ISOTOPES (C) are atoms with the same number of protons, but different numbers of neutrons.
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Well PLC control I Programmable Logic Controller (PLC) is an indusrial computer control system that continuously monitors the state of input devices upon a custom program of output devices
Electroscope is the instrument that has the ability to detect the presence of an electric charge. Although electroscope has the power to measure the amount of charge, but for a perfect measurement the electrometer is used. Around the year 1600, electroscope was discovered by William Gilbert he British physician. This is a pretty primitive but highly effective instrument in regards to detecting the presence of electric charges. Two basic but effective electroscopes are the gold-leaf electroscope and the pith-ball electroscope.
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the blood from carrying oxygen to the tissues of the body
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