Science & Mathematics - 3 August 2006

[Selected]: All categories ➔ Science & Mathematics

Agriculture · Alternative · Astronomy & Space · Biology · Botany · Chemistry · Earth Sciences & Geology · Engineering · Geography · Mathematics · Medicine · Other - Science · Physics · Weather · Zoology

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What makes different colors of lightning?

I'm just wondering. Is it the moisture content in the air? Optical illusion? I have always wondered, it is so beautiful. Yes, lightning is generally white, but my mom talks about remembering beautiful colors of heat lightning in South Dakota if I remember correctly. Thanks!

P.S. I notice with my little brother's train set, the electricity from the track is blue when discharging to the wheels, so maybe distance from a negative to a positive charge could have an effect?

2006-08-03 02:58:17 · 5 answers · asked by Anonymous in Other - Science

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What is the "Northern Lights" and where are they?

I've heard about aeeing the Northern Lights , but what is it and where can you see them from? From where do the different colors come from?

2006-08-03 02:54:53 · 23 answers · asked by Anonymous in Earth Sciences & Geology

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Can existance of GOD be totally ruled out?

2006-08-03 02:49:43 · 8 answers · asked by sujit 1 in Other - Science

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Does really Theory of Evolution scientifically fullproof at today's date?

2006-08-03 02:48:14 · 10 answers · asked by sujit 1 in Zoology

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How is it possible at certain times of the year to see the sun and moon in the sky at the same time?

2006-08-03 02:47:05 · 13 answers · asked by swiss_toni_toblerone 1 in Astronomy & Space

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were is the best small town in the us to live?

im ready to move

2006-08-03 02:40:24 · 11 answers · asked by Anonymous in Geography

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Does everything make sense in the end?

I found our scissors when I turned on the uplighter. They were in the lightshade. My partner said she put them in there when she was doing something up at the curtains and forgot them. Being a clever person she said it was an example that proved the chaos theory.but she was too tired to explain it to me. Living with her I think I know it but has someone got time? BRIEFLY.

2006-08-03 02:36:37 · 9 answers · asked by Anonymous in Other - Science

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What is the difference between Jaundice and Hepatitis B?

2006-08-03 02:34:20 · 9 answers · asked by Girish 1 in Medicine

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my water contaminate with aluminum sulphate, how can it removed?

2006-08-03 02:33:24 · 3 answers · asked by arunahjs 1 in Chemistry

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Where does the sea end and the river begin?

2006-08-03 02:27:37 · 28 answers · asked by kenfit 1 in Geography

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How fast does an object sink in the sea?

Example:- what speed was Titanic doing when it hit the bottom? and is there a terminal velocity in water as there is in air?

2006-08-03 02:27:32 · 12 answers · asked by badlegs 1 in Earth Sciences & Geology

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pie? whats pie? qwert?

2006-08-03 02:27:09 · 5 answers · asked by Normanainom 1 in Mathematics

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Why doesn't food stick to a non-stick frying pan?

2006-08-03 02:24:36 · 4 answers · asked by xD 1 in Other - Science

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In a circle cage with a radius line of 25ftwith a lion that is on a 5ftleash.How much grass can the lion ea t?

Remember 5 Foot leash attached to lion from the middle of a 25 foot radius circle cage.

2006-08-03 02:21:36 · 10 answers · asked by Anonymous in Mathematics

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is it going to be an early winter?

2006-08-03 02:21:27 · 7 answers · asked by Anonymous in Weather

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what is the distance to the moon?

2006-08-03 02:21:19 · 15 answers · asked by Maurice L 1 in Astronomy & Space

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Help me please?

Two masses, m1 = 28.0 kg and m2 = 42.0 kg, are connected by a rope that hangs over a pulley. The pulley is a uniform cylinder of radius 0.50 m and mass 5 kg. Initially m1 is on the ground and m2 rests 2.5 m above the ground. If the system is released, use conservation of energy to determine the speed of m2 just before it strikes the ground. Assume the pulley bearing is frictionless.
m/s

2006-08-03 02:20:02 · 5 answers · asked by Anonymous in Physics

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What is the difference between Celsius and Fahrenheit?

2006-08-03 02:19:56 · 8 answers · asked by adetola m 1 in Medicine

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Okay here goes What yardstick is in use to measure Earth distance from the Sun?

one more than i have to hit the grind stone
how accurate is it?????

2006-08-03 02:19:17 · 4 answers · asked by beantown10955 3 in Earth Sciences & Geology

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Why is there more stomata in the lower epidermis than that of the upper epidermis in the leaf?

2006-08-03 02:18:30 · 7 answers · asked by help? 2 in Botany

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Inertia (Physics)?

A centrifuge rotor has a moment of inertia of 3.25 10-2 kgm2. How much energy is required to bring it from rest to 10000 rpm?
J

2006-08-03 02:16:49 · 7 answers · asked by Anonymous in Physics

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I enjoy this site...the intellect astounding the earth is just spinning? correct?

How many things have you witnessed
that just spinn, for years in the same position!?

2006-08-03 02:15:41 · 3 answers · asked by beantown10955 3 in Earth Sciences & Geology

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hi all.I was wondering are there any pharmacists that might be ablt to tell me have i made a terrible mistake?

the problem is i was studying pharmacy but dropped out due to the fact I couldnt handle the pressure of being so far from home and the stress of the course itself. I Have already completed an intense 4year degree program and I think I just couldn handle the thoughts of that all over again. My health started to suffer and I was beginning to get severly down. Still, I regret giving up the course as I do believe I would thrive in the career. Can you please give me some advice? Im a bit lost in what to do from here..

2006-08-03 02:15:31 · 5 answers · asked by laudy! 1 in Medicine

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