33. When we see colors, what we’re really seeing is a certain frequency and wavelength of light hitting our eyes. Photons, which are units of light, have to leave an object in order for us to pick up on pink, or blue, or that strange brown color only found in damp earth and school uniforms. Black is the absence of photons, an absence that we choose to describe as a color. There is a school of philosophy known as Existentialism, which takes the view that life is all a lot of nothing, really, and as a consequence we are all in a state of great sadness. Unsurprisingly, Existentialists don’t get invited to many birthday parties.

34. In mythology the basilisk was known as the “King of Serpents” because of its crown-shaped crest. To it were variously ascribed the capacity to kill with its gaze, its breath, or the sound of its cry. It was even said that if a soldier pierced its skin with a spear, the poison in the basilisk’s blood would flow up the weapon and kill its assailant. It was rumored to be hatched by a rooster from the egg of a toad or serpent, thus providing an interesting variation on the question of which came first, the chicken or the egg. Actually, scientists believe that they have now proved that some form of chicken came first, as a particular protein in eggshells can only be produced inside a chicken. Mind you, it was probably a very surprised chicken that pushed out the first egg: “Cluck! Mavis, dear—cluck, cluck—you won’t believe what’s just fallen out of my bottom …”