Coffin technologies that protect you from being buried alive

In the eighteenth century, rumors swirled about people accidentally buried alive when they lapsed into a deathlike state from cholera. As a result, the safety coffin was invented. Here's how it worked. » 10/28/10 3:00pm 10/28/10 3:00pm

Coffins from the eighteenth century sometimes came equipped with an elaborate bell system, which…