corroding
61Mazda MX-5 — Manufacturer Mazda Also called Mazda MX 5 Miata Mazda Miata Eunos Roadster Mazda Roadster Product …
62Nuclear proliferation — World map with nuclear weapons development status represented by color.   Five nuclear weapons states from the NPT …
63Urea — Urea …
64Zinc — This article is about the metallic element. For other uses, see Zinc (disambiguation). copper ← zinc → gallium ↑ Zn ↓ Cd …
65Outboard motor — Basic parts of an outboard motor Bolinder s two cylinder T …
66Screw — 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… …
67Magnet — This article is about objects and devices that produce magnetic fields. For a description of magnetic materials, see magnetism. For other uses, see Magnet (disambiguation) …
68Reinforced concrete — is concrete in which reinforcement bars ( rebars ), reinforcement grids, plates or fibers have been incorporated to strengthen the concrete in tension. It was invented by French gardener Joseph Monier in 1849 and patented in 1867.[1] The term… …
69To Kill a Mockingbird — For the film based on the novel, see To Kill a Mockingbird (film). To Kill a Mockingbird …
70Jaws (film) — Jaws …
