"I used to stare at them in restaurants, open-mouthed until my little brother said 'er, Andrea, don't do that,'" she says, emitting a short burst of self-mocking laughter.

“我经常在饭店里张着嘴，呆呆的看着他们，直到我哥哥说‘别这样，安德丽亚！’”她一边说，一边自嘲的笑了起来。

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Making a more serious point, smart materials DIY-er Catarina Mota explained why it was important to open up new technology to the general public.

BBC: TEDGlobal: Burns portrait comes alive at TED