What Was The First Machine?
The earliest practical steam-powered machine was a steam jack driven by a steam turbine , described in 1551 by Taqi al-Din Muhammad ibn Ma’ruf in Otto…
Computers and Electronics
25095 articles · Page 30 of 2092
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Why Is The Energy Of An Electron Quantized?
1. Quantized energy means that the electrons can possess only certain discrete energy values ; values between those quantized values are not permitted…
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When Should I Replace My Projector Lamp?
Most projector lamps last between 1,500 and 2,000 hours , but some can last up to 5,000 hours. Most projectors will need one to two bulb swaps during …
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Why We Called FET As A Voltage Controlled Device?
a fet is a voltage-controlled device because the current between the drain and the source is controlled by the voltage at the gate with reference to t…
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What Is The Direction Of Magnetic Lines Of Force In A Bar Magnet?
Thus, the magnetic field lines point away from the north pole of a magnet and toward its south pole . Figure 20.9 The black lines represent the magnet…
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What Is The Default Windows Internet Browser?
Your PC running Windows comes with Internet Explorer already installed. If you’re having problems opening Internet Explorer, make sure it’s set as you…
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What Sort Of Information Should Not Be Sent Via Email?
“ Credit card numbers, your frequent flyer number, any record locator, transaction number , all of these things, unless specifically asked of you, sho…
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What Is The Direction Of Magnetic Field Lines In A Magnet?
The lines of magnetic field from a bar magnet form closed lines. By convention, the field direction is taken to be outward from the North pole and in …
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What Type Of Information Includes Personal Payroll Medical And Operational?
Its classification level may rise when aggregated. What type of information includes personal, payroll, medical, and operational information? Sensitiv…
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What Is Register In A Language?
In sociolinguistics, a register is a variety of language used for a particular purpose or in a particular communicative situation . What is register i…
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When Parking On A Curb Or The Side Of The Road It Is Not Necessary To Use The Turn Signal?
It is not necessary to signal if you are pulling to the curb to stop. The reference point for stopping 6 inches from a curb is over the right headligh…
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What Is The Importance Of A Graph?
Graphs are a common method to visually illustrate relationships in the data . The purpose of a graph is to present data that are too numerous or compl…