This has probably been covered before but last night on Pawn-Stars they showed a "Noon-Day Cannon". Back in the 17 and 1800's, rich folks had a small loaded cannon mounted on a base that was a sun-dial. there were as set of brackets that held a magnifying glass. The glass was positioned in a way that when noon time came around. The sunbeam would be directed and concentrated on the touch-hole of the cannon. The cannon would go off and let everyone on estate know that it was time for lunch. Sure hope they had the dogs kenneled up. ......
http://www.gemmary.com/media/catalo...8eab33525d08d6e5fb8d27136e95/0/4/04-020_5.jpg
Be Safe !!!
http://www.gemmary.com/media/catalo...8eab33525d08d6e5fb8d27136e95/0/4/04-020_5.jpg
Be Safe !!!