Sdorn Provides Timely and Accurate Technology News, Covering APP, AI, IoT, Cybersecurity, Startup and Innovation.
⎯ 《 Sdorn • Com 》
Elon Musk's army of inactive followers paints a bleak picture of X as a whole
Elon Musk's army of inactive followers paints a bleak picture of X as a whole
A significant chunk of Elon Musk's more than 153 million followers on X appear to
2023-08-19 17:46
JR East Reports Outage in Suica Mobile App, Online Bookings
JR East Reports Outage in Suica Mobile App, Online Bookings
East Japan Railway Co. said part of its computer system, including online ticket booking, credit card settlement and
2023-06-24 10:19
US Home Insurance ‘Bubble’ Closer to Popping as Climate Risks Mount
US Home Insurance ‘Bubble’ Closer to Popping as Climate Risks Mount
Home insurance costs that have soared in much of the US may get even higher. Tens of millions
2023-09-20 12:55
US regulator seeks court order to compel Elon Musk to testify about his Twitter acquisition
US regulator seeks court order to compel Elon Musk to testify about his Twitter acquisition
The US Securities and Exchange Commission on Thursday applied for a court order to force Elon Musk to testify in an ongoing probe related to his acquisition of Twitter and public disclosures he made in connection with the deal, according to court filings.
2023-10-06 04:54
Easy Marks: When It Comes to Data Breaches, Social Engineering Still Works
Easy Marks: When It Comes to Data Breaches, Social Engineering Still Works
The next data breach to expose your info probably won’t involve an elite hacker sharpening
2023-06-07 09:25
Ex-Apple employee reveals game-changing iPhone hacks everyone should know
Ex-Apple employee reveals game-changing iPhone hacks everyone should know
A former Apple employee has been sharing some of the handy iPhone hacks he learnt while working at the tech giant - and we can't believe we didn't know them before. From tips as simple as holding your camera button down to record a video instead of swiping, to switching to a 'one-handed keyboard' to save your muscles aching, Tyler Morgan has completely changed the way his followers are using their phones. Arguably one of the most popular he recommended is that you can actually do voiceovers while screen recording, by swiping down to reveal a microphone button. Sign up to our new free Indy100 weekly newsletter
2023-11-28 00:53
SOUTHTEC 2023 Exhibitor Preview: Innovative Global Suppliers, Distributors and Equipment Builders to Demonstrate Latest Technologies and Solutions for Southeast Manufacturers
SOUTHTEC 2023 Exhibitor Preview: Innovative Global Suppliers, Distributors and Equipment Builders to Demonstrate Latest Technologies and Solutions for Southeast Manufacturers
GREENVILLE, S.C.--(BUSINESS WIRE)--Aug 18, 2023--
2023-08-19 03:22
Wild boar in Germany are strangely radioactive – now scientists know why
Wild boar in Germany are strangely radioactive – now scientists know why
Wild boar in southeastern Germany have long contained high levels of radioactive substances, which has been attributed to the 1986 Chernobyl nuclear disaster. But as radioactivity levels have fallen in other animals, they have stayed much the same among boar. Now, scientists have worked out the secret behind the so-called “wild boar paradox”. Research shows there is another culprit for the high levels of radioactivity: nuclear weapons tests from the mid-20th century. And both the weapons and the nuclear reactor meltdown continue contaminating the boar because of their diet. While the muscular boar seem healthy, the dangerous levels of radioactive caesium, the main contaminator, have prompted people to stop hunting them. In turn, there is now an overpopulation issue. “Our work reveals deeper insights into the notorious radio-cesium contamination in Bavarian wild boars beyond the total radionuclide quantification only,” radioecologist Felix Stäger from Leibniz University Hannover wrote in a paper. After a nuclear incident, radioactive materials can pose a significant threat to ecosystems. This happened after the Chernobyl meltdown in 1986, where there was an increase in radioactive caesium contamination. The main component of this, caesium-137, has a half-life of about 30 years, meaning it loses its radioactivity fairly quickly. However, caesium-135, which is created via nuclear fission, is far more stable. It has a half-life of more than 2m years. The ratio of cesium-135 compared to cesium-137 can help us work out where the cesium came from. A high ratio indicates nuclear weapon explosions, while a low ratio points to nuclear reactors like Chernobyl. So the researchers analysed caesium levels from 48 wild boar meat samples from 11 regions of Bavaria. It turns out that nuclear weapons testing was responsible for between 12 per cent and 68 per cent of the unsafe contamination in the samples. “All samples exhibit signatures of mixing,” wrote the researchers. “Nuclear weapons fallout and [Chernobyl] have mixed in the Bavarian soil, the release maxima of which were about 20−30 years apart.” So while Chernobyl remains the main source of caesium in wild boar, about a quarter of the samples showed enough contributions from weapons fallout to exceed safety limits even before the reactor meltdown comes into account. And because wild boar eat so many truffles, it has been exacerbated. The fungus absorbs high levels of contamination from both sources. Wild boars' diets, which include underground truffles, have absorbed varying levels of contamination from both sources, which has contributed to the animals' persistent radioactivity. “This study illustrates that strategic decisions to conduct atmospheric nuclear tests 60−80 years ago still impact remote natural environments, wildlife, and a human food source today,” the authors concluded. The study was published in Environmental Science & Technology. Sign up to our free Indy100 weekly newsletter Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.
2023-09-01 00:53
A meteor which exploded over the Atlantic had similar force as Hiroshima atomic bomb
A meteor which exploded over the Atlantic had similar force as Hiroshima atomic bomb
A meteor exploded over the Atlantic Ocean at a force comparable to the atomic bomb dropped on Hiroshima during the Second World War. While this may sound like a scary prospect, there is nothing to worry about as this asteroid did not actually hit the Earth. The debris burned up at a height of around 31 kilometres above the Atlantic Ocean off the coast of Brazil, experts say. Data from NASA showed that the meteor appeared to release the equivalent energy of around 12,000 tonnes of TNT - that's approximately 12 kilotons of explosive power. Sign up to our free Indy100 weekly newsletter Similarly, the Hiroshima Bomb detonated with an approximate energy of 15 kilotons – that is, 15 thousand tonnes of TNT equivalent. This force caused devastation in the Japanese city and killed at least 80,000 people instantly, with tens of thousands dying later due to radiation exposure. Although 12 kilotonnes does sound like a lot, there have also been other explosions that have had a higher number than this. One example is the 450 kilotons of explosive energy (0.45 megatons) released as a result of the Chelyabinsk meteor back in 2013 - 26 to 33 times as much energy as the Hiroshima Bomb. The house-sized asteroid exploded 14 miles above the ground and generated a shock wave that blew out windows over 200 square miles and damaged some buildings. Over 1,600 people were injured in the blast, mostly due to broken glass, according to NASA. Elsewhere, amazing footage captures the moment a meteor crashes into the moon and, scientists discover a secret planet hiding in our solar system. Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.
2023-07-27 21:16
Mystery signals coming from space might finally have been explained by ‘starquakes’
Mystery signals coming from space might finally have been explained by ‘starquakes’
Mysterious blasts coming from deep in space could be the result of “starquakes”, according to a new study. For years, scientists have been observing fast radio bursts, or FRBs, coming from distant parts of space. They are very intense, very short blasts of energy – and despite finding many of them, researchers still do not know where they are coming from or how they might be formed. Now, scientists have spotted that there is appears to be similarities between those FRBs and earthquakes. Researchers behind the new study suggest that the blasts could be the result of similar behaviour on neutron stars, known as starquakes. It is just one possible explanation for the unusual bursts, which have led to suggestions they could be anything from neutron stars colliding with black holes to alien technology. Most have settled on the belief that at least some of those FRBs come from neutron stars, however, which are formed when supergiant stars collapse into an incredibly dense, small object. In the new study, researchers looked at data from nearly 7,000 bursts, taken from three different sources that are sending out repeated FRBs, examining the time and energy that they emerged in. They then also looked at earthquake information taken from Japan, and data on solar flares, and looked to compare the three. There was little connection between FRBs and solar flares, the researchers found. But there was a striking similarity between the blasts and earthquakes. “The results show notable similarities between FRBs and earthquakes in the following ways: First, the probability of an aftershock occurring for a single event is 10-50%; second, the aftershock occurrence rate decreases with time, as a power of time; third, the aftershock rate is always constant even if the FRB-earthquake activity (mean rate) changes significantly; and fourth, there is no correlation between the energies of the main shock and its aftershock,” said Tomonori Totani from the University of Tokyo, one of the leaders of the study. The findings have led scientists to speculate that there is a solid crust on the outer surface of neutron stars. That crust then experiences starquakes in the same way the Earth’s surface does – and those quakes then let out powerful blasts of energy that make their way to us as FRBs. But researchers say they will need to further examine those FRBs to better understand the connection between the two – as well as to help give us information about quakes and other physical phenomena that are closer to home. “By studying starquakes on distant ultradense stars, which are completely different environments from Earth, we may gain new insights into earthquakes,” said Professor Totani. “The interior of a neutron star is the densest place in the universe, comparable to that of the interior of an atomic nucleus. “Starquakes in neutron stars have opened up the possibility of gaining new insights into very high-density matter and the fundamental laws of nuclear physics.” The research is described in a new paper, ‘Fast radio bursts trigger aftershocks resembling earthquakes, but not solar flares’, published in the journal Monthly Notices of the Royal Astronomical Society.
2023-10-11 23:26
Google vows more transparency on ads as new EU rules kick in
Google vows more transparency on ads as new EU rules kick in
By Foo Yun Chee BRUSSELS Google will provide more information on targeted advertisements and give researchers more access
2023-08-24 16:22
Tourists flee wildfire on Greek island of Rhodes, flights cancelled
Tourists flee wildfire on Greek island of Rhodes, flights cancelled
By Renee Maltezou and Angeliki Koutantou ATHENS (Reuters) -Thousands of tourists and residents fleeing a wildfire on Rhodes huddled in
2023-07-23 20:49