Practical heat engines are very difficult to make at home. But if you are fond of physics, you can build a working model of a heat engine at home or in a school physics study.
Instructions
Step 1
Wear protective gloves. Take an aluminum beverage can. Rinse it, then dry it thoroughly, then cut off the top and bottom parts, and cut a sheet from the middle.
Step 2
Cut a circle out of the sheet, and a spiral from it.
Step 3
Extend the spiral downward so that it becomes tapered. From the inside of the resulting semblance of a cone, make a small indentation in the middle of the spiral with a needle.
Step 4
Make an L-shaped holder from steel wire. Attach it to the stand.
Step 5
At the end of the holder, fasten the pin vertically. If the steel is solderable, solder it.
Step 6
Take an old, small-diameter saucepan. Drill about fifteen holes in the lower part of it. This operation must be performed only in a school workshop under the guidance and supervision of a labor teacher. Place a socket with a 25 W incandescent light bulb inside the pot. Fasten the socket securely so that the bulb does not touch the sides of the pot. For this, brackets of various designs can be used. Lead out the cord with the plug, avoiding short circuits. Insulate all connections carefully.
Step 7
Place the stand so that the pin's axis is aligned with the pan's axis. Place the spiral cone over the pin so it can rotate over the lamp. Remove protective gloves.
Step 8
Turn on the lamp and wait a few minutes. The spiral cone rotates. Do not overheat the unit.
Step 9
Optionally, use a working model of the heat engine you made as an extravagant decorative light (not a night light). Such devices have been produced by industry since the twenties of the last century and up to now. Even earlier, they were built using candles, however, such experiments can only be carried out at school under the guidance and supervision of a physics teacher, but by no means at home.
