You won’t need an expensive machine for this, just an egg, some vinegar, and a bowl. Over the course of two days, you’ll gradually see the egg’s calcium carbonate shell dissolve. For those who’ve tried this before, does it work? Video after the jump. Vinegar is acetic acid, CH3COOH, which would dissolve the calium carbonate into calcium ions, and release carbon dioxide (that explains for the bubble at beginning of the clip)

You won’t need an expensive machine for this, just an egg, some vinegar, and a bowl. Over the course of two days, you’ll gradually see the egg’s calcium carbonate shell dissolve. For those who’ve tried this before, does it work? Video after the jump.