Posted on September 23, 2014 by Dr. David Kagan
Ever realized how waves and their properties are an integral part of baseball? See proof with this super slo-mo of a bat meeting a 90mph fastball!
This post was posted in CoolStuff Newsletters, Sound & Waves and was tagged with waves, physics, baseball, Sound & waves
Posted on September 11, 2014 by Dr. Joel Bryan
The ultimate form of scientific inquiry occurs when students can develop their own questions and then design the data collection experiments to find the answers. Read how this group of young science students did just that.
This post was posted in CoolStuff Newsletters, Force & Motion, Measurement, Teacher Tools and was tagged with Project based learning, STEM activities, Scientific inquiry, Acceleration and velocity
Posted on May 16, 2014 by James Lincoln
Did you know the yellow you see on your smart phone doesn't actually contain the color yellow? It's true! Watch this revealing video to see this - AND 9 more great demos that show there's more to studying light and color than meets the eye.
This post was posted in CoolStuff Newsletters, Chemistry, Energy, Light & Color, Optics, Measurement and was tagged with wavelength, refraction, frequency, reflection, Rspec-explorer, RSpec, spectroscopy, color experiments
Posted on March 17, 2014 by Dr. David Kagan
Galileo claimed that all objects fall toward Earth with the same acceleration. Modern measurements indicate that this acceleration is about 9.8m/s2
. Using the G-Ball by Arbor Scientific, you can measure this value and compare the acceleration of other objects with different masses and in different states of motion.
This post was posted in CoolStuff Newsletters, Force & Motion and was tagged with measurement, acceleration, acceleration due to gravity, gravity, Galileo, g, baseball, softball
Posted on January 28, 2014 by James Lincoln
Can the new Cell Phone Magnifier unlock why Mint Mentos's are better than Fruit Mentos for making soda explode? Check out this inexpensive option for those times when high-powered microscopes aren't necessary.
This post was posted in CoolStuff Newsletters, Optics, Measurement and was tagged with lens, cell phone, iPhone, mircophone, magnifier
Posted on January 17, 2014 by Dr. Brian Thomas
Watch how silly putty and simple steel spheres can be used to demonstrate the conversion of kinetic energy into thermal energy! (And you thought Silly Putty was for copying comics from the newspaper!)
This post was posted in CoolStuff Newsletters, Energy, Measurement and was tagged with energy
Posted on October 31, 2013 by James Lincoln
When I visited England this summer, I had the opportunity to walk in Isaac Newton's footsteps at his birthplace, Woolsthorpe Manor.
It is a little tourist museum far from the major train stops. You will probably have to take a long taxi ride from the train station at Grantham, but it’s not so far from London [...]
This post was posted in CoolStuff Newsletters, Force & Motion, Light & Color
Posted on September 18, 2013 by James Lincoln
I have been using tuning forks in my classroom for 10 years, and in each of those years I have discovered several new tricks. I hope you can learn many of these from this publication. For a more complete treatment and my references, please see my article in “The Physics Teacher” March, 2013.
This post was posted in CoolStuff Newsletters, Energy, Lasers, Light & Color, Measurement, Sound & Waves and was tagged with tuning fork, resonance, Lissajous Figures, beats, measure the speed of sound, transmission of sound
Posted on May 8, 2013 by Arbor Scientific
Teaching the spectra of visible light can be an engaging classroom activity. But, it’s always been challenging to find ways to go beyond simple passive demonstrations.
Hand-held diffraction “rainbow” foil (sometimes mounted in cardboard glasses) can be fun. But students often have difficulty even spotting the spectrum. “I can’t see it!” is the common complaint. And [...]
This post was posted in CoolStuff Newsletters, Light & Color
Posted on April 26, 2013 by James Lincoln
Although the problem of why coffee spills might seem trivial, it actually brings together a variety of fundamental scientific issues. These include fluid mechanics, the stability of fluid surfaces, and interactions between fluids and structures (we’ll set aside the biology of walking for now). The SpillNot is a cool tool for getting your students interested in the everyday physics behind why drinks spill while we’re carrying them and what has to happen to prevent spillage.
This post was posted in CoolStuff Newsletters, Force & Motion and was tagged with force, centripetal, spillnot