Be careful while working with glass! You can easily cut yourself!In this video I show you how to make amazing coffee machine from 2 light bulbs. All needed components are shown in the video.
image/text credit: The Q
A vacuum coffee maker operates as a siphon, where heating and cooling the lower light bulb changes the vapor pressure of water inside it.Water is pushed up (or pushed down) the siphon tube into (out of) the upper light bulb. Just 5 minutes and you will get fresh coffee.
The post-apocalyptic coffee maker is heated by fire, which brings the water to a boil. After that happens, the coffee starts brewing through the confusing contraption until you’ve got a fresh- brewed cup of java waiting for you inside a bulb.
It creates a great coffee as it is a manual coffee maker, you can simply adjust your coffee strength and brew a perfect tasty coffee out of it. This man used the great mind power to develop a coffee maker out of the waste which proves that.