The helicity associated with the writhing number is obtained by observing that a torus with twist number ±1 may be distorted into a figure-8 configuration which appears untwisted. […] Note that at each step the total helicity, consisting of the sum of twist, kink, and link helicities, is conserved.

The curtains of his office are still closed, but a soft, warm light filters past the bodyguards and into the room. It drapes his face, smooths the sharp lines of his new gauntness.

Paresthesia occurs when a body part 'falls asleep'.

O honor, farre beyond a brazen shrine, To sit with Tarleton on an ale post's signe