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Test # 17


1.
The breakfast ________ is on aisle four.

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  • Precautions while using Centrifuge

    Wear a face shield and or safety goggles

    Wear a face shield and / or safety goggles if you have to work anywhere near a centrifuge that s in use. Accidents happen sometimes under the most freakish or unexpected circumstances. The rotor is spinning very rapidly and generates extreme forces. Although a physicist would tell you that centrifugal force is an illusory force , the point makes not one bit of difference to the sample as it spins in the rotor. It might as well be experiencing a real force that pulls the particles toward the bottom / outside of the tube. These illusory forces have been known to tear apart enormous flywheels in factories, for example, with disastrous consequences (read some of the compilations of machinists stories from Lindsay Publications, for instance).


    Chourishi Systems