If the flashlight is to strengthen the tin bracket with a motor from a child’s toy, the axis of which is planted miniature celluloid propeller, and connect the motor to the battery of a flashlight, get a portable fan, which could become a mechanical fan and refresh face in heat.
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Once upon a time, according to the Bible, Noah built an ark and saved his family from the Flood, and at the same time all life on Earth. I, of course, cannot in any way compare myself with...
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Often for the preparation of chemically pure solutions at home requires a small amount of distilled water. Many in these cases, use a snow coat from the freezer of the refrigerator, but...
