搜索关注在线英语听力室公众号:tingroom,领取免费英语资料大礼包。
(单词翻译)
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.
1 remains | |
n.剩余物,残留物;遗体,遗迹 | |
参考例句: |
|
|
2 traumas | |
n.心灵创伤( trauma的名词复数 );损伤;痛苦经历;挫折 | |
参考例句: |
|
|
3 thigh | |
n.大腿;股骨 | |
参考例句: |
|
|
4 shafts | |
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: |
|
|
5 forensic | |
adj.法庭的,雄辩的 | |
参考例句: |
|
|
6 obese | |
adj.过度肥胖的,肥大的 | |
参考例句: |
|
|
7 dealing | |
n.经商方法,待人态度 | |
参考例句: |
|
|
8 physiological | |
adj.生理学的,生理学上的 | |
参考例句: |
|
|
9 investigators | |
n.调查者,审查者( investigator的名词复数 ) | |
参考例句: |
|
|
本文本内容来源于互联网抓取和网友提交,仅供参考,部分栏目没有内容,如果您有更合适的内容,欢迎 点击提交 分享给大家。