Monday, November 12, 2007

silent alarms

My random bites of knowledge contributed by my children involve an alarm system the ancient Chinese used. They would put cricket cages around the house and when someone approached the crickets the crickets would suddenly be silent. The silence warned the inhabitants of approaching people and even from which direction they were coming from. (Yeah, I went looking for a picture of a cricket...gag; all ugly! so no picture here.)

1 comment:

Liz said...

Ryan and I decided to go with smaller home to avoid this problem with crickets.. you see we can easily watch all entrances and exits without having to run about the place.