/sci/ - Science & Math

>>6723032
look for electromagnetic waves on hyperphysics

>>6704167
>1-(5/6)^t

Thanks guys this was really bothering me.

>>6687461

>how fast some type of 2 dimensional object is rotating in 3 dimensional space

wut

If you're referring to the electric/magnetic field map of a moving light ray, it's just a diagram to show how the fields oscillate relative to each other.

>what about gamma rays what are they?

Also electromagnetic radiation.

>does gravitons travel among waves?

There's no solid evidence that gravitons even exist.

>>5077214
I'm guessing you're a mathfag?

EM-waves are graphed with two dimensional numbers (complex numbers). It's essentially a complex plane + a time dimension. One of the axis is the electric field the other is the magnetic field.

Discuss:
http://integratedpost.blogspot.com/2012/08/objects-vs-concepts.html

I know this is a wave, but a wave is what *something* does, not what it is. So, what is waving in this picture?

Electric and magnetic fields?
field
Noun:
>A field of force that consists of both electric and magnetic components, resulting from the motion of an electric charge and containing a definite amount of electromagnetic energy

But force and energy are not objects with shapes or physical structures, they are concepts describing the interactions that take place. "Force" is what happens to objects- it is a conceptual relationship, not the objects themselves.

So how could something be made up of concepts? Waves, forces, fields, energy, all concepts with no structure whatsoever, yet that's the structure of light? We might as well say that "the structure of love is justice." It says nothing about what physically exists.

Can somebody help me out here?

Ok, Sci... I have a serious question....

If one were to implant tiny particles of metal in ones brain, could one conceivably create current flow or voltage between these bits of metal, through the neurons, with electromagnetic radiation?

>and could someone (in semi-technical terms) explain to me what light actually is?

Imagine you have a ping-pong ball being bounced back and forth between two players at a constant rate. Now imagine that this ball has an electric charge on it. Because the ball it charged it gives off an electric field, but since it is bouncing back and forth the electric field travels away from the ball as a wave. Another consequence of the ball traveling between two points is that it is an electric current and will produce a magnetic field perpendicular to the electric field. In this way an electromagnetic wave, also known as light, is produced.

An electromagnetic wave is a wave that oscillates between a magnetic field and an electric field. When we measure the frequency of an EM wave we are measuring the frequency of this oscillation.

>>2171409
>After all, if you put two perfect mirrors facing each other, the number of reflections is finite.
>assuming sarcasm, implying that the infinite hall-way is actually infinite and not bounded by a cosmological horizon.
Tell you what, start counting the reflections and when you get to infinity let me know. Also, if you could get me data on how far each iterated reflection is relative to the middle, I would greatly appreciate it.

I think we want natural units.

http://en.wikipedia.org/wiki/Natural_units

Light is electromagnetic radiation as it is a wave that is made up of a changing magnetic field and a changing electric field which are perpendicular to one another

(gif related)