Science & Mathematics - 21 December 2006

2006-12-21 23:54:32 · 6 answers · asked by DAVE 6 in Biology

2006-12-21 23:52:32 · 14 answers · asked by nat 3 in Zoology

2006-12-21 23:49:55 · 8 answers · asked by GTB 1 in Physics

2006-12-21 23:49:01 · 20 answers · asked by Anonymous in Biology

There is a circular railway track.The circumference of the inner track is 100m and that of the outer track is 125m.On 1 complete revolution by a train the wheels on the inner track cover 100m and obviously the wheels on the outer track travel 125m. This means that the speed of the inner set of wheels was less than the outer ones.But both of the wheels are attached to the same axle.Then how is this problem solved.
Please I need detailed and convincing answers.

2006-12-21 23:45:54 · 8 answers · asked by Anonymous in Physics

the return of the shuttle has been postponed to saturday due to problems through the weather. alos it is not clear where to land, whether in cap canaveral or elsewhere. please give me the precise site, where i can watch the landing process.

2006-12-21 23:42:01 · 3 answers · asked by Germanman 1 in Astronomy & Space

Hello dudes, I was wondering what would happen if say our bodies were in a spacecraft that suffered decompression and we got vented into space? Would the pressure in our bodies cause us to explode, or just massively haemorrhage?

No guesses or jokes please, only scientific answers.

2006-12-21 23:38:02 · 7 answers · asked by rotciv_gan 2 in Astronomy & Space

2006-12-21 23:36:58 · 6 answers · asked by Anonymous in Earth Sciences & Geology

2006-12-21 23:35:03 · 5 answers · asked by charan r 1 in Mathematics

2006-12-21 23:31:57 · 12 answers · asked by Anonymous in Geography

2006-12-21 23:26:12 · 24 answers · asked by ankushwaman 1 in Physics

It is clear that man is too heavy to fly using bird-like wings that would flap. They would simply have to be too large and use too much energy for taking off.

However, how about wings like on a bumble-bee? A bumble-bee's wings are very small and lightweight compared to the bee's mass.

Could one use nano-technology to create a super-strong ultra-lightweight wing that would be powered not by a motor, but by artificial muscle also created from nano-technology?

Man would wear this aparatus, not to fly like a bird, but to "buzz about" like a bug.

The technology for this does not yet exist, but will within 25 years. Assuming we can create very strong artificial, non-mechanical muscle to power the super-fast beating wings, wouldn't something like this be feasible?

That being said, how large would the wings need to be, say to allow a 180 lb man to fly like a bug? They say that from a scientific standpoint, bumble-bees cannot fly, yet they do.

2006-12-21 23:20:20 · 2 answers · asked by mitchellvii 2 in Engineering

If a small amount of energy is all required to pick up speed in space then double triplle and so on until resistance why cant we try extreme thrust one time. Something like 100,000 mph then simply coast. It would double infinintly until resistance-1-2-4-8-16-36- Thats seems like away to achieve great speed in space. Im probably dead wrong it would not double but i think it would change from original speed in the positive category and so on?

2006-12-21 23:08:50 · 4 answers · asked by Anonymous in Astronomy & Space

2006-12-21 23:05:31 · 3 answers · asked by dalman99uk 2 in Physics

i am in the middle of my add maths assignment. the problem is how to insert 'power of 2' in my equation. do u know how??

2006-12-21 23:04:54 · 4 answers · asked by Anna_Kaos 1 in Mathematics

I heard about the bears that stopped hibernating. Climate change is here.

2006-12-21 23:02:29 · 14 answers · asked by Anonymous in Zoology

and let them go at the same time?

2006-12-21 22:57:01 · 8 answers · asked by blablabla 3 in Astronomy & Space

2006-12-21 22:56:26 · 5 answers · asked by wahoo-yahoo 1 in Physics

1. x + y = 5
x - y = 5

2. 2y + 3x = 5
3y - 2x = 5

3. 1/2x + 1/3y = 2

2006-12-21 22:55:36 · 5 answers · asked by RJS88 1 in Mathematics

ZCZC SK99
QST de W1AW
Keplerian Bulletin 99 ARLK099
From ARRL Headquarters
Newington, CT December 19, 2006

2006-12-21 22:55:24 · 1 answers · asked by Phillip 4 in Astronomy & Space

2006-12-21 22:51:39 · 6 answers · asked by Anonymous in Geography

Is it possible in space for a vessel ship or object to double its speed because of lack of resisitance? Lets say you go 100mph in space could it double in a period of time then repeat the process.
100mph then 2-4-6-8-10? Is it possible what do we know about momentum-inertia in space.

2006-12-21 22:42:04 · 7 answers · asked by Anonymous in Astronomy & Space

2006-12-21 22:38:57 · 7 answers · asked by Anonymous in Engineering

2006-12-21 22:38:04 · 7 answers · asked by honker 4 in Mathematics

Obviously 6 inches depth of water in a test tube is lower in volume than 6 inches in a bucket....

2006-12-21 22:37:12 · 5 answers · asked by bonshui 6 in Weather

2006-12-21 22:36:49 · 24 answers · asked by tbag c 1 in Biology

2006-12-21 22:34:26 · 2 answers · asked by Anonymous in Engineering

It is said that traveling at the speed of light will stop time. Which i disagree with since speed is a measurement of distance per unit of time. How is this possible?

2006-12-21 22:32:27 · 10 answers · asked by Anonymous in Astronomy & Space

2006-12-21 22:25:25 · 5 answers · asked by Sherlock 6 in Earth Sciences & Geology

If a bomb explode in the middle of the desert and no one is there to hear it, does it make a sound?

2006-12-21 22:22:59 · 8 answers · asked by Anonymous in Physics