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George Yacoub from Sydney asks

I am having a problem understanding the Earths Atmosphere. It started years ago with the simple...

H. Gaspar from Toronto asks

I am considering neuroscience as my ideal career. What type of atmosphere would a neuroscientist...

Mischa from Toronto asks

Black Holes, formed after the collapse of massive stars, are infinitely dense objects.Why is it...

Gillian Seale asks

What was Dennis Gabor's theory on holography and how did he came up it?

Gary from Birmingham asks

Why is the time of a day measured using 24 hours?

Cheah Bok Eng from Penang, Malaysia asks

May I know what chemicals can undergo esterization by absorbing sunlight energy at 33 degree...

Daniel from SIngapore asks

Is it possible to focus gamma rays into one beam and then reflect it off an orbiting mirror onto a...

Lee Riffee asks

With all that the U.S. military is doing by developing laser weapons as an anti-missile defense, I...

Swaminathan N from Chennai asks

Why do aqueous ionic solutions have less thermal conductivity than pure water?

Ernie Epp from Kenora, ON Canada asks

Regarding the behaviour of a high-voltage spark. I have a device which generates a pulse of ...

Stephen Leece from London asks

Are there any solutions that change their pH level from neutral to 8.5 or higher due to the...

M.Shirley from Horam, E. Sussex, UK asks

ULUru is the aboriginal name for Ayer`s Rock, which was a sacred place for native Australian...

Jon from Ottawa asks

Who invented the nephoscope? When was it invented?

Kris from Vancouver asks

I recently removed some mercury from a thermostat and I've been told by my teacher that to touch it...

Barbara Berghoff from Illinois/usa asks

I need to know what dissipates into the air during a salt analysis titration. I do this at work...

Matt from the Internet asks

What is the chemical formula for air?

kevin van sprang from powell river b.c. asks

Could it be possible that gamma ray bursts are the end result of a black holes energy bursting...

Shane C. asks

Could you explain the idea that gravity could be thought of a depression or well, much like when a...

R Clark from Prince George asks

Can any force be enacted upon a perpendicular slice of air molecules to attenuate the propagation...

darren liew from Singapore asks

How many times a year can you see the eclipse of the moon???

Avishan from the Internet asks

What gives yellow corn and blue corn its color? What is the specific pigment and why?

Amy B from the Internet asks

It is snowing today and the wind is blowing from the east but the snow is collecting on the west...

Susana from Germany asks

I would like to know why Russian rocket engines use 4 nozzles and American ones just one. What...

Adam B. from Miami asks

Ok... this has been bugging my mind. Is it possible to generate heat with your mind to set things...

Tony Aben from Kamloops, BC asks

Is there a simple chart that indicates the amount of carbohydrates in various foods? If so where...

Richard L. Gibbens from Colorado asks

My question concerns the latest news about the Cosmological Constant. Has it now been established...

Kirsty from Cumbria asks

Why do both sexes of dabbling ducks have brightly coloured bills?

Mary E. Tucher asks

Science and religion are two different ways of explaining how we exist. How can scientists have...

Beverly Ng from HK asks

Why does light degrade vitamin C? (in juice or liquid form)

Carolin asks

Please explain an experiment that can only be done on the Spring Equinox March 21st. You can make...

Greg Kutz from Goolwa, South Australia asks

At what depth into the soil do temperatures remain constant and what would that temperature be?

Bryn Williams from Vancouver asks

If the telomeres of a cloned organism are smaller than a non-cloned organism, and therefore may...

M Anderson asks

If you could dig a hole from one side of the earth to the other passing though the core, what would...

Pankhuri Kalra from Delhi asks

Is there any reaction which can take place without the exchange of heat with the surroundings or...

Dennis from the Internet asks

Could you explain how to complete and find the genotypes and phenotypes of sexlinked, multiple...

Jessica Hawthorn from Lac La Biche, Alberta, Canada asks

What experience and education should I get for a career in paleontology?

Nicole from Des Moines asks

Does the Earth's core rotate with the crust??

Ed from Kyiv asks

Against the black plastic on my TV, dust looks white; when I wipe it off with a white tissue, dust...

Muhammad Zaid Khan from Karachi asks

How can the mass of earth be calculated and what are Newton's rings?

Darren Gough from Vancouver, BC asks

Have you ever hit the top of a glass juice bottle with your fist. It makes a very loud cracking...