Hacker Newsnew | comments | show | ask | jobs | submitlogin

It does. Thanks to you and the other excellent replies, I now finally understand how ink works. Apparently it's a filter, and we see the light after it has been twice filtered by the ink, down through the ink into the paper and reflected from the paper back up through the ink to our eyes. In contrast to paint or polish, which reflects from its surface.

Applications are open for YC Summer 2015

Guidelines | FAQ | Support | Lists | Bookmarklet | DMCA | Y Combinator | Apply | Contact