Most popular

Amanda from Thunder Bay, Ontario asks

What is colour? How does the brain perceive colour?

Kim from the Internet asks

When metal scrapes metal such as two spoons, it makes the edges of my teeth feel numb. Why is that?

Sadia Ali asks

Apparently we lose millions of brain cells every day. Does that mean we are getting dumber by the...

Gavin Dune from Australia asks

How does the sensory memory help us to hear, read and understand whole sentences? For example. when...

pete gold from manchester asks

If the average human were a PC computer, what would the specification be? (processor speed, memory,...

Rowland Craig from San Antonio, Texas asks

What is the volume of breathable air on the earth? Perhaps as one atmosphere?

Laura from Toronto asks

Why does lake water change temperature at a slower rate than the ground?

Tarek Samaha from Lengerich. Germany asks

I appreciate it if you could tell me more about Philadelphia Experiment. I heard so much about it,...

Davina asks

Do people's teeth fall out naturally from old age or is that caused by a disease?

Kristi from Saskatoon asks

I would like to know how much oxygen is in our breathable air, and also if it has ever been 50%. If...

Jonathan Holt asks

Why is oxygen used in the brewing industries' fermentation tanks? What types of yeast or bacteria...

mark irvine from sacramento asks

If you have a square 1 pound block with a front flat surface strike a ball, would it be the same as...

Keira Sword asks

Can you please explain to me how yogurt is made? My mom says it is made with bacteria, but I am not...

Lacci from Withernsea, Yorkshire, England asks

Many people say there are 5 senses in the body but I am arguing with my mum here that there are...

Josh Blake from Mississauga, Ontario asks

I am really interested in chemistry and I was wondering where I would be able to purchase some of...

prashanth kumar aitha from delhi asks

why is BERMUDA TRIANGLE'S MYSTERY unsolvable?

Nick from Toronto asks

Is it humanly possible to `whistle' or make a sound at a high frequency (similar to a dog whistle)...

Brandten B Miller from the Internet asks

How does the shape of the fuselage affect the glide distance of an aircraft? What is the best...

DeeCee from Indianapolis asks

Is there a standard formula that will convert altitude into pressure? I'm interested in altitude...

Awot Negash from Alexandria, VA, USA asks

What is the relationship between rain intensity/rain rate and visibility? What resources can I...

Will McAbee from Pendlton asks

How does a atom split and how does it create such a big explosion? Also how can I split an atom at...

Jonathan asks

Would you be able to help me out in any way to find material on Fluorine?

Dennis Nolivos asks

What is your opinion on the ethics of transplant farming and what is your opinion about genetic...

Alicia asks

What would be the appearance of the moon if it were in the western sky just after sunset? Why would...

Rose Durose from Maple Ridge asks

I'm wondering if you could name some pros and cons of the environmental profession and what kind of...

Morgan from Ajax asks

If air is a gas, and gas explodes when heated (in an eclosed space, the atmosphere), does that mean...

Sara from Antigonish, Nova Scotia asks

How does the earth stay in the same place in space?

Alyssandra from Oakville, Ontario asks

I was watching a program about sleep-walking and they were saying something about how dreams were...

anton from Melbourne (Australia) asks

Is blood more complex than just the four groups? How? Also, what structures allow humans to have...

Courtney from Jacksonville, NC asks

Mt.Everest has two peaks, correct? What is the height of Mt.Everest' second peak?

Ryan Martinez asks

Why do magnets erase magnetically recorded data? Are there some generally accepted guidelines for...

Veronica Johnny from Port Hardy, BC asks

Where did Albert Einstien live?

Margaret Klima asks

What are the globes which, when you puts your hand close to them, display electrical energy...

Peter Griffin from Beaufort asks

Do all antibacterial soaps kill bacteria? How do you test if they do?

Jennifer from Brooklyn asks

Why does uracil replace thymine in RNA?

nijin from Khd asks

How did dinosaurs die? If they died due to a comet impact on the Earth there will be dust...

George Z from the Internet asks

Many people add mustard to salad dressing (oil and vinegar) in order to render the two usually...

Krisy Marsh asks

How would one maintain a bacterial culture without having to transfer cultures on a regular basis?

Nameless from Internet asks

When a baby is formed it starts out as one cell then splits and reproduces and forms perhaps...

Pat Prokop from Orillia asks

Last year a friend of mine widened and deepened an existing pond on his property. A considerable...