Learn how to create your very own light bulb from common supplies. When Thomas Edison was creating his incandescent light bulb in the 1870's, he went through many different types of materials, testing out each version until he found the one that worked the best. In this activity, Spark!Lab's Steve Madewell leads you through the invention process, trying out four different types of material for the filament inside the light bulb. http://invention.smithsonian.org/centerpieces/sparklab/spark-experiments-ligh...
excellent video....hopefully Americans will start making their own Edison light bulbs at home because communist Obama has banned traditional light bulbs.
tri400 2 months ago