Proof of Pythagoras Theorem

Principle: For a Right angled Triangle:
Square of Hypotenuse = Sum of the Squares of the perpendicular sides

Applications:
Proof of the Pythagoras Theorem

Items Required to make:
Wooden pieces of appropriate size (like a2+b2=c2)
Nails
Glue

Fun Facts to know: There are more than 70 different ways in which the Pythagoras theorem can be proved,
Check out: http://www.staff.hum.ku.dk/dbwagner/Pythagoras/Pythagoras.html

Break Dancer

Principle: I tworks on the principle that, Center of gravity of an object tries to attain the least height unless an opposing force is applied.


Applications:
This helps to know the center of gravity of various things and where it is acted.

Items Required to make:
Bamboo stick (25 – 30cm)
Empty thread real
thread

Possible experimentation:
Shift the thread reel such that the center is between the 2 threads, or below the 2 threads, Does it still work?