2007-08-15 12:22:06 · 14 answers · asked by Anonymous in Astronomy & Space

Wiring my garage and want to run a small air conditioner, a couple light circuits and a pc. 75 feet from my 200 amp service. wiring it for 220. I have 75 feet of 10/3 with ground. Will this be sufficient?

2007-08-15 12:16:50 · 4 answers · asked by DrDave 7 in Engineering

2007-08-15 12:15:40 · 4 answers · asked by Anonymous in Earth Sciences & Geology

While on vacation, Kevin went for a swim in a nearby lake. Swimming against the current, it took him 8 minutes to swim 200 meters. Swimming back to shore with the current took half as long. Find Kevin's average swimming speed and the speed of the lake's current.

2007-08-15 12:15:02 · 8 answers · asked by Anonymous in Mathematics

in distillation, would increasing the heating rate affect the boiling point? why? explain in terms of vapour pressure and the pressure of the laboratory.

2007-08-15 12:14:54 · 2 answers · asked by Anonymous in Chemistry

2007-08-15 12:14:27 · 7 answers · asked by r d 1 in Astronomy & Space

simplify the expression.

(-z)^3 (3^4)

Isn't it already simplified because you can't combine -z with z.
Help?

2007-08-15 12:13:33 · 3 answers · asked by Anonymous in Mathematics

2007-08-15 12:13:09 · 6 answers · asked by Brandon 1 in Biology

away from global warming, if there is a place? I like the cold!

2007-08-15 12:10:50 · 5 answers · asked by Anonymous in Earth Sciences & Geology

How come the order of filling the atomic shells is so strange? For example, why does it jump from Ar (1s^2 2s^2 2p^6 3s^2 3p^6) to 1s^2 2s^2 2p^6 3s^2 3p^6 4s^1 for K? Why doesn't it first fill the 3d orbital? Also, from V (1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^3) I notice that it jumps to (1s^2 2s^2 2p^6 3s^2 3p^6 4s^1 3d^5). Why does one of the electrons just leave the 4s orbital and jump into the 3d orbital. Is it more stable that way or something? I don't see how it could be though... I mean, isn't a full orbital (i.e. 4s^2) more stable than a half-full one (i.e. 4s^1)?

Thanks for any help!!!!!!!

2007-08-15 12:08:39 · 1 answers · asked by Anonymous in Chemistry

NEXT THREE NUMBERS PLEASE
18,9,0,-9 . . .
6,8,12,18. . .
-11,-6,-1,4. . .
9,10,13,18. . .
1,7,19,37. . .

2007-08-15 12:08:18 · 3 answers · asked by Anonymous in Mathematics

A. From the Future of Human Race - Albert Einstein, who is the father of physics introduced the law of relativity, where he quoted that time travel is extremely possible if there's a vehicle that can travel in the speed of light. According to thousand documentaries, testimonies and sightings of UFOs’, these UFOs can travel in speed of light.

See: http://video.google.com/videoplay?docid=8242243689164201392

B. From other planets or stars of other galaxies.

On July 26, 1976, during Viking 1's thirty-fifth orbit of Mars, one of the photographic frames, taken in the northern desert Cydonia region, showed a mile long, 1,500 mesa that looked like a humanoid face. Rectangular patterns that represent civilization were also discovered on Mars. This theory then agrees that Aliens and UFOs are from other galaxies.

2007-08-15 12:05:56 · 12 answers · asked by Mr. Wizard 1 in Astronomy & Space

2007-08-15 12:02:06 · 4 answers · asked by generalche22 3 in Other - Science

??flatulism?? How to stop it .. where does it come from ??

2007-08-15 11:52:18 · 4 answers · asked by arizona953gb@yahoo.com 1 in Chemistry

2007-08-15 11:45:23 · 16 answers · asked by AntikristPrinceWilliam 3 in Physics

2007-08-15 11:43:58 · 9 answers · asked by Nano 1 in Zoology

What do you believe instead?
I also wanted to say that I've just passed the 1000 point mark! :D

2007-08-15 11:42:07 · 11 answers · asked by Anonymous in Biology

Imagine that you have been chosen as the biologist for thedesign team for a self-contained habitat, Space Station ECOS, to be assembled in orbit. It will be stocked with organisms you choose to form a self-sustaining ecosystem that will support you and five other people for two years. Describe the main functions you expect the organism to perform. List the types of organisms you would select, and explain why you chose them.

Please help!

Thank you very much!

2007-08-15 11:34:52 · 5 answers · asked by Anonymous in Biology

A friend of mine insists this is going to happen on Aug 27th because Mars will be 43 million miles from earth. I can't imagine this happening under any circumstances. Am I right?

2007-08-15 11:31:15 · 16 answers · asked by Hirise bill 5 in Astronomy & Space

I'm stumped on this question. I originally got 20 days as my answers, but that was incorrect according to my teacher. Could someone please assist me? Thank you so much!

"If a chicken-and-a half can lay an egg-and-a half in a day-and-a half, how many days will it take two chickens to lay twenty eggs?"

2007-08-15 11:30:11 · 6 answers · asked by sg88 1 in Mathematics