Why would Professor Jearl Walker of Cleveland State University want to dip his hand in molten lead? To demonstrate the Leidenfrost Effect - that's why.
Did you know that in addition to being a lubricant, H2O also can act as an adhesive? Just ask Professor Jearl Walker he's the guy with the spoons and bottle caps hanging all over his face.
Did you know you can play a wine glass like a musical instrument? Professor Jearl Walker of Cleveland State University demonstrates "stick and slip" motion. The results are kind of catchy, if we do say so ourselves.
Next time you want to determine if an egg is hard-boiled or fresh, give it a spin. Professor Jearl Walker will attempt to demonstrate, but we can't promise he won't end up with egg all over his face.
You've heard this electronic musical instrument's otherworldly sounds in countless sci-fi/horror films - not to mention on the Beach Boys hit "Good Vibrations." How does a theremin work?
When you tap a spoon inside a cup of hot water, you generate sound waves. Now how do you suppose the frequency would be affected if you poured some coffee grains into the cup? All will be revealed in this super-caffeinated episode.