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Appearance and effects
Like many of Calvin's inventions, it was made from a cardboard box, but with a colander connected to three wires. The wires served as input and output wires, and the third was a grounding string, which Calvin called "a lightning rod for brainstorms", so as to keep one's ideas grounded in reality. The colander served as a thinking cap to enhance Calvin's brain. As a side effect, Calvin's head swelled. The effects of this were temporary, however.
- The Cerebral Enhance-O-Tron is one of two inventions with temporary effects. The other was the Transmogrifier Gun. The gun wears off in 12 hours. This device wears off in about 3 hours.