Caltech posted video of a stable plasma torus, created by engineers using water and a dielectric plate: "lightning in a bottle, but without the bottle."
In addition, engineers working with the plasma noticed that their cell phones encountered high levels of radio frequency noise—static—while they were in the same room as the experiment. It turns out that the plasma ring emits distinct radio frequencies. "That's never been seen before. We think it's because of the piezo properties of the materials that we used in our experiments," Pereira says, referring to the materials' ability to be electrically polarized through mechanical stress—in this case, the flowing of water.
They've got no idea what it might be useful for, but have already filed a patent on the method for genereating the torus. Commercial proposal: a pretty random number generator to replace the lava lamps in Cloudflare's HQ.
Warming Stripes: (cache) average annual temperatures in England, with each year depicted as a vertical line, from left to right, covering 1772-2017. At the link, see the U.S. and Toronto.
Here’s an interesting experiment: Using mouse-movement as a lie-detection technique. Cognitive psychologists and neuroscientists have long noted a big “tell” in human behavior: Crafting a lie takes more mental work than telling the truth. So one way to spot lies is to check someone’s reaction time. If they’re telling a lie, they’ll respond fractionally more […]
For €105, the delightful and enchanting silver Neuron Necklace is yours. Its just one of a number of clever items offered by science-inspired jewelry, which include brains, fetuses, spines and thyroid hormones. [Thanks, Heather!]
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