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» The Geek Culture Forums   » Techno-Talking   » Science!   » Slow Science - the curious tale of the Pitch Drop experiment.

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Author Topic: Slow Science - the curious tale of the Pitch Drop experiment.
The Famous Druid

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Icon 1 posted April 22, 2013 20:38      Profile for The Famous Druid     Send New Private Message       Edit/Delete Post   Reply With Quote 
Will YOU be the first to see it happen?

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If you watch 'The History Of NASA' backwards, it's about a space agency that has no manned spaceflight capability, then does low-orbit flights, then lands on the Moon.

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TheMoMan
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Icon 1 posted April 23, 2013 11:18      Profile for TheMoMan         Edit/Delete Post   Reply With Quote 
So Pitch is thicker than Bunker "C" a form of boiler fuel Just above "R" Oil. Those are very hard to move without heat.

More Science, Glass being a super cooled liquid slowly flows within its skin making the bottom of a pane thicker than the top when mounted vertically. May take many years.

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Those who would give up essential liberty to purchase a little temporary safety deserve neither liberty nor safety.


Benjamin Franklin,

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littlefish
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Icon 1 posted April 23, 2013 16:15      Profile for littlefish   Author's Homepage     Send New Private Message       Edit/Delete Post   Reply With Quote 
Actually MoMan, that glass thing is a common myth.

Scientific American

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GrumpySteen

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Icon 1 posted April 23, 2013 19:52      Profile for GrumpySteen     Send New Private Message       Edit/Delete Post   Reply With Quote 
To add to littlefish's reply, here's a brief history of how we went from uneven to uniformly even glass panes. Basically most glass before the 60s wasn't very uniform because it was too labor-intensive and expensive.

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TheMoMan
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Icon 1 posted April 23, 2013 20:30      Profile for TheMoMan         Edit/Delete Post   Reply With Quote 
After reading littlefish's reply, I did some research, and after reading many abstracts, Glass is an amorphous solid. When I worked with glass, replacing window panes, most glass was made using the float method, and was fairly uniform in thickness. I know that some of the old windows I worked on were not that uniform, so it was easy to wrap my head around the idea that glass was a supper cooled liquid.

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Those who would give up essential liberty to purchase a little temporary safety deserve neither liberty nor safety.


Benjamin Franklin,

Posts: 5836 | From: Just South of the Huron National Forest, in the water shed of the Rifle River | Registered: Sep 2002  |  IP: Logged


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