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The air conditioner was develop by Willis Carrier in 1902 Its original purpose was not to cool homes What was its purpose?
Wiki User
∙ 13y ago
The original purpose of air conditioning is the same as it's purpose today, which is to keep people and animals cool. Without air conditioning, the population of many Southern states would be much smaller.
Wiki User
∙ 9y ago
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What is the role of a diode in an am radio?
Whenever a signal with components at several different frequencies flows through a diode,the diode causes "mixing" among the frequencies ... for every pair of frequencies in the originalsignal, two new frequency components are created: one at the sum of the original two, and oneat their difference. That is, if the original signal's wave has frequencies 'A' and 'B' in it, and it'spassed through a diode, then the output wave will have four frequencies in it: A, B, A+B, and A-B.The original signal that enters an AM radio is the one that comes down from the antenna. If it'san AM radio signal, then it consists of three frequencies: Carrier, Carrier+music, and Carrier-music.There are 3 pairs of frequencies in this set. For each pair, the diode creates new signal components,at the sum and difference of the original 2 frequencies. So with 3 different frequencies before thediode, we have all of the following frequencies coming out after the diode:1). Carrier2). Carrier+music3). (Carrier) + (Carrier+music)4). (Carrier) - (Carrier+music)5). Carrier6). Carrier-music7). (Carrier) + (Carrier-music)8). (Carrier) - (Carrier-music)9). Carrier+music10). Carrier-music11). (Carrier+music) + (Carrier-music)12). (Carrier+music) - (Carrier-music)To see what we've got now, let's go through the list and simplify the expressions:1). Carrier2). Carrier+music3). 2xCarrier + music4). -music5). Carrier6). Carrier-music7). 2 x Carrier - music8). music9). Carrier+music10). Carrier-music11). 2 x Carrier12). 2 x musicLooking through the list, we see that 9 of the 12 products are up around the frequency of theradio carrier. It's easy to filter them out and throw them away, leaving only the followingthree component signal frequencies, in the audio range:4). -music8). music12). 2 x musicMathematically, positive and negative frequencies are the same signal, so components #4 and #8can be added to produce a component with double the amplitude (volume) of either one, whichonly leaves the component at double the frequency of the music. It's in the range of legitimatemusic frequencies, so we can't get rid of it completely. But it's weak to begin with, when it comesout of the diode, and it's competing with the double-amplitude component at the real-music-frequency,so it doesn't trash the desired signal too severely. What we're left with is the componentsequal to the frequencies in the original music program, with some unavoidable distortionon account of the presence of the low-level second harmonic.The purpose of the diode was to perform the mixing of frequencies, so that we could separatethem by filtering, discard the ones that were used only to transport the music to us throughspace, and keep the ones we want to send to the speaker or earphones.
What was the original purpose of prince Henry the navigators journey?
Asia and also chinaa
What is Modulation and what is the aim of modulation?
Modulation is any of several means of encoding an information carrying signal onto a carrier of fixed frequency. The purpose is to allow the information to be transported long distances.
What was the original purpose for the notre dame de strasbourg?
Notre Dame de Strasbourg is a cathedral. It was built as a place of worship for Catholics.
If carrier is suppressed then what is the use of carrier in modulation?
If the carrier is suppressed, then the carrier is only needed at the modulation stage, in order to generate the sideband(s), and it needs to be regenerated at the demodulation stage, in order the recover the original signal. The purpose of suppressing the carrier is to increase the power to the signal-carrying portion of the transmission, by eliminating the "wasted" power in the carrier. This is done at the expense of complexity in the transmitter and receiver. More insight: Actually the added complexity is mainly at the receiver side. The two common methods for the carrier recovery of its receivers are: 1) squaring the DSB-SC signal then dividing by two. 2) the "Costas Loop". The third method, not known by IEEE yet, is "Kerim Loop" that uses a conventional PLL (VCO, phase comparator and an RC filter). It is therefore very simple to be implemented since it doesn't require selective filters of any kind. And it can be integrated to produce low cost AM receivers that recover the baseband signal for any AM modulation index, up to infinity which is the case of no carrier (DSB-SC). These new AM receivers would therefore have also both the features of the synchronous demodulator and the Automatic Frequency Control (AFC) function. Note: Since 30 years, to let "Kerim Loop" concept be known globally, I had to pay a good amount of money first! So, when necessary, I took advantage of it in my private links only.
The air conditioner was developed by willis carrier in 1902. its original purpose was not to cool homes. what was its original purpose?
He invented the air conditioner because a printer in New York had a problem. Their color prints kept warpping and the print would be useless.
What was the original purpose of meditative techniques?
Originally, they were intended to develop spiritual understanding, awareness, and direct experience of ultimate reality.
What does scarp mean?
Scrap is something that is no longer fit for its original purpose so you recycle it. It could be something as simple as a tin can or something as complicated as an aircraft carrier.
What is the purpose of having a troop carrier?
A troop carrier is a United States air troop forces unit. The purpose of having a troop carrier is air transport for the allied divisions in Europe theater.
What is the purpose of concentration meditation?
The purpose of concentrative practices is to learn to focus one's attention or develop concentration. When thoughts or emotions arise, the meditator gently directs the mind back to the original object of concentration.
What is the original purpose for the dryer?
what is original purpose for the dryer. by xavier jones
What was Columbus original purpose of his journey?
His original purpose was to get to india for gold.
What is the purpose of the fraternity?
the one purpose of fraternitiy is to develop the brotherhood
What was the original purpose of estevanico's journey?
Estevanico's original purpose of his journey was to search for gold
What is the purpose of military traditions customs and courtesies is to develop what in the military?
purpose of military traditions customs and courtesies is to develop in the military service?
What was the original purpose of Facebook?
The original purpose of facebook is to communicate our friends and to see the information of of your friends
What is the crip purpose?
Their original purpose was to protect their community
