25 miles northwest of Phantom Mines, Nevada. California will celebrate its sesquicentennial anniversary as a state in the year 2000. 6850 Edwin A. Abbott wrote Flatland in 1884. About 60 years later, Dionys Burger wrote a sequel. Here's how one puzzle went.
Comments are welcome.
He is the author of The Mathematical Tourist , Islands of Truth , Newton's Clock , Fatal Defect , and The Jungles of Randomness . For children ages 10 and up. All rights reserved. Subscribe to Science News . Copyright Clearance Center Browse a Science News photo collection.