E equals m times c-squared is a formula developed by the physicist Albert Einstein (1879-1955) that directly relates mass (matter) and energy. In the formula, E stands for energy, m stands for mass, and c-squared is a constant factor equal to the speed of light squared. The formula indicates that large quantities of energy can result from tiny amounts of mass if the mass is completely changed into energy. For example, a mass of one gram could produce about 25 million kilowatt-hours of electricity. That amount is enough electricity to keep a 100-watt light bulb burning more than 28,500 years.
Another lesson from Einstein:
Another lesson from Einstein:
The great scientist Einstein was once asked how many feet are in a mile. Einstein's reply was, "I don't know. Why should I fill my brain with facts I can find in two minutes in any standard reference book?"
Einstein taught us a BIG lesson. He felt it was more important to use our mind to THINK than to use it as a warehouse for facts.
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