HydroSpan 100, from Houston-based Industrial Polymers Corporation, is billed as “a 3 dimensional copy machine enlarging any shape or design in near perfect proportion and detail.” Shown uppermost, a Morgan silver dollar from 1896, enlarged via three generations of HydroSpan 100 casting to about the size of a salad plate. To use it, two components […]
If you’ve got a shop, you’ve probably got some source of vacuum around, even if it’s only a residential vacuum cleaner for tidying up the floors. And in a pinch, a home or shop vacuum cleaner will do for light duty vacuum applications like running a small vacuum former. If you’re doing chemistry, however, and […]
Reportedly, fully 20 percent—some 200 million—of the world’s mobile devices incorporate a clear cover made of Corning’s Gorilla Glass brand toughened aluminosilicate glass. Depending on the particular test used to make the determination, Gorilla Glass is seven or eight times stronger than the common soda-lime glasses used, for instance, in most windowpanes.
Shape-memory metals get a fair amount of attention, but shape memory polymers exist, too. In fact, heat-shrink tubing is a familiar example of a simple shape-memory effect in a polymer. This video uploaded by MIT researcher Vikas Srivastava back in 2009 is a more impressive demonstration of heat-induced shape recovery. The plastic material is tBA […]
Those of you, um, enthusiastic enough to remember Star Trek IV may recall the scene embedded here. If not, let me set up the clip: The crew of the Enterprise has gone into the past to retrieve some whales, OK? And take them “back to the future,” to coin a phrase. But Scotty has a […]
By Super Awesome Sylvia and her dad, James Are you curious about experimenting with electronics, but the fear of electric shock or soldering iron burns keep you away? Why not try squishy circuits! With a special recipe of food-safe, kitchen-made, pliable dough developed at the University of St. Thomas, kids of all ages can easily […]
On Friday, I wrote about the development of amorphous or “glassy” metal alloys, in which the atoms are packed together with no regular crystal structure. At the microscopic level, almost all metals are made of crystal grains, which can be bigger or smaller depending on how the metal has been heat treated. Amorphous alloys, recall, […]
