OT/POT/NOT category for the "upside down world" Show this to your childrens or friends: Mix 1 part water with 2 parts starch The mixture looks liquid but you can't immerse your finger inside. Taking out the content with a spoon it's solid, droping down in the bowl it's liquid. The perfect experiment for physics class. Vasile -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist