Gas falling towards the center of a galaxy is a major driver of new star formation and the growth of supermassive black holes. Most of this gas is hydrogen, but it also includes more complex molecules, particularly water. However, astronomers have many questions about the details of how the inflow translates to star formation, some of which have now been answered by using telescopes that can see in the infrared to detect the spectral lines from water and other molecules.
ESO 320-G030 is a “starburst galaxy” emitting around a hundred times as much energy as the Milky Way, and forming stars 18 times as fast. This is driven by the inflow of gas, but efforts to observe the connection have been hindered by dust blocking light from around the galactic center at optical wavelengths just as we struggle to see into the core of our own galaxy.
Professor helps create collapsible ‘distributed tension’ sculpture Professor helps create collapsible ‘distributed tension’ sculpture
Tencylinder, a tensegrity structure designed with engineering assistance from assistant professor Landolf Rhode-Barbarigos, is displayed in Geneva’s Bâtiment des forces Motrices, a hydraulic power plant built in the late 1800s that was converted to a performance art center in the 1980s.
Photos courtesy of Allain Herzog/Hermès
By Janette Neuwahl Tannen
04-19-2021
Tencylinder, a tensegrity structure designed with engineering assistance from assistant professor Landolf Rhode-Barbarigos, is displayed in Geneva’s Bâtiment des forces Motrices, a hydraulic power plant built in the late 1800s that was converted to a performance art center in the 1980s.
SUMMARY
Juan Baptista de Segura was a priest and vice-provincial of the Jesuits in the Spanish province of La Florida. In 1570 he led a mission to the Chesapeake Bay and was killed the next year in an ambush led by Don Luís de Velasco (formerly Paquiquineo), a Virginia Indian who had converted to Christianity. Born in Toledo and educated at a time when Spanish clerics vigorously debated the best way of converting American Indians, Segura joined the Society of Jesus in 1556 and was ordained a priest the following year. Ten years after that he was named vice-provincial of the Jesuits in La Florida. An intellectual and idealist, Segura was also an indecisive leader who advised his superior that the Jesuits should abandon La Florida and then, just a few months later, organized a mission to the Chesapeake Bay. Segura insisted, against the advice of Florida governor Pedro Menéndez de Avilés, that the Jesuits did not need military protection on their mission. He instead placed
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