Video 19 Time and Scale
Some of you might want to present what happens over time with your photographs. Other than creating a video, it's usually quite compelling when watching a dynamic phenomena that's true. And if you think about it, all of science is ultimately dynamic, right? Things change over time. We generally assume one has to watch a moving image to see that change. So here, for example, you are seeing something called the Belousov-Zhabotinsky reaction. It's a complicated oscillating reaction that we're observing within a Petri dish. But it's not a video, in the sense that it wasn't taken with a video camera. You're seeing a series of still images that I made and I was privileged to make in professor Zhabotinsky's lab at Brandeis. I took the images 11 seconds apart over a period of five minutes. By the way, I made the images in film, which became slide formats, as you might remember-- or then again, maybe you don't! And you're seeing digital scan...