How to make a static electricity motor

Most electrical motors uses electromagnetism in order to transform electricity into mechanical work, but there’s another type of motor, the electrostatic motor, that works differently. Instead of using magnetism, electrostatic motors uses high voltage to attract and repel parts of the motor, causing them to turn. There are many ways of making such motors, but most tend to have very low strength and torque. There are the exception to this rule though, and in these videos from RimstarOrg one such exception is studied in detail. It is called the “Corona motor” and apart from being cheap to build, it also have high enough strength and torque to be a viable motor for practical applications! The downside is that it needs very high voltages, and if you try this build, be extremely careful not to get a shock! And if all possible, avoid using high voltage transformers that plug into the wall socket. They can kill. We are not kidding.

 

 

Forming steel with….a pressure washer?

Hydroforming is a process that can be a blessing when you want to make smooth inflated-like objects from flat pieces of steel, but has been overlooked because most people doesn’t realize how easily it can be done. In this video, the mad genius colinfurze demonstrates how you can modify your (or your neighbors) pressure water to hydroform anything you want! And if you think this is just a cute trick, you’re wrong. Just watch the video below and see how colinfurze uses this very technique to make a fully working pulse-jet engine!

Making glass stronger with….food preservatives?

This is an extremely interesting scientific demonstration by Ben Krasnow at Applied Science on why materials like glass breaks, but most importantly how you can improve the strength of the glass by a very simple process. Other similar hard materials like pure concrete, wood and cast iron breaks in exactly the same manner, but glass is one of the few materials whose strength can be increased through a simple chemical process. The only chemical needed is called potassium Nitrate (Saltpeter) which is a common food preservative and readily available to the public! It’s amazing how much difference a bit of scientific knowledge can make.

How to choose your bacon

Here comes two great tips from CrazyRussianHacker on how to cut your bacon, but most importantly how to choose which bacon package to buy at the store. He shows us how much fat a nice looking package of bacon can have, and it’s almost scary. Many thanx to CrazyRussianHacker for opening our eyes and teach us how to see through this illusion!

Masters of pottery!

While not a DIY tutorial per-say, we found this video from AMOCA to be so beautiful and inspirational that we could not resist adding it to our collection. Here we can see the huge potential of clay and how the right material in the right hands can result in truly astonishing objects. So just lean back, watch and be amazed!