Browsing: Illusions

Earlier today I posted five optical illusions by Olivier Redon, a French-American inventor. Here they are again – with demonstrations of how he created the effects.Three…

It’s always amazing, and more than a little humbling, when the universe reminds us that our “common sense” is provincial, falling apart on cosmic scales.If you’re…

Want to stay current with Arthur’s writing? Sign up to get an email every time a new column comes out.Several years ago, I did some lecturing…