Clean Up Australia
Why are Batteries Harmful to the Environment?
Open this lesson by reading together about primary and secondary batteries (such as nickel-cadmium cells), problems they can cause in the environment, and how humans can minimize the damage. Afterward, little ones examine a collection of...
Rutgers University
Edison's Papers: Edison's Patents: Batteries
A full listing of all Edison's battery patents. Not just titles and numbers, but Adobe Acrobat copies of the entire set of drawings and text from each patent application. This is heirloom stuff. With the available magnification, you can...