Polymer absorbs water and expands. It keeps almost the same refractive properties as water and appears invisible.The polymer is Sodium Polyacrylate (thank you, thecraftychemist!)
this is pretty neat :)
Did you know that your skin is considered an organ? Or that every 28 days the skin renews itself? These fact and more can be found on the 50 Incredible Facts About Skin infographic brought to you by Beautyflash. You can learn general facts about the skin as well as what you need to keep healthy skin.
Pretty cool, but let me say that my microbiology professor would not be amused to see a Staphylococcus aureus drawn that way ; )
Hemp is a Sensible, Sustainable, Highly-Industrializable Plant
We should utilize it. Hemp could solve many problems.
END PROHIBITION. It is NOT just about smoking.