Question 2- 
Explain Heron’s Aeolipile in simple words in about 150 to 200 words. 

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A safe way to replicate the work of heron of Alexandria is to take a drinks carton or aluminum can, and use water instead of steam. The principles are exactly the same.

This experiment is best performed outside if you don’t want to get into trouble for making the floor wet. Otherwise, use a large basin to collect the worst of the water and have a couple of old towels handy.

For this experiment, you need:

• A milk carton
• String
• A frame to hang the apparatus from, or you can hold it if you don’t mind getting wet
• Scissors, knife or a bradawl for making holes in the carton
• Waterproof tape
• A basin, or somewhere to perform the experiment where it doesn’t matter if the floor gets wet

To recreate a version of Heron’s aeolipile:

1. Poke a hole in all four faces of the drinks carton, making sure that they are all near the bottom left corner.
2. Make a hole in the top of the carton and suspend the carton from the string, over the bowl, making sure that it can rotate freely
3. Place a piece of tape over the holes
4. Half fill the carton with water
5. Remove the tape
6. Watch what happens.

You can also do this experiment with an aluminium drink can. Make four holes near the bottom with a nail and, in each case, lay the nail over, so the water will squirt sideways. Cut the top off the can carefully with scissors or a knife (ADULT SUPERVISION REQUIRED) and hang the can, using fishing line and a fishing swivel, under a flow of water.

How does it Work?

This experiment shows one on the basic principles of physics, that for every action, there must be an equal and opposite action, and this simple principle lies at the root of modern society. Combustion engines, turbines, lawn sprinklers, and rockets are just some of the machines relying upon the principles shown by Heron.

Newton's Third Law states that every action has an equal and opposite reaction and, as water shoots out of the holes, it pushes back on the carton with equal force. A turbine is formed as the energy of the moving liquid is converted into rotational energy. 

Regards