Why telescopes that can detect different types of electromagnetic waves used to observe the universe?
The satellites orbit shape with several telescopes in the world. These telescopes to detect different types of electromagnetic radiation. Why telescopes that detect different types of electromagnetic waves used to observe the universe?
First, Electromagnetic waves cover a spectrum. He is a man of success that the scale (the scientists) developed. All electromagnetic waves propagate through space at 300,000 miles a second. Thus, the waves have a wavelength and frequency (many cycles to propagation by second). Rate = 300 million euros (m / s) / wavelength (m) or wavelength = 300 million euros (m / s) / frequency (Cycles / s). Now a new name has been adapted to the often called "Hertz" (1 cycle / s = 1 kHz). If you look at any what input physics major work, the "electromagnetic spectrum is given in Annex. For long wavelengths, radio waves (several kilometers 0.3 cm, and 30) can be detected ("received" is the word) by the radio telescopes using a particular directory, techniques and technologies. Microwave (0.3 to 0.5 mm or 0.0005m) the radio, even, but with slightly different techniques can also be received. All communications satellite systems they use. Since our atmosphere is absorbed to a large extent, we must place itself above the microwave antennas on the satellites. Then is the far infrared (FIR) wavelength in the region 10 / 1000000 (one millionth of a meter is called a micron, u |), there several new techniques. Nearly one quarter of a century and JC Bose made a pioneering work to which he was awarded the honor "now" co-inventor of radio. But this work must be resumed. Then comes the mid-infrared. It is also the case here. In the near infrared (NIR) to 0.7 microns Work is in progress. This band is mainly for "Remote" for electronic equipment. But in all infrared (FIR, MIR, NIR) applications Space is limited, except to take pictures with the filters, because the molecules in the atmosphere interact freely production and IR absorption, as IR is basically "The waves of heat. You should go above the atmosphere of a job well done. Fiber "Optics" turns 0.8 | U and is the backbone of optical communications. Then comes the workhorse – the band from 0.7 to 0.375 micron in which we see the colors (VIBGYOR near end Red violet 0.375 microns and ends at 0.7 microns). This is called the visible region. Hubble is devoted to this region of the spectrum. Ojo is the receiver Senior / sensor for this part of the electromagnetic waves. Almost all our knowledge of space is due to the window in the electromagnetic spectrum 'And is called the optical window. If you are looking for a star or Galaxy (either as a prosthesis Telescope or without them) or see it in all fantastic colors, it falls into the space (astronomy) studies. 99% knowledge, work, analysis, theories of redshifts are all in the optical domain, a single band of the spectrum, with almost a "octave band width" (meaning that the ratio between the highest to the most short wavelength is 2: 1). More than 0,375 microns (as I told you one micron is one millionth of a meter) Ultra Violet have again divided UNV part, MUV & FUV merge with soft X-ray of a nanometer (billionth of a meter). Some UV appliances are sent to all missions of spacecraft such programs. X-ray: A Chandra telescope is now in orbit around the Earth to take images in wavelengths (I suppose), a fraction of a nanometer. Then comes the "Gamma rays from the sensors are complicated and expensive. These high energy and radiation energy even higher, with a high-energy radiation easily interact with matter in our atmosphere and energy is transferred to the excitation of these molecules decimating the information "content. Therefore, we must go far beyond the atmosphere to build a telescope." Here (in this spectrum electrons have no independent existence, as it is combined with CT produce gamma quanta). Beyond this area are extremely high energy particles expressed in units of energy (which we need to move from naming millionths billionths trillionth). The whole spectrum (in my opinion, at wavelengths ranging from the region known 10 ^ 6 meters to 10 ^ 12 meters, " a series with a ratio of one end of the 10 ^ 18 18 or call is on 60 / 
and of each region or octave has a different technique and equipment. Can not have the same antenna to receive television signals, CB, satellite communications and receiving data, right? My effort is to emphasize Here is the domain of "electromagnetic waves. The idea of a telescope (optical, infrared, visible, UV or radio) is achieved. I do not want to risk it, if it is another story. I have not yet preliminary details.
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