PickVidsYour toothbrush is worn-out!
推荐理由
You can find electron microscope scans of fresh toothbrushes and worn ones in this[0] Applied Science YouTube video.
说明
这是2015年由Applied Science发布的一部演示，主题归在Materials science。它讲的是toothbrush wear这一支里的具体问题，而不是把整个领域扫一遍。适合按兴趣直接看、不打算先补课的人。内容上可以概括成：Ben Krasnow of Applied Science uses a scanning electron microscope to compare new and worn toothbrush bristles. He shows how the microscopic texturing wears down with use.这些读者给出的理由，核心是：HN commenters link it for electron micrographs of fresh versus worn bristles when toothbrush wear comes up.讲法不绑某一条新闻，过几年仍然可以当材料看。从2023年到2025年，有1位不同的读者在1个不同月份把它推荐出来，其中明确叫别人去看的有0次。适合先看结果再决定要不要深挖的人。先看它做成了什么。如果已经会了基本定义，就把注意力放在它怎么把toothbrush wear变成能跟着复述的例子。
视频信息
- 频道
- Applied Science
- 时长
- 8 分 39 秒
- 发布年份
- 2015
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