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Strategies & Market Trends : 2026 TeoTwawKi ... 2032 Darkest Interregnum -- Ignore unavailable to you. Want to Upgrade?


To: TobagoJack who wrote (125348)11/28/2016 2:14:47 AM
From: Maurice Winn1 Recommendation

Recommended By
charlyfi

  Read Replies (1) | Respond to of 217680
 
That's excellent that Erita has observed that steel boats and even steel reinforced concrete boats, [a fashion for a while in NZ] can float. As can gold.

Unlike pretty much everything else, gold can be hammered down to extraordinarily thin until it's just a few atoms thick, which does mean surface tension in water could hold it up. But wine with bubbles is not water. 15% ethanol is a pretty good surfactant and Erita might not have observed the high surface tension of pure water decreases as the concentration of surfactant increases.

I do recall seeing gold on the bottom of one of your glasses so if thin enough, the rising bubbles would keep it suspended until the bubbles ran out of steam. The floaters have got enough surface tension, like mosquitoes standing on water, that they have not broken through. But put a drop of surfactant into water and watch the mosquitoes fail to act like Jesus, who used magic, not surface tension, to do his walking on water.

Gold made super thin is cheap enough for a large surface area that the extravagant wine would not cost much to enhance with flakes of such thin gold.

But it still looks dopey, if not soapy.

"of course gold, steel and even cement can float on water. "Even"? Concrete is much less dense than gold so it's buoyancy is greater, which is why gold is found UNDER rocky sediment.

Mqurice



To: TobagoJack who wrote (125348)11/28/2016 2:15:58 AM
From: Maurice Winn  Respond to of 217680
 
That's excellent that Erita has observed that steel boats and even steel reinforced concrete boats, [a fashion for a while in NZ] can float. As can gold.

Unlike pretty much everything else, gold can be hammered down to extraordinarily thin until it's just a few atoms thick, which does mean surface tension in water could hold it up. But wine with bubbles is not water. 13% ethanol is a pretty good surfactant and Erita might not have observed that the high surface tension of pure water decreases as the concentration of surfactant increases.

I do recall seeing gold on the bottom of one of your glasses so if thin enough, the rising bubbles would keep it suspended until the bubbles ran out of steam. The floaters have got enough surface tension, like mosquitoes standing on water, that they have not broken through. But put a drop of surfactant into water and watch the mosquitoes fail to act like Jesus, who used magic, not surface tension, to do his walking on water.

Gold made super thin is cheap enough for a large surface area that the extravagant wine would not cost much to enhance with flakes of such thin gold.

But it still looks dopey, if not soapy.

"of course gold, steel and even cement can float on water. "Even"? Concrete is much less dense than gold so it's buoyancy is greater, which is why gold is found UNDER rocky sediment.

Mqurice on how to suck eggs.