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iPod nano (sixth-generation) and iPod touch (fourth-generation) 2010 Unboxing + Comparisons
iPod nano 6G, iPod touch 4G, iPod nano, iPod touch, iLounge.com, iLounge
 
Nano Flowers 7, false-colored and imaged with ZEISS SEM
The researchers dissolved barium chloride and sodium silicate into a beaker of water. Carbon dioxide from air naturally dissolves in the water, setting off a reaction which precipitates barium carbonate crystals. As a byproduct, it also lowers the pH of the solution immediately surrounding the crystals, which then triggers a reaction with the dissolved waterglass.
 
 
 
 
 
 
 
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