# Draw Your Own Electrical Toys!

You’re never too old to play with toys…especially when there’s science involved!  Consult the source for more details.

Special thanks to Jesslin Tan for the submitting the post

# How Fuses Work

Students use electrical devices every day. An essential safety component of any electrical device is the fuse. Demonstrate what it means to “blow a fuse” and show why fuses are important safeguards against electrical fires.  Courtesy of Flinn Scientific Canada.

# Nikola Tesla: AC Powerhouse

## The Hamilton Ontario – Tesla “Connection”

Did you know that the city of Hamilton was the 1st major city in Canada to have AC electrical power? Current flowed for the first time on August 25, 1898. All thanks to Nikola Tesla. Pretty cool, right?

## The Nikola Tesla Education Corporation

The goal of this organization is to spread the knowledge about Nikola Tesla’s work to the public through various mediums, so that our youth can learn about the inventions and the body of knowledge he has left behind.  Click here to find out more…..

## 50 000 Volts!

And for dessert, click on this Steve Spangler video for a cool Tesla Coil Experiment
Special thanks to Jelena of the STAO Secondary Committee for these electrifying thoughts on one of the most important inventors in recent history.

# The Characteristics of Electricity/Electrical Applications – Demo

In this demo, two circuits are constructed to enable comparison of the brightness of a light bulb placed in a circuit with one cell and the brightness of the same light bulb in a circuit with three cells connected in parallel. In Next Steps the potential differences of the two circuits are also compared.

# Internal Resistance and Dry Cells

Every dry cell can be considered as being made up of two parts. Internal Resistance cannot be separated from the cell because coulombs need energy to move through any real material (including cells). Coulombs need very little energy to move through conductors. When coulombs move through loads they need (or convert to other forms or lose) more energy. The more coulombs that move through something the more energy that is converted to other forms. Another way of saying this is; the more current flowing through something the more energy is lost.