Yesterday's Answer:
Red gold is created by adding copper to yellow gold.
Today's Question:
What's the scientific name for the longest bone in the human body.
This question refers to the femur. As far as I know that is the scientific name as I've never heard it referred to another way.
(Sources: American Mensa, email transmission, June 28, 2012; http://www.ehow.com/facts_5166105_red-gold-jewelry.html; www.redgoldrings.com)
Otto and Patricia Ladensack
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