Morpher, the folding bike helmet(头盔).

    People hate to wear a helmet because it's thick and heavy. Morpher is a bike helmet made from plastics. It is just as strong as the traditional ones, but flexible(灵活的)enough to fold almost totally flat. Also it is much easier to carry.

    Shoes that tie themselves

    After we see the movieBack to the Future,almost everyone wants a pair of self-tying shoes. Now, thanks to Nike, the shoe dream comes tnie. When you press abutton, the shoes can tie themselves.

    The smart alarm clock-Hello Sense

    An alarm clock , called Hello Sense, can improve your sleep. It can control the temperature, light and even air quality in your bedroom to help you have a perfect sleep environment. And it can record your sleep cycles.

    Sweet potatoes that could save lives

    The lack(缺乏)of vitamin A can cause blindness and many other illnesses. In sub- Saharan Africa, plant experts are helping them grow a  kind  of new  sweet potatoes. These potatoes can help them fight against some illnesses.