Size may matter

  • Thread starter wolram
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  • #2
783
9
Very interesting. Never knew that they could get that small. WOW!
 
  • #3
1,134
9
Thats so tiny, it's cute!
 
  • #4
490
2
Well, it's not a rotational motor..and an expanding bubble is not much of a linear motor...force is limited by surface tension on the bubble. So yes, "it jiggles, a little bit"...but I have doubts about the usefulness.
 
  • #5
Borek
Mentor
28,441
2,835
Tiny is cute... Gotta remember this phrase.
 
  • #6
negitron
Science Advisor
842
1
Well, it's not a rotational motor..and an expanding bubble is not much of a linear motor...force is limited by surface tension on the bubble.
You know, if you'd bothered to actually read the article, you'd have seen that this was already addressed:

The technique exploits the fact that surface tension -- the tendency of atoms or molecules to resist separating -- becomes more important at small scales. Surface tension is the same thing that allows some insects to walk on water.
 
  • #7
2,985
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You know, if you'd bothered to actually read the article, you'd have seen that this was already addressed:
Expect people to read articles posted? Talk about wishful thinking.
 
  • #9
dlgoff
Science Advisor
Gold Member
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1,756
Check out these http://www.sciencentral.com/articles/view.php3?article_id=218392586" [Broken].

And here are some vids of http://www.ipt.arc.nasa.gov/gallery.html" [Broken].
 
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  • #10
378
2
Thread title is misleading.

I thought it would be about men penises and these two were the first posts I saw

Thats so tiny, it's cute!
Tiny is cute... Gotta remember this phrase.
and then
Do you have a biggest, smallest, longest, shortest..
:rofl:
 

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