Mather wanted to find out the answer. Thus, Leisure Suit Larry, a particularly touchy-feely octopus; Emily Dickinson, a recluse; and Lucretia McEvil, who destroyed the interior of her tank, became the starting point for a revealing study. To be fair, personality is a hard thing to prove,...
Learning to visualize the flow of individual electrons was a breakthrough for me in understating tube amplifier electronics. Electric guitars generate an alternating current (AC) audio signal. The guitar's pickups are small electric generators. Pickups have magnets (poles) that magnetize the metal ...
A 50-Watt X-ray tube is used to excite the sample and a Silicon-Drift-Detector (SDD) to count the number and energy of the characteristic X-ray photons. The SDD records the entire energy spectrum at once and thus multiple elements can be detected simultaneously. Direct EDXRF spectrometers ...
The markings on your tape measure or measuring cup don’t change over time, butthermometerscanactually lose their accuracy over time. This potential for instruments to lose accuracy over time is sometimes called “drift,” because the relationship between the system of the thermometer and the actua...
Closed-loop current sensorsemploy a feedback control circuit to provide an output that is proportional to the input. Compared to open-loop sensors, this closed-loop feedback design inherently provides enhanced accuracy and linearity as well as better temperature drift compensation and resistance to no...
Benchtop Energy-Dispersive X-Ray Fluorescence (EDXRF) spectrometers are compact in size and have a relatively simple setup. A 50-Watt X-ray tube is used to excite the sample and a Silicon-Drift-Detector (SDD) to count the number and energy of the characteristic X-ray photons. The SDD reco...
The moment contact is made, the free electrons of the conductor are forced to drift toward the positive terminal under the influence of this field. The free electron is therefore the current carrier in a typical solid conductor. For an electric current of 1 ampere rate, 1 coulomb of electric...
So of the three tests on my Sony a7S, shutter speed and aperture very obviously directly affect the apparent levels of noise in the photograph while ISO has nearly no effect. This is completely contrary to what many people would expect when they think about higher ISO. ...
A corn cob (see in figure), shaped somewhat like a cone, has the radius of its broadest end as 2.1 cm and length as 20cm. If each1cm2of the surface of the cob carries an average of four grains, find how many grains you would find on the entire cob?
"if the police find a baseball bat in your car they call it a weapon, but a piece of coax works just as well in a fight and the police never give me any trouble." although less thug-repellant, thin coax is much easier to use. these cables are half as thin as thick ethernet and...