Place rack back in roasting pan and bake in oven for 10 minutes, reduce temperature to 250Â° and bake for 60-90 minutes (time will vary depending on whether you have a short fat roast or a thin long roast). My roast took 90 minutes to reach 145Â° internal temperature.
Noun[edit] hornbook â(plural hornbooks) A single page containing the alphabet, covered with a sheet of transparent horn, formerly used for teaching children to read.
Air horn. An air horn is a pneumatic device designed to create an extremely loud noise for signaling purposes. It usually consists of a source which produces compressed air, which passes into a horn through a reed or diaphragm. The stream of air causes the reed or diaphragm to vibrate, creating sound waves, and the horn amplifies the sound so it is louder. Air horns are widely employed as vehicle horns, installed on large semi-trailer trucks, fire trucks, trains, and some ambulances as a warning device, a