![]() ![]() With the stroke of a pen the Jesuit fathers banned the doctrine of infinitesimals, announcing that it could never be taught or even mentioned. On August 10, 1632, five men in flowing black robes convened in a somber Roman palazzo to pass judgment on a deceptively simple proposition: that a continuous line is composed of distinct and infinitely tiny parts. ![]() Pulsing with drama and excitement, Infinitesimal celebrates the spirit of discovery, innovation, and intellectual achievement-and it will forever change the way you look at a simple line. Because glass that glows is just pretty cool.About the Book Originally published in hardcover in 2014 by Scientific American/Farrar, Straus and Giroux. Which, for collectors and admirers, is good news. "There is, for all practical purposes, no risk. The radioactive exposures you get from flying in an airplane, or inhaling air in your home, which has radon in it, they're so much greater than any dose that anyone's going to get from uranium or Vaseline glass," Frame says. Still, Frame will admit, there may be some small, infinitesimal risk involved with uranium glass, even though uranium is nowhere close to being as radioactive as, say, radium, another uranium byproduct. The uranium itself is not all that radioactive." "So in uranium ore, you have this whole host of radioactive stuff, and the key player there is really radium. The material that made the residues most radioactive turned out to be radium, not the uranium," he says. "Marie Curie got these ore residues from the Czech Republic back in the day, and she extracted the uranium but discovered what was left behind was even more radioactive than the uranium itself. "īut is the radioactivity from uranium glass strong enough to, say, morph someone into a big, green, angry guy, or a part-kid, part-arachnoid? Or, even strong enough to kill? And it is more radioactive than the majority of things, in that you can detect the radioactivity of Vaseline, or uranium glass, with a handheld meter. "What we're dealing with, with Vaseline glass, is something that is radioactive - just like everything else. In addition, places like the Hawley Antique Exchange in Hawley, Pennsylvania, feature large collections of the glowing, sometimes eerie-looking glass. VGCI is a non-profit that has more than 6,000 followers on Facebook. Some collectors and aficionados of the stuff will gather in Pittsburgh in October 2021, for the 22nd annual Vaseline Glass Collector, Inc. Uranium glass - also known as Vaseline glass because of the Vaseline-type color that many glass pieces emit under certain lighting conditions (usually black light or ultraviolet light) - certainly has its die-hard fans. size, design, artistry, that kind of thing." And there are other people who just collect glassware the styles and so forth.īut there's so much of this damn stuff out there that, despite the fact that there's a variety of people that are interested in it, it really doesn't have a lot of value unless it's a particularly unique piece of glassware. "There are some people out there that are particularly interested in it because it's radioactive. "There are many different types of collectors that would be interested in this sort of item," Frame says of the glass. For years, Frame was also the curator at ORAU's Health Physics Historical Instrumentation Museum, also known as the Museum of Radiation and Radioactivity, which chronicles "the scientific and commercial history of radioactivity and radiation." The collection is located in Oak Ridge, Tennessee. It really looks kind of special," says Paul Frame, a retired health physicist at Tennessee's Oak Ridge Associated Universities, a consortium of schools founded after World War II as the Oak Ridge Institute of Nuclear Studies. "It is kind of attractive because it has that iridescent glow to it under certain lighting conditions. But it's more of a curio now than anything, found in the form of pitchers and bowls and other glassware in flea markets, dusty attics, museums and among glass collectors, all reminders that at one time it was something desirable. It goes by a few different names and is even still being produced in some quantities in Europe. Yes, the Romans used uranium in their glass, and modern versions of the stuff still exists. ![]()
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