Hot, or Active Composting. The quickest way to produce rich garden humus is to create a hot, or active, compost pile. It is called âhotâ because it can reach an internal temperature of 160Â°F (140Â°F is best) and âactiveâ because it destroys, essentially by cooking, weed seeds and disease-causing organisms.
The University of Kiel was founded on 29 September 1665, by Christian Albert, Duke of Holstein-Gottorp. A number of important scholars, including Theodor Mommsen, Felix Jacoby, Hans Geiger and Max Planck, studied or taught there.
Johann Christian Seydel and Christian August Seydel began making harmonicas in 1847 and founded a factory in Klingenthal shortly afterwards, which is currently the oldest harmonica factory in the world.