Things To Do In London Today: Tuesday 19 March 2013

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GIVE BLOOD: Today you can donate blood at the Salvation Army HQ on Queen Victoria Street. Free, just turn up, see site for times and conditions

ART: JAPANESE 'MA': Focussing on the Japanese concept of 'Ma' — a spatial concept which perceives space as a time flow — this exhibition by Junko O'Neill opens today for a week only. You can also join in with a public programme of events across the week. Free (check website for cost of events), just turn up, until 24 March

ART: DOGS IN CARS: Photographer, Martin Usborne, has taken the familiar scene of a slightly forlorn dog left in a car and built on it to create a unique and visually beautiful photographic exhibition. Free, just turn up, until 27 April

SIR CHRISTOPHER WREN: Join Tony Tucker at the Guildhall Library as he takes you through the life and works of Wren, with particular focus on his City Churches. Free, just turn up, 2pm (early arrival recommended)

MONEY: As part of Glenn Wilson’s series of lectures at Gresham College, today he tackles the subject of to what extent money affects human behaviour and how our relationship with money says a lot about who we are. Free, just turn up, 6pm

LITERARY EVENT: Crime/SF/thriller authors Peter James and Michael Marshall talk about their latest novels with critic Peter Guttridge, at Foyles. £3, prebook, 6.30pm

LECTURE: Is Multiculturalism Dead? discusses whether multiculturalism has reached the end of the road and if so, what the alternatives are. Free, just turn up, 6.30pm

BOOK READING: Over at Daunt Books Marylebone Sara Wheeler, intrepid literary traveller, talks about 19th century women travelling America, for her new book, O My America. £8 (including wine), prebook, 7pm

KING PONG: Nowhere near as smelly as the name suggests (hopefully), Super King Pong is a weekly ping pong tournament. There are both singles and doubles tournaments, with bar tabs for winners. £2, just turn up, registration from 7pm

FILM SCREENING: Oval Space Cinema Club presents 'Jiro Dreams of Sushi' this evening - a delightful sounding feature film about Jiro Ono, an 85 year old sushi chef whose restaurant, tucked away in a Tokyo subway station, has only 10 seats but boasts three Michelin stars. There will also be a full bar and Japanese inspired treats. £9/£7.50, prebook, doors open 6pm and film starts 7.30pm

GIG: Hurry! There are still tickets available to see Ryan Adams perform tonight at the Royal Albert Hall, to benefit the Teenage Cancer Trust. £35-£75, prebook, 7.30pm

FREE FILM: Camberwell's Free Film Festival continues this evening with a showing of All About My Mother at The Cambria public house. Free, just turn up, 7.30pm

LOLITICS: Chris Coltrane’s friendly politics night Lolitics is back at Camden’s Black Heart. Guests include satire supremo Andy Zaltzman, Tiffany Stevenson, Maeve Higgins, Jim Campbell, Luke Toulson and Tory MP Sir Ian Bowler. £3, just turn up, 8.30pm

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Random London Fact of the Day
Today's entry isn't so much a fact as an appeal for more info. Reader Caroline Halstead-Smith asks the following: "I just heard this in my office from someone else's afternoon googling, but apparently Blackfriars Bridge represents the line between fresh water and salt water in the Thames. It's not exact, but broadly, there are seabirds east of it and fresh water birds west of it." Well, we always believed that the Thames stops being tidal at Teddington, so presumably some salt water makes it that far. But does anyone know at which point in the river freshwater fish (and therefore the kinds of birds that feed on them) are first found? Is it around Blackfriars? We're as ignorant as a blindfolded tench.

London Weather
Have a guess. Yes, that's right. That's the forecast.