It is not they, with their comfortable middle class speaking-tour and festival-circuit lives, who will put on the black and go punch a Nazi or bash a fash. No. It will be the vulnerable, overwhelmingly queer, poor youth …

When in 1411 Emperor John VIII Palaeologos married a daughter of Vasilii II, Grand Prince of Muscovy, he sent Moscow a splendid specimen of the liturgical vestment known as a sakkos as a gift for Metropolitan Photios.

However, a cis double bond causes a kink in the chain. (A cis double bond introduces a bend of about 42 into the linear hydrocarbon chain.)

Angle A is 40°, and its complementary angle, B, is 50°.