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Korean scientists may have found a way to desalinate seawater faster

Nanofiber Membrane Filters 99.9% of Salt from Seawater within Minutes The nanofiber membrane upheld a 99.9% salt rejection rate for a month. By  Ameya Paleja Jul 06, 2021               Schematic of the electrospinning device used to make this nanofiber membraneElsevier The World Health Organization estimates that over 785 million people lack a clean source of drinking water. Even though 71 percent of the Earth’s surface is covered by seawater, we cannot drink

New Chinese technology combines wood, bacteria, sunlight to purify water

New technology combines wood, bacteria, sunlight to purify water By Brooks Hays     The new water-purification device features a top layer of light-absorbing carbon nanotubes, a middle layer of insulating glass bubbles and a bottom layer water-transporting wood. Photo by Qing-Fang Guan, et al. / Nano Letters 2020 July 8 (UPI) — Engineers have developed a new wood-based steam generator that can purify water using bacteria-produced nanomaterials and the sun’s energy. Solar steam generators, which

Massive human head from China forces scientists to rethink evolution

Massive human head in Chinese well forces scientists to rethink evolution ‘Dragon man’ skull reveals new branch of family tree more closely related to modern humans than Neanderthals Chinese researchers have called the skull, found in Harbin in the north, Homo longi, or ‘Dragon man’, but other experts are more cautious about naming a new species. Photograph: Wei Gao   Ian Sample Science editor @iansample Fri 25 Jun 2021 16.00 BST     The discovery of a

How to get root on Linux with a seven-year-old bug

Privilege escalation with polkit:  Kevin Backhouse polkit is a system service installed by default on many Linux distributions. It’s used by systemd, so any Linux distribution that uses systemd also uses polkit. As a member of GitHub Security Lab, my job is to help improve the security of open source software by finding and reporting vulnerabilities. A few weeks ago, I found a privilege escalation vulnerability in polkit. I coordinated the disclosure of the vulnerability with the polkit

NASA’s moon rocket

SLS: First view of Nasa’s assembled ‘megarocket’ By Paul Rincon Science editor, BBC News website Published12 June Share Related Topics Artemis IMAGE COPYRIGHTNASAimage captionThe core stage and twin booster rockets stand taller than the Statue of Liberty (minus its pedestal) Nasa has assembled the first of its powerful Space Launch System (SLS) rockets, which will carry humans to the Moon this decade. On Friday, engineers at Florida’s Kennedy Space Center finished lowering the 65m (212ft)

Bitcoin transactions are more transparent than cash

Colonial Pipeline investigation upends idea that Bitcoin is untraceable June 9, 2021 at 4:35 pm Updated June 9, 2021 at 7:28 pm    People mill about outside the Bitcoin 2021 confab in Miami on June 4. The FBI’s recovery of bitcoins paid in the Colonial Pipeline ransomware… (Alfonso Duran / The New York Times) More  Skip Ad By  NICOLE PERLROTH ,  KATIE BENNER  and  Erin Griffith The New York Times When Bitcoin burst onto the scene in

Pupil Size is a Marker of Intelligence?

Pupil Size Is a Marker of Intelligence There is a surprising correlation between baseline pupil size and several measures of cognitive ability By Jason S. Tsukahara, Alexander P. Burgoyne, Randall W. Engle on June 2, 2021       Credit: Erik Von Weber Getty Images It has been said that “the eyes are the window to the soul,” but new research suggests that they may be a window to the brain as well. Our pupils respond to more than just the light. They

Gaza:Recent bombings by Israel have caused a Mental Health Crisis

A New Mental Health Crisis Is Raging in Gaza Recent bombings by Israel have caused more than just physical trauma By Yasser Abu Jamei on June 4, 2021       Civil defense workers pore through rubble on May 16, 2021, in the aftermath of an Israeli bombing. Credit: Fatima Shbair Getty Images “Have you ever seen a six-month old baby with exaggerated startle response?” One of my colleagues who works on our telephone counseling service was calling me for

A New Type Of COVID-19 Vaccine

A New Type Of COVID-19 Vaccine Could Debut Soon Facebook Twitter Flipboard Email June 6, 20216:02 AM ET Heard on All Things Considered JOE PALCA TwitterFacebook LISTEN· 4:084-Minute ListenAdd toPLAYLIST Download Embed Transcript     A vial of the experimental Novavax coronavirus vaccine is ready for use in a London study in 2020. Novavax’s vaccine candidate contains a noninfectious bit of the virus — the spike protein — with a substance called an adjuvant added that helps

Aducanumab, new drug for Alzheimer’s

Explained: Aducanumab, new drug for Alzheimer’s disease and row over approval Early in November 2020, the drug was denied approval after a marathon seven-hour long virtual meeting with the federal medical panel disagreeing with the claims. ADVERTISEMENT India Today Web Desk  New Delhi June 9, 2021 UPDATED: June 9, 2021 16:55 IST     Aducanumab will be sold under the brand name of Aduhelm. (Photo: AP)   The American Food and Drug Administration (FDA) on

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