Measuring Speed of Light using Chocolate

Need  a microwave, ruler, bar of chocolate .

(Better to take a  longer  bar of chocolate )

STEP 1: Take the turntable out of the microwave. We don't want uniform heating of Chocolate . You need the chocolate to stay still whilst you heat it.

STEP 2: Put a plate upside down over the thing that rotates the turntable . 

STEP 3: Now place the bar in the microwave and turn the microwave on .

It will take some 20 - 40 sec when chocolate will start melting in two or three places .

STEP 4: Now its time to take out chocolate and measure carefully the distance between one hot spot to another hot spot .

A hot spot is where the chocolate is starting to melt or is more melted than rest of the other portion .

CALCULATIONS