Rainwater Pump Runs On Sunlight

From TreeHugger:

ITT Flow Control recently announced the development of their new, solar powered RainPerfect Water Pump, which takes harvested rainwater in a barrel and pumps it through devices like garden hoses and sprinklers. This way, the rainwater is recycled, and consumers can water

What Does DC Current do to AC Only Devices

For those of you that are true engineers please pardon the simplicity of my questions. I am about to plug in a AC current surge protector with some electrical devices that are also AC. In my building there is a backup generator that sometimes sends DC current through at start up before converting to

Floor Plate Source?

I would like to find a source for floor plate with a raised pattern of squares on it. Similar to diamond plate / tread plate / 4-way plate / etc, except with raised squares. I thought Ryerson or McMaster-Carr would have it, but can't find it. I would also like to know a generic name to make searchin

About Pneumatics

how to control stroke lengths of pneumatics. we want that air cylinder to be stopped at different positions even by increasing the load on it. we it to be controlled electrically or mechanically in simple manner. as simple as possible..please... send it my mail.... please....

Incremental Encoder

We have a Incremental type Encoder giving output 1024 PPR.

I have some doubt regarding this

1. in first cycle it gives 1024 pulse,then in second cycle is it 1024x2? & so on

2. if above is true then how the no of pulses increase in second revolution?