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Amy L. asks

What makes the horizon glow pink and red?

Raymond J. Sucgang from Manila, Philippines asks

Hi, Could you please clarify: Does an increase in precision mean a decrease in accuracy? Does a...

Kathryn H. asks

Are there any conflicting scientific views about the ozone 'hole' over the Antarctic?

Larry King asks

How can you measure the energy of an ocean wave? Is there a reasonably simple equation that...

Tony Sousa asks

How do hot packs work? My wife purchased a reusable hot pack for keeping our baby warm when we go...

Helina from Shakespeare asks

What two liquids combine that gives you a solid instantly?

Brian from Jersey City asks

How are mountains created?

Jennifer Easterly from Sydney, NS asks

Can you contract diseases if someone's saliva gets in your eyes? A really disgusting thing happened...

Tony Young from Santiago, Dominican Republic asks

I have a problem with moisture in my apartment. I live in a Caribbean country and am not able to...

Mike Delie from Menomonie asks

I'm doing a senior project on recycling, and I'm curious if it uses more energy to mine and convert...

Jason from Montreal asks

What's the percentage of male and female meteorologists in Canada?

Anonymous from the Internet asks

Why does water not sink down through the ocean floor?

collin from fort walton beach, fl asks

I just recently did an experiment using paper airplanes with different wing types (swept back at...

David from Blacksburg asks

Why does solar energy lose some of its strength when entering through the O-zone?

Marcos Chimenti from Rio de Janeiro asks

Does air act as an insulator against lightning on flying airplanes? I know the aluminum case is...

Chandler robinson asks

What is Tritium?

Loubelle I. Depita from Koronadal City, South Cotabato,Philippines asks

Why does nutrasweet or aspartame loses its effectiveness in cooking or in processes requiring...

Sara asks

What happens to a compass when it is held exactly on magnetic north? Does it just spin?

Asma from the Internet asks

Should scientists have any moral responsibility in science? For example, do scientists consider the...

Jesse Fitzpatrick asks

What is the highest and lowest canadian recorded air temperature?

darioush asks

What is thought? Is it matter or energy? And how does the brain create a thought?

Rosanne Li from the Internet asks

I would like to know how the brain functions generally while sleeping, and what part electricity...

Michel lamontagne from edmonton asks

I am wondering how water/air changes it's molecular structure so that when air is heated it...

Gillian from Haliburton asks

What effect do pain killers have on the human brain? How exactly do they work? What about drugs...

DeeCee from Indianapolis asks

How does vacuum insulation work and can an R Value be assigned to it? Does the depth of the vacuum...

Yevgeniy Perev from Staten Island asks

How much energy did the highest energy neutrino detected so far have?

bree kissner from kingsville asks

why does soda pop fizz when it is poured over ice

Ken Marshall from Sault Ste Marie asks

Since trees hold CO2 and produce oxygen, why would it not be beneficial to have marginal farmland...

MacArthur Kaleel from Atlanta, Georgia asks

We all know that earthquakes are one of the primary causes of mountain formation. Does the...

Sara asks

Is invisiblilty possible? Is it possible to alter an object so it can't be seen? Could people's...

Chelsea Imm from Glandorf, OH asks

Can you please tell me what the basic preservatives are in the following breads: white, wheat,...

Michael Chen from Calgary asks

Is there any evidence that the Green House Effect is not caused by industral gas emissions?

Vinita from Edison asks

What are the main chemical components in food? How do you determine the total protein, lipid,...

Denise from San Jose asks

Is it possible to do a blood test (or some other type of tissue testing) to determine someone's...

Elizabeth Inch asks

Could Dr. Michael Smith's discovery of site-directed mutagenesis be of benefit specifically to...

Gareth Cook from St. John's, Newfoundland asks

If, as we know, Carbon dioxide - a potent greenhouse gas - is heavier than air,  why is it a...

Serine from Singapore asks

Are there any developments in the research on elastin in coronary heart disease? Is there any way...

Jonathan Wever asks

What is the maximum number of decibels one ear can hear?

amanda from the Internet asks

How does cold front differ from warm front? How does a slow moving cold fromt differ rom a fast...

Krystal Cuttell asks

Who was Karl Adolf Clark?