Easter Island Mystery Solved? New Theory Says Giant Statues Rocked. A remote, bleak speck of rock in the middle of the Pacific, Easter Island, or Rapa Nui, has mystified the world ever since the first Europeans arrived in 1722. How and why did the ancient islanders build and move nearly 900 giant statues or moai, weighing up to 86 tons? And how did they transform a presumed paradise into a treeless wasteland, bringing ruin upon their island and themselves? NOVA explores controversial recent claims that challenge decades of previous thinking about the islanders, who have been accused of everything from ecocide to cannibalism. Among the radical new theories is that the islanders used ropes to "walk" the statues upright, like moving a fridge. With the help of an accurate 15-ton replica statue, a NOVA team sets out to test this high-risk, seemingly unlikely theory—serving up plenty of action and surprises in this fresh investigation of one of the ancient world's most intriguing enigmas.
For centuries, scientists have tried to solve the mystery of how the colossal stone statues of Easter Island moved. Now there's a new theory—and it rocks.
The multiton behemoths traveled up to 11 miles (18 kilometers) from the quarry where most of them were carved, without the benefit of wheels, cranes, or even large animals.
Scientists have tested many ideas in the past, figuring that the islanders must have used a combination of log rollers, ropes, and wooden sledges. Now a pair of archaeologists have come up with a new theory: Perhaps the statues, known as moai, were "engineered to move" upright in a rocking motion, using only manpower and rope.
Terry Hunt of the University of Hawaii and Carl Lipo of California State University Long Beach have worked closely with archaeologist Sergio Rapu, who's part of the South Pacific island's population of indigenous Rapanui, to develop their idea. They've observed that fat bellies allowed the statues to be tilted forward easily, and heavy, D-shaped bases could have allowed handlers to roll and rock the moai side to side.
Last year, in experiments funded by the National Geographic Society's Expeditions Council, Hunt and Lipo showed that as few as 18 people could, with three strong ropes and a bit of practice, easily and relatively quickly maneuver a ten-foot (three-meter), five-ton moai replica a few hundred yards (a few hundred meters). No logs were required. (National Geographic News is a division of the Society.
In previous efforts to solve the mystery, Czech engineer Pavel Pavel worked with Norwegian explorer-adventurer Thor Heyerdahl and a team of 17 helpers to propel an upright, 13-foot (4-meter), nine-ton moai forward with twisting motions, keeping the statue fully upright at all times. That was in 1986. But Pavel's team damaged the moai's base and had to stop. (Related: "Easter Island Settled Later, Depleted Quicker Than Thought?")
For centuries, scientists have tried to solve the mystery of how the colossal stone statues of Easter Island moved. Now there's a new theory—and it rocks.
The multiton behemoths traveled up to 11 miles (18 kilometers) from the quarry where most of them were carved, without the benefit of wheels, cranes, or even large animals.
Scientists have tested many ideas in the past, figuring that the islanders must have used a combination of log rollers, ropes, and wooden sledges. Now a pair of archaeologists have come up with a new theory: Perhaps the statues, known as moai, were "engineered to move" upright in a rocking motion, using only manpower and rope.
Terry Hunt of the University of Hawaii and Carl Lipo of California State University Long Beach have worked closely with archaeologist Sergio Rapu, who's part of the South Pacific island's population of indigenous Rapanui, to develop their idea. They've observed that fat bellies allowed the statues to be tilted forward easily, and heavy, D-shaped bases could have allowed handlers to roll and rock the moai side to side.
Last year, in experiments funded by the National Geographic Society's Expeditions Council, Hunt and Lipo showed that as few as 18 people could, with three strong ropes and a bit of practice, easily and relatively quickly maneuver a ten-foot (three-meter), five-ton moai replica a few hundred yards (a few hundred meters). No logs were required. (National Geographic News is a division of the Society.
In previous efforts to solve the mystery, Czech engineer Pavel Pavel worked with Norwegian explorer-adventurer Thor Heyerdahl and a team of 17 helpers to propel an upright, 13-foot (4-meter), nine-ton moai forward with twisting motions, keeping the statue fully upright at all times. That was in 1986. But Pavel's team damaged the moai's base and had to stop. (Related: "Easter Island Settled Later, Depleted Quicker Than Thought?")
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