Laura Silver
More from Laura Silver
![Now You See It, Now You Don’t](https://www.popsci.com/wp-content/uploads/2019/03/18/A4BW7JYZSKTVODLXUUP7TRCTII.jpg?w=485)
Science
Now You See It, Now You Don’t Now You See It, Now You Don’t
By Laura Silver
January 16, 2009
![A Conversation with Len Fisher](https://www.popsci.com/wp-content/uploads/2019/03/18/OVU2Q26P6K6IR7Q3KKJ2RNR4HI.jpg?w=485)
Science
A Conversation with Len Fisher A Conversation with Len Fisher
By Laura Silver
January 7, 2009