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An actinograph is a recording actinometer, a device used to measure the heating power of electromagnetic radiation.
The most common such devices are the seismographs and Hydraphones.
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Visible radiation (a.k.a. light) is the wavelengths we can see. Infrared radiation lies down below the red end of the spectrum that we can see, hence infra red. But we can make device that both generate and detect infra red radiation. Your TV control works this way.
Electromagnetic (EM) radiation includes all forms of radio waves from low frequency, AM radio, FM radio, TV frequencies, short wave frequencies, cell phone frequency/radiation, radar and microwave radiation and higher. These are all generated by some sort of antenna and can be detected and measured by the antenna. EM radiation exists naturally from various sources and mankind has known about it since the late 1800's when we first started learning to produce it and use it for communication.In the 20th century we learned that at very high frequencies (also called very short wave lengths, or microwaves) at high enough power levels it can be used to heat things up and we have been using it for heating foods and cooking.EM radiation used for communications is considered by most scientific and medical authorities to be safe and useful.However radiation from microwaves are known to be harmful and microwave devices are required to provide a locking door (as well as shielding on the doors' window) to prevent the device from operating with the door open.Their is controversy concerning the radiation from the high frequency used by cell phones. The radiating antenna is in very close proximity to the ear and the brain. Once side claims it is hazardous with some proof and the other side insisting their is insufficient proof of anything. There is also statistical research alluding to the fact that the frequency of cancer cases corresponds to the increased presence of communications radiation.
Different devices are used to detect different frequency ranges of electromagnetic waves. You simply can't use the same device to detect x-rays, than you would use to detect radio waves, for example.
to detect radiation, a device such as Geiger- Muller tube is used
An actinometer is a device used to maesure the heating power of electromagnetic radiation.
There are lots of different kinds; you'd need to be more specific.
An actinograph is a recording actinometer, a device used to measure the heating power of electromagnetic radiation.
Mizzy paste is quite good when attached to a biscuits
Each frequency will differ with each mobile device. Frequency is known as the number of times at which an electromagnetic wave oscillates per second.
"Laser" is a device that's used to generate very pure electromagnetic radiation,at one single frequency and with all of its photons vibrating in the same directionat the same time.Many different frequencies can be generated by different types of lasers.Infrared radiation is just one of them.
The most common such devices are the seismographs and Hydraphones.
A geiger counter.
Pyrometer is the device that is used to determine the heat radiation of an object. It can also give a temperature reading.
MASER stands for Microwave Amplification by Stimulation Emission of Radiation. It is a device that produces coherent electromagnetic waves through amplification due to stimulated emission of radiation.