Saturday, 8 September 2012

Egg is Boiled or Raw

Things You Need
  • Two eggs, one hard boiled and one raw.
  •  Make sure the hard boiled egg has been in the fridge long enough to be the same temperature as the raw egg.
The Way You Do
  1. Spin the eggs and watch what happens, one egg should spin while the other wobbles.
  2. You can also lightly touch each of the eggs while they are spinning, one should stop quickly while the other keeps moving after you have touched it.
What You Observe 

The raw egg's centre of gravity changes as the white and yolk move around inside the shell, causing the wobbling motion. Even after you touch the shell it continues moving. This is because of inertia, the same type of force you feel when you change direction or stop suddenly in a car, your body wants to move one way while the car wants to do something different. Inertia causes the raw egg to spin even after you have stopped it, this contrasts with the solid white and yolk of the hard boiled egg, it responds much quicker if you touch it.


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