Astronauts normally drink from pouches using straws, to prevent liquids from spilling out in weightlessness, but Pettit wanted to show that they could sip from cups.

• 为了防止液体在失重的环境下溅出，宇航员通常只能用吸管吮吸装在袋中的饮料，但有了佩提特的这个新发明，宇航员们从此可以用杯子喝水了。