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Scientists find that bursts of gamma rays may exceed the speed of light and cause time-reversibility. An artist’s drawing of a particle jet emanating from a black hole at the center of a blazar. Credit: DESY, Science Communication Lab (used with permission by …
Created by a Russian engineer, the theremin has delighted and confounded audiences since 1920 Russian physicist and engineer Lev Sergeyevich Termen—who later came to be widely known as Léon Theremin—invented his namesake instrument around 1920. Here, he’s pictured in 1928. (Library of Congress) …
The Chumash people poked bits of psychoactive plants into cave ceilings next to their paintings. Datura wrightii – Credit: Rick Bury (art)/Melissa Dabulamanzi (Datura)/PNAS – By Robby Berman 2020 Nov 27 – Mysterious pinwheel paintings in a California cave are probably representations of …
A scanning electron microscope image of metal-organic frameworks (MOF) CSIRO – By Michael Irving 2020 Dec 03 – Researchers at Lancaster University have developed a new material that can store energy for months, and potentially years, at a time. The material can be activated …
Harrison Ruffin Tyler and President John Tyler – Illustration courtesy of BlackChristianNews.Com – By Gillian Brockell – These days Harrison Ruffin Tyler, 91, is allowed only one designated visitor. Those are the pandemic rules at the nursing home in Virginia where he lives. …
Size Comparison Between Australia And The United States Tracking Of An Eagle Over A 20 Year Period Blue States Have A Smaller Population Than Los Angeles County 50 Percent Of Canadians Live South Of The Red Line The …
An entomologist explains why not to. He comes in peace. Matt Bertone, CC BY-ND – Author Matt Berton, Extension Associate in Entomology, North Carolina State University 2018 May 16 – I know it may be hard to convince you, but let me try: Don’t …
A tiger’s vertical stripes help it blend in with trees and grasses in its homelands in Asia. Frédéric Soltan/Corbis via Getty Images – Author Andrew Cushing, Assistant Professor in Zoological Medicine, University of Tennessee 2020 Nov 23 – Curious Kids is a series …
‘The Meeting of Two Worlds,’ a sculpture at L’Anse aux Meadows, commemorates the meeting of Vikings and Native Americans around the year 1000. D. Gordon E. Robertson/Wikimedia Commons, CC BY-SA – Author Valerie Hansen Professor of History, Yale University 2020 Jun 11 – …
The archaeological site, now open to tourists, offers clues about the mysterious empire that built it and its more famous sister city of Petra in Jordan. Once a thriving international trade hub, the archeological site of Hegra (also known as Mada’in Saleh) has …
