Most popular

John Crowe from Dublin asks

If I knew the centre of the universe and began to travel toward it, would I begin to decrease in...

Stanley from Vancouver asks

Why are soccer balls coloured black and white? I heard it has to do with these two colours making...

S. Warne asks

What are some recent Canadian contributions to research and development? I was challenged by...

Ryan from Pittsburgh, PA asks

I'm curious about the possibility of "real"  superheroes.  Even though I think...

Jeff asks

How do astronomers know the true position of stars? When astronomers show us pictures of the Great...

Srikar from Mississauga, Ontario asks

If Pluto is not a planet, how is it classified? What is it called now?

D.D. from St.john's, NL asks

Ethanol is the focus of many tax dollars these days. It seems to me that the burning of any...

Zach from Greenwood, Nova Scotia asks

Hi, I was just wondering, I wanted to get into the whole biology scheme of things when I get older...

Michal Jaworski from Calgary asks

When a nuclear particle radiates either an Alpha, Beta or Gamma praticle can that process be...

Sandra Roberts from Toronto, Ontario asks

Is there a difference between total recall and a photographic memory?

Rory from winnipeg asks

Why is it that a difference in the number of electrons in an atom makes a completely different kind...

Mateusz from New York asks

Is it true that the moon moves away from the earth a few centimeters each year? Also do satellites...

Kelvin C from GTA asks

Why is it that when calculating the volume of a pyramid, such as a cone, you always have to divide...

Julie from Portland, Oregon asks

How are sand dollars bleached white? Is it by the sun or the sea?

James from Montreal asks

There has been much mention of antimatter, such as antineutrinos. I was wondering what exactly...

Monse from Las Vegas asks

What type of salt melts ice the quickest?

Kate Cunningham from Wellington NZ asks

I saw you answer to the composition of banana peels, but I would really like to know what chemical...

Ethan Heil from Salem, VA asks

I am doing a research project on the strength of different batteries. Is there a cheap way to test...

Kristina from Ottawa, Ontario asks

I was just wondering what the ratio is between male and female scientists?

Rafael Bourdieu asks

Can you tell me about enhancing mental performance and cognitive abilities through brain nutrition...

Steph from London, England asks

I've often wondered about this. It's kind of complicated, so bear with me... If a person suddenly...

Dave asks

Is it possible for a girl to get pregnant even if the man did not fully ejaculate? If a man and...

Jim Davis asks

For some reason, it is common knowledge in this community that when subjected to cold, hot water...

Sébastien Morin asks

How is aspartame synthesized (theoretically and within industrial processes)?

Heidi from Malaysia asks

Could you please tell me what is inertia? Will it bring us more good than bad in our life? Will you...

Jonathan from Kuala Lumpur, Malaysia asks

Is it possible for the air that we breathe to either run out or deteriorate to such an extent that...

kaushik from bangalore asks

Why is the sky blue?

luke kujawa from armada asks

What is the chemical composition of basic aluminum, steel, and brass, and which metal conducts heat...

Jim from Philadelphia asks

Why doesn't a person lose 9 lb when they consume 1 litre of ice water? If a calorie is the energy...

Tim Wiebe asks

Since a plane's wing is designed to fly right side up, how does a plane stay up in the air when it...

Avadhuta Raya from Amsterdam asks

I imagine there must be a gene for lactose tolerance in mammals and humans? They have to have it,...

Nancy rosamond from Owen Sound, Ontario asks

When I grew up most oranges grapes and other fruit had seeds. This was the normal fruit and...

Ken Louie from Washougal, WA asks

I spilled some iodine disinfectant on my vinyl tile floor. As an old chemist, the only chemical I...

Sam asks

There is this question in my physics book asking me to check out the ways plants wrap themselves...

Rachel asks

I am doing a science fair project to measure which type of ibuprofen dissolves fastest in stomach...

Kelly Gould from Sacramento, CA asks

I am a firearms Instructor for Law Enforcement Officers. I am teaching a course on training male...

Umit Koseoglu asks

Is it possible to make a soap bubble that you can get inside?

Michael Parks from Scotch Lake, Cape Breton, N.S. asks

If nothing can escape from a black hole, how come we are here? The big bang must have...

Richard from Flesherton asks

What are the causes of Northern Lights? Do they have any relation to the green-house gasses in the...

Sarah from Fredericton, NB asks

What is the chemical in banana that causes drowsiness?