Question

Chasles’s (“shawls”) theorem gives that every rigid body displacement is equivalent to a displacement named for these devices. Robert Ball employed six-dimensional vectors named for these devices in his framework of their mechanics. The Burgers vector is parallel to the dislocation line of a type of crystal dislocation named for these devices. These devices name a line that is simultaneously a body’s (*) axis of rotation and path of translational motion. The movement of these devices is restricted by self-locking. “Two pi times radius over length” gives the ideal mechanical advantage of these devices. These devices consist of an inclined plane wrapped around a cylinder. For 10 points, name these simple machines that can be driven by drills. ■END■ (10[1])

ANSWER: screw [accept screw displacement or screw theory or screw dislocation or screw axis; prompt on bolts after “self-locking” is read with “What simple machine do bolts feature?”]
<Lalit Maharjan, Science - Physics&gt; ~25504~ &lt;Editor: David Bass>
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Buzzes

PlayerTeamOpponentBuzz PositionValue
Dylan ChengThomas Jefferson ABarrington A11610

Summary

2023 PACE NSC06/10/2023Y1100%0%0%116.00