How the Lock, Grommet and Screw Have Changed Over Time

Leveling feet

Did you know that, contrary to popular belief, iron maidens were not invented in the Middle Ages, and were never used as an agent of torture? At least, there is no evidence of any such practice. In reality, iron maidens, which are an iron cabinet with a spike covered interior, were initially compiled in the 1800s from pieces of old artifacts. The intent was to create unique objects for commercial exhibition.

Many of us don’t understand the interesting history of objects and tools we use everyday. What context are you missing? Here are three objects, as well as their intriguing background.

1. The Lock

The very first locks were designed over 4,000 years ago in ancient Egypt, and they were fairly simple yet ingenious in design. They worked in a similar nature to our indoor locks today, excep

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