Many thanks to Ms. Pinney and her third graders that were excellent students today. We discussed the evolution of the light bulb from incandescent, to florescent to LED. We took infrared heat measurements of each type of bulb and compared the wattage consumed by each type of technology.
We also discussed trademarks and how brands are used and protected by companies. The students got an A+ on their test and received free pens from Kari McDermott.