The first travellers rocket-blasted from the earth will experience the mule-kicks of acceleration. Then they will experience the mosquito - bite irritations of a gravity-free existence in a cramped spaceship.Let us review the seriocomic aspects of trying to live without gravity.Picture yourself in a gravity-free spaceship. You're seated at a dinner table with a meat, platter and glass of water before you. You're thirsty. You raise the glass to your lips, accelerating it in the process.As the glass reaches your lips you decelerate it to a stop. The water, however, is not fastened to the glass. October 30, 1955. (Photo by Press Feature Service Pty. Ltd.).