Why do we sleep? Should we nap?

I have written in the past about sleep, in particular how interesting and revealing the study of sleep was for me at University (see here). What has always baffled me is that Sleep Researchers still have never scientifically proven why adult human beings need to...

ATM or Computer Screen Readability in the Sunlight

Here’s a business opportunity for an enterprising individual: create a screen that can be read despite the sunshine.  I was in Naples last week and, braving the 40C degree heat, I attempted to draw some money from an ATM (pictured below).  With the...

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