Physical Science

The greatest scientist of the 20th Century, as is well known, was Albert Einstein. Besides his accomplishments as a scientist, he was also a violinist and played the violin as a favorite pastime. In the area of gravitation, in spite…
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Whenever visiting Florida or any area bordering the Gulf of Mexico, it is not uncommon to encounter a stingray, a mildly dangerous sea creature. Chances are that if you are bathing in the ocean, it is highly likely that you…
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Galileo Galilei made immeasurable contributions to math and several sciences.  He became the “Father of Modern Science” as a result of his many discoveries and revolutionary hypotheses.  Galileo’s new theories challenged the current way of thinking, sparking the Scientific Revolution. …
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With winter upon us, snow and ice illuminate the world in a winter wonderland. As children skate across that frozen pond, the question comes to mind of why ice floats. After all, it is just water in another form. The…
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Is time travel theoretically feasible? In a trivial sense it is clear that time travel is possible – all of us are currently travelling into the future at a rate of one day per day. The real question here is can…
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How to Wrap a Bubble in a String The greatest case put forward for the idea that we are just one of a multitude of Universes is the Anthropic Principal.  Imagine a pond in which the fish cannot conceive of…
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In physics the concept of moments has nothing to do with time but is rather a measure of the energy in a system. Moments, or the torque of a force, about a turning point are measured in Newton meters (Nm)….
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Galileo Galilei (1564-1642) contributed to what we know about the solar system in several significant ways:  He was the first to use a telescope to systematically observe the heavens.  His observations about Earth’s sun, Moon, and stars of the Milky…
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Imagine going to the past and meeting Einstein, Shakespeare or da Vinci. Imagine going to the future and meeting your great grandchildren. Time traveling opens possibilities to such seemingly impossible tasks. But time traveling itself seems possible. Time traveling means…
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My wife, the retired schoolteacher, would warn you that I’m not capable of giving a simple explanation no matter what the subject. I’ve taught adult continuing education classes in residential electrical repair and I’ve tried to practice the K.I.S.S. (Keep…
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