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Demon core. A re-creation of the experiment involved in the 1945 incident. The sphere of plutonium is surrounded by tungsten carbide blocks acting as neutron reflectors. The demon core was a sphere of plutonium that was involved in two fatal radiation accidents when scientists tested it as a fissile core of an early atomic bomb.
A folding switchblade. A switchblade (also known as switch knife, automatic knife, pushbutton knife, ejector knife, flick knife, gravity knife, flick blade, or spring knife) is a pocketknife with a sliding or pivoting blade contained in the handle which is extended automatically by a spring when a button, lever, or switch on the handle or bolster is activated.
Since inaugural 1960 Summer Paralympics. Table tennis (also known as ping-pong or whiff-whaff) is a racket sport derived from tennis but distinguished by its playing surface being atop a stationary table, rather than the court on which players stand. Either individually or in teams of two, players take alternating turns returning a light ...
The goedendag (or variant spellings) was a Flemish weapon which is often described in modern sources as similar to the morning star. However, this is a misconception; it was an infantry weapon in the form of a thick wooden shaft between 1.2 to 1.8 m (3.9 to 5.9 ft) in length, slightly thicker toward the top, topped with a stout iron spike.
The ball python ( Python regius ), also called the royal python, is a python species native to West and Central Africa, where it lives in grasslands, shrublands and open forests. This nonvenomous constrictor is the smallest of the African pythons, growing to a maximum length of 182 cm (72 in). [2] The name "ball python" refers to its tendency ...
The Ball (2011), an Australian documentary, runner up for the 2011 AACTA Award for Best Documentary Under One Hour; The Ball, a 1632 play by James Shirley; Games. Ball (Game & Watch), a game for the Nintendo Game & Watch; The Ball, a 2010 video game; Music Groups. Balls (rock band), a 1969–1971 British rock band
The typical test uses a 10 mm (0.39 in) diameter steel ball as an indenter with a 3,000 kgf (29.42 kN; 6,614 lbf) force. For softer materials, a smaller force is used; for harder materials, a tungsten carbide ball is substituted for the steel ball. The indentation is measured and hardness calculated as:
Blade is an action game based on the 1998 film Blade.It was developed by HammerHead for the PlayStation in 2000, and by HAL Laboratory and Avit Inc. for the Game Boy Color.The game was published by Activision and serves as a prequel to the movie, following the adventure of Blade with help of his mentor and friend Abraham Whistler.