Space station supplies launched, 2nd shipment in 2 days

A Northrop Grumman Antares rocket is seen as arrives at Pad-0A, Monday, Nov. 12, 2018, at NASA’s Wallops Flight Facility in Virginia. (Joel Kowsky/NASA via AP)
Updated 17 November 2018
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Space station supplies launched, 2nd shipment in 2 days

  • The International Space Station has received two deliveries in as many days
  • Tuesday marks the 20th anniversary of the space station being in orbit

CAPE CANAVERAL: A load of space station supplies rocketed into orbit from Virginia on Saturday, the second shipment in two days.
Northrop Grumman launched its Antares rocket from Wallops Island before dawn, delighting chilly early-bird observers along the Atlantic coast. The Russian Space Agency launched its own load of supplies to the International Space Station on Friday, just 15 hours earlier.
The US delivery will arrive at the orbiting lab Monday, a day after the Russian shipment. Among the 7,400 pounds (3,350 kilograms) of goods inside the Cygnus capsule: ice cream and fresh fruit for the three space station residents, and a 3D printer that recycles old plastic into new parts.
Thanksgiving turkey dinners — rehydratable, of course — are already aboard the 250-mile-high outpost. The space station is currently home to an American, German and Russian.
There’s another big event coming up, up there: The space station marks its 20th year in orbit on Tuesday. The first section launched on Nov. 20, 1998, from Kazakhstan.
This Cygnus, or Swan, is named the S.S. John Young to honor the legendary astronaut who walked on the moon and commanded the first space shuttle flight. He died in January.
It is the first commercial cargo ship to bear Northrop Grumman’s name. Northrop Grumman acquired Orbital ATK in June. SpaceX is NASA’s other commercial shipper for the space station.
Experiments also are going up to observe how cement solidifies in weightlessness, among other things. There’s also medical, spacesuit and other equipment to replace items that never made it to orbit last month because of a Russian rocket failure; the two men who were riding the rocket survived their emergency landing. Three other astronauts are set to launch from Kazakhstan on Dec. 3.


Saudi students invent robot to improve solar panel efficiency

The technology addresses the problem of decreased efficiency in the production of electricity by photovoltaic solar panels caused by harsh environmental conditions. (Photo/Social media)
Updated 20 April 2019
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Saudi students invent robot to improve solar panel efficiency

  • The device boosts productivity from 70% to 80%

TAIF: Two students at Taif University in Saudi Arabia have invented a robot that improves the efficiency of solar panels by more than 14 percent by keeping them clean and dust free.
The technology developed by Ahmed Fayez Ahmed Mohammed and Ahmed Ali Zayed Oudha, who are studying electrical engineering, addresses the problem of decreased efficiency in the production of electricity by photovoltaic solar panels caused by harsh environmental conditions, including the build up of dust, which can be particularly problematic in desert environments.
To counter this, they created a high-performance, cost-efficient smart robot that prevents the accumulation of dirt and dust on the panels.
It has sensors that allow it to move across the surface of the panels and accurately detect and remove any buildup. They also prevent the robot from wasting energy operating when the panels are not generating power — for example at night or on cloudy days. The cleaning mechanism uses cylindrical brushes and a high-performance fan.
The students worked on the project under the supervision of Dr. Mohammed Salahuddin Mohammed Suleiman and Dr. Musleh Al-Harthy, the dean of the engineering faculty.