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Festival of the Spoken Nerd, Bloomsbury Theatre, London

If there was a theme to Festival of the Spoken Nerd's mix of science and comedy tonight then it was pyrotechnics. From a tale of homemade napalm to a demonstration of a standing wave flame tube there were flashes and bangs aplenty, if no explosive end result.

Love life flagging? Then try pork, like the president

They won't be swapping their bottles of Chimichurri for jars of mustard and apple sauce quite yet, and they can still wash dinner down with a nice Malbec, but the people of Argentina are being asked to experiment with a new addition to the national diet: pork.

Like Viagra for your brain

Professionals use them for jet lag, students to pass exams, soldiers to stay alert. Brain-enhancing drugs are the latest fix – and they're legal

How to boost your sex drive

Food, music, drugs and even scents can all help fire up flagging desire. Jane Feinmann reports on how to make Valentine's Day go with a swing