Boyle's Law
Using a hand-operated vacuum pump, we can demonstrate the relationship between pressure and volume of a gas. According to Boyle's law, the pressure of a gas of constant mass and...
May 2013
Polarization with 3 Filters
In what seems like a counter-intuitive demonstration, we can place a polarizing filter in between two other filters which do not transmit light in order to cause light to pass...
Polarization Using Sunglasses and a Computer Screen
Using a pair of polarizing sunglasses, you can demonstrate the effects of polarization together with a computer screen which is also polarizing. When the axes of polarization of...
Learning about Sound with Audacity
Audacity is a free audio recording and editing software downloadable from http://audacity.sourceforge.net . It is cross-platform meaning you can run it on PC or Mac. Once you have...