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The uneven bars or asymmetric bars is an artistic gymnastics apparatus. It is made of a steel frame. The bars are made of fiberglass with wood coating, or less commonly wood. [1] The English abbreviation for the event in gymnastics scoring is UB or AB, and the apparatus and event are often referred to simply as "bars".
The BARS technology was invented around 1989–1991 by the scientists from the Institute of Geology and Geophysics of the Siberian Branch of the Academy of Sciences of the USSR. [2] In the center of the device, there is a ceramic cylindrical reaction cell of about 2 cm 3 in size. The cell is placed into a cubic-shaped pressure-transmitting ...
Kipp's apparatus, also called a Kipp generator, is an apparatus designed for preparation of small volumes of gases. It was invented around 1844 by the Dutch pharmacist Petrus Jacobus Kipp and widely used in chemical laboratories and for demonstrations in schools into the second half of the 20th century. It later fell out of use, at least in ...
The Hopkinson pressure bar was first suggested by Bertram Hopkinson in 1914 [1] as a way to measure stress pulse propagation in a metal bar. Later, in 1949 Herbert Kolsky [2] refined Hopkinson's technique by using two Hopkinson bars in series, now known as the split-Hopkinson bar, to measure stress and strain, incorporating advancements in the cathode ray oscilloscope in conjunction with ...
A handstand. Parallel bars are floor apparatus consisting of two wooden bars slightly over 3.4 metres (11 ft) long and positioned at 200 centimetres (6.6 ft) above the floor. Parallel bars are used in artistic gymnastics and also for physical therapy and home exercise. [1] Gymnasts may optionally wear grips when performing a routine on the ...
Skill on the uneven bars, parallel bars or high bar in which the gymnast lets go of the apparatus, performs a skill in the air, and regrasps the bar. Ribbon A gymnastics apparatus used in rhythmic gymnastics. The ribbon is a long piece of material attached to a stick. Rings See still rings. Roundoff
A high-performance countercurrent chromatography system. Countercurrent chromatography (CCC, also counter-current chromatography) is a form of liquid–liquid chromatography that uses a liquid stationary phase that is held in place by inertia of the molecules composing the stationary phase accelerating toward the center of a centrifuge due to centripetal force [1] and is used to separate ...
Short-path vacuum distillation apparatus with vertical condenser (cold finger), to minimize the distillation path; 1: Still pot with stirrer bar/anti-bumping granules 2: Cold finger – bent to direct condensate 3: Cooling water out 4: cooling water in 5: Vacuum/gas inlet 6: Distillate flask/distillate. Short-path distillation is a distillation ...