Tom Kuntzleman's blog

Lego Periodic Table

Here’s a great project to try with your students:  build a periodic table out of Lego blocks.  We did this a few years ago at Spring Arbor University, working with teachers and students from Hardin Valley Academy i

Nail Bottle Demonstration in Slow Motion

The nail bottle demonstration is one that many of us have conducted in our classes. To perform this demonstration, 2 – 3 mL of ethanol is placed into a plastic bottle that has two nails punctured into opposite sides of the bottle. After stoppering the bottle, a Tesla coil is touched to one of the nails. A spark jumps from one nail to the other, which initiates the combustion of vaporized ethanol inside the bottle. We recently filmed this reaction with our high speed video camera.