This wonderful kit has been designed by LG of Korea. The heart of the Fire Alarm is a bimetallic strip. When heated the strip expands completing an electric circuit. This switches ON a Fire Alarm and the LED warning light starts to blink signaling danger!
http://www.arvindguptatoys.com/toys/Bimetallicalarm.html This work was supported by IUCAA and Tata Trust. This film was made by Ashok Rupner TATA Trust: Education is one of the key focus areas for Tata Trusts, aiming towards enabling access of quality edu
آی-ویدئو