Dimensional Analysis. Dimensional Analysis (also called Factor-Label Method or the Unit Factor Method) is a problem-solving method that uses the fact that any number or expression can be multiplied by one without changing its value. It is a useful technique.
In 1887, the first dry cell battery was invented. Unlike previous batteries, it used a paste electrolyte instead of a liquid.
Voltaâs battery produced a steady source of electric current for the first time ever. All electrical devices depend on electric current. Without Voltaâs invention, there could be no modern technology. Voltaâs battery was an absolutely crucial invention in the development of our technology based civilization.