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Ian Rosner asks

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

Gerald Taylor from El Dorado, Arkansas asks

I was wanting to make my own acid stain for concrete. I have muriatic acid and heavy metals...

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...

Mohammad from Toronto asks

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

Tony from Melbourne asks

In my recent science project, I tried discharging batterys in the freezer, fridge and room. The...

Ken Cooke asks

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

Donald Plourde from East Mapleton asks

If I have two 6 volt lead acid Batteries with a 400 ampere hour charge in each one. And I wire the...

Katie Harvill from Tuscaloosa asks

1)How does prenatal exposure to sex hormones influence behavior later in life? 2)What are gender...

Darren Mewha asks

Why are clouds flat on the bottom? Is it because the air is somehow denser on the level below the...

Kashif from Toronto asks

Why is propylene glycol not an alcohol? Same for glycerol. Why don't they evaporate and smell like...

Jonathan Weiler asks

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

Rob Pease asks

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

Jason Kang from Thornhill asks

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

Johnny from Mississauga asks

In math class, my teacher has been frequently making references to what I've mentally labelled, as...

J. Etter from Eureka asks

Have any cures for any specific viruses been found? By cure I mean the ability to rid the body of...

david caron from Toronto asks

What is the energy required to split H2O, (joules), and the energy released from combusting H2 +...

Leo from Montville, NJ asks

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

Jeremy from Norwood asks

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

James McCarty from Frankfort, Kentucky asks

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

Mary Phipps asks

Is calcium carbonate (ground limestone) biodegradable? Will it break down during composting? I want...

Kaycie Nabeta asks

Can you explain where the "extra" ATP comes from in photosynthesis? As I understand it: 24 ATP...

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....

Thalia Parcs from Toronto asks

I have noticed in Toronto for the past two years, that the weather has been abnormally cloudy in...

kirst from the Internet asks

What everyday appliance uses electrostatics?

Tim Sullivan asks

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

Iain Hunter asks

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

Peter Schmuecking from Roetgen nr Aachen/Germany asks

My son, 13 y, has found a really good idea to prove the four colour map problem without computers,...

Kim Yonda from Winnipeg, Mb asks

I'm doing a project on mercury in water. I was wondering if and how you get mercury out of lakes. ...

Lenny Rivera from New York asks

I am looking for general inofrmation about pangaea the supercontinent. If pangaea was a super...

Karan Rustagi from Ontario asks

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

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...

Mark Brooks from London asks

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

Joel from Australia asks

What is the chemical makeup of an apple?

Payal from Buffalo asks

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

Gerhard asks

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

Ryan from Toronto asks

I am in grade 7 and attempting to do a Science Fair Project. I would like to know how I could test...

ALI from miami beach asks

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

Marty Ellis from Pittsburgh asks

Can a sintered ore magnet be re-magnetized in a different configuration of its poles? Does it need...

Sandra Diaz asks

What wind speed would be enough to blow somebody away?

stephanie from windsor asks

Why can't spruce trees compete with maple trees in more southern forests? What advantages do the...