December 11, 2012

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 company 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...

Advent Atmosphere: Great Lakes

The cold snap in Europe 12,000 years ago was caused by things warming up in North America. Europe is warmed by an ocean current called the North Atlantic Drift, which is the Gulf Stream to you and me. For fairly complicated reasons, if there’s too...

Link to The Naked Baby Jesus Advent Calendar, December 10

Advent Art History: The Naked Baby Jesus Advent Calendar, December 10

Virgin and Child with Saints Barbara and Elizabeth and the donor, Jan Vos Jan van Eyck 1441-3 Oil on panel Here’s a detail of the Virgin and Child: We’re back to Jan van Eyck again today simply because he was one of the finest painters...

December 9, 2012

Advent Roller Derby: Scrimmage

Scrimmage is usually a private part of a league’s training, allowing them to try out new tactics, line-ups, and plays. Occasionally you might see something called a mixed scrimmage, this is open to skaters from other leagues. It’s a really important way of learning the...

Advent Chemistry: Water

That up there is a water molecule. Now, I know you think water isn’t very interesting, but bear with me. There’s a reason I like water, and it’s not just because it makes me live. It’s a really interesting and unusual chemical. Water is extremely...

Advent Atmosphere: Younger Dryas

The Younger Dryas event is named after the kind of pollen used as a proxy for the temperature. Dryas octopetala grows at the edge of icy regions. So if you find its pollen at a particular time in a particular place, you know that’s where...

Link to The Naked Baby Jesus Advent Calendar, December 09

Advent Art History: The Naked Baby Jesus Advent Calendar, December 09

Virgin and Child Juan de Flandes c1510 I’ve chosen today’s painting for the composition. In this painting, the Christ Child is supported by a ledge. This was a common pictorial device in the second half of the fifteenth century. Ledges are generally there to lead...

December 8, 2012

Advent Roller Derby: Equipment

There’s a basic equipment list that every rollergirl, rollerboy, and referee needs to have. There are varying budgets, but I’m reliably informed you can get started in roller derby for about £200. Firstly you have the things that propel you forwards: skates! There are many...