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In the electromagnetic spectrum, the longest waves are created by lightning strikes. These extend down to low audio frequencies - 10kHz and below. Natural phenomenon called Whistlers and Sferics demonstrate this. These have been picked up by satellites near Jupiter, thus proving that there is lightning on Jupiter.
These Very Low Frequencies are also used for communicating with submarines, for the penetration of an E-M wave into seawater is proportional to wavelength. Naturally the bandwidth is very low, so only pre-programmed messages may be sent, but that is compatible with the security levels desired.
These communications are usually below 30kHz, and several transmitter stations are used. There is a list of such transmitters in Wikipedia under VLF. Several of these radiate powers of a few megawatts to counter losses in the ocean.
Vada Boyer
Wiki User
∙ 11y agoIn the electromagnetic spectrum, the longest waves are created by lightning strikes. These extend down to low audio frequencies - 10kHz and below. Natural phenomenon called Whistlers and Sferics demonstrate this. These have been picked up by satellites near Jupiter, thus proving that there is lightning on Jupiter.
These Very Low Frequencies are also used for communicating with submarines, for the penetration of an E-M wave into seawater is proportional to wavelength. Naturally the bandwidth is very low, so only pre-programmed messages may be sent, but that is compatible with the security levels desired.
These communications are usually below 30kHz, and several transmitter stations are used. There is a list of such transmitters in Wikipedia under VLF. Several of these radiate powers of a few megawatts to counter losses in the ocean.
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Does your hand emit long or short wave radiation and how do you know?
Long wave radiation in the form of infrared waves. These can be seen with an infrared camera.
What is the heat budget?
Is the balance between incoming short wave solar radiation (infra) and outgoing long wave solar radiation (TERESTRIAL) to avoid over cooling and overheating of the atmosphere.
Does the radiation emitted by earth's surface have longer or shorter wavelengths compared to solar radiation?
because they do not go to the same direction e.g the short-wave radiation heats the earth and the long-wave radiation heats the atmosphere.
Is the greenhouse effect the same as ozone depletion?
No, they are different. Ozone depletion results in more ultraviolet (short wave) radiation reaching earth's surface. The greenhouse effect results in more infrared (long wave) radiation being absorbed by the atmosphere.
Why the rainbow colors arrange like that?
You get it because of the wave length of the waves go from long to short
What is the heating effect of a medium that is transparent to the short wave length radiation of sunlight but opaque to the long wave terrestrial radiation?
ultraviolet rays
What is the primary function of the clear glass of the greenhouse?
the glass allows short wave lengths of radiation to enter, but reduces the amount of long-wave length radiation that escapes
What are the three types electromagnetic spectrums?
-- Long-wave radiation -- Medium-wave radiation -- Short-wave radiation
Is infrared radiation the longest wavelength?
No, in a vacuum infrared radiation has a wave length of between 10^-6 and 10^-2 while radio waves have 10^-1 and beyond and long radio waves have a length of 10^3 and beyond.
What is electromagnatic?
it is a range of different radiation with different wave length
Does your hand emit long or short wave radiation and how do you know?
Long wave radiation in the form of infrared waves. These can be seen with an infrared camera.
Can you classify ordinary light as ionizing radiation?
Yes, as long as there is an element or perhaps even a compound that would undergo some form of oxidation due to the absorbing of the particular wave-length then that wave-length could be termed ionizing radiation. I know for a fact that selenium oxidizes under yellow light.
Will electromagnetic radiation with a longer wave length travel through space slower than one with a shorter wave length?
The speed of electromagnetic radiation stays constant at a speed of 299,792,458 metres per second.
What has the longest wave length infrared radiation radio wave ultra violet radiation visible light micro waves gamma radiation or x rays?
Radio waves have the longest wavelengths.
What form of radiation is the shortest wave length?
The form that we call "gamma rays".
What form of electromagnetic radiation has the shortest wave length and highest energy?
microwave
How can cellphones make radiation?
Cellphones use microwave radiation to send and receive. Radios do the same, but with long wave or short wave.
