Mauro Mavrinac from Ottawa asks

Given: a horizontal rigid tube with one end on an axis at a constant rotation. Insert a solid ball...

Matt from Ottawa asks

Knowing the basic functions of magnets (dipoles, domaines...) I still don't understand WHY two...

Roman asks

How do scientists detect nutrinos when they have no mass and no charge?

John D. Miller from Belmont, NH asks

I read that one can get a wider range of colors or shades if one uses the secondary colors:...

Daniel from Singapore asks

Is there such thing as an Ice Bullet? A bullet that melts into the target so that there will be...

Zulfikar Yassim asks

A black hole is created when a planet collapses and forms into a powerful vacuum sucking everything...

Leo Hong from London Ont. asks

1. If the earth's population is about 6.2 billion now and it will double lets say every 35 years,...

missy cunningham from portsmouth asks

Every time we go to our local grocery store and get a buggy that does not have a chain hanging from...

Mohsen Omrani from Tehran, Iran asks

I am interested in Computational NeuroScience, particularly in Colour Vision, Land's Effect, and...

Scott Livingston from Charlottetown, Prince Edward Island asks

Looking for pictures of Tranquility base or any of the other lunar landing spots on the moon taken...

Jim from Yorkton asks

Why does ice make pop fizz? Shouldn't it fizz less since the gas is being cooled?

Rudolf Olivier from Gauteng, South Africa asks

Water is made up of H2O. H will burn and O2 will burn. Why does water not burn?

Meghan asks

Do you have any information about Canadian scientist Dr. W. A. Smirnoff? He works on the spruce...

Anton St-Jacques from Kingston asks

I heard that all cells only come from existing cells. If this is true, how did the first cells...

Dr. X from Cornberry asks

I have made a theoretical discovery in my studies. It concerns vibrations of frame of reference in...

Tony Kirk asks

Would sulfuric acid have a long term effect on an engine and eternal parts of an car if a bottle...

Jonathan from Brooklyn asks

I want to convert a conventional gas engine to run on hydrogen gas. How would I go about this?

Base from Ontario asks

Why is vegetable oil viscous?

TINA from the Internet asks

How much chorline is added to drinking water? Why?

Linda Sanders from Catonsville MD asks

Why does my coffee flow more freely from a to-go cup when there are two holes in the lid instead of...

tina from the Internet asks

Will pea seeds germinate slower in a liquid substace other than water? why? I am conducting an...

Andy (Dionne) Setlow from Madison, Alabama, USA asks

I have long struggled to understand why the temperature of various wavelengths track so closely...

jacqui from Stockleigh Pomeroy asks

Explain recessive gene disease and what happens to the DNA to cause parents to be carriers.

deepak singhal from Bangalore (India) asks

Before getting married should we consider blood groups of both individuals? Is there any...

Karen from Ottawa, Canada asks

Why do your fingernails grow a lot faster than your toenails?

Peter Griffin from Beaufort asks

How does the type of liquid effect the way it holds heat?

Gary Kolling asks

What term is applied to all processes and physical measurements carried out under conditions of...

from asks

I would like to know the basic principles of work of a solid state gyroscope, such as the ones used...

charl mai from Vancouver, Canada asks

Among the techniques that are being used to determine the identity of an unknown person, for...

Abhinav from Delhi asks

Why do all planets revolve in elliptical orbits around the sun? I mean in nature there existis...

Sharon Johnson from Tobermory asks

Can decomposing cedar wood chips or household compost cause environmental problems in surrounding...

James from Hamilton asks

If 'O' (oxygen) is an element and CO2 is a compund...what is O2, or Cl2?

Satya from Scarborough, Canada asks

Which part of the body has highest ph value?

Paul Hosking from Brisbane, Australia asks

We are having a debate at work that we hope you can settle. The father of one of my workmates has...

Matt from Mississauga asks

I have been reading and learned that electrons flow from negative to positive in the external...

Charcoal from the Internet asks

What makes classifying dogs in breeds different from classifying humans in races? I thought that...

Andrea from Sydney, Australia asks

I understand that when toilet paper gets wet eventually the cellulose fibres break apart thus...

Jonathan Weiler asks

If atoms are so small, how can we split them?

Yossi Truzman from Ra`anana asks

In our breathing system we have two coenzymes NADH and FADH2. Why do we have two coenzymes? And why...

Steve from Honolulu, HI asks

I'm interested in commerical lightsticks... I understand it is hydrogen peroxide and oxalate ester...