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An insect that has the only mechanical gears ever found in nature (2013)

101 点作者 cc9one大约 2 年前

7 条评论

ignoramous大约 2 年前
Reminds me of this pretty common but all the more spectacular: a close-up of super complex production line (gene transcription) driven by DNA strands: <a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=7Hk9jct2ozY">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=7Hk9jct2ozY</a> &#x2F; <a href="https:&#x2F;&#x2F;ghostarchive.org&#x2F;varchive&#x2F;7Hk9jct2ozY" rel="nofollow">https:&#x2F;&#x2F;ghostarchive.org&#x2F;varchive&#x2F;7Hk9jct2ozY</a>
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hcrisp大约 2 年前
I was just thinking about this. Does folding your hands count as a gear? The interlocked fingers make for a tighter grasp. When viewed from the palm side they even look like a gear. It is not the natural state of the hands but many gears also spend time in an unmeshed state. What is the definition of a gear anyway?
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unsupp0rted大约 2 年前
If we had never invented gears, but somehow had invented microscopes, we might&#x27;ve eventually stumbled on this insect and gotten the idea for mechanical gears from observing its legs.<p>What other things on the technology tree did we skip over and might we discover out in some insect, bird or fish?<p>We still don&#x27;t know how tiny insect brains are capable of using so little energy to do so much navigation and learning+memory, right?
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4878241143大约 2 年前
Cells. Interlinked.
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sva_大约 2 年前
The linked video is from 2013
jwilk大约 2 年前
Previously:<p>2013: <a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=6376191" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=6376191</a> (183 comments)<p>2014: <a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=8212984" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=8212984</a> (10 comments)
jacquesm大约 2 年前
Pure blogspam.<p><a href="https:&#x2F;&#x2F;www.smithsonianmag.com&#x2F;science-nature&#x2F;this-insect-has-the-only-mechanical-gears-ever-found-in-nature-6480908&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.smithsonianmag.com&#x2F;science-nature&#x2F;this-insect-ha...</a>
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