Science & Mathematics - 22 July 2006

I would be interested in finding out any properties which titanium holds over other metals which is only for titanium. I am trying to make a new type of tennis raquet and believe that titanium or an alloy may be the answer?

2006-07-22 11:03:02 · 7 answers · asked by Hunkydory 1 in Engineering

2006-07-22 10:59:52 · 9 answers · asked by ? 6 in Medicine

2006-07-22 10:49:42 · 8 answers · asked by smallspy 1 in Mathematics

We got lots of amazing things from science and engineering, but every one of them conforms to the various physical laws that we formulated along the way. To me that means it's not possible for interstellar travel to be achieved in any useful way.

OK prove me wrong - give me a scheme that works. But to make it worthwhile:

1. the travellers have to arrive alive, and they have to remember why they came. If nipping through wormholes squashes you into putty, no deal.

2. the travellers who arrive have to be the same ones who set out, not some parallel or entangled identical copy, and not the Nth generation descendents who have all evolved back into pondslime.

3. putting them to sleep for a buzillion years is cheating. Moderate snoozes are lame but acceptable.

4. no breaking the laws of physics, unless you have a good reason why you're so much cleverer than anyone else.

5. But you can invent anything you like as long as is theoretically possible

2006-07-22 10:48:31 · 11 answers · asked by wild_eep 6 in Astronomy & Space

Tell me all about them, how are they created, how are they destroyed, how do they work, what's their gravity, how big can they be, what's their density...

2006-07-22 10:45:57 · 16 answers · asked by Maaka 4 in Astronomy & Space

2006-07-22 10:40:07 · 8 answers · asked by EMAILSKIP 6 in Earth Sciences & Geology

That makes me also wonder, what's the light?

2006-07-22 10:39:25 · 7 answers · asked by Maaka 4 in Other - Science

Write a true equation using only:
1
0
e
i
pi
and any operators you wish.

2006-07-22 10:39:18 · 6 answers · asked by esskier 1 in Mathematics

2006-07-22 10:33:40 · 9 answers · asked by Am 4 in Physics

A weblink will work but instructions would be great ^_^

2006-07-22 10:22:12 · 4 answers · asked by sibilant_ghost 2 in Earth Sciences & Geology

Happened in Roswell, New Mexico and believed aliens crashed there and some people oprated aliens, I dunno something like that.

2006-07-22 10:21:14 · 11 answers · asked by =)) 3 in Other - Science

So, maybe Humans can produce electricity after all…
I remember reading a Q asking if it was possible for a human to wear a suit to produce electricity from what they do everyday (move).

I recently ran across this article yesterday…
“Bob Komarechka, a geologist from Sudbury, Ontario, spends many tedious days in the field lugging rock samples and electrical instruments. Two seemingly unrelated desires—one for a pair of comfortable gel-cushioned soles, the other for an alternative to frequently changing his instruments’ failing batteries—led to an epiphany.

In May 2001, Komarechka received a U.S. patent for a shoe design that uses the rolling motion of walking to produce a steady flow of electric current. When a person steps forward, fluid is forced out of a sac in the heel through the blades of a small turbine into another sac in the toe, where the fluid is held by a check valve. When the foot rolls onto its toe, the fluid is squirted back through the turbine and into the heel. Both the turbine and a microgenerator are located between the sacs, in the center of the sole, and a socket connects a wire to electrical devices.

Using calculations based on the average person’s weight, Komarechka believes that the shoes could generate a steady three watts of electricity—enough to power a hand-held computer, a GPS device, or a radio, or to continuously recharge batteries.
No prototype exists yet, although Komarechka is waiting for replies from Reebok, Nike, and the U.S. military. “I know I can make it work,” he says. “It’s fairly straightforward.””

Source:
http://www.yesmagazine.org/article.asp?ID=1012
So now the question is, is harnessing human movement possible in the future to create energy?

(even if it only powers my rechargeable batteries for my MP3 player I’ll be thrilled! Endless MUSIC!)

2006-07-22 10:18:38 · 4 answers · asked by Am 4 in Physics

the storey hAPPEND ABOUT 1 YEAR AGO SHE GRADUATED AND THEN WENT ON A TRIP TO ARUBA WITH HER CLASS THEY STILL HAVENT FOUND HER SHE DISSIPERD IN ARUBA AND NO SIGNS OF HER HAVE BEEN FOUNDWHO THINKS SHE IS STILL ALIVE

2006-07-22 10:07:17 · 8 answers · asked by hayy<3 2 in Mathematics

2006-07-22 10:04:07 · 11 answers · asked by Beetlesmack 1 in Medicine

Sharks are one of my most favorite animals. My favorite shark is the Great White. I want to study them and learn more about them. I'm jsut curious to see how many people likes or dislikes sharks.

2006-07-22 10:00:46 · 25 answers · asked by Snowfox 3 in Other - Science

I'm looking for somewhere that i can put my opinions and theories about physics,math,and etc

2006-07-22 09:59:28 · 3 answers · asked by violin_love1369 1 in Physics

What are some sources that I can find good and accurate information.

2006-07-22 09:57:59 · 9 answers · asked by Beetlesmack 1 in Medicine

A - when two drugs share the same primary effect.
B - between almost any two drugs.
C - when two drugs amplify the effect of each other.

2006-07-22 09:56:51 · 3 answers · asked by Anonymous in Medicine

2006-07-22 09:55:58 · 21 answers · asked by Beetlesmack 1 in Medicine

There are laws on forced medication. Where can I find more information on forced medication and when it can and can't be used.

2006-07-22 09:54:37 · 5 answers · asked by Beetlesmack 1 in Medicine

2006-07-22 09:51:01 · 10 answers · asked by Gabrielle M 1 in Earth Sciences & Geology

2006-07-22 09:50:51 · 10 answers · asked by Gabrielle M 1 in Earth Sciences & Geology

2006-07-22 09:49:15 · 21 answers · asked by BILL B 1 in Biology

2006-07-22 09:49:07 · 5 answers · asked by dawn1812000 2 in Mathematics

If matter transporters really work like the way in Star Trek etc. (i.e. breaking him down into atoms and then rebuilding him from atoms at the other side), doesn't that mean the original person is actually killed and the person come out is really just a clone?

I mean even if he has the exact memory as the original, he'll believe he is the original, but the truth is the original is really killed during the process and he is really just a clone with the exact memory, isn't it?

No I'll never go through a transporter even when it becomes a reality, you're killing yourself!

2006-07-22 09:46:03 · 5 answers · asked by C1N2G8 1 in Physics

2006-07-22 09:44:32 · 10 answers · asked by Chris M 2 in Other - Science

An atom and a solar system are similar, thus a galaxy is like a molecule, can earth be just an electron in some greater collection of matter beyond our understanding?

2006-07-22 09:41:14 · 17 answers · asked by Anonymous in Chemistry

while answering please give your grade also.

2006-07-22 09:37:05 · 4 answers · asked by flori 4 in Mathematics

To the way it normally does, that is! And, I know the ocean would be a tiny hiccup - but, for the purpose of this question imagine all land mass is joined.

2006-07-22 09:31:49 · 28 answers · asked by Lauren 2 in Physics

Where I live, there's been so much humidity and thunderstorm activity....flooding, lightning fires, you name it.
I've been here for 22 years and it's NEVER been like this.
How about you?

2006-07-22 09:29:20 · 20 answers · asked by Anonymous in Weather