bezoar

You know when you come across a word you didn’t know, and then you keep seeing it everywhere? This is what happened to me with ‘bezoar’ this week (well, in two places – QI, and an episode of Audible’s excellent dramatisation of Neil Gaiman’s ‘The Sandman’). A bezoar is a solid mass of indigestible material that forms in the digestive tract. So far, so gross. But, for years many people have believed bezoars to have medicinal properties, and even that they’re full-on magical.

A ring made out of a bezoar. Why, WHY?

The word itself comes from the Persian language – specifically pād-zahr, which means ‘antidote’. In fact, if you were born in 11th-century Europe and were unfortunate enough to get poisoned, it’s likely you’d be presented with a bezoar in a glass of water by your friendly neighbourhood medicine person. That’s because they were believed to be universal antidotes that would cure any type of poison. This was proved to be utter bullshit in 1567 by a French surgeon called Ambroise Paré. He found a cook in the King’s court who’d been sentenced to death and chosen to be poisoned. He gave the unlucky chef a bezoar stone. As you can probably guess, the man died in agony seven hours after taking the poison. Merde.

It’s actually not all complete bunkum though – modern experiments have shown that bezoars can actually remove arsenic (I guess our French cook was poisoned with something other than arsenic – quel dommage).

There are lots of different types of bezoar. One of the most minging is a trichobezoar. That’s a bezoar made of undigested hair, often formed as a result of Rapunzel syndrome, a (thankfully) rare intestinal condition which comes about from eating too much of YOUR OWN HAIR. One of the largest trichobezoars I could find online was removed from the stomach of an 18-year-old woman in India and was a metre long, weighing in at 1.13kg (2.5lbs). If you’d like to feel a bit sick, you can check out the actual thing in this article. Wikipedia also lists a 4.5kg (9.9lbs) hairball which came out of a woman (ladies, what are you doing?!) in Chicago in 2006, but thankfully I couldn’t find a picture of that one (actually I didn’t look, as I didn’t think my stomach could handle it).

gird

You’ll no doubt have heard the phrase ‘to gird one’s loins’ which means to prepare yourself for something, usually stressful. It’s always given me a slightly minging image of hairy thighs rubbing together (sorry). But it’s also made me wonder where the word ‘gird’ comes from. And do we gird anything other than loins? Let’s find out…

‘To gird’ something means to encircle or bind it with a flexible band (like a belt – that’s also where we get ‘girdle’ from). Girding of loins goes all the way back to the Bible. The actual quote (from the King James version) is:

Wherefore gird up the loins of your mind, be sober, and hope to the end for the grace that is to be brought unto you at the revelation of Jesus Christ…

So, what does it actually mean? Well, ye olde Biblical fashionistas would have been decked out in long flowing tunics. Yes, these were great in the desert-y heat, but they weren’t all that practical for anything other than standing around. So when they had to do running or crucifying or killing first borns, they’d take all that long flowy fabric and tie it up with their belt like a pair of shorts, AKA ‘gird’ it round their nethers.

Because you can literally find anything on the internet, someone with too much time on his hands has put together a guide on how to gird your loins. So if you ever find yourself wearing a floor-length tunic then needing to run away from someone or something, you’re all sorted. I know, I spoil you.

Turns out you can gird something other than loins, because ‘gird’ also has a secondary meaning, which is to be sneering or mocking. So presumably if someone mucks up their tunic-tying – think the fashion show testicle in The Inbetweeners – you can be girding about the way they’ve girded their loins.

steganography

Steganography is the practice of hiding a secret message inside another message or a physical object that isn’t secret. Think Tim Messenger, Adam Buxton’s character in the film ‘Hot Fuzz’ (one of my all-time favourites) who hides messages in misspelt newspaper headlines about what’s going on in the village of Sandford (‘He’s Judge Judy and executioner!’). Other examples of steganography include invisible ink or playing a record backwards to reveal a hidden message.

Steganography is action – if you look at the first image under white, blue, green and red lights you see different hidden numbers (not that well-hidden, but still).

Etymology time (my favourite time). ‘Steganography’ comes from the Greek word steganographia. That’s made up of steganós, meaning ‘covered or concealed’, and ‘-graphia’ meaning ‘writing’. The first recorded use of the term was in 1499 by one Johannes Trithemius (amazing name) who wrote a book called ‘Steganographia’. It was a treatise on cryptography and steganography disguised as a book on magic.

The advantage of steganography over cryptography – i.e. converting text into something unintelligible so only someone who has the key or cipher can convert it back – is that the secret message doesn’t attract attention because it’s hidden in something else. So while cryptography is just about protecting the contents of a secret message, steganography hides the fact that there’s a message at all.

The earliest recorded use of steganography was in 440 BC in Greece, which Herodotus (writer, philosopher and all-round clever dude) mentions in his book ‘Histories’ (an account of the Greco-Persian Wars). A ruler by the name of Histiaeus sent a message to a minion about an upcoming revolt by shaving the head of a servant, tattoing the message on to his scalp, then sending him to deliver it once his hair had regrown. Obviously there are a lot of issues here, not least that hair growth takes a long time. Oh, and you need a new servant for every message.

Today steganography has moved on a bit. The word is commonly used to descibe the ways hackers infect people’s computers i.e. by hiding nasty bits of code in common-or-garden documents like PDFs. Then when you open the doc it installs a horrible bit of malware or ransomware on your PC. Bastards.

Warning: contains a lot of blood and some swearing (just a ‘wanker’).