Some electromagnetic waves are invisible and some aren't. Light is electromagnetic radiation, and we can see it. Radio waves aren't, and neither are x-rays or cosmic rays. All of these are electromagnetic waves.
The electromagnetic spectrum refers to the range of all possible frequencies of electromagnetic radiation, which includes radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays. Each type of radiation within the spectrum has different properties and uses.
We primarily use the visible light and radio waves parts of the electromagnetic spectrum. Visible light is essential for imaging and observation, while radio waves are widely used for communication and radar applications.
no You might say that, even though nobody else ever does. A change in the frequency of sound is perceived as a different 'pitch'. A change in the frequency of light is perceived as a different 'color'. In each case, even a small change in frequency is easily perceptible to the human sensory system. Who cares what word you use to describe it !
An EM wave is caused by an energy source, such as something as big as a supernova or something as small as an electron changing in speed. I would say the change in the energy level of the energetic particle that causes the wave determines the frequency of the wave. +++ Whilst you may be right about the quantum physics, the frequency of the wave is that of the energy source, be it in a star or a radio transmitter, driving it.
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i don't know but it did say that Thomas Edison did invent the safety goggle and i think he did invent theses safety goggles.
I am not sure, but from my studies on thomas alva Edison it would be his mom. all the websites i have researched say that when his mother home schooled him, he would not dissapoint her.
Yes he said that.
There are variations, but it is commonly believed that Thomas Edison said: "Genius is one percent inspiration, ninety-nine percent perspiration."
Thomas Edison invented the first electric power plant.
I am guessing you are trying to say when did Thomas Edison invent the light bulb. He invented the light bulb on October 22nd, 1879.
Usually when one says light waves, one is referring to Visible light. Any light wave, and hence visible light, is an electromagnetic wave. As an electromagnetic wave, it is also a transverse wave. The oscillating electric and magnetic fields of an electromagnetic wave in free space are oscillating with a direction perpendicular yo the direction of movement of the wave. The velocity of an electromagnetic wave is the sped of light. This is a sensible things since light is an electromagnetic wave. In a vacuum all electromagnetic waves travel at the same speed. In matter, if the matter allows an electromagnetic wave to propagate, the speed is slower than the speed of light and in optics we say the speed is reduce by the index of refraction, v=c/n. Electromagnetic waves, like all waves, have velocity, wavelength, frequency, amplitude and phase. As with all transverse waves, electromagnetic waves can be polarized, or we say, have a polarization. Electromagnetic waves have electric and magnetic fields that are sinusoidal in space and time. These electromagnetic fields satisfy Maxwell's equations, i.e. the fundamental laws of electromagnetism. There is a quantum version of electromagnetic theory called electrodynamics and that theory is the necessary edification of Maxwell's equations to describe the quantum nature of light. Thus, even when we are discussing light as photons, it is correct to say light is an electromagnetic wave as such is manifested within quantum electrodynamics.
Yes he said that.
Thomas Edison made his money by inventing new products and buying patents for them. A patent is when go to the government and ask for them to be singed to say that you invented it. When a company uses your invention they have to pay you.
Thomas Edison Only went to school for 3 months then he was home schooled because his teacher called him a idiot
You did not say in which country, but the answer is probably Thomas Alva Edison.