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Merry-Go-Round: A carousel is a type of amusement ride consisting of a rotating circular platform with seats for riders. The "seats" are traditionally in the form of rows of wooden horses or other animals mounted on posts, many of which are moved up and down by gears to simulate galloping, to the accompaniment of looped circus music. 1925 ...
Seesaw in 1792 painting by Francisco de Goya A set of conjoined playground seesaws. A seesaw (also known as a teeter-totter) is a long, narrow board supported by a single pivot point, most commonly located at the midpoint between both ends; as one end goes up, the other goes down.
Mani Giunte is an Italian gesture used when expressing exasperation or disbelief by putting both palms together in prayer and moving them down and back up towards your chest repeatedly. Also known as the "Mother of God". [26] Mano a borsa is an Italian gesture, used when something is unclear. It is created by extending all the digits on the ...
Reciprocating motion, also called reciprocation, is a repetitive up-and-down or back-and-forth linear motion. It is found in a wide range of mechanisms, including reciprocating engines and pumps. The two opposite motions that comprise a single reciprocation cycle are called strokes. [citation needed]
What are eight 8s that add up to 1,000? 8 + 8 + 8 + 88 + 888 = 1,000. How do you write 23 using only the number 2? 22 + 2/2 = 23. When Rebecca was 8 years old, her little brother, Bob, was half ...
The up and down quarks are named after the up and down components of isospin, which they carry. [60] Strange quarks were given their name because they were discovered to be components of the strange particles discovered in cosmic rays years before the quark model was proposed; these particles were deemed "strange" because they had unusually ...
A A-grade Also aid climbing grade. The technical difficulty grading system for aid climbing (both for "original" and an adapted version for "new wave"), which goes: A0, A1, A2, A3, A4, A5 and up to A6 (for "new wave"). See C-grade. Abalakov thread Abalakov thread Also V-thread. A type of anchor used in abseiling especially in winter and in ice climbing. ABD Also assisted braking device. A term ...
Box for a WHEE-LO toy The Schylling "magnetic gyro toy" has a design that is very similar to the original WHEE-LO toy.. WHEE-LO is a trademark for a handheld toy that propels a plastic wheel along both sides of a metal track with magnets built into the wheel.