read the text. at bike sharing stations, peop...
read the text. at bike sharing stations, people can rent bikes as they please. but many riders forget to bring helmets. designer isis shiffer wanted to design a helmet that people could buy at the stations. the helmet needed to fit inside a vending machine so it could be sold easily. to make it fit, shiffer designed the helmet to fold flat. the helmet also had to be cheap. the answer was to make the helmet from paper, an inexpensive material. one worry was that paper would not be strong enough to protect a persons head. to address this concern, shiffer arranged the paper in a honeycomb pattern that made it very strong. match the problems with their solutions. the helmet can fold flat. the helmet uses a honeycomb design. the helmet is made of paper. problem solution the helmet needed to be convenient to sell. the helmet needed to be cheap. the helmet needed to be strong.