Dinosaurs may be lighter than previous thought: study
LONDON, June 6 (www.tingvoa.com) -- Dinosaurs 2 may not be as heavy as previously 3 thought, according a study published Wednesday by British scientists who have developed a new technique to accurately 4 measure the weight and size of dinosaurs.
Writing in the journal Biology Letters, scientists at the University of Manchester described a method whereby lasers are used to measure the minimum amount of skin required to wrap around the skeletons of modern-day mammals, including reindeer 5, polar bears, giraffes and elephants.
They discovered that the animals had almost exactly 21 percent more body mass than the minimum skeletal skin and bone warp 6 volume, and applied 7 this to a giant dinosaur 1 skeleton in Berlin's Museum fur Naturkunde.
Previous estimates of its weight have varied 8, with estimates as high as 80 tons. But the new study reduced that figure to just 23 tons. The team says the new technique will apply to weight measures for all species of dinosaurs.
We tested this method on 14 large-bodied mammalian skeletons and demonstrated that it consistently underestimated body mass by 21 percent, said lead author Dr Bill Sellers from the University of Manchester.
Our method provides a much more accurate measure and shows dinosaurs, while still huge, are not as big as previously thought, he added.
- Are you trying to tell me that David was attacked by a dinosaur?你是想要告诉我大卫被一支恐龙所攻击？
- He stared at the faithful miniature of the dinosaur.他凝视著精确的恐龙缩小模型。
- The brontosaurus was one of the largest of all dinosaurs. 雷龙是所有恐龙中最大的一种。 来自《简明英汉词典》
- Dinosaurs have been extinct for millions of years. 恐龙绝种已有几百万年了。 来自《简明英汉词典》
- The bicycle tyre blew out at a previously damaged point.自行车胎在以前损坏过的地方又爆开了。
- Let me digress for a moment and explain what had happened previously.让我岔开一会儿，解释原先发生了什么。
- It is hard to hit the ball accurately.准确地击中球很难。
- Now scientists can forecast the weather accurately.现在科学家们能准确地预报天气。
- The herd of reindeer was being trailed by a pack of wolves.那群驯鹿被一只狼群寻踪追赶上来。
- The life of the Reindeer men was a frontier life.驯鹿时代人的生活是一种边区生活。
- The damp wood began to warp.这块潮湿的木材有些翘曲了。
- A steel girder may warp in a fire.钢梁遇火会变弯。
- She plans to take a course in applied linguistics.她打算学习应用语言学课程。
- This cream is best applied to the face at night.这种乳霜最好晚上擦脸用。