A beaver's front teeth are bright orange because of their super hard enamel coat. These teeth must be sharp because the beaver uses them to cut down trees. Beaver's teeth never wear out because they never stop growing!
Battery boost makes greener cars
Battery boost makes greener cars Researchers argue that if car battery voltages
were to be increased to 36 volts from the usual 12 volts, the
amount of pollution produced by cars could be reduced. The
reduction would happen because the more powerful batteries would be
able to power better emission control devices. 28 NOVEMBER 1998, P. 7
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