Jefrey from KL asks

What is the purpose of polyvinylpyrrolidone in the making of hard capsule gelatin. What is the...

Linda O\'Neill from Dartmouth asks

How can you define the pressure of 5 g. on a person? This would be done with the fingers. I am...

Sheila Hart asks

How can you detect a chemical in the human body even after it has passed through? For example,...

Darren Mewha asks

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

Eddie from Toronto asks

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

Lenny Rivera from New York asks

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

Tim Sullivan asks

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

Katie Harvill from Tuscaloosa asks

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

Iain Hunter asks

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

Lisa Fondelius from Borås, Sweden asks

If pepsin digests proteins in the stomach, how do orally taken vaccines work?

Lori Lancaster asks

Why does a saturated solution of calcium acetate gel when either ethanol or isopropanol is added to...

Emma from the Internet asks

Why has Aluminium only recently been extracted from its ore?

KENNETH HICKFORD from LONDON ENGLAND asks

(1) What quantities of the earths atmosphere are lost to outer space over a given time? (2) how...

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. ...

Andrew Hope from Gloucester asks

My son, James, and I cannot agree about the recoil of a gun. I believe that if a gun is fixed in a...

Johnny from Mississauga asks

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

Tsiadimos Nick from Athens, Greece asks

I know that superconducting wires present their zero-resistance properties at low temperature...

Saw Mui asks

Why does the Periodic Table of the Elements have two separate tables - one above and one below?

christina from the Internet asks

Why are portable phones called cellular phones? How do they work?

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...

Stef asks

How are minerals used in the production of Canadian coins?

Teresa G. Nelson from Alford asks

My father was exposed to massive radiation exposure before he fathered two out of three children....

Sandra Diaz asks

What wind speed would be enough to blow somebody away?

Christobell Bison from Sudbury asks

Can Ozone be created? And if so, is it possible to patch up the Earth's protective layer of Ozone...

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...

Karan Rustagi from Ontario asks

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

Jason Kang from Thornhill asks

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

James McCarty from Frankfort, Kentucky asks

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

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...

Zach asks

How were the organelles in the cell named?

Gordon from Oakville, Ontario asks

I was studying for a science exam and stumbled across a chapter that covered energy. The chapter...

nohjin asks

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

Michael Baird asks

Can you help me with a wonderful magic trick I performed as a boy? I made a silk rose change...

Marty Ellis from Pittsburgh asks

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

Thalia Parcs from Toronto asks

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

Leo from Montville, NJ asks

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

Natasha Jackson from leaf river asks

How many skin cells would be in a square inch?

david caron from Toronto asks

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

Charl Mai from Vancouver, Canada asks

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

Rob Pease asks

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