A quasar is an extremely bright and distant point-like source visible to radio telescopes. The source is a so-called Active Galactic Nucleus, fueled by a supermassive black hole. Source: https://earthsky.org/astronomy-essentials/definition-what-is-a-quasar…
Tag: Youth
Research Linking Violent Entertainment To Aggression Retracted After Scrutiny
Science magazine: As Samuel West combed through a paper that found a link between watching cartoon violence and aggression in children, he noticed something odd about the study participants. There were more than 3000 — an unusually large number — and they were all 10 years old. “It was just too perfect,” says West, a Ph.D. student in social psychology at…
Our interview with 5-time NBA All-Star Chris Webber about his Sports Activism online course, new on Coursera
By Shantelle Williams-Valadié, BOLD ERG Chair and Associate Director, University Partnerships, Coursera In the 1968 Olympics, medalists Tommie Smith and John Carlos punched defiant fists into the summer air, decrying oppression of Black communities in the country whose colors they wore on their tracksuits. The act seized the world of sports and was widely condemned […]
The post Our interview with 5-time…
See Sirius, the brightest star in the night sky
Find out how to spot Sirius, the brightest star as seen from Earth. Learn the mythology behind this dazzling light and how it earned the nickname of the Dog Star. Source: https://earthsky.org/brightest-stars/sirius-the-brightest-star…
Moon and Lion’s Heart rise mid-evening January 29 and 30
These next few nights – January 29 and 30, 2021 – use the moon to find Regulus, the Heart of the Lion in the constellation Leo. After the moon drops out of the evening sky, use the Big Dipper to star-hop to Regulus and Leo. Source: https://earthsky.org/tonight/moon-regulus-at-mid-evening-in-january…
Bull’s head: The Hyades star cluster
Meet the bright star Aldebaran, part of a V-shaped pattern of stars called the Hyades. This easy-to-find star cluster represents the face of Taurus the Bull. Source: https://earthsky.org/favorite-star-patterns/v-shaped-hyades-star-cluster-easy-to-find…
To recreate delicious meals, don’t treat recipes simply as algorithms
Recreating the delicious meals of my youth involves balancing the algorithms of online recipes against my recollection of watching my father cook, says Annalee Newitz Source: https://www.newscientist.com/article/mg24833130-800-to-recreate-delicious-meals-dont-treat-recipes-simply-as-algorithms/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home…
Reversal of Biological Clock Restores Vision In Old Mice
John Trumpian shares a report from SciTechDaily: Harvard Medical School scientists have successfully restored vision in mice by turning back the clock on aged eye cells in the retina to recapture youthful gene function. The team’s work, described today in Nature, represents the first demonstration that it may be possible to safely reprogram complex tissues, such as the nerve cells of…
Afghan Youth Find Escape in a Video Game
An anonymous reader shares a report: Rifle fire, hurried footsteps and distant explosions. The rat-a-tat of a firefight. Cars mangled from grenades. The young man was transfixed. It could have been any day in Kabul, where targeted assassinations, terrorist attacks and wanton violence have become routine, and the city often feels as if it is under siege. But for Safiullah Sharifi,…
German Regulators Look To Block Teens From Porn Sites
German authorities are trying to force internet service providers to block major porn sites that don’t implement age verification systems. Gizmodo reports: Currently, German law requires porn sites to restrict access to individuals 18 or older. What’s changed is that German authorities, like the British before them, have now dubbed it a good use of their time to actually pursue porn…