bonnemichael的頻道

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aquaponics shrimp and vegetables and human 蝦菜人共生

エビの野菜の共生の系統

它是利用馬達抽出中央池的水，而產生負壓，吸入沉澱在大水池池底­的污泥，使污泥停留在中央小池，以方便未...

The oral groove, gullet and the filling and detachment of the food vacuole are clearly visable in this video

Traditional axe making video and construction of wooden lodge, presenting the traditional technics. The video is provided by the Swedish Local Heri...

boring 2" holes in soaking wet hemlock top plate for our timberframe

My version of McGeer's 2D Kneed Walker Video

Randy Powell explains his latest research into the ABHA Torus, an advanced look at Vortex Mathmatics and the work of Marko Rodin. Contact Randy di...

Machining A Brushless Motor with a lathe and drill press.

Just a quick slide show of some motor contsruction tips before I added a small milling m...

A motor made only by a copper wire and a neodymium magnet. It uses one AAA battery but it can be done with AA one too.

It's a simple motor, but unf...

How to make a high pressure wood boiler and a conventional low pressure steamer