Jumped into a droplet of water

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Discussion Overview

The discussion explores the hypothetical scenario of shrinking to the size of a flea and jumping into a droplet of water, specifically questioning how the experience would differ from that of a normal-sized person. It touches on concepts of viscosity, surface tension, and the physical properties of water compared to jelly.

Discussion Character

  • Exploratory
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant questions whether the experience of jumping into a droplet of water would feel the same as at normal size or more like jelly.
  • Another participant suggests considering the Reynolds numbers involved in the scenario.
  • A participant emphasizes that viscosity is a key property distinguishing water from jelly, asserting that the viscosity of water remains unchanged regardless of size.
  • It is proposed that while the viscosity of water does not change, the surface tension may affect the experience, suggesting that a smaller weight could allow for walking on water.
  • A participant references a short story related to the topic, indicating a cultural connection to the concept of surface tension.

Areas of Agreement / Disagreement

Participants express various viewpoints regarding the physical properties of water and jelly, with some agreeing on the role of viscosity while others raise questions about the implications of size and surface tension. The discussion remains unresolved with multiple competing views present.

Contextual Notes

Participants do not fully explore the implications of Reynolds numbers or the specific conditions under which the experience might change, leaving some assumptions unaddressed.

bozo the clown
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If i were able to shrink myself to the size of say a flea and I jumped into a droplet of water ( that is av rain drop size ) would the water feel the same as if it were my normal size or would it feel more like jelly ?
 
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Anyone can answer this ??
 
I've never been that small, couldn't tell you :biggrin:
 
Are thinking of typical values of the Reynolds numbers involved?
 
Just what flavor of jelly are we talkin about here?
 
bozo the clown said:
If i were able to shrink myself to the size of say a flea and I jumped into a droplet of water ( that is av rain drop size ) would the water feel the same as if it were my normal size or would it feel more like jelly ?

The physical property that distinguishes water from jelly is its viscosity. There are other differences too, but the viscosity largely covers the differences in intermolecular interactions.

Turning yourself into a flea has no effect on the viscosity of water...so it will not feel like jelly. However, its surface may. Now that your weight is much smaller, and your density is still just above 1 gm/cc, the surface tension will be within an order of magnitude of your weight (per unit length). So you'll most likely be able to walk on water. But if you get shoved under, it will likely still feel like...water !
 
Reminds me: There was a short story by James Blish called "Surface Tension". It was written in the 50s, but AFAIK is scientifically realistic.
 

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