Physics at Home Archive
How Things Fly: Kepler's Laws of Orbital Motion - Sep 1, 2013
Visit How Things Fly: Kepler's Laws of Orbital Motion to visualize the predictions of Kepler's laws.
To help visualize how planets move under the force of gravity from the sun, check out these animations from the University of New South Wales.
LaserFest - Aug 1, 2013
Check out these videos of laser light shows (from the 50th anniversary of the laser celebration).
PhET Simulation: Geometric Optics - Jul 15, 2013
MIT Technology Review: X-Rays Made with Scotch Tape - Jul 1, 2013
It's easy to produce x-rays--just unwind scotch tape (but you have to do it in a vacuum). To see how, see video in this MIT Technology Review article.
What Is a Neutrino…And Why Do They Matter? - Jun 1, 2013
PhET Simulation: The Greenhouse Effect - May 1, 2013
Earth Observatory: Solar Prominence - Apr 1, 2013
Visit Earth Observatory: Solar Prominence, and take a look at these two images of a solar prominence. How does a prominence look when you see it at the sun itself, compared when you see it against the darkness of space? When you see the prominence against the sun, it's usually called a "filament." To learn more, read the text under the images.
Kitchen Sink Experiments: Bubbles that sink: Antibubbles - Feb 1, 2013
Think about a bubble: It's a thin film of water, with air inside and outside. Now imagine the opposite of a bubble: That would be a thin film of air, enclosing water inside and surrounded by water outside. This structure is called an antibubble.
Spectral Lines - Jan 1, 2013
Auroras are produced when charged particles from the sun collide with atoms in the atmosphere and transfer energy to them. This energy is then given off as light. Check out Spectral Lines to find out how atoms produce light.
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