句间停顿:
  • 1S
  • 3S
  • 5S
语速: x 1.0
  • 速度0.8X
  • 速度1.0X
  • 速度1.2X
  • 速度1.5X
  • 速度1.8X
  • 速度2X
始终显示原文
欢迎使用 KMF 精听精研
坚持练习精听,反复听、吃透每个句子,能够快速 提升听力能力
开始精听
或按 「 空格」开始播放

段落1

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This'll just take a minute.

点击显示原文

隐藏原文=

Think about the tools used by biologists.

点击显示原文

隐藏原文=

Perhaps test tubes and microscopes come to mind.

点击显示原文

隐藏原文=

But what about diapers?

点击显示原文

隐藏原文=

No, it's not that investigators are too engrossed in their work to take bathroom breaks.

点击显示原文

隐藏原文=

Turns out the absorbent material in disposable diapers can be used to physically expand biological specimens, and make them easier to see with a microscope.

点击显示原文

隐藏原文=

Researchers at MIT wanted to take a closer look at the connections that form between neurons in an intact brain, close enough so they could see the actual molecules those nerve cells use to interact.

点击显示原文

隐藏原文=

That level of detail is beyond the resolution of conventional light microscopes.

点击显示原文

隐藏原文=

But what if the structures of interest could somehow be made bigger?

点击显示原文

隐藏原文=

That's where the diapers come in.

点击显示原文

隐藏原文=

Researchers found that they could infuse their tissue samples with acrylate, the super-absorbent stuff in throwaway diapers.

点击显示原文

隐藏原文=

The chemical forms a molecular mesh to which the tissue can anchor.

点击显示原文

隐藏原文=

Then, when the researchers add water, the acrylate swells.

点击显示原文

隐藏原文=

And so does the sample, which makes minute structures more visible.

点击显示原文

隐藏原文=

The technique is described in the journal Science.

点击显示原文

隐藏原文=

The researchers have used the acrylate swelling or Huggies enhancement or even Pampers amplification, if you will to peer into the brains of mice, fruit flies and zebrafish.

点击显示原文

隐藏原文=

Now, whether this nifty nappie maneuver will expand our understanding of life¡¯s smallest cellular mysteries¡ well, Depends.

点击显示原文

隐藏原文=

Thanks for the minute, for Scientific American's 60-Second Science. I'm Karen Hopkin.

点击显示原文

隐藏原文=
[ < 空格 > ]
当前句 /
/
  • 段落1
  • 第 1 句
  • 第 2 句
  • 第 3 句
  • 第 4 句
  • 第 5 句
  • 第 6 句
  • 第 7 句
  • 第 8 句
  • 第 9 句
  • 第 10 句
  • 第 11 句
  • 第 12 句
  • 第 13 句
  • 第 14 句
  • 第 15 句
  • 第 16 句
  • 第 17 句
  • 第 18 句

+ 创建收藏夹
保存 取消