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I built a brand-new Rotary Valve Engine, and it works!

Many of you have seen the process of making this rotary valve engine with different intake and exhaust system and how I tried ...

Modern wonders: 10 engineering marvels that need to be seen to be believed

Many great engineering achievements of the past, from Gothic cathedrals to the Great Wall, the Golden Gate Bridge to the ...

How to prepare for possible flooding in the Valley

The Central Arizona Chapter of the American Red Cross is helping central Phoenix residents ahead of expected rain. Here's ...
CNET

EcoFlow Recalls 25,000 Delta Max 2000 Power Stations Over Fire and Burn Hazard — Here’s How to Fix Yours

The EcoFlow Delta Max 2000 portable power station is a fire hazard and you should stop using immediately. Fortunately, the fix is easy. Here's how to do it.