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Article: Weekly problem. (arithmetic problems are posed based on the drilling to the center of the earth by a company that can drill 12 km each day: includes follow-up questions about the make-believe drilling project)
- Article from:
- Science Weekly
- Article date:
- February 5, 1997
CopyrightCOPYRIGHT 1997 Science Weekly, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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The year is 2257. You are the head foreman for the Magma Drilling Company. Your equipment can drill 12 km per day. Your assignment: DRILL TO THE CENTER OF THE EARTH!
1. How many days will it take to drill through the crust?--days
2. How many days to go through the mantle?--days
3. How many days to go through both the inner and outer cores?--days
4. How many days in all will it take to go through all of these layers and reach the center of the ...