Edward from Mississauga, ON asks

I have a wierd thinking question regarding electricity. When we have a positive charge or a...

Abhinav from Delhi asks

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

Tsiadimos Nick from Athens, Greece asks

If we put a current-carrying conductor inside a magnetic field (i.e. between two permanent...

Amelia Singh from scarborough asks

How are rocks made? What are the different kinds of rocks?

Kiana Stewart from Blacksburg asks

If Virginia sees a full moon in the daytime then do places like Australia see no moon at night?

Sara asks

If the first dimension is length, the second is width, and the third is depth/height, what's the...

Ahmad asks

What are neutrinos and positrons?

Daniel from Singapore asks

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

Mauro Mavrinac from Ottawa asks

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

Neil O. from Oshawa asks

What can you tell me about the likelihood of a major solar storm in or around 2012, and how it...

Olivia from Sydney asks

I was wondering about planet orbit paths and if they change. I read that a change in the Earth's...

Courtney asks

How do mirrors work? What makes them reflect?

Gary John Walsh asks

What is a blue moon? When will the next one be? Are there ever two in the same year?

GRACE JAJA from the Internet asks

How long does it take radio waves to reach saturn?

Dan asks

How many galaxies do we know about and what are their names? When will the first human go to Mars?

Alexis Rolling from Nampa, Alberta,Canada asks

Why was Mars formed?

Shaun Carney from the Internet asks

What keeps electrons from eventually falling into the nucleus of an atom if they are attracted by...

from asks

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

Becca Thompson asks

What are the names and locations in the universe of known black holes?

Zulfikar Yassim asks

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

Ashé from Taree, Australia asks

Why is there no magnetic field in the centre of a bar magnet?

Kelly from Toronto asks

True/False. If the moon rises when the sun sets, is it a full moon?

Steve T from Kingston, ON asks

Light is refracted because its speed decreases when it enters a denser medium. Why does it speed...

Chad Seibert from Poseyville, IN asks

How come you can boil an egg in a paper cup over hot coals and the cup does not burn up?

Richard Allan from Calgary asks

I am looking for information on the molecular level electromagnetic resonance frequency of various...

Laurel from Belton asks

Can extraterrestrial matter carry unknown viruses and fall down to Earth in a form of "space dust"...

Garry Scott from Surrey BC asks

I have been trying to get an answer to: what kind of fire supression system may be on board the...

Jennifer Easterly from Sydney, NS asks

What happens to a bullet fired straight up into the air? Does gravity eventually slow it down so it...

Arnaldo from montreal asks

Is it possible make the aluminium transparent ?

Jeffrey Pope from Toronto asks

How fast does the earth move in its trajectory around the sun? (km-hr) What total distance does...

Ashley R asks

I can see how water and sound waves move in a wave motion, but how do light waves keep their shape...

Ben Carney asks

What is Ultraviolet Colorimetry Analysis? It involves passing UV light through a object and...

Kelvin C from Toronto asks

What exactly is Superstring and how does it work?

Marc from Liverpool asks

I would like to know if you could tell me a basic expalnation as to what is between particles of...

DeeCee from Indianapolis asks

How does vacuum insulation work and can an R Value be assigned to it? Does the depth of the vacuum...

Raymond asks

How did the universe begin?

Zoë from the Internet asks

Why is it easier to balance on a moving bicycle versus a stopped bicycle?

Randy Y. from Madawaska, Ontario asks

Yesterday my son (nine years old) told me that toilets in Australia flush backwards. I never was...

Christian from Peterborough asks

In the constellation of Pegasus there is an object called "Einstein's Cross". I understand that...

Matthew from Darwin, Australia asks

Why is quantum physics used to try and explain the future predicting behaviour of light as is shown...