For students enrolled in natural science courses in ETSU's general education core

Space epics almost always play fast and loose with science, treating the laws of physics like suggestions. But some movies dismember Newton and Einstein with way more gusto than others. Here’s our report card for bad science in 18 movies. via Bad Movie Physics: A Report Card. Advertisements

*September 24, 2010*
by *Michael Garrett*

ScienceDaily (Feb. 15, 2007) — Subhash Kak, Delaune Distinguished Professor of Electrical and Computer Engineering at LSU, recently resolved the twin paradox, known as one of the most enduring puzzles of modern-day physics.

*September 24, 2010*
by *Michael Garrett*

Scientists have known for decades that time passes faster at higher elevations, and more slowly when you move faster, curious aspects of Einstein's theories

*August 26, 2010*
by *Michael Garrett*

Interactive tool for practicing comparing two lengths, areas, and volumes. It is VERY TRICKY to judge how area and volume change with size. This tool gives you good practice. Good for physics problems to do with pressure, gravity, and other places where area or volume are important. Explore size estimation in one, two and three dimensions! Multiple levels of difficulty allow for progressive skill improvement.

*August 26, 2010*
by *Michael Garrett*

Interactive tool for showing how derivatives and integrals relate to a graph of a function. Really great for experimenting with the meaning of basic calculus ideas. Intuitive and graphical. Spend a little time playing to see where the derivative is zero, positive, negative, or how the integral grows. Draw a graph of any function and see graphs of its derivative and integral. Don't forget to use the magnify/demagnify controls on the y-axis to adjust the scale.

*August 26, 2010*
by *Michael Garrett*

Interactive tool for fitting a straight line or other curves to data points. Great supplement to any science lab course. Let's you see how data and mathematical models relate to each other. With your mouse, drag data points and their error bars, and watch the best-fit polynomial curve update instantly. You choose the type of fit: linear, quadratic, cubic, or quartic. The reduced chi-square statistic shows you when the fit is good. Or you can try to find the best fit by manually adjusting fit parameters.

*August 26, 2010*
by *Michael Garrett*

Interactive simulation of vector addition. Let's you practice adding vectors in arrow style to get a feel for the math. Learn how to add vectors. Drag vectors onto a graph, change their length and angle, and sum them together. The magnitude, angle, and components of each vector can be displayed in several formats.

December 29, 2010byrussellwriter0