Recent content by Ralphonsicus

Ah yes there's a problem. But I think I remember reading that they can indirectly cause Cherenkov radiation? I think an electron was involved.

If I'm correct, Cherenkov radiation is caused when particle moves faster than light in a certain medium. Can neutrinos, say, traveling through water, cause Cherenkov radiation then? Or is there a property of neutrinos which prevents that?

As objects approach the speed of light, according to Special Relativity, they gain mass. But when this happens, what does the mass come in the form of? The first thing that comes to mind would be matter and antimatter. But if this is so, wouldn't they just annihilate, and do so in a fury as...

How is antimatter created? I'd like an in-depth answer because it is never really mentioned, the physics behind its creation. All that is ever said is, ''after accelerating particles and colliding them at the LHC...''. Thanks.

The question is as follows, How do you determine the frequency at which different types of molecules resonate to, such as water molecules to microwaves?

Having trouble understanding? Drakkith seemed to cope just fine. Thanks, just what I was looking for.

How does one go about massing an object less dense than air (like a balloon), because gravity can then not be relied on?

Let's say I have a magnet inside a coil of wire. If I spin the magnet for a 10 second period, twice, the second time spinning it significantly faster, will more current be induced during the second period? And would this apply to generators in wind turbines, etc.? Thanks.

Is there a way to find out by how much a temperature of 20 degrees Kelvin (or Celsius, same magnitude) will drop, with time? Let's say the 20 degrees is water, and there's 100ml of it.

The question really explains the primary question but I have another quick one as well. How come sound isn't measured in Joules if it is a form of energy?

So there is no limit to a photon's energy? And when I say light emitter, I mean like the equivalent of tungsten in a light bulb. For something to emit x-rays/gamma rays, what temperature must they reach?

Maybe I phrased it wrong. Imagine that Liam wants to stay hidden behind Gary as Gary walks, while Liam himself remains 40m away, and Gary 20m?

Is the ionization energy of Francium to high to be achieved with just one photon? And another quick question, how hot must the light-emitter get before it begins to emit x-rays, and then how hot for gamma rays?

Say I am at point X. My friend, Gary, is 20m from X, and my friend Liam is 40m from X. Gary is traveling at 5 metres per second in a circle around me, remaining 20m from X. What speed must Liam travel at to appear, to me, to be traveling at the same speed as Gary? Is it 10 metres per second or...

If a particle gives off its own light, how can we never know its position as well as its momentum, as we can see it and thus measure its speed, and know its velocity? How does the Uncertainty Principle treat this circumstance?