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SSS 2011-03-24

时间:2011-04-27 05:40来源:互联网 提供网友:geologyforget   字体: [ ]
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    (单词翻译:双击或拖选)

This is Scientific American’s 60-Second Science. I’m Cynthia Graber. This will just take a minute.

We see it all the time on shows like Bones and CSI: skeletal remains1 can yield all sorts of clues—gender, age, past physical traumas2, but not the person’s weight. Now, scientists say that skeletons may be able to reveal whether the person had some extra padding.

The scientists evaluated the femurs (or thigh3 bones) of 121 deceased men for whom they had both weight and height. The group was split into two weight categories based on BMI, body mass index. The researchers found that the femurs of the individuals in the heavier group had significantly wider shafts4. The study was published in the Journal of Forensic5 Sciences.

The scientists say that previous studies showed that obese6 individuals actually walk differently than those of average weight. So their bones are dealing7 with an increase in weight load and a difference in the biomechanics of movement. This brings on a physiological8 change to withstand the stress. Skeletons will never be able to give us an exact read on someone’s girth, but they may be able to give investigators9 more evidence…to weigh.

Thanks for the minute. For Scientific American’s 60-Second Science, I’m Cynthia Graber.


点击收听单词发音收听单词发音  

1 remains 1kMzTy     
n.剩余物,残留物;遗体,遗迹
参考例句:
  • He ate the remains of food hungrily.他狼吞虎咽地吃剩余的食物。
  • The remains of the meal were fed to the dog.残羹剩饭喂狗了。
2 traumas 7da1e4c0a8ca7c0043a49c2bf2de8868     
n.心灵创伤( trauma的名词复数 );损伤;痛苦经历;挫折
参考例句:
  • She felt exhausted after the traumas of recent weeks. 她经受了最近几个星期的痛苦之后感到精疲力竭。
  • Conclusion: Safety lens of spectacles can protect the occurrence of ocular traumas. 结论:安全镜片可以预防眼镜碎片所致的眼外伤。 来自互联网
3 thigh RItzO     
n.大腿;股骨
参考例句:
  • He is suffering from a strained thigh muscle.他的大腿肌肉拉伤了,疼得很。
  • The thigh bone is connected to the hip bone.股骨连着髋骨。
4 shafts 8a8cb796b94a20edda1c592a21399c6b     
n.轴( shaft的名词复数 );(箭、高尔夫球棒等的)杆;通风井;一阵(疼痛、害怕等)
参考例句:
  • He deliberately jerked the shafts to rock him a bit. 他故意的上下颠动车把,摇这个老猴子几下。 来自汉英文学 - 骆驼祥子
  • Shafts were sunk, with tunnels dug laterally. 竖井已经打下,并且挖有横向矿道。 来自辞典例句
5 forensic 96zyv     
adj.法庭的,雄辩的
参考例句:
  • The report included his interpretation of the forensic evidence.该报告包括他对法庭证据的诠释。
  • The judge concluded the proceeding on 10:30 Am after one hour of forensic debate.经过近一个小时的法庭辩论后,法官于10时30分宣布休庭。
6 obese uvIya     
adj.过度肥胖的,肥大的
参考例句:
  • The old man is really obese,it can't be healthy.那位老人确实过于肥胖了,不能算是健康。
  • Being obese and lazy is dangerous to health.又胖又懒危害健康。
7 dealing NvjzWP     
n.经商方法,待人态度
参考例句:
  • This store has an excellent reputation for fair dealing.该商店因买卖公道而享有极高的声誉。
  • His fair dealing earned our confidence.他的诚实的行为获得我们的信任。
8 physiological aAvyK     
adj.生理学的,生理学上的
参考例句:
  • He bought a physiological book.他买了一本生理学方面的书。
  • Every individual has a physiological requirement for each nutrient.每个人对每种营养成分都有一种生理上的需要。
9 investigators e970f9140785518a87fc81641b7c89f7     
n.调查者,审查者( investigator的名词复数 )
参考例句:
  • This memo could be the smoking gun that investigators have been looking for. 这份备忘录可能是调查人员一直在寻找的证据。
  • The team consisted of six investigators and two secretaries. 这个团队由六个调查人员和两个秘书组成。 来自《简明英汉词典》
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