Science & Mathematics - 4 July 2006

By this I mean that now humans take care of even those of us who would normally never live to an age where reproduction became possible. Is our humanity and compassion the end of our evolution?

2006-07-04 10:52:20 · 16 answers · asked by psilohead 2 in Biology

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What is the most westernized country in the middle-east?

2006-07-04 10:51:41 · 23 answers · asked by AnswerBlaster 2 in Geography

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I have a hard time deciding what job i should get when I finish college.?

I really want to be Vet, but only the vets that do surgery on animals get lots of money but i hate to see blood. I wanna be a zooligist but they don't earn a lot and ill be poor. I can be a lawyer but i hate that job. What should i be then? I would love to be a Scientist person that studies some kind of Life Science but they don't earn a lot.

2006-07-04 10:50:42 · 17 answers · asked by Life's Web 1 in Botany

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Do coffee and skunk spray have a similar chemical?

Does anyone know if there is a similar chemical in coffe and skunk spray? Sometimes they smell alike.

2006-07-04 10:41:06 · 7 answers · asked by blondjason1221 3 in Chemistry

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what it rain it pours do you like it?

i love the rain

2006-07-04 10:39:10 · 7 answers · asked by sugar_girl 2 in Weather

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is the buffalo in danger of becomming extinct?

2006-07-04 10:38:52 · 13 answers · asked by diamondkattz 1 in Other - Science

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does Reno Nevada get any tornadoes? sever weather?

2006-07-04 10:34:04 · 4 answers · asked by Anonymous in Weather

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moon landing 1969?

Did Neil Armstrong make up his moon landing speech "off the cuff" or was it scripted by NASA? "One small Step for man, one giant leap for mankind"

2006-07-04 10:31:19 · 10 answers · asked by Anonymous in Astronomy & Space

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Why are they still working on the Flying Saucer design? Haven't they figured out it's not efficient enough?

It might look good and it might tickle the fancy of UFO believers, but there are so may reasons why the design is inefficient. For example, using downward thrust to keep a heavy object afloat takes tremendoes amounts of torque, and the problem is, the engine "treads air". It pushes the thrust out so fast it creates it's own envelope. If they could have used the princible of the helicopter rotor, where the torques is spread across a large area, then maybe it would fly. Another reason is that they want the outer ring to spin creating a gyro effect. There are huge amounts of energy lost there. Another example that should have been taken from the helicopter.

2006-07-04 10:29:57 · 7 answers · asked by Rockstar 6 in Engineering

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Trigonometric substitution?

I was reviewing the integration technique of trigonometric substitution and I wanted to know why we are only restricted to using sin(a), tan(a), and sec(a)....

For example, in order to find the integral of (1/(1-x^2))dx .... the common method is to use x = sin(a) as the subsitution and you then get the answer arcsinx + C. However, how come you can't use x = cos(a)??? I can work out the problem but I get a different answer. I don't have my notes with me at the moment, but I believe I got -arccosx + C.

Why must I use sin(a)???

2006-07-04 10:27:13 · 4 answers · asked by Anonymous in Mathematics