"When I heat water, it drips faster than it did when it was cold. This is because the molecule move faster. When I heated a Propel Zero water and when I heated Kool-Aid which is made mostly of water, they did not drip faster, they dripped slower. Why? Is is beacause there is salt in both or because they both have vitamin C in them?"
-Drew (age 9)
Reflecting Mirror Lenses
A Ceiling Fan Gone Wild
What Happens To A Compass At The North Pole?
Magnets Sticking Forever?
Intuition And Magnetic Fields
Newton, Kepler, Inverse-square
Conservation Of Energy In Springs
Is Hooke's Law Always Obeyed?
6844 questions have been answered online since 1998 by volunteers from the Department of Physics at the University of Illinois' Physics Van outreach program. We've tried hard to make this the most reliable physics Q&A site on the Web, but no site is perfect, as we explain on this note. Our Baloney feature provides examples of how shaky many other sites are.
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