-
The Impossible Problem
In 1969, Hans Freudenthal posed a puzzle that Martin Gardner would later call “The Impossible Problem”. Below is a 2000 version due to Erich Friedman. I have secretly chosen two nonzero digits and have separately told their sum to Sam and their product to Pam, both of whom are honest and logical. Pam says, “I…
Month: February 2018
Recent Comments
Nice post, John! Thanks for writing these. I always enjoy them.
David Smith’s ein stein is an awesome shape!
Recent Posts
- Sabbatical trip to Europe – Part 3 (Otto Rössler)
- Sabbatical trip to Europe – Part 2 (Switzerland)
- Sabbatical trip to Europe – Part 1 (Lviv, Ukraine)
- The Longest Flight
- Where Are the Stars?
Categories
- Adventure (23)
- Architecture (6)
- Astronomy (25)
- Exploration (2)
- Fun (9)
- Mathematics (23)
- Miscellaneous (4)
- Outreach (5)
- Physics (117)
- Space Exploration (47)
- Students (45)
- Travel (34)
- Uncategorized (16)
- Wooster (35)
Thanks, Mark! I enjoy reading your posts as well.