Star Trek at 50 - Automatic Doors

Automation, as it turns out, is not a new concept. A Greek inventor named Heron contemplated the notion some 2,000 years ago. He describes not one, but two different automatic door applications. The first application used heat from a fire lit by the city's temple priest.  After, a few hours atmospheric pressure built up in a brass vessel causing it to pump water into adjacent holding containers. These holding containers acted as weights, that through a series of ropes and pulleys would open the temple's doors, at just about the time people were to arrive for prayer.  Heron used a similar application to open the gates to the city.

This week, a look at automatic doors.

TTFN, Fred.

Quote of the week: "Feelings aren't positive or negative Data, it's what you do with those feelings that becomes good or bad."  - Counselor Deanna Troi , Star Trek: The Next Generation, "Descent Part 1" 

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