a few minutes ago
It's great to see someone build a working physical model of something that we could previously only test through computer simulations," Cobley said.
It's still not 100 percent certain the ancient animal could actually break the sound barrier, "but it definitely shows that they could use their tails as a defense," Cobley said. "If their tails could even reach a fraction of the speed needed to make a sonic boom, it would make for a very effective weapon against any attacker." Kenneth Lacovara, a professor of paleontology at Rowan University in New Jersey, said the model tail may not "contain all the complexities of nature, but I think it's a good approximation." He also had some advice for the model. The tripod operators moved the model in a way that mimicked a dinosaur waggling its butt, but in reality, the dinosaur would have largely relied on two major sets of muscles to move its tail, Lacovara said.
Myhrvold has no problem listening to these recommendations. "Every little boy is interested in dinosaurs, and I just never lost that," Myhrvold said.
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