BotEC: Walking to the Center of the Earth
- Assuming that you can walk 10 miles in a day (and that you can stand the heat and pressure!), how many days would it take you to walk to the crust-mantle interface, if you started from the land surface? Round off to the nearest whole day. (Hint: 1 mile =1.6 km)
- How many more days would it take to get to the center of the earth?
- 3 days
- 396 days
References and Resources
This SERC page describes the use of Back of the Envelope Calculations
The Back of the Envelope : This page outlines one of the essays in the book "Programming Pearls" (ISBN 0-201-65788-0). The book is written for computer science faculty and students, but this portion speaks very well to back of the envelope calculations in general.