Bike pedals used to put a metal screw cap to protect the bearings from contamination. Now, instead, use the plastic plugs, which are often lost. Rescue plastic or nylon tubes from medical bubbles. Such substitutes being kept quite steady.
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I want to share my version of the functional generator frequency sweep for the home lab. Consuming from the electrical power source 50 mA, is a compact, fairly simple to manufacture, the...
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The oil from a small amount of cream is easiest to obtain in the following way. You need to take a two-liter plastic bottle, cut the top with a tube (height of cut 60 mm). This cut from...
