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What time is it?...Why it's half past Nitrogen, of course. Students and teachers alike will look forward to Lithium. Our 24-hour Chem Time Clock replaces the usual numbers found on the face of a clock with symbols of elements having corresponding atomic numbers. 'H' replaces '1', 'He' replaces '2', etc. From the mind of Prof. Bassam Shakhashiri at the University of Wisconsiin. It is the perfect addition to a science classroom, geeky office, or science savvy bedroom.
(Requires 1 AA Battery - not included.) 13 inch (32 cm) diameter. Attractive green border.