So simple, and so brilliant.

Quote

"It is not an issue of dark placed on light, but of light replacing dark. The most obvious method for lightening linen is the one housewives have used to bleach tablecloths for centuries and, more likely, millennia. Put the cloth outside beneath the sun," he said.

And if someone had painted his window, he would have discovered this effect on his curtains... thus leading to the discovery of the method in the first place.

So simple.

Thanks, Simon. I'm incredibly glad to see it was you who posted this. Three cheers for your intellectual honesty... once again.

Anthony

You can lead a horse to water but you can't make him think.