A two-day festival at the Royal College of Art with 80 debates, over 300 speakers and over 2,000 people in attendance on the topics concerning all of us today.

Whether you are vexed by 'The Big Society' or want to contemplate whether apes should have rights, the Battle of Ideas is your forum. A diverse group of eminent speakers, including David Aaronovitch and Julie Bindel, will take to the stage throughout the weekend and there will always be the opportunity for you to have your own say too. This is a celebration of Freedom of Speech with no holds barred! Let battle commence!

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COMPETITION: 1x Pair of tickets to attend ‘Battle of Ideas’ at the Royal College of Art.
To claim your tickets, send an email to vienna@run-riot.com with the correct answer in the ‘subject’ box. The winner will be randomly selected.
Q: From bright ideas to lightbulbs - the modern world is, an electrified world. The lightbulb, in particular, profoundly changed human existence by illuminating the night and making it hospitable to a wide range of human activity. The electric light, one of the everyday conveniences that most affect our lives, was invented by Thomas Edison in 1879. However, he was neither the first nor the only person trying to invent an incandescent lightbulb. Now, the question is… Instead of Carbon, what material are the modern-day lightbulb filaments made from?
A: 1) Beryllium .2) Tungsten .3) Radon .4) Plutonium