impact-resistant plastic
91Motorcycle safety clothing — To improve motorcycle safety many countries mandate the wearing of protective clothing by motorcyclists, especially a helmet. Other protective gear may include certain types of jackets, gloves, boots, and pants. Jackets meant for motorcyclists… …
92Shell (projectile) — This article is about the artillery projectile. For the small arms ammunition, see Shotgun shell. Some sectioned shells from the First World War. From left to right: 90 mm fragmentation shell, 120 mm pig iron incendiary shell, 77/14 model 75 mm… …
93Myxobolus cerebralis — Triactinomyxon stage of Myxobolus cerebralis. Note the three tails . Scientific classification …
94literature — /lit euhr euh cheuhr, choor , li treuh /, n. 1. writings in which expression and form, in connection with ideas of permanent and universal interest, are characteristic or essential features, as poetry, novels, history, biography, and essays. 2.… …
95Paintball equipment — is central to paintball, given its equipment intensive nature. Although good equipment by no means guarantees a good player, a good player s ability can be seriously hampered by poor quality equipment. In order to safely conduct a game of… …
96Mountainboarding — MBS Pro 100 Mountainboard with noSno soft bindings Mountainboarding, also known as Dirtboarding, Offroad Boarding, Grass Boarding, and All Terrain Boarding (ATB), is a well established[1] if little known extreme sport, derived from snowboarding.… …
97Tool steel — Iron alloy phases Ferrite (α iron, δ iron) Austenite (γ iron) Pearlite (88% ferrite, 12% cementite) …
98Germany — /jerr meuh nee/, n. a republic in central Europe: after World War II divided into four zones, British, French, U.S., and Soviet, and in 1949 into East Germany and West Germany; East and West Germany were reunited in 1990. 84,068,216; 137,852 sq.… …
99Screw — This article is about the fastener. For other uses, see Screw (disambiguation). Screws come in a variety of shapes and sizes for different purposes. U.S. quarter coin (diameter 24 mm) shown for scale. A screw, or bolt, is a type of fastener… …
100Structural engineering — is a field of engineering dealing with the analysis and design of structures that support or resist loads. Structural engineering is usually considered a speciality within civil engineering, but it can also be studied in its own right. [cite… …
