article_snippet.sent: To counteract even the slightest shifts in gravitational pull, experts must build the jet on 'floating' concrete rafts that move in sync with the moon.
article_snippet.sent: To counteract even the slightest shifts in gravitational pull, engineers build the jet on 'floating' concrete rafts. 'floating' concrete rafts measure 59ft (18 metres) long and 9.8ft (3 metres) thick and are used to house the measuring equipment.
article_snippet.sent: To counteract even the slightest shifts in gravitational pull, engineers build the jet on 'floating' concrete rafts (pictured).
highlights_snippet.sent: To counteract shifts in gravitational pull, engineers build Typhoon on 'floating' concrete rafts with laser trackers and computer-automated jacks .
  