73-Year-Old Clifford Stoll Is Now Selling Klein Bottles
O’Reilly’s “Tech Trends” newsletter included an interesting item this month:

Want your own Klein Bottle? Made by Cliff Stoll, author of the cybersecurity classic The Cuckoo’s Egg, who will autograph your bottle for you (and may include other surprises).

First described in 1882 by the mathematician Felix Klein, a Klein bottle (like a Mobius strip) has a one-side … ⌘ Read more