Researchers Use Tethered-Balloon Tests Ensure Safety of New Solar-Power Technology
What do tiny dust particles, 22-foot-wide red balloons and concentrated sunlight have in common?
Researchers from Sandia National Laboratories recently used 22-foot-wide tethered balloons to collect samples of airborne dust particles to ensure the safety of an emerging solar-power technology. The study determined that the dust created by the new technology is far below hazardous levels, said Cliff Ho, the lead researcher on the project. Ho s team just received $25 million from the Department of Energy to build a pilot plant that will incorporate this technology.
This next-generation renewable energy technology is called a high-temperature, falling-particle receiver for concentrating solar power. Concentrating solar power, while not as common as solar panels or wind turbines, has several advantages over those renewable energy sources, including the ability to store energy in the form of heat before
Here comes the sun: Tethered-balloon tests ensure safety of new solar-power technology
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North Korea got darker during Covid-19 crisis, says rights defender 2 minutes read
By Andres Sanchez
Seoul, Mar 12 (efe-epa).- Spanish researcher Lina Yoon, who has been secretly documenting human rights violations in North Korea for around five years, has expressed concern over how the regime took advantage of the coronavirus pandemic to strengthen further its grip over the country.
“North Korea is already a black hole, but now it is even darker. Never in the last 20 years has it been as dark,” Yoon told EFE, speaking over the phone from Madrid.
She said the isolation-induced by the Covid-19 made it even more difficult to know the food situation in the reclusive nation or the abuses committed by the regime.