Group items tagged

In a report on their findings the researchers said: 'We conclude men's cognitive functioning may temporarily decline after an interaction with an attractive woman.'

Construction guys have the best toys, and that one is the most mysterious to me. It's a pump. A cement mixer dumps readymix into a hopper at the bottom, and it pumps the concrete up as much as four floors. That's quite a column, and wet concrete is heavy. What kind of pump can move a liquid loaded with hard chunks (gravel) against that much back pressure? I suppose it's a screw, simply because I can't imagine anything else that could work, but it's still astounding.

Just thought I would share something completly different today ... see if we can get the construction guy interested in this web site :)