Physics

What are cosmic...

Physics

How long does it take radio waves to reach...

Physics

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

Physics

If atoms are so small, how can we split...

Physics

Is it possible make the aluminium transparent...

Physics

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

Physics

I have heard that some one discovered that the atom is actually made up of sound waves. Is there any truth to...

Physics

What are the names and locations in the universe of known black...

Physics

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

Physics

I have a wierd thinking question regarding electricity. When we have a positive charge or a negative charge, we can draw the electric field lines, or...

Physics

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

Physics

Why is it that we always can draw nice electric field lines and magnetic field lines relative to certain charge sources or current sources-and yet...

Physics

What is Ultraviolet Colorimetry Analysis? It involves passing UV light through a object and analyzing what comes out the other...

Physics

I am quite confused with temperature scales! i would like to know the link between the degree celsius scale and the Fahrenheit scale. My question is:...

Physics

What happens to a bullet fired straight up into the air? Does gravity eventually slow it down so it comes back to Earth? And if so, will it...

Physics

How did the universe...

Physics

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

Physics

I would like to know if you could tell me a basic expalnation as to what is between particles of gas for e.g is there any space in between air in our...

Physics

I'm writing a science-fiction novel and need information about black holes, gravitation and nothingness. Unfortunately I have no scientific...

Physics

Can extraterrestrial matter carry unknown viruses and fall down to Earth in a form of "space dust" entering our orbit, and the atmosphere as...

Physics

I can see how water and sound waves move in a wave motion, but how do light waves keep their shape when they move through a vacuum, where there is no...

Physics

What causes asteroids to burn up once they enter earth's...

Physics

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

Physics

What is a wormhole? How does it work? How is a wormhole created? Is it possible to survive going thorugh a wormhole and can an artificial wormhole be...

Physics

Why does sound get through a surface like a wall better than light? If you use a curtain they both get through. If you use a drywall/2 by 4 wall the...

Physics

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

Physics

What exactly is Superstring and how does it...

Physics

Why rainbow is a...

Physics

Light is refracted because its speed decreases when it enters a denser medium. Why does it speed up when it leaves that medium? How does...

Physics

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

Physics

In the constellation of Pegasus there is an object called "Einstein's Cross". I understand that it's a sort of cosmic mirage with the idea of...

Physics

How are tides and eclipses...

Physics

I have a question about black holes. If light/matter are drawn towards a black hole are they not accelerated to speeds faster than light from...

Physics

Yesterday my son (nine years old) told me that toilets in Australia flush backwards. I never was aware of this nor did I believe him. I did some...

Physics

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

Physics

How does the temperature of a liquid effect its refractive...

Physics

Do you think scientists will ever create a wormhole? And if they are able to create a wormhole how will they control it so as to take us places...

Physics

I was browsing the Cornell University Astronomy web site and I read in an answer to a question posed by a school teacher that one should be able...

Physics

I am trying to find out how much light curves at the Earth's surface due to gravity. Ideally, how much does light drop over a given...

Physics

How do we know that universe is 13.5b years old, if time is not constant? The idea is the closer you are to the gravity source the slower the...

Physics

I understand that even in a finite volume, there are an infinite number of points. Why does the Planck area not apply...

Physics

What is the reason for earth acting like a magnet? The interior is spherical so why is the earth magnet bar shaped? And what is the reason for it...

Physics

Assuming the speed of light, c, what would be the distance of a photon traveling in empty space be in one second? I know this is c,...

Physics

When two open metal tubes on the roof of the car for the purpose of use as a roof rack, are travelling or reaching a certain speed, let's say...