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GIVE BLOOD: Today’s opportunity to donate blood is at the Hop Exchange on Southwark Street. Free, just turn up, see site for times and conditions.
JUST, WOW!: See Patrick Hughes' mindbending 3-D paintings, on show from today at Flowers Gallery, Cork Street. Free, just turn up, until 18 May
ARTS FESTIVAL: The Last Refuge's First Festival in Peckham starts today, with a mixed programme of art, theatre, comedy, poetry, etc. Runs until 4 May.
SCIENCE AND SOCIETY: Two top physicists (including one of the key figures behind ‘invisibility cloak’ technology) and the the editor of Nature take to the stage at the Royal Society to look at the touch-points ofscience and society. Free, just turn up, 6.30pm
QUANTUM: The quantum isn’t just a unit of solace. Jeff Forshaw is at the Royal Institution to introduce the quantum world and its many oddities. £10, prebook, 7pm
FANTASY: Terry Pratchett, Ian Stewart and Jack Cohen talk about the science of Discworld at Conway Hall. £8, prebook, 7pm
COMEDY: As part of a series of fortnightly preview evenings, Invisible Dot is running Two Previews for Five Pounds. Tonight is Colin Hoult and Alex Horne, bargain. £5, prebook, 7.45pm
MORE COMEDY: Viv Groksop introduces Lucy Porter, Scott Capurro, Jane Bussman and Tom Allen telling stories of the worse moments of their comedy lives, at the Royal Vauxhall Tavern. £8, prebook, 7.30pm
CRAP FILM: That may not sound like a ringing endorsement, but most people know the joy that comes from watching with growing disbelief an entirely crap film with your friends. The Crap Film Club presents For Y’Ur Height Only tonight. Free, book table via email, 8pm
Random London Quiz Question Of the Day
Can you name the only two people (presumably) who were both imprisoned in the Tower of London AND performed at the Royal Albert Hall?
Good Cause of the Day
On Saturday 27 April around 10 teenagers and young adults will be walking the length of the Northern Line (via Charing Cross) for charity. And, which is more, they'll be tied together in pairs and walking in their onesies (oh to be a student again). Keep an eye out for them along the route and, if you're feeling generous, slip a few pounds into their fundraising account, which is to support youth projects in Belarus. More here.
London Weather
The weather gods left the photocopier on, and we're blessed with a very similar day to yesterday. Sadly, the machine's running out of blue and yellow ink, meaning the next few days are going to be increasingly grey. Or magenta. Or something. We're off to photocopy our arse, to see what it does to the weather. Until then, here's the BBC forecast.
