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The weight is then pressed overhead. [3] While the exercise can be performed standing or seated, standing recruits more muscles as more balancing is required in order to support the lift. [4] Other variations of the exercise include the push press, a similar movement that involves an additional dipping motion in the legs to increase momentum. [1]
The jerk is completed when the lifter re-straightens the legs (bringing them together after a split jerk) so they come to a straight standing position with the barbell held overhead. A third lift, the clean and press, was also a competition lift from 1924 through 1972. It entails a clean followed by an overhead press.
The bench press or chest press is a weight training exercise where a person presses a weight upwards while lying horizontally on a weight training bench. The bench press is a compound movement, with the primary muscles involved being the pectoralis major, the anterior deltoids, and the triceps brachii. Other muscles located in the back, legs ...
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A partially disassembled Curta calculator, showing the digit slides and the stepped drum behind them Curta Type I calculator, top view Curta Type I calculator, bottom view. The Curta is a hand-held mechanical calculator designed by Curt Herzstark. [1] It is known for its extremely compact design: a small cylinder that fits in the palm of the hand.
A screw press is a type of machine press in which the ram is driven up and down by a screw. The screw shaft can be driven by a handle or a wheel. It works by using a coarse screw to convert the rotation of the handle or drive-wheel into a small downward movement of greater force. The overhead handle usually incorporates balls as flyweights. The ...
Classification of Axonometric projection and some 3D projections "Axonometry" means "to measure along the axes". In German literature, axonometry is based on Pohlke's theorem, such that the scope of axonometric projection could encompass every type of parallel projection, including not only orthographic projection (and multiview projection), but also oblique projection.
An Indian Wehrmacht volunteer in a Tobruk DFP along the Atlantic Wall, 1944. During the fighting in North Africa (1942–43), U.S. forces employed the shell scrape.This was a very shallow excavation allowing one soldier to lie horizontally while shielding his body from nearby shell bursts and small arms fire.