Listeria. can be found in a variety of foods, including soft cheeses (e.g. Brie, Camembert, Mexican-style fresh cheeses, Roquefort, Bleu), hot dogs and other ready to eat meats, smoked fish, lettuce, coleslaw, other salad items, ready-to-eat foods purchased from store. delicatessens, and raw milk.
The kinetic energy of the arrow during the launching process of a recurve bow is calculated in dark-green-box cells in Appendix C and shown as a dark green curve in Fig. B-2. The kinetic energy is compared with the static energy released by the bow, shown in a red curve in Fig. B-2.
The use of the bow and arrow for hunting and for war dates back to the Paleolithic period in Africa, Asia, and Europe. It was widely used in ancient Egypt, Mesopotamia, Persia, the Americas, and Europe until the introduction of gunpowder.Arrowheads were first made of burnt wood, then stone or bone, and then metals. recurved bow consists of three partsâtwo flexible limbs extending from opposite ends of a rigid riser. The bow's total length may be 50-70 in (125-175 cm). The riser, which is about 20 in (50 cm) long, provides a comfortable handgrip and a ledge on which the arrow rests prior to release.