TRIVIA TODAY - Wednesday, July 31, 2013

Greetings Infomaniacs,

Have you ever wondered why bubbles look rainbow colored? Why they are round? Or why they burst? I wondered all of these things while blowing bubbles with my goddaughter this weekend, so I thought I'd look up some facts about bubbles to answer these very important questions!

Enjoy!
Melissa

Questions? Comments? Email Melissa

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TODAY'S MYSTERY QUOTE
QUOTE: "Science may set limits to knowledge, but should not set limits to imagination."

HINT: (1872-1970), British philosopher, logician, mathematician, historian, and social critic.


RANDOM TIDBITS
In the vacuum of space, a bubble wouldn't be able to form due to the lack of exterior air pressure to counteract the pressure from within.

Bubbles get their color due to a phenomenon known as iridescence. As waves of light pass through the bubble, it gets distorted by reflecting off different layers of soap film.

A bubble's shell is composed of a layer of water molecules surrounded by two thin layers of soap. Technically, a bubble will freeze below 32 degrees Fahrenheit like all water. The only problem is that bubbles tend to burst after a few seconds, so in order to see a bubble freeze, the temperature needs to fall to a temperature that will freeze water molecules more quickly.

Bubbles aren't usually thought of as weapons, but that is exactly how the snapping shrimp uses them. They create a cavitation bubble that immediately collapses creating a shock wave that, for a moment, is nearly as hot as the sun.

The liquid shell of a bubble is always pulling inward due to the phenomenon known as surface tension. The water molecules try to minimize the surface area of the bubble. A sphere is the shape with the least amount of surface area while containing volume.

Anything that fractures the tenuous layer of water molecules can cause a bubble to burst. For example, a gust of wind or an object (like your finger) will easily cause a bubble to burst.

(www.trivials.com)


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TODAY'S MYSTERY QUOTE
QUOTE: "Science may set limits to knowledge, but should not set limits to imagination."

ANSWER: Bertrand Russell.

***
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