4,020 articles mezi dny 1.12.2019 a 31.12.2019
Year in Aerospace: Looking back at Boeing’s troubles, looking ahead to commercial triumphs
2019 was a tough year for the aerospace industry — a year when a control system flaw caused the second catastrophic crash of a 737 MAX jet and sparked a worldwide grounding of Boeing's fastest-selling plane. Nine months after the Ethiopian Airlines crash, which killed 157 people, the 737 MAX is still grounded. Boeing's CEO and the head of its commercial airplanes unit have been replaced,...
Meet Steve, the winter sky phenomenon
Steve has been around for eons, but has been mis-identified as aurora until nowHands up if you’ve ever seen Steve. No, not the chap living down the road, but Steve the winter sky phenomenon. First spotted by auroral photographers in 2016, “Steve” is a purple band of light, sometimes accompanied by green lines, nicknamed “picket-fences”.Although Steve shares similarities with auroras –...
Uber joins lawsuits to block California law protecting gig economy workers
Ride-share company Uber and on-demand meal delivery service Postmates filed a lawsuit Monday to block a broad new California law aimed at giving wage and benefit protections to people who work as independent...
Blazar variability
Active galactic nuclei (AGN) are supermassive black holes at the centers of galaxies that are accreting material. These AGN emit jets of charged particles that move at speeds close to that of light, transporting huge amounts of energy away from the central black hole region and radiating across the electromagnetic spectrum. Blazars are extreme examples of AGN in which the collimated jets are...
Lawsuit: Asbestos, mold, fumes make fire station hazardous
A firefighter says asbestos, mold and toxic fumes inside a fire station in Alabama's largest city have sickened him and other firefighters.
Egypt draws ire with artifacts' move to busy Tahrir Square
Egypt's recent decision to transport ancient Pharaonic artifacts to a traffic circle in the congested heart of Cairo has fueled fresh controversy over the government's handling of its archaeological heritage.
eDNA expands species surveys to capture a more complete picture
Tiny bits of DNA collected from waters off the West Coast allowed scientists to identify more species of marine vertebrates than traditional surveys with trawl nets. They also reflect environmental shifts such as unusual ocean temperatures that affect the organisms present, new research shows.
NASA finds Tropical Storm Calvinia moving away from Mauritius
Visible imagery from NASA's Aqua satellite on Dec. 31 revealed that Tropical Cyclone Calvinia had moved south of the island of Mauritius in the Southern Indian Ocean.
NASA finds a weaker Sarai now a depression
NASA-NOAA's Suomi NPP satellite provided forecasters with an image of Tropical Cyclone Sarai and it showed a much weaker storm near Tonga in the South Pacific Ocean.
eDNA expands species surveys to capture a more complete picture
- ScienceDaily
- 19/12/31 18:51
Tiny bits of DNA collected from waters off the West Coast allowed scientists to identify more species of marine vertebrates than traditional surveys with trawl nets. They also reflect environmental shifts such as unusual ocean temperatures that affect the organisms present, new research shows.
What Are The Best Hangover Cures? We Asked Alcohol Experts
Learn how to shift that headache – and why it's best not to reach for another drink – from those in the...
Gardeners urged to seek out alternatives to peat moss
It may be time to bid goodbye to peat moss in the garden and in pots, according to gardener and soil tester Lee Reich, because the way it's harvested is...
Trial suggests babies in intensive care can be better protected from parental bacteria
- ScienceDaily
- 19/12/31 17:19
A research team reports it has developed and tested a relatively simple strategy for reducing the chance of parents exposing their babies in the NICU to one of the most commonly diagnosed and potentially deadly microbial scourges in a hospital: Staphylococcus aureus.
How fish fins evolved just before the transition to land
- ScienceDaily
- 19/12/31 17:18
Research on fossilized fish details the evolution of fins as they began to transition into limbs fit for walking on land.