This is one of my favorite stories. In short, one of John Burk's (@occam98) students wanted to launch a space balloon. If you want all the details, this post at Quantum Progress pretty much says it ...

You know I like to use pictures for data from time to time, right? One problem is that I don't know much about cameras. There, I said it. Really, almost all of my photos are made with my phone. That ...

Two objects that project the same visual angle on the retina can appear to occupy very different proportions of the visual field if they are perceived to be at different distances. What happens to the ...