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How does cosmic backround radiation soupourt the big bang?
According to the Big Bang theory, the the Universe started off as a compact region filled with a uniform glow from the extremely hot hydrogen plasma. As the universe expanded, the plasma and the radiation became cooler. Eventtually, it had cooled enough to allow stable atoms to form and these could no longer absorb the thermal radiation. The universe therefore became transparent instead of being an opaque fog.Due to the subsequent expansion of the universe, the photons which set off at that time have been red shifted from their original frequency to radiation in the microwave region of the spectrum (approx 160 GHz).
Most of the solar radiation absorbed by Earth's surface is later radiated back into space as which type of electromagnetic radiation?
Thermal IR radiation.
What is the ideal radiation budget?
Radiation budget is Earth's atmosphere. The Earth's atmosphere has more solar energy than it radiates back to space.
Do clouds reflect some of the sun's radiation back into space?
Yes, they do, to a limited extent.
The atmosphere is heated chiefly by radiation emitted by Earth?
The atmosphere is heated chiefly by radiation from Earth's surface rather than by direct solar radiation because about 50 percent of the solar energy is absorbed at Earth's surface. 30 percent is reflected back to space. 20 percent is absorbed by clouds and the atmosphere's gases.
What are the weaknesses of cosmic background radiation?
the weakness of cosmic back ground radiation as those radiation are left over of big bangs
How long does it take for a microwave radar signal to travel from Earth to the Moon and back?
Approximately 2.5 secs. A 'microwave' is an electro-magnetic radiation, in the same manner as light, and uv. radiation. Being an electro-magnetic radiation it will travel at the speed of light, which is 'c' = 3.8 x 10^8 m/s
How does cosmic backround radiation soupourt the big bang?
According to the Big Bang theory, the the Universe started off as a compact region filled with a uniform glow from the extremely hot hydrogen plasma. As the universe expanded, the plasma and the radiation became cooler. Eventtually, it had cooled enough to allow stable atoms to form and these could no longer absorb the thermal radiation. The universe therefore became transparent instead of being an opaque fog.Due to the subsequent expansion of the universe, the photons which set off at that time have been red shifted from their original frequency to radiation in the microwave region of the spectrum (approx 160 GHz).
What is needed for cosmologists to study the age of the universe?
The age of the universe goes back to the Big Bang. The Bang resulted in a release of energy in the form of radiation. Due to the expansion of the Universe since that time the original radiation has been red-shifted to the microwave range. The background microwave radiation is the best tool for studying the age of the universe.
Why there is cosmic microwave back ground and not cosmic light wave back ground?
That is interesting question! The light from all the sides of the universe is coming probably from the thousands of universes that are around your universe. They are far away from your universes. That is why the your space telescope can not locate the source. It is perceived as 'Glow'. That means the 'light' coming from there is 'practically' parallel. The exactly parallel light has to come from infinity. That is 'not' possible. Now the question is there that how the light turns up into microwave. Here goes the answer. You know that the light is affected by the heavy gravitational force. Light does not come out of the black hole due to heavy gravitational force. Light gets bent when going near by the black holes. That gives you the gravitational lens effect. Your universe is surrounded by three big bang masses, that has not exploded. When the light comes from the outer universes to you, it is comes through the area of too heavy gravitational force. So it is pulled back. So the energy of the light waves become less to turn them into microwaves. That is why you get the cosmic microwave back ground instead of cosmic light wave back ground.It is a psychological problems to imagine very very large things.
What do you know that supports the big bang theory?
Hello i am minakshi and the evidences that supports big bang theory is - 1-observations of cosmic back ground microwave radiation (COBR)which is done by cosmic background explorer(COBE) 2-the hubble laws that tells that the universe is expanding with the speed of 70km/sec for every megparsec 3-the presence of light elements ie. hydrogen and helium. 4-and the equation of einstein genral theory of relavity it also supportsbig bang theory. still there are many evidences which suports big bang theory
How do you replace a range hood with a microwave?
Remove range hood. Install microwave. Start to wonder why you did that. Put it back the way it was. Take microwave back to store and find out they won't take it back after you installed it.
What were people's first reactions to the microwave when it first came out?
I hope that it doesn't blow up or have a radiation effect on me. Hay, you know what maybe I will just back away slowly then... !!!!!!_RUN_!!!!!! ============== I remember my father, who is an engineer, being afraid of what might happen if the microwave was turned on without anything inside of it.
What is the single explanation for acceleration in the expansion rate of the universe and cosmic microwave background and the biggest void in your universe?
There are three puzzles in the astronomy. First is to why there is acceleration in the expansion rate of the universe. Second puzzle is that why there is cosmic microwave background. The third puzzle is that why there is big void in the universe. There is probably single explanation for all the three puzzles. The theory or the hypothesis is that your universe is surrounded by four pre big bang masses. They are in turn are surrounded by four universes like yours. They are in turn surrounded by four pre big bang masses. It is just like the three dimensional structure of the diamond. The total number of universes can not be guessed. But you can guess that there is limit to the number of such universes and they can give balanced gravitational force on each other. That part is beyond the scope of present discussion. So the four pre big bang masses have been pulling your universe towards them, soon after the onset of big bang. The net gravitational force by those four pre big bang masses was zero before the big bang. Once your universe got exploded in all the directions, all the pre big bang masses particularly and other universes in general, started pulling the pieces of your universe towards themselves. This happened due to the force of gravity by those massive bodies. So your universe has been falling on those four pre big bang masses. So there is no force like dark energy, which is pushing your universe away. The same theory can explain the cosmic microwave back ground also. The cosmic microwave background is in the form of "glow". That means you are unable to locate the source of light. Cosmic microwave background is not associated with any stars or galaxies. Such type of glow light indicate that the rays are practically parallel. That means the lens of your space telescope perceives the radiation as parallel radiation. So the source of radiation is probably too far, for the astronomical scale also. So the radiation has been coming from other universes, which are too much away from your universe. The light is too much "red shifted" to become microwave radiation. That means that this radiation has come through the areas of "very high" gravitational force. This very high gravitational force is generated by the three pre big bang masses. The radiation has been coming from all sides means that there are too many sources of light around your universe. The same theory also explain the presence of the largest void in the space. When our universe exploded in the big bang event, it started to expand in the space. As there are very massive four pre big bang masses are there to pull the universe towards themselves, the pieces of our universe will be directed towards them. That has created the biggest void in the space. It is roughly triangular as expected. The diamond shape can be easily explained by relative rotation of our universe to the position of those four pre big bang masses. The absence of any radiation also can be explained by the very high gravitational pull on the cosmic microwave back ground by those four pre big bang masses. There are probably total four such very big voids in our universe as per the theory. You have located the one, which is near to you. The smaller voids and clusters of galaxies are probably the echoes, that are produced due to four very dense masses of galaxies and biggest voids, that are present in the space, as expected.
How does a microwave work?
A microwave oven heats food in a process called dielectric heating. The molecules in the food, primarily water molecules, are polar molecules - meaning they have both a positive and a negative pole due to the distribution of positive and negative charges on the atoms. When they are subjected to microwaves, the molecules rotate as to align themselves with the electromagnetic field, much like a compass aligning itself with the magnetic field of the Earth. Microwave ovens alternate the electromagnetic field to reverse the polarity, causing the molecules to then rotate the other way. Using the compass analogy, imagine taking a magnet and doing circles around the compass; the needle goes crazy. This excited rotation of (mostly) water molecules generates molecular friction with other surrounding excited molecules, generating heat.A common misconception is that the molecules have resonance with the particular frequency used by a microwave oven; ovens that use different frequencies can cook just as efficiently. Another misconception regards the safety of microwave ovens and their radiation. The radiation used in a microwave oven is in the form of radio waves; this is non-ionizing radiation, meaning it is not the same kind of radiation that can cause cancer; that kind of radiation is called ionizing radiation - sunlight and nuclear radiation are examples. Therefore, a microwave oven's radiation cannot cause cancer or other ionizing effects. It's also commonly believed that standing too close to a microwave oven can be harmful, but this is not true. A microwave oven acts like a Faraday cage; the holes in the metal grill that's visible through the oven door are essentially invisible to the radio waves, thanks to their wavelength, so most of the energy is reflected back into the oven. Other sources of microwave radiation, such as cell phones, cannot heat objects like a microwave for two reasons: The relative power of the transmission, and the fact that a microwave oven concentrates nearly all of the energy into the food, whereas a cell phone's transmissions dissipate in all directions, leaving the tiniest fractions of that energy to be absorbed by the body.It heats up and thaws the food that you have placed in the microwave
Why would one's microwave cause their cable modem to reset and not come back up until the microwave is turned off?
This does not sound like a problem with your cable modem (unless it is integrated with a router), but with your wireless router. Microwave ovens emit radio waves in the gigahertz range. These waves interfere with the transmission of the wireless router on the 2.4 GHz or 5 Ghz range. There is little that you can do about it, except relocating the microwave oven or router and computer. == Addition: Household microwave ovens typically use 2.45 GHz radiation, which means it matches pretty well. However, the radiation from a microwave should not, or barely, leave the oven at all. So either you have your router within, say, 1 meter of your router (in which case you should move either), OR your microwave is broken, in which case you should replace it.
Who manufactures Cuisinart microwave oven?
Midea Microwave and Electrical Appliances MFG. Co., Ltd., a member of the Midea Group located in Beijiao, Foshan City, Guangdong, China. This information was obtained using the FCC ID located on the back of a Cuisinart Microwave and cross checked with the FCC Office of Engineering and Technology.
