University of Chicago astronomer Patrick Palmer last studied a comet in 2000, but he is the member of research teams that will make scientific observations of two comets this spring, and they narrowly missed viewing a third.
Some astronomers are predicting that the two comets, NEAT and LINEAR, will be visible with the naked eye, in the eastern sky shortly before sunrise or in the western sky shortly after sunset, during the next few weeks. But neither comet will be anywhere near as bright as comets Hyakutake and Hale-Bopp, which wowed observers in 1996 and 1997. Palmer says binoculars will probably be required to view NEAT and LINEAR.
Palmer mostly studies star formation, but he added comets to his research agenda in the early 1980s. He was a member of the research team that made the first radio image of a comet (Halley’s comet) in 1985. Now he is part of two separate research teams that in May will study the simultaneously approaching comets. One team will make a week of observations of the two comets using the 100-meter Green Bank Telescope at the National Radio Astronomy Observatory in West Virginia. The other will take measurements for 10 days using the Berkeley Illinois Maryland Array in northern California.
Steve Koppes | EurekAlert!
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Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.
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At TU Wien, an alternative for resource intensive formwork for the construction of concrete domes was developed. It is now used in a test dome for the Austrian Federal Railways Infrastructure (ÖBB Infrastruktur).
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