Shape Definition and 610 Threads

I have heared people say that the universe has no size or shape. My problem with this is how can the universe be expanding or how did it come from an infinitaly small spot(Big Bang). If it is expanding because an infinitly large object can not expand from an infinitly small point. I think...

What shape is the universe presently believed to be? and Is it possible to visualise the shape? Any thoughts or good links would be very welcome.

Hey! I know that the horizonal and horizontal motion are unrelated, and the velocity remains the same (if there is no air resistance, friction etc)- this correlates with the whole 'shooting a gun and dropping a bullet at the same time, which one will hit the ground first? They will fall at...

Hey! I know that the horizonal and horizontal motion are unrelated, and the velocity remains the same (if there is no air resistance, friction etc)- this correlates with the whole 'shooting a gun and dropping a bullet at the same time, which one will hit the ground first? They will fall at the...

I just wanted to ask what is the state(solid,liquid,gas) and shape of electron? I know this is a weird question. But, electron has to be something? Please tell!

Quantum confinement. Size matters, but so does shape, at least in the world of semiconducting nanocrystals, report chemists at Washington University in St. Louis. Their findings, published in the August 2003 issue of Nature Materials, demonstrate experimentally that the shape of a...

The universe is infinite in size. All the theories about a warped universe are wrong. From where you are standing, hold a yard stick and pick any direction including up/down and imagine traveling out into the universe along a STRAIGHT line parallel to the yard stick. Let's say (just for fun)...

What is the most efficient shape of an air driven turbine? I want to achieve the greatest possible torque with the lowest volume of air. I hope I am posting this in the correct place. If not, any links would be helpful. Thank you very much.

There are many properties of EM Waves that can be seen as some kind of ordered distribution of energy in space and time. I can think of a few: - Polarization: Direction of the electric field in space. - Coherence: Some kind of phase relationship My questions are: - How does a single...

What is the shape of the universe? Judging by general relativity, the shape of the universe could be roughly spherical, and also roughly cylindrical. Another interesting thing is that the universe actually could be static and un-expanding or contracting. Imagine the universe like the earth...