Science & Mathematics - 23 July 2006

which is the best area in electrical engineering:
computers?
communication?
power distribution?
OR
robotics and controls?

2006-07-23 17:32:19 · 9 answers · asked by The Apostle 2 in Engineering

2006-07-23 17:22:57 · 13 answers · asked by Kydolf Bootler 2 in Other - Science

how to culture the microflora and fauna of gutwall of earthworms? and collection of earthworm in laboratory?

2006-07-23 17:19:37 · 2 answers · asked by soumya b 1 in Zoology

2006-07-23 17:18:48 · 19 answers · asked by HM 1 in Zoology

Apophis...In Egyptian myth, Apophis was an ancient spirit of evil and destruction, a demon that was determined to plunge the world into eternal darkness.
A quite fitting name, for this large asteroid that is now hurtling through space potentially on a head on collision with our little blue green planet.
Scientists are watching the progress of the 309 meter asteroid that was discovered last year.
NASA estimates that an impact from Apophis would release 100,000 times the energy that was released in the nuclear blast over Hiroshima.

Want more info?

http://www.guardian.co.uk/space/article/0,14493,1660485,00.html

Do you think that Apophis is a serious threat? What do you think about the claims that Apophis is the asteriod that will possibly wipe us out?

2006-07-23 17:17:14 · 3 answers · asked by Anonymous in Astronomy & Space

I hear lots of theories like our Universe is approximatly 12 billion years old and that it at all started with THE BOMB known as the big bang, more to that they say this Universe could in the end envelope back again and shrink back into an infinitismally small point in space and then explode again, OR if theres not enough matter in the Universe then it will simply keep on "expanding" to the limitless beyond, now heres the real question, if the universe is in fact expanding, and say the "universe" is all there is, all that can exist, doesnt it occur to you in a strange thought that what lies beyond the i guess the expanding "egde" of the Universe itself? its like imagining a balloon expanding in empty space, is the empty space around it just "nothing"? or am i not understanding the real concept quite right? its an open question, plz feel free to state whatever you want, whether its theoretical facts or ur own personal beliefs, thanks.

2006-07-23 17:17:06 · 9 answers · asked by TS 1 in Astronomy & Space

Where it seats on the Brain?What form it is . An electro magnetic wave or some chemicals or some form of light waves?

2006-07-23 17:15:54 · 14 answers · asked by 007james bond 3 in Medicine

I am looking for pictures of historcal landmakrs monuments or places in africa. Do you know of any

2006-07-23 17:14:57 · 4 answers · asked by Robin B 2 in Geography

2006-07-23 17:14:48 · 3 answers · asked by kayla9113 2 in Physics

2006-07-23 17:13:29 · 12 answers · asked by Mr Fact 3 in Earth Sciences & Geology

Is it any radio wave or light wave or something else? What is the Physics behind it?

2006-07-23 17:07:25 · 11 answers · asked by 007james bond 3 in Physics

Need someone to check my work, and if wrong, tell me how....

1. How many solutions to this non-linear system -
y=(1/2)x^2+(x)-3
y=x-1

My answer is 2 solutions

2. Use the substitution method to solve this nonlinear system

y=x^2+2x+8
y=-6x-7

I got (11, -3) and (23, -5)

3. Use the elimination method to solve this nonlinear system
3x+y^2=19
x-y=7

I got (5, -2) and (6, -1)

4. How many REAL solutions to this nonlinear system

3x^2+2y=12
-3x^2+4y=24

I got 2 real solutions.

2006-07-23 17:06:51 · 6 answers · asked by metsfan6986 1 in Mathematics

2006-07-23 16:58:06 · 4 answers · asked by Vihnu_cool 1 in Other - Science

2006-07-23 16:50:17 · 11 answers · asked by Anonymous in Mathematics

2006-07-23 16:47:01 · 29 answers · asked by Touting Rain 1 in Weather

What if space is nothing more than a void created by some mass illumination. Light is still the common relative to speed. How do we trace a single sub-atomic imprint. If every visible dimension is really inverted. What is the most common sight we would see.

2006-07-23 16:38:04 · 4 answers · asked by Thin King 3 in Physics

i need a detailed answer so i can really understand why i am not getting any calories or nutrients from drinking regular water....

2006-07-23 16:23:46 · 14 answers · asked by narcissa 5 in Chemistry

If you died at 75 and came back to life 25 years later, would you be 75 or 100? You are, astronomically, 25 years older, but you never lived that 25 years. I want good answers to help me solve this dilemma!

2006-07-23 16:21:36 · 5 answers · asked by Anonymous in Other - Science

can somebody please answer this question with how the azetropic distillation curve of methanol and toluene looks like.

2006-07-23 16:08:11 · 4 answers · asked by Anonymous in Chemistry

can somebody please answer this question with how the azetropic distillation curve of methanol and toluene looks like.

2006-07-23 16:05:55 · 2 answers · asked by Anonymous in Chemistry

2006-07-23 15:52:15 · 5 answers · asked by kayla9113 2 in Physics

Days after the towers fell during the clean up, there were pockets of molten steel in the debri. You can find pics of heavy equipment picking up glowing red hot fused together steel here www.911physics.com along with many other interesting facts. Jet fuel can reach a maximun temp of 1800 degrees (not enough to melt steel). So where did this molten steel come from?? Is there any known materials in WTC 1 and 2 that would burn hot enough to melt steel in less than 2 hours?? A radio communication from a firefighter on the 78th floor said this:"Ladder 15, we've got two isolated pockets of fire. We should be able to knock it down with two lines. Radio that, 78th floor" you can listen to it here http://rapidshare.de/files/9140213/FireFighter.mp3.html This would have been very close to the impact zone. Hardly seems like the type of fire to melt steel does it?? How can the vast majority of Americans just ignore things like this??

2006-07-23 15:48:40 · 14 answers · asked by captpcb216 2 in Engineering

excess acid at 30.0c. [R=8.314510J/molK]

2006-07-23 15:47:16 · 2 answers · asked by Byron M 1 in Chemistry

2006-07-23 15:47:13 · 8 answers · asked by Kate 1 in Mathematics

2006-07-23 15:44:59 · 27 answers · asked by levi 1 in Zoology

a) 12 cm
b) 6 (square root of 2) cm
c) 8 cm
d) none of these

2006-07-23 15:44:51 · 9 answers · asked by marjorie_062001 2 in Mathematics

2006-07-23 15:42:51 · 8 answers · asked by basset slave 1 in Chemistry

do you believe in ghosts? why or why not? has anyone ever had something unexplainable happen to them that could have been a ghost?

2006-07-23 15:42:25 · 8 answers · asked by Anonymous in Other - Science

a) 4.8
b) 7.2
c) 12.2
d) cannot be determined

2006-07-23 15:41:24 · 2 answers · asked by marjorie_062001 2 in Mathematics

If they are able to develop nuclear technology, are they developing anything else of interest? Is it likely to kickstart a technical revolution in the country? Serious answers only please.

2006-07-23 15:39:59 · 11 answers · asked by richy 2 in Other - Science