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Formation of lead(II) iodide in petri dish Formation of lead(II) iodide from a soluble iodide and a soluble lead(II) salt is a nice demonstration experiment.
I love this story!! I only wish it was updated more often by Jun 21
Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2012 March 12 The Scale of the Universe - Interactive Flash Animation Credit & Copyright: Cary & Michael Huang Explanation: What does the universe look like on small scales?