DARPA’s COUGAR hollow core optical fibers transmit light at 99.7 percent its speed in air, according to the agency. Credit: DARPA. Optical fibers typically consist of a transparent core surrounded…
Read MoreI just got back from the 49th Annual Symposium on Refractories that was held Wednesday and Thursday at the combined St. Louis Section and Refractory Ceramics Division meeting. The theme…
Read MoreA solution of cadmium-selenide quantum dots glows orange under ultraviolet light. This luminescence forms the basis for their use in bioimaging. The effect of these quantum dots on primates is…
Read More