rod lattice
51Samarium — promethium ← samarium → europium ↑ Sm ↓ …
52Copper — For other uses, see Copper (disambiguation) …
53Vympel R-77 — Infobox Weapon is missile=yes name=R 77/RVV AE (NATO reporting name: AA 12 Adder) caption= origin= type=Medium Range Active Radar Homing Air to Air Missile used by= manufacturer=Vympel unit cost= propellant= production date= service=1994 (R 77)… …
54Martha Cotter — is professor of Chemistry at Rutgers University, New Jersey. Cotter arrived at Rutgers in 1972 and has had mainly administrative tasks since 1995, when she became acting Dean of Douglas College, a position she held for 18 months. Currently, she… …
55List of Russian people — The Millennium of Russia monument in Veliky Novgorod, featuring the statues and reliefs of the most celebrated people in the first 1000 years of Russian history …
56Spontaneous symmetry breaking — Quantum field theory (Feynman diagram) …
57Arc welding — uses a welding power supply to create an electric arc between an electrode and the base material to melt the metals at the welding point. They can use either direct (DC) or alternating (AC) current, and consumable or non consumable electrodes.… …
58Pulsed laser deposition — (PLD) is a thin film deposition (specifically a physical vapor deposition, PVD) technique where a high power pulsed laser beam is focused inside a vacuum chamber to strike a target of the desired composition. Material is then vaporized from the… …
59Nafion — Identifiers CAS number 66796 30 3  …
60Fuel fleas — are microscopic hot particles of new or spent nuclear fuel. While small, they tend to be intensely radioactive. The fuel particles, the size about 10 micrometers, are a strong source of beta and gamma radiation and a weaker source of alpha… …
