Eureka Park showcases a wide range of inventions, from snowboard video game controls to VR exercise equipment and even a waterless toilet. The potential for investment is real.

Blood in the stool has multiple causes, like hemorrhoids and anal fissures. Learn about how it's diagnosed, treatment, when to see a doctor, and more.

The OGO-IV ultraviolet airglow spectrometer, which measures the earth's spectrum between 1100 and 3400 Å, consists of an Ebert-Fastie monochromator and two photomultipliers with wide-dynamic range ...