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Joel from Australia asks

What is the chemical makeup of an apple?

Leo from Montville, NJ asks

Where can I find the data to support that polyvinylpyrrolidone is safe for medical applications? ...

Jason Kang from Thornhill asks

If a person was to experience continous pain, of moderate intensity, for a week, is there any...

Mark Brooks from London asks

Why do ice cubes melt quicker on stainless steel than a china plate and fire clay?

Kushagra Bhargava from Jaipur asks

Sir please tell me how the lghtwaves gets their momentum or how they come into motion?

Robert asks

What is more efficient: to push or pull a car (front wheel vs. rear wheel drive)?

Lori Anne Stanger from New Liskeard, Ontario asks

As everyone had heard in the news, as a result of the Indian Ocean earthquake and Tsunami of Dec...

Ian Burke asks

What do you think of a Gas/Electric hybrid car? I made a power generation device made up of 8 a.c....

Rob Pease asks

How can we reshape bone using our understanding of bone growth? Obviously, parts, if not all of a...

Charl Mai from Vancouver, Canada asks

Do herbal medicines interfere with the effectiveness of prescription medicines? If so, how does...

amanda from Vancouver asks

What kind of careers are there to choose from, based on chemistry and biology. To become a doctor,...

James McCarty from Frankfort, Kentucky asks

Evacuations of the earth's core through volcano eruptions, the pumping of oil, gas, etc., must...

Lucy Policelli asks

Is it feasible to embed microchips carrying pertinent data, health, history, money etc. into humans?

Don Roscoe from Vancouver asks

Is there a machine that will measure the amount of oxygen that my lungs use in a breath? Or the...

Edmund Mah asks

Are there special awards for Canadian scientists? Canadian science greats like Sir Frederick...

nohjin asks

Where does the energy in freezing water come from? When water freezes, its volume increases so that...

James Hope from Gloucester asks

Last year in school we learned about nuclear decay, and how some atoms decay by releasing gamma...

Tim Sullivan asks

What exactly do meteorologists mean by the term "high pressure"? Do they mean the weight of the...

Karan Rustagi from Ontario asks

I heard that electricity can be transmitted in other forms than electron flow; like electromagnetic...

Curious_Boy from the Internet asks

How do fronts affect temperature? Do pressure centres affect temperature as well? I know that they...

Payal from Buffalo asks

How do you determine the proportion of the various gases in the air?

Corinna asks

Can stabilized oxygen be used in place of iodine or chlorine to purify water? What if used in...

Rena from Thornhill asks

For school I need to know about natural convection and forced convection. I need to know the...

Sophie from Winnipeg asks

Why do street lights shut down, often, when we drive underneath them? Oftentimes, my boyfriend and...

Ken Cooke asks

I read somewhere there are a total of 9 dimensions. Can you elaborate on what these dimensions are?...

Barbara Pearson from Holly Springs, NC asks

I was reading a text which stated that scientists have used ice cores to calculate prehistoric CO2...

Gerhard asks

What kind of permanent changes in a developing child's brain or behaviour can be caused by the...

Mohammad from Toronto asks

What is 2 with the power of 4? and can u tell me some consideration of microwaves?

Antony St-Jacques from Kingston asks

How can I separate NaCl so I can obtain Na?

Richard from Halifax, N.S. asks

How do you calculate water flow rate (volume/sec) based on water pressure and hole or pipe size?...

Jonathan Weiler asks

How are the tiny chips and wires that go into a computer made? They seem so tiny and fragile.

Kaycie Nabeta asks

Does the location of chlorophyll a in the thylakoid membrane have anything to do with its...

Carly from Colorado Springs asks

When a group of cancerous cells is compared to a group of normal cells, cancerous cells usually...

Julie asks

What is the chemical make-up of pear, banana and apple peels?

ALI from miami beach asks

1)What type salary does internal medicine make? 2)What kind of education is needed for internal...

Iain Hunter asks

What is the chemistry behind the method of cleaning silver where you place it on some aluminum foil...

Jeremy from Norwood asks

What component controls how data is written on a hard drive?

Ian Rosner asks

Can you explain the fourth dimension and state simply Einstein's Theory of Relativity?

Eddie from Toronto asks

I know the basic details of how an ionization smoke detector works, where particles enter the...

steve abel from Seattle, WA, USA asks

Can you explain the meaning of the phrase: " has cleared the neighbourhood around its orbit.” I...