I guess I am fortunate, in that I have two sets of children, my two oldest sons, 32 years and almost 31 years old, and after that I have the twins, Jon and Ashley, that individuals adopted as babies, that are now 19 years! It was hard to watch my older sons get their driver's licenses and lower the road alone the first time, but I only shed a few tears. My boys were now teenage boys and I was surprised how short a time it had been since they enjoyed little Tonka trucks and Matchbox cars.
A motor is an electrical machine which converts electrical energy into mechanical energy. When a current carrying conductor is placed in a magnetic field, the conductor experiences a mechanical force and this is the principle behind motoring action.
Algae really are a broad gang of simple plants which range from single-celled diatoms to fifty meter long giant kelp. There are over 100,000 species. Some algae form symbiotic relationships to organisms to construct lichens and coral reefs. Among the oldest organisms on Earth, algae found in the Vindhya Basin of India go as far back over 1.5 billion years.
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