Company Doubles Missouri R&D Facility, Launches Heat Pump Testing, and Readies Fall Rollout of SOLIS™ & COR™ Mobile Nano-Grid ...

Researchers have cracked a fundamental optical challenge: how to control both angle and wavelength of light independently—a ...

Light and shade with chapters on charcoal, pencil, and brush drawing; a manual for teachers and students by Cross, Anson Kent, 1862- Publication date 1897 Topics Shades and shadows, Drawing Publisher ...