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Quantum CyberTeaser: January/February 1996

B163 Shady matters. Everyone knows that a shadow cast by the Sun changes during the day—it’s longest at sunrise and sunset and shortest at noon. Is there a place on Earth where a shadow stays the same length all day long? Solution

The winners:

• Roger Khazan (Waltham, Massachusetts)
• Ophir Yoktan (Jerusalem, Israel)
• Joe Pascoe (Tonawanda, New York)
• Oleg Shpyrko (Rochester, New York)
• Byron Peterson (Regina, Saskatchewan)
• Brian Platt (Woods Cross, Utah)
• Sterling Marshall (St. Louis, Missouri)
• Matthew Padilla (Lombard, Illinois)
• David Craig (Clemson, South Carolina)
• Sheena Delgado (Lansing, Michigan)

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