November 30, 2001 marked the first-ever transmission of an image by laser link from one satellite to another. Terminals on the European Space Agency's (ESA) Artemis spacecraft, operating 19,270 miles above Earth, and the French space agency's (CNES) SPOT 4 satellite, orbiting at 517 miles altitude, exchanged high-definition imagery data at 50 megabits per second. Images from SPOT 4 via Artemis were subsequently transmitted to the SPOT Image control center in Toulouse, France. Effective cooperation between several operations control centers ensured success. These included the CNES SPOT 4 control center and the SPOT Image data reception/processing facility in Toulouse, the ESA-Artemis mission control facility in Redu, Belgium, and the Artemis operations control center in Fucino, Italy. The main advantage offered by the optical data relay system is enhanced availability. When operated with SPOT 4, the link can be maintained for more than 50% of the orbit. This increases contact time dramatically and shortens the time interval between when images are recorded and when they are available to the customer. System potential also extends beyond Earth observation, promising to revolutionize satellite-to-satellite communications for constellations in low-earth orbit, geo-stationary satellites, and deep-space exploration probes. Contact Bernard Cabrieres at CNES for more information. Tel: +33 5 61 27 42 47, or firstname.lastname@example.org.
The Beam Store from Suitable Technologies is managed by remote workers from places as diverse as New York and Sydney, Australia. Employees attend to store visitors through Beam Smart Presence Systems (SPSs) from the company. The systems combine mobility and video conferencing and allow people to communicate directly from a remote location via a screen as well as move around as if they are actually in the room.
An MIT research team has invented what they see as a solution to the need for biodegradable 3D-printable materials made from something besides petroleum-based sources: a water-based robotic additive extrusion method that makes objects from biodegradable hydrogel composites.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.