Tag Archives: Light Bulb

An Engaging Demonstration for Reinventing Edison: Build your own Light Bulb

It never fails.  I get the same reaction, whether I present to seasoned physicists, grade level science teachers or even from the most discerning audience I’ve had; a group of fifty – fourth grade students, jaws gape and sounds ofoohsaahs and wows issue forth.

Lee Walker Demonstrates Reinventing Edison to Educators

Lee Walker Demonstrates Reinventing Edison to Educators

I’ve been in rooms surrounded by hundreds of artificial light sources, from the simplest incandescent bulbs to the most advanced OLED displays, and even so, when a person closes that knife switch and current begins to flow and a simple piece of pencil lead held suspended inside a partially evacuated chamber starts to glow brighter, brighter, and finally white light illuminates the chamber, something happens in the person’s brain.  At once they are connected with the wonders that Sir Humphry Davy, Swan, and Edison felt when they experimented with the world’s first electrical light sources.  Questions start to form; How does that work? How could we make it last longer? What would happen if we changed the carbon for some other material?  All at once, the passive viewer is thinking scientifically, asking questions, and yearning to do more.

I’m talking about “Reinventing Edison: Build your own Light Bulb, a science kit that I am proud to have designed…..

If you want to read more then please click here to read the entire entry.

(I was recently a guest blogger for Educational Innovation’s teacher resource blog, a great source of tips and tricks for science educators, you can read the full blog entry at their site).