Tag: earth

Cassini has taken another spectacular image of its home planet

NASA As it continues to make some of its final flybys of the Saturn system, the Cassini spacecraft hasn’t entirely forgone looking back toward its home planet, Earth. And last week the spacecraft’s camera snapped a shot of Earth and the Moon (visible in a close-cropped view) from a distance of 1.4 billion km away. Some of Saturn’s rings are also visible in the new images, including the A ring (at top) with the Keeler and Encke gaps visible, and the F ring (at bottom). The Sun is behind the disk of Saturn from Cassini’s perspective, so the rings are backlit in this view. Read 1 remaining paragraphs | Comments

See original article:
Cassini has taken another spectacular image of its home planet

Physicists Observe ‘Negative Mass’

Physicists have created a fluid with “negative mass, ” which accelerates towards you when pushed. From a report on BBC: In the everyday world, when an object is pushed, it accelerates in the same direction as the force applied to it; this relationship is described by Isaac Newton’s Second Law of Motion. But in theory, matter can have negative mass in the same sense that an electric charge can be positive or negative. Prof Peter Engels, from Washington State University (WSU), and colleagues cooled rubidium atoms to just above the temperature of absolute zero (close to -273C), creating what’s known as a Bose-Einstein condensate. In this state, particles move extremely slowly, and following behaviour predicted by quantum mechanics, acting like waves. They also synchronise and move together in what’s known as a superfluid, which flows without losing energy. Read more of this story at Slashdot.

See the original article here:
Physicists Observe ‘Negative Mass’

Google Earth Gets a Huge Redesign with Guided Tours, 3D View, and More

Google pushed out a big update to Google Earth for Chrome and Android today. Alongside a snazzy new look, the new version adds guided tours, 3D maps, a random button, and lots more. Read more…

See more here:
Google Earth Gets a Huge Redesign with Guided Tours, 3D View, and More

A ‘brand new’ Google Earth will arrive April 18th

Google just sent out invites for a pre-Earth Day event in New York City next week. In keeping with the obvious theme, the search giant is promising to take the lid off of a “brand new experience” for Google Earth. While Google doesn’t offer many details aside from the time, date and location — April 18th, 8:30 AM ET at New York’s Whitney Museum of Art — the Earth team did launch a virtual reality version of the planet-visualizing app onto Steam late last year. The app was only available for HTC Vive headsets at the time, but the team promised to add support for additional platforms in the near future. So we’d be surprised if next week’s event didn’t come with an update for Google Daydream , which would make it much more affordable as a VR educational tool. Google has also been developing its stand-alone virtual tours and augmented reality museum experiences for years now and could be incorporating more of those “on-the-ground” kinds of VR experiences directly into its incredibly detailed whole-Earth model.

View article:
A ‘brand new’ Google Earth will arrive April 18th

Boeing Expects To Save Millions In Dreamliner Costs Using 3D-Printed Titanium Parts

According to Reuters, Boeing has hired Norsk Titanium AS to print titanium parts for its 787 Dreamliner, paving the way to cost savings of $2 million to $3 million for each plane. The 3D-printed metal parts will replace pieces made with more expensive traditional manufacturing, thus making the 787 more profitable. From the report: Strong, lightweight titanium alloy is seven times more costly than aluminum, and accounts for about $17 million of the cost of a $265 million Dreamliner, industry sources say. Boeing has been trying to reduce titanium costs on the 787, which requires more of the metal than other models because of its carbon-fiber composite fuselage and wings. Titanium also is used extensively on Airbus Group SE’s rival A350 jet. Norsk worked with Boeing for more than a year to design four 787 parts and obtain Federal Aviation Administration certification for them, Chip Yates, Norsk Titanium’s vice president of marketing, said. Norsk expects the U.S. regulatory agency will approve the material properties and production process for the parts later this year, which would “open up the floodgates” and allow Norsk to print thousands of different parts for each Dreamliner, without each part requiring separate FAA approval, Yates said. Norsk said that initially it will print in Norway, but is building up a 67, 000-square-foot (6, 220-square-meter) facility in Plattsburgh in upstate New York, where it aims to have nine printers running by year-end. Read more of this story at Slashdot.

Original post:
Boeing Expects To Save Millions In Dreamliner Costs Using 3D-Printed Titanium Parts

Public Crowd-sourcing Finds New Exoplanets

brindafella writes: A participant in a TV program “Stargazing Live” on Australia’s ABC TV channel has found four planets closely orbiting a star, using an online database. Astrophysicist Dr Chris Lintott, the principal investigator of Zooniverse, reported on Thursday’s show that four “Super Earth” planets had been identified in the data. They orbit closer to their star than Mercury does to our Sun. The person responsible for the find, Andrew Grey, is a mechanic by day and amateur astronomer in his spare time, and lives in the city of Darwin, Northern Territory. The data is sourced from NASA’s Kepler Space Telescope. “Stargazing Live” host Professor Brian Cox said he could not be more excited about the discovery. “In the seven years I’ve been making Stargazing Live this is the most significant scientific discovery we’ve ever made. The results are astonishing.” Read more of this story at Slashdot.

Read the article:
Public Crowd-sourcing Finds New Exoplanets

Streaming Services Generated More Than 50% of All US Music Industry Revenue in 2016

Janko Roettgers, reporting for Variety: Streaming music services were for the first time ever responsible for more than 50 percent of all U.S. music industry revenue in 2016, according to new numbers released by the Recording Industry Association of America (RIAA) Thursday. Paid and ad-supported streaming together generated 51 percent of music revenue last year, to be precise, bringing in a total of $3.9 billion. In 2015, streaming music was responsible for 34 percent of the music industry’s annual revenue. Much of that increase can be attributed to a strong growth of paid subscriptions to services like Spotify and Apple Music. Revenue from paid subscription plans more than doubled in 2016, bringing in $2.5 billion, with an average of 22.6 million U.S. consumers subscribing to streaming services last year. The year before, subscription services had an average of 10.8 million paying subscribers. Read more of this story at Slashdot.

Taken from:
Streaming Services Generated More Than 50% of All US Music Industry Revenue in 2016

Dutch Scientist Proposes Circular Runways For Airport Efficiency

An anonymous reader quotes a report from Fast Company: While airport terminal architecture has a solid history of style and innovation, rarely is a proposal put forth to utterly redesign the runway. But that’s precisely the aim of Henk Hesselink, a Dutch scientist working with the Netherlands Aerospace Center. Dubbed the “endless runway, ” Hesselink’s brainchild is a 360-degree landing strip measuring more than two miles in diameter. Since airplanes would be able to approach and take off from any direction around the proposed circle, they wouldn’t have to fight against crosswinds. And three planes would be able to take off or land at the same time. Hesselink’s team uses flight simulators and computerized calculations to test the unconventional design, and have determined that round airports would be more efficient than existing layouts. With a central terminal, the airport would only use about a third of the land of the typical airport with the same airplane capacity. And there’s an added benefit to those living near airports: Flight paths could be more distributed, and thereby making plane noise more tolerable. BBC produced a video detailing Hesselink’s circular runway concept. The concept is fascinating but there are many questions the video does not answer. Phil Derner Jr. from NYC Aviation writes via Business Insider about some of those unanswered questions in his article titled “Why the circular runway concept wouldn’t work.” The fundamental issues discussed in his report include banked runway issues, curved runway issues, navigation issues, and airspace issues. What do you think of Hesselink’s concept? Do you think it is preposterous or shows promise? Read more of this story at Slashdot.

Original post:
Dutch Scientist Proposes Circular Runways For Airport Efficiency

Scientists Sent a Rocket To Mars For Less Than It Cost To Make ‘The Martian’

Ipsita Agarwal via Backchannel retells the story of how India’s underfunded space organization, ISRO, managed to send a rocket to Mars for less than it cost to make the movie “The Martian, ” starring Matt Damon as Mark Watney. “While NASA’s Mars probe, Maven, cost $651 million, the budget for this mission was $74 million, ” Agarwal writes. In what appears to be India’s version of “Hidden Figures” (a movie that also cost more to make than ISRO’s budget for the Mars rocket), the team of scientists behind the rocket launch consisted of Indian women, who not only managed to pull off the mission successfully but did so in only 18 months. Backchannel reports: A few months and several million kilometers later, the orbiter prepared to enter Mars’ gravity. This was a critical moment. If the orbiter entered Mars’ gravity at the wrong angle, off by so much as one degree, it would either crash onto the surface of Mars or fly right past it, lost in the emptiness of space. Back on Earth, its team of scientists and engineers waited for a signal from the orbiter. Mission designer Ritu Karidhal had worked 48 hours straight, fueled by anticipation. As a child, Minal Rohit had watched space missions on TV. Now, Minal waited for news on the orbiter she and her colleague, Moumita Dutta, had helped engineer. When the signal finally arrived, the mission control room broke into cheers. If you work in such a room, deputy operations director, Nandini Harinath, says, “you no longer need to watch a thriller movie to feel the thrill in life. You feel it in your day-to-day work.” This was not the only success of the mission. An image of the scientists celebrating in the mission control room went viral. Girls in India and beyond gained new heroes: the kind that wear sarees and tie flowers in their hair, and send rockets into space. User shas3 notes in a comment on Hacker News’ post: “If you are interested in Indian women scientists and engineers, there is a nice compilation (a bit tiresome to read, but worth it, IMO) of biographical essays called ‘Lilvati’s Daughters.'” Read more of this story at Slashdot.

More here:
Scientists Sent a Rocket To Mars For Less Than It Cost To Make ‘The Martian’

Scientists Claim to Have Found Our Planet’s Oldest Fossils

An international team of researchers say they’ve found fossils dating back to at least 3.77 billion years ago, making them the oldest fossils ever found on our planet. The discovery, though sure to attract scrutiny, has implications for our understanding of how life got started on Earth—and how it may have emerged… Read more…

See original article:
Scientists Claim to Have Found Our Planet’s Oldest Fossils