Inertia is a physical property used to describe how difficult it is to move a stationary object. The greater the inertia the harder it is to move the object. Inertia increases with mass. A magician’s trick of pulling a table cloth out from under a table setting and leaving the dishes standing is not a […]
Light
ANSWER: The color of an object is not in the object but rather depends on the light that pigments in the object reflect or transmit. Pigments are chemicals that subtract (absorb) specific colors of light and reflect or transmit other colors. White light contains all the colors of a rainbow. Starting from the top of the […]
Optics: Mirrors
QUESTION: Why do some mirrors make me look upside down? ANSWER: You can see your image by looking at yourself in a spoon. The spoon acts like a mirror, which is a surface that reflects (bounces back from a surface) light. The inside of the spoon’s bowl is concave, meaning it curves inward. When you […]
Sir Isaac Newton
The English scientist Sir Isaac Newton was born February 4, 1642 in Lincolnshire. His father, a wealthy landowner died shortly before Newton was born. When Newton was three years old, his widowed mother, Hannah, remarried, left Isaac in the care of his grandmother, and went away to live with her new husband. Newton’s later writings […]
Weightless
The photo shows me and others inside NASA’s KC-135, which is a plane used by NASA to produce apparent weightlessness.I’d given up on losing weight so I decided to achieve weightlessness –believe me once the plane started it path that resulted in our apparent weightlessness I was positive that it was the ultimate weight-loss program. […]
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