December 12, 2012

Advent Chemistry: Cyanide

The cyanide ion consists of one carbon, triple-bonded to one nitrogen, with a negative charge on the carbon. And it is, as I’m sure you’re aware, a deadly poison. The thing is, though, that it’s only the cyanide ion that’s poisonous. The functional group of...

Advent Art History: Naked Baby Jesus Advent Calendar – December 12

Central panel of the St Lucy Altarpiece Domenico Veneziano 1445-47 Tempera on panel 209 x 216 cm This kind of painting is called a sacra conversazione (sacred conversation) because the Virgin and Child inhabit the same perspectival space as the saints; the architecture and space...

December 11, 2012

Link to Where to start?

Advent Trading: Where to start?

The White Rabbit put on his spectacles. “Where shall I begin, please your Majesty?” he asked. “Begin at the beginning,” the King said gravely, “and go on till you come to the end: then stop.” (Alice’s Adventures in Wonderland,┬áChapter 12) Good advice if ever one...

Advent Roller Derby: What’s in a name?

There is a convention among rollergirls that no two skaters can have the same name. There is an enormous list of them at Two Evils, names like Metallikat, Snot Rocket Science, Ewan Wotarmy, Napoleon Blownapart, Barrie DeHatchet and #04 Fox Sake. It all started with...

Advent Atmosphere: Ocean Currents

The ocean currents are a single vast system, spanning the globe. Water rises in the north Pacific and flows, a few hundred metres below the surface, past the northern coast of Australia to join the water rising in the Indian Ocean. The combined current flows...

Advent Chemistry: Carvone

Today, I think we’ll give the bonding issue a rest, and look at something new: isomerism. “Isomers” are molecules that have the same structure, almost. That is, if you add up the numbers of each kind of atom, you get the same totals. But if...

Advent Art History: Naked Baby Jesus Advent Calendar – December 11

The Virgin of Humility c.1436-38 Fra Angelico (Italian, 1390/5-1455) Tempera on panel 29 1/8 x 24 inches Fra Angelico was a monk and painter in Florence. Like with a lot of early Renaissance artists, Fra Angelico wasn’t actually his name, it was a name given...

Link to Why does the price move?

Advent Trading: Why does the price move?

When a symbol is initially posted on an exchange it’s called an IPO or ‘Initial Public Offering’, which is essentially the bosses of the company saying, “I think a share of my┬ácompany is worth this much!”. If nobody bought or sold the shares at that...

December 10, 2012

Advent Roller Derby: Skater profile – John Don’t

Time for a skater profile! First up we have a relatively new skater from Suffolk, John Don’t! What’s your name / number? John Don’t (#999) Who do you skate for? Ipswich Roller Derby / Blue Thunder Rollers [an Anglo-American co-ed league based in Mildenhall and...

Advent Chemistry: Capsaicin

Capsaicin is a wonderful compound. It appeals to the evil part of me, because a strong solution of capsaicin is essentially liquid pain. Hey, I never said my evil side was nice. Capsaicin is the active compound in chilli peppers – the bit that makes...