Balancing Performance (Physics Experiments)

In this experiment, we will balance two forks on the edge of a drinking glass. Does it sound like a magic trick? But my dear, this is pure science.
Things Required:
2 metal forks
Drinking glass or wide-mouthed jar
Modelling clay
1 flat toothpick

Directions:
Make a ball of clay about the size of a large marble. Insert the tip of one of the forks into the clay ball. Insert the second fork at about a 45-degree angle from the first fork. Insert the pointed end of the toothpick in the clay between the forks.
Place the end of the toothpick on the edge of the glass. Move it further over the glass until the forks balance.
Note: Decrease the angle between the forks if they will not balance.
This Is What Happens:
There is one point at which the toothpick supports the weight of both forks and the clay.
Science Behind It:
The angle of the forks spreads their weight so that there may be one place on the toothpick where all of the weight is evenly distributed. This spot is called the centre of gravity.

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