BERLIN — The “Evidence” from which the Ai Weiwei exhibition at the Martin-Gropius-Bau derives its name could be the displayed collection of hard drives, laptops and notebooks the Chinese authorities confiscated after arresting the artist in 2011 as he tried to board a plane. Or it could be the life-size replica of the cell where he was held under constant surveillance for 81 days following his detention. Or even the 6,000 wooden stools that fill the sunken atrium of the space, in a silent testimony to a lost way of life in the Chinese countryside.

Fighting the system used to be dangerous anywhere in Eastern Europe. For one protester from a small Romanian village it was disastrous - and also for his family, whose every word was recorded by the secret police. Carmen Bugan, who found the transcript of her childhood, tells their story.

Most people, he said, think art and science are two different worlds. “I used to think they were very separate, but they’re actually very similar. You have to be creative and you have to be observant.”

The stand-off in Ukraine has revived memories of the Cold War, but for many under the age of 40 the events of that conflict now seem far off. The US, UK and France were allied with the communist Soviet Union during World War Two, but as it became clear victory in the war was approaching new battle lines started to be drawn. What followed was 45 years of tension, marked by espionage and proxy wars involving client states, all undertaken with the knowledge of the nuclear catastrophe that actual war would bring. People who experienced the key events of the conflict describe how it affected them - and Cold War expert Scott Lucas, of Birmingham University and EA WorldView, explains how they fitted into the bigger picture.

This week it was revealed that a huge stash of modern art had been found in a flat in Munich. Many of the paintings were considered "degenerate" by the Nazis, who staged an exhibition especially to ridicule them. Why did Hitler hate abstract art so much?

They're also obsessed with illusions because they can teach us about the mundane, nonillusory percepts that help us navigate everyday life so effectively.

Vision scientists are obsessed with illusions. This isn't because illusions shatter the sense that we have direct access to the physical properties of the external world. And it isn't because illusions give us the feeling — itself a deception — that for one brief moment we've transcended appearance to understand things as they truly are. At least, these aren't the only reasons vision scientists are obsessed with illusions. They're also obsessed with illusions because they can teach us about the mundane, nonillusory percepts that help us navigate everyday life so effectively.

They're also obsessed with illusions because they can teach us about the mundane, nonillusory percepts that help us navigate everyday life so effectively.

Ngram Viewer

We hear the thrum of urban life, overhear the neighbors arguing next door; we eavesdrop, whether we want to or not, on the conversations of co-workers. In medical waiting rooms or hospitals, we’re often privy to nurses and doctors discussing a patient (or, worse, as I experienced recently, to the decidedly un-relaxing sounds of Southern country rock blaring in a mammography clinic). These are things we often don’t want to hear, and with smarter design we shouldn’t have to.Continue reading the main story All of ARUP’s offices have a resource — the Sound Lab — that allows clients to listen to the soundscape of an environment or the acoustics of a space at the early design stages, before that environment or space even exists.

Adults often find surprising subtexts in children’s literature – but are they really there?

Just because we might not be aware of such adult messages when we read books as kids, doesn’t mean we aren’t absorbing them, she adds. “However far this kind of ‘message’ seems to leap out at the adult reader, it is probably closer to the truth to say that the message has always been there but the knowledge that allows it to be recognised has not.”

Harvard philosopher Michael Sandel in conversation with Nigel Warburton outlines 3 answers to the question 'What is Justice?', Jeremy Bentham's, Immanuel Kant's, and Aristotle's. Listen to Michael Sandel on Justice Philosophy Bites is made in association with the Institute of Philosophy.

Did you always want to be an artist? No. I decided to become an artist in the late 1970s to try to escape the totalitarian conditions in China. Everybody wants to be part of the big power, so there are lies and false accusations everywhere. For me, art is an escape from this system.

Are the 85 richest people in the world as wealthy as the world's poorest half? A number of listeners got in touch to ask about this fact, widely reported around the world, from the Washington Post to CNN. The figure comes from a report by British aid charity Oxfam. It got lots of attention, so the charity produced another figure for the UK, stating that the five richest families had more wealth than the poorest 20%. But how were these figures calculated?

There are precedents for such reclaiming—pejorative words like “queer” and even “slut,” for instance, which their targets have taken over and brandished with pride. But maybe a more apt comparison would be the word “nerd.” “Nerd” used to be a put-down—and it used to cover boys more often than girls. Like “bossy,” it wasn’t really that harsh, but it wasn’t nice, either. It actually had a gender dimension, too, because it called out brainy boys who were not athletic or aggressive. It was a dis of boys who lived in their heads and wore pocket protectors and ate their lunch indoors, playing chess. Just as “bossy” might be said to undermine female leadership, “nerd” might be said to have undermined male intellectualism. But now “nerd,” and its close cousin “geek,” are words that lots of people are happy to identify with, humble-bragging about their obsessive expertise. Brainiac techies can get rich these days, and that has helped spiff up the image of nerdery. John Green, an author of young-adult novels, and his brother Hank have developed a thriving online and off-line community of “nerdfighters,” girls as well as boys, who like to say that they fight for good with their brains and hearts, calculators and trombones. They have heartthrobs like the actor Benedict Cumberbatch. They find each other on Tumblr.