研發(fā)圓珠筆

    When NASA first started sending up astronauts, they quickly discovered that ballpoint pens would not work in zero gravity. To combat the problem, NASA scientists spent a decade and $12 billion to develop a pen that writes in zero gravity, upside down, underwater, on almost any surface including glass and at temperatures ranging from below freezing to 300°C.

    在美國太空總署第一次派太空人上太空時，他們很快發(fā)現(xiàn)圓珠筆無法在零重力的情況下工作。為了解決這個問題，美國太空總署花了10年時間和120億美元研發(fā)了一種可以在零重力，倒置，水下，和幾乎一切表面包括玻璃上書寫，適應(yīng)溫度的范圍從0攝氏度到300攝氏度的鋼筆。

    The Russians used a pencil.

    而俄國人用鉛筆