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Self-sculpting sand

Imagine that you have a big box of sand in which you bury a tiny model of a footstool. A few seconds later, you reach into the box and pull out a full-size footstool: The sand has assembled itself into a large-scale replica of the model.

USC hopes slayings won’t hurt international enrollment

For the last decade USC has enrolled the largest number of international students of any college in the country: 8,615 last year. The Los Angeles university worked hard to achieve that — recruiting students from China, India and South Korea, among 100 countries in all, and providing services for the foreign students once they get here.