Simplest Stirling Engine

Hello Everyone after a long gap iam posting an instructable here. Today iam gonna show you the video of my first made stirling engine which is about 7 years ago. The video contains the materials required and assembling instructions. In this video its me before 7 years.

In my opinion this is the simplest way of making a stirling engine. Have fun in making it and dont forget to post you videos.

Stirling engines:

As Everyone knows a stirling engine is a hot air engine, which means the engine works purely on heat. The heat source can be anything from candles to stove. The basic working principle is hot air expands and cold air contracts. So the hot junction on one side and the cold junction on the other side.

Things needed:

1. Glass test tube which suits the diameter of the marble.
2. 5 marbles.
3. Plastic straw.
4. Rubber cork.
5. Glass syringe (Please dont use plastic syringe).