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Old 11-23-2005, 10:50 PM   #10 (permalink)
zima
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zima
Quote:
Originally Posted by Eirķkr Rauši
Well you're right, but you didn't have to prove yourself by posting a catalogue of your "useful posts".
It was best argument I could get, and having it required only 3 minutes of copying links from my profile summary...not much.
Quote:
But anyway, though these "interesting facts" may be informative to some people, I find them incomplete. Take this for example:
Quote:
Sound
Sound travels 15 times faster through steel than through the air.
Sound travels through steel 15 times faster than in air? Great. But still, what is the speed of sound in air? How can we realize how much of a difference that is without knowing the speed of propulsion of sound waves in the air? Again, temperature plays a big role in the speed, it may not always be 15 times faster. At a temperature of 273K(I'm using Kelvin scale because I can't be bothered copy-pasting the degree symbol for Celsius and Fahrenheit scales), it moves at 350 metres/sec through the air.
Even worse, I wouldn't be surprised if some number of people wouldn't know what the sound actually, preciselly, is. Knowing that for sure would mean they wouldn't marvell at speed increase...
Of course the same applies to how CD, computer, email, nuclear reactor, radio, microwaves, TVs, transistors and so on really work...
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