Science Nation - Follow the Water

submitted by: nsf
Already parts of the world suffer from lack of water, and with increasing demand it's expected to get worse. To better understand and predict drought, 30 universities are collaborating in a multi-disciplinary effort called the Shale Hills Project. Among the studies, is field research following the life cycle of water along the Susquehanna River Basin, the main tributary to the Chesapeake Bay. With support from the National Science Foundation, civil engineer Chris Duffy and his team at Penn...

3D Modulated Optical Crystals as Computer-Generated Volume Holograms

submitted by: icamvid

Rafael Piestun gives a talk at LC2CAM conference about 3-D light-fields and optical functions, the 3-D optical elements of space, frequency, and polarization, and experimental methods and application.

Relative Primitives

submitted by: SirZerp
This video was made to test out a relativistic version of Direct Coulomb Summation and is intended to be displaying fields of different moving charge configurations. Coulomb’s Law is well defined and also that inverse square fields propagate at the speed of light is well known. Hence why not put both into the same equation. In general, the video uses Coulomb's law to compute an observational cube of data. The dataset is then sent to a ray tracer which produces the images in the...

Alzheimer's Disease

submitted by: alex01
Z. Khachaturian, PhD. - New approaches to the therapy of Alzheimer’s disease (AD) are discussed in video interviews of this series. According to Z. Khachaturian (Potomac, MD) substantial progress has been made during the last 10 years in our understanding of pathogenesis of Alzheimer’s disease as well as in the discovery of biomarkers and therapeutic approaches. In addition to cholinergic drugs, inhibitors of plaque formation have been discovered, but the currently available...