Gregor Mendel is known as the Father of Modern Genetics. He is a pretty big name in the science world. However, he did not receive any of this credit while he was alive. We'll come back to this later. Mendel was born in Austria in 1822. His parents were farmers. When he was young and on the farm, Mendel became very interested in plants, trees, and fruit.
Bought this fan for my garage fridge that I use to dry age beef and air Dry Cappicolas. Uses 2 D batteries. Put 2 new batteries in and have been running this fan for approximately 10 to 12 hours per day not counting today its been 7 days. Fan Box states up to 40 hours operation on 2 D's.
Ted, the length of time a 9V battery will run a small fan depends entirely on the battery and the fan. A good battery with a fan that has very low power consumption will run for several hours. Iâve had them run as long as eight hours at a long event with turning them off from time to time.