The Floating Water Bridge, a demonstration by Dr. Elmar C. Fuchs. Two beakers are filled with triply deionized water. Electrodes are added to each, exposing the water to high d.c. voltage. A cylindrical water bridge forms between them that is stable enough to sustain itself across a few centimeters. Watch the water as the beakers are slowly separated. From FYeah Fluid Dynamics:
Gravity tends to make the water bridge sag and capillary action tries to thin the bridge, but both effects are countered by the polarization forces induced in the water by the electric field.
I was also intrigued by a crater shown at the 1:50 mark, which looks like it got filled by a landslide off a nearby hill. Mars isn’t what you might call geologically active, but it does commonly suffer landslides and avalanches when the frozen carbon dioxide ice under the surface sublimates (turns directly from a solid into a gas), which can dislodge material. If that happens at the top of a hill or cliff, material can cascade down dramatically. I strongly suspect that’s what we’re seeing in this video.
This DIY conversion stand is more than capable of functioning in an actual laboratory setting. With magnification levels as high as 175x, plant cells and their nuclei are easily observed! In addition to allowing the observation of cells, this setup also produces stunning macro photography.
"Physics told me some crazy stuff. Say, I’m not just sitting here doing nothing. I’m actually fighting against Earth’s gravity. And I’m not sitting still. I’m spinning at a thousand miles per hour, or even more than that… 67 thousand miles per hour, if you count the rotation of the Earth around the Sun…"