A PHOTO

Submitted by Jerome Williams

A PHOTO

Submitted by Felipe Ruiz Mazin

A PHOTO

Submitted by anonymous.

A VIDEO

Two related image submissions by Philipe Maciel and anonymous

A PHOTO

Time to start reusing pictures. Keep those submissions coming!

A PHOTO

Submitted by Tim Hyde

A VIDEO

Some math facts today. Thanks to R. Warren Anderson and Craig Benedict.

A PHOTO

submitted by Rhys Bidder and Jennifer La’O