Re: (off topic) Unsinkable 97 years ago.

Four years ago, when my younger daughter was finishing the eighth grade, each student was required to do a "capstone" project. The idea was that they would do something involving everything they had done in Jr High.

She decided to do something related to the Titanic. She developed maps for geography, borrowed a period dress for Home Ec, etc. For PE, she decided to tread water for five minutes; this was April, when the lake was still quite cold. I don't remember the details, but she did take her temperature both just before she entered the water and just after she got out, and despite getting exercise during that time, her body temperature dropped something like three degrees. That turned out to be a dramatic demonstration of how quickly hyperthermia can strike when a body is in cold water.