Science & Mathematics - 30 July 2006

You know...like when there's drops of dew on the grass and it's all shiny and from different angles the drop will look different colors, but always shiny...why is that?
*I'm not really sure if this is a physics question or not, but it's still science...

2006-07-30 13:26:22 · 8 answers · asked by Mariah 4 in Physics

2006-07-30 13:26:09 · 12 answers · asked by Anonymous in Biology

2006-07-30 13:21:09 · 16 answers · asked by big blue 1 in Mathematics

2006-07-30 13:19:58 · 7 answers · asked by big blue 1 in Mathematics

In hospitals they say things like, "Dr. Blank to OR1, stat."

What does the stat part mean?

2006-07-30 13:18:31 · 22 answers · asked by Sophie S. 3 in Medicine

I'm thinking about a BA/MD combined program but I'm not sure I'm good enough to study hard and stuff like that, I have graduated high school in Egypt and I had a grade point average of 70%.
some people say don't worry you won't have to study very hard if you go to the college every day.
so what do you say?

2006-07-30 13:17:20 · 10 answers · asked by Anonymous in Medicine

Even if it's not scary or sexual? Or am I the only one this happens to? Anytime I wake up from a vivid dream, even if it's just a pretty boring one, I feel like I'm freezing.

2006-07-30 13:17:14 · 3 answers · asked by Schleppy 5 in Other - Science

Ok, I need a person who's really good at physics. If you don't know please don't answer. Ok, for a concave lens there are three light rays that can pass through.
1) Any ray passing through optical centre continues without refraction
2) Any ray travelling parallel to PA (principle axis) is reflected "in line" with the PF (principal focus or focal point)
3) Any ray travelling towards the SF (secondary focal point) refracts parallel to the PA

My question is why doesn't the light ray ever go through or pass the PF?...only the extended light ray does.

2006-07-30 13:16:46 · 3 answers · asked by A 2 in Physics

answer at once.. please...

2006-07-30 13:09:44 · 7 answers · asked by ksha_xprx 1 in Earth Sciences & Geology

2006-07-30 13:05:24 · 2 answers · asked by anniebri3 1 in Biology

A gas and some powder are sealed in a hollow cylinder of internal volume 50 cubic cm at a pressure of 1000kPa. This volume was reduced to 20 cubic cm at a constant temperature, causing the pressure to rise to 400 kPa. Use these results to calculate the volume of the powder.

2006-07-30 12:59:05 · 8 answers · asked by surani_ud 3 in Physics

2006-07-30 12:54:25 · 11 answers · asked by Anonymous in Weather

2006-07-30 12:50:53 · 30 answers · asked by swanmode 1 in Medicine

2006-07-30 12:50:22 · 13 answers · asked by tmac 5 in Other - Science

2006-07-30 12:46:31 · 11 answers · asked by Naty:Co-Emperor Has Returned 6 in Astronomy & Space

According to an email I received from a friend, the planet Mars will be at its closest point to earth, in recorded history, on August 27, 06. 34,649,589 miles, and next to moon, will be the brightest object in the sky.

The planet Mars will appear as large as the full moon to naked eye.

2006-07-30 12:45:50 · 23 answers · asked by jorst 4 in Astronomy & Space

any number

2006-07-30 12:42:36 · 34 answers · asked by Yndy'91 3 in Mathematics

2006-07-30 12:40:43 · 19 answers · asked by isaac a 3 in Earth Sciences & Geology

2006-07-30 12:37:22 · 2 answers · asked by RJTyger9 1 in Medicine

I know about Electrons, Protons, and Neutrons.

But what are these other particles?
Positrons, Photons, Neutrinos, Mesons, and Hyperons?

2006-07-30 12:37:13 · 5 answers · asked by Anonymous in Other - Science

Ok, light bulbs I get come in 20 or 40 or 60 watts. But if there was a 1,000 watt light bulb and it was left on for 1 hour would it use a kilowatt-hour? Also correct me if I’m wrong; kilowatt is 1,000 watts, megawatt is 1,000,000 watts, and a gigawatt is a billion watts. If both the things I’ve said are true then would a 1,000,000 watt light bulb left on for an hour use a megawatt-hour? Any other information you think I should know about this would be appreciated.

2006-07-30 12:36:10 · 5 answers · asked by donald d 3 in Chemistry

If you look into the front side of a shiny spoon, you will see an inverted image of yourself. If you look into the back side of the spoon your image is upright. Why is this?

2006-07-30 12:33:23 · 5 answers · asked by lady_bugs_2000 2 in Physics

2006-07-30 12:31:59 · 18 answers · asked by forget me not 1 in Astronomy & Space

how does it work?

2006-07-30 12:29:15 · 2 answers · asked by Naty:Co-Emperor Has Returned 6 in Physics

2006-07-30 12:25:32 · 11 answers · asked by the.chosen.one 3 in Physics

shuttle leave the earths atmospere.

2006-07-30 12:25:24 · 12 answers · asked by isaac a 3 in Astronomy & Space

2006-07-30 12:14:50 · 7 answers · asked by Anonymous in Medicine

All I've been able to find are the largest cities by their populations, I need to know the sizes in miles. Does anyone know, or have a link? Thanks.

2006-07-30 12:07:38 · 1 answers · asked by karenjet 4 in Geography

2006-07-30 12:04:30 · 13 answers · asked by Mr. Knowledgeable VI 7 in Mathematics

2006-07-30 12:01:32 · 15 answers · asked by red_dogwood19 2 in Geography