Science
-
![[:es]The universe teems with weird black holes, gravitational-wave hunters find[:]](https://katedra.eus/app/uploads/2020/10/blackholes_1280p_0.jpg)
[:es]The universe teems with weird black holes, gravitational-wave hunters find[:]
[:es]Less than 5 years ago, physicists rocked the scientific world when they first spotted gravitational waves—fleeting ripples in space and time—set off when two gargantuan black holes billions of light-years away swirled into each other. Since then, scientists have detected a scad of similar events, mostly reported event by event. Today, however, researchers with a…
-
![[:es]Dogs and cats became family—and got their shot at heaven—after World War II[:]](https://katedra.eus/app/uploads/2020/10/dog-1280p.jpg)
[:es]Dogs and cats became family—and got their shot at heaven—after World War II[:]
[:es]In 1896, a grieving woman showed up at the office of her Manhattan veterinarian with an unusual request: Her dog had just died, and she wanted to give it a proper burial. The sympathetic doc offered a spot in his apple orchard north of the city. Word caught on, and soon the vet was besieged…
-
![[:es]Cryo–electron microscopy breaks the atomic resolution barrier at last[:]](https://katedra.eus/app/uploads/2020/10/apoferritin_1280p.jpg)
[:es]Cryo–electron microscopy breaks the atomic resolution barrier at last[:]
[:es]If you want to map the tiniest parts of a protein, you only have a few options: You can coax millions of individual protein molecules to align into crystals and analyze them using x-ray crystallography. Or you can flash-freeze copies of the protein and bombard them with electrons, a lower resolution method called cryo–electron microscopy…
-
![[:es]Double whammy doomed Madagascar’s giant birds and mammals[:]](https://katedra.eus/app/uploads/2020/10/main_bird_1280p.jpg)
[:es]Double whammy doomed Madagascar’s giant birds and mammals[:]
[:es]Madagascar was once home to towering elephant birds, giant tortoises, and even giant lemurs. Today no animal heavier than a car tire exists, and researchers have long debated whether humans or climate change were to blame. Now, a study of cave deposits on another Indian Ocean island has helped provide an answer: Unusually dry conditions…
-
![[:es]Is gene therapy ready to treat some forms of autism?[:]](https://katedra.eus/app/uploads/2020/10/201004_WM-204.jpg)
[:es]Is gene therapy ready to treat some forms of autism?[:]
[:es]As a baby, Quincy appeared healthy and happy, smiling at an early age and giggling frequently. But during her first few months of life, she missed many developmental milestones: At 10 weeks, she was not making eye contact. When her parents waved toys in front of her, she stared blankly. She had trouble feeding. And…
-
![[:es]Starlink already threatens optical astronomy. Now, radio astronomers are worried[:]](https://katedra.eus/app/uploads/2020/10/Mega-constellation_1280p.jpg)
[:es]Starlink already threatens optical astronomy. Now, radio astronomers are worried[:]
[:es]The 197 radio astronomy dishes of the Square Kilometre Array (SKA) in South Africa will sit within a radio-quiet zone the size of Pennsylvania where even a cellphone is forbidden, to preserve the array’s views of the heavens. Yet that precaution won’t save the telescope, due to be completed in the late 2020s, from what…
-
![[:es]Electric shocks to the tongue can quiet chronic ringing ears[:]](https://katedra.eus/app/uploads/2020/10/Patient-User-3_1280p.jpg)
[:es]Electric shocks to the tongue can quiet chronic ringing ears[:]
[:es]Tinnitus—a constant ringing or buzzing in the ears that affects about 15% of people—is difficult to understand and even harder to treat. Now, scientists have shown shocking the tongue—combined with a carefully designed sound program—can reduce symptoms of the disorder, not just while patients are being treated, but up to 1 year later.[:]
-
![[:es]‘Playful teasing’ in apes could provide clues to the evolutionary roots of early humor[:]](https://katedra.eus/app/uploads/2020/10/RootsOfTeasing_180x720.jpg)
[:es]‘Playful teasing’ in apes could provide clues to the evolutionary roots of early humor[:]
[:es]Even before they learn to talk, human infants and toddlers know how to joke: They play games such as peek-a-boo and take whatever unexpected actions get a rise from adults. Now, it appears that nonhuman apes—like gorillas and orangutans—engage in similar behaviors, according to a paper published last week in Biology Letters.[:]

![[:es]Strict biodiversity laws prevent Indian scientists from sharing new microbes with the world[:]](https://katedra.eus/app/uploads/2020/10/India_microbiology_1280x720.jpg)