Autonomous ‘soaring with solar’ concept

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Holding the photovoltaic (PV) UAV based on the SBXC sailplane, are members of the ‘Solar-Soaring’ research flight crew (l-r) Dan Edwards and Trent Young (not shown: Chris Bovais, Sam Carter, Matthew Kelly, and Dave Scheiman). Credit: US Naval Research Laboratory Researchers at the U.S. Naval Research Laboratory (NRL), Vehicle Research Section and Photovoltaic Section are […]

Basic Lighting Knowledge

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1) Lumen (lm) Lumen is the international(SI) unit of luminous flux, a measure of overall light emitted by a light source. 2) Candela (cd) Candela is the international(SI) unit of luminuous intensity, a measure of light emitted by a light souce in a particular direction. Any given light source will have different luminous intensities in […]