Word: levers
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Ancient man's evolution into a creature standing on two legs modified his skeleton as well as his habits. The spine curved and grew longer; the ilia or wings of the pelvis flattened out; the last vertebrae became a flexible lever on which the body's weight was poised. But nature added no new muscles to support the upright...
...youngster pulled the wrong lever; it released a two-ton life raft which crashed to the deck below, miraculously injuring nobody else. But he lost a finger in the process...
...American it was the lovely, casual look of a yellow fly line falling out on running water and the first, heart-stirring tug of a hooked trout. There would be hunting soon and with it would come the cold feel and oily click of a rifle's cocking lever, the look of a deer slung across the car's radiator, the sight of ducks in mist or pheasant starting like an explosion of color from brown grass, the distant belling of a Bluetick hound...
Tuesday was different. The country was at the radio. The people began to get the self-conscious feeling that they were witnessing history. In Manhattan, as if someone had pulled a giant lever, the windows went up and paper tumbled in torrents, soon after the President's first words were heard. For minutes, a diapason of booming whistles from the grey ships in the North River seemed to drown out everything. Then, as if they might burst unless they let it off, people began to shout...
...human users, announced last week that they had found a solution to this little problem : a gadget which enables a pilot to control a heavy plane as easily as a child steers its bicycle. The device, called a "formation stick," has an arm rest and a pistol-gripped lever, which can be flicked in any direction by a finger touch. Electronics does the rest : the stick's motion is converted into an amplified electrical signal which operates the motors which operate the plane's control surfaces...