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Selim I

(Encyclopedia)Selim I (Selim the Grim) sĕlĭmˈ [key], 1467–1520, Ottoman sultan (1512–20). He ascended the throne of the Ottoman Empire by forcing the abdication of his father, Beyazid II, and by killing his ...

Stark, Johannes

(Encyclopedia)Stark, Johannes, 1874–1957, German physicist, Ph.D. Univ. of Munich, 1897. From 1900 until he retired in 1922, Stark served short stints on the faculties of several academic institutions, including ...

Carnot, Lazare Nicolas Marguerite

(Encyclopedia)Carnot, Lazare Nicolas Marguerite kärnōˈ [key], 1753–1823, French revolutionary, known as the organizer of victory for his role in the French Revolutionary Wars. A military engineer by training,...

electric shock

(Encyclopedia)electric shock, effect of the passage of a current of electricity through the body. Fatality may result from shocks of from 1 to 2 amperes and 500 to 1,000 volts. However, the effect of electric shock...

mine, in warfare

(Encyclopedia)mine, in warfare, term formerly applied to a system of tunnels dug under an army fortification and ending in a chamber where either explosives were placed to be detonated at a chosen moment or the sup...

spintronics

(Encyclopedia)spintronics, spin electronics, or magnetoelectronics, science and technology that harnesses the spin state of electrons in addition to the electrical charge state to store data or perform calculation...

firearm

(Encyclopedia)firearm, device consisting essentially of a straight tube to propel shot, shell, or bullets by the explosion of gunpowder. Although the Chinese discovered gunpowder as early as the 9th cent., they did...

Louvois, François Michel Le Tellier, marquis de

(Encyclopedia)Louvois, François Michel Le Tellier, marquis de fräNswäˈ mēshĕlˈ lə tĕlyāˈ märkēˈ də lo͞ovwäˈ [key], 1641–91, French statesman, minister during the reign of King Louis XIV. After 1...

ballistics

(Encyclopedia)ballistics bəlĭsˈtĭks [key], science of projectiles. Interior ballistics deals with the propulsion and the motion of a projectile within a gun or firing device. Its problems include the ignition a...

smart weapon

(Encyclopedia)smart weapon, missile or steerable bomb equipped with a laser, television, or satellite guidance system. Smart weapons, which use guidance systems that rely on external assistance, are distinguished f...