By timothy from Slashdot's conspiracy-theory department
As reported by the BBC, two satellites meant to form part of the EU's Galileo global positioning network
have been launched into a wrong, lower orbit
, and it is unclear whether they can be salvaged. NASASpaceFlight.com has a more detailed account
of the launch, which says [D]espite the Arianespace webcast noting no issue with the launch, it was later admitted the satellites were lofted into the wrong orbit. “Following the announcement made by Arianespace on the anomalies of the orbit injection of the Galileo satellites, the teams of industries and agencies involved in the early operations of the satellites are investigating the potential implications on the mission,” noted a short statement, many hours after the event. It is unlikely the satellites can be eased into their correct orbit, even with a large extension to their transit time. However, ESA are not classing the satellites as lost at this time. “Both satellites have been acquired and are safely controlled and operated from ESOC, ESA’s Operations Centre in Darmstadt, Germany,” the Agency added.
Over the course of the next "year or so," an additional 24 satellites are slated to complete the Galileo constellation, to be launched by a mixed slate of Ariane and Soyuz rockets.Read Replies (0)
By timothy from Slashdot's do-you-want-to-be-a-virtual-pedestrian? department
An anonymous reader writes Google has been testing its autonomous vehicles on U.S. roads for a while now. In fact, they're required to, by law. "California's regulations stipulate autonomous vehicles must be tested under "controlled conditions" that mimic real-world driving as closely as possible. Usually, that has meant a private test track or temporarily closed public road." It's easy enough to test a few prototypes, but whenever autonomous cars start being produced by manufacturers, it'll become a lot more complicated. Now, Google is lobbying to change that law to allow testing via computer simulation. Safety director Ron Medford said, "Computer simulations are actually more valuable, as they allow manufacturers to test their software under far more conditions and stresses than could possibly be achieved on a test track." Google spokeswoman Katelin Jabbari said, "In a few hours, we can test thousands upon thousands of scenarios which in terms of driving all over again might take decades." Shee adds that simulator data can also easily provide information on how human behavior creeps into driving. "It's not just about the physics of avoiding a crash. It's also about the emotional expectation of passengers and other drivers." For example, when one of Google's computer-controlled cars is cut off, the software brakes harder than it needs to, because this makes the passengers feel safer. Critics say relying heavily on simulation data is flawed because it doesn't take into account how other cars react to the computer's driving.Read Replies (0)
By Soulskill from Slashdot's good-enough-for-an-A department
sends this report from CNET:Researchers at the University of California Riverside Bourns College of Engineering and the University of Michigan have identified a weakness they believe to exist across Android, Windows, and iOS operating systems that could allow malicious apps to obtain personal information. Although it was tested only on an Android phone, the team believes that the method could be used across all three operating systems because all three share a similar feature: all apps can access a mobile device's shared memory. "The assumption has always been that these apps can't interfere with each other easily," said Zhiyun Qian, an associate professor at UC Riverside. "We show that assumption is not correct and one app can in fact significantly impact another and result in harmful consequences for the user." To demonstrate the method of attack, first a user must download an app that appears benign, such as a wallpaper, but actually contains malicious code. Once installed, the researchers can use it to access the shared memory statistics of any process (PDF), which doesn't require any special privileges.Read Replies (0)
By Soulskill from Slashdot's in-before-correlation-!=-causation department
An anonymous reader sends word of correlation found between higher internet speeds and higher test scores
. Quoting:The numbers—first crunched by the Internet provider comparison site HSI — show a distinct trend between faster Internet and higher ACT test scores. On the high end, Massachusetts scores big with an average Internet speed of 13.1Mbps, and an average ACT test score of 24.1. Mississippi, on the other hand, has an average speed of just 7.6Mbps and an average score of 18.9.
In between those two states, the other 48 fall in a positive correlation that, while not perfect, is quite undeniable. According to HSI's Edwin Ivanauskas, the correlation is stronger than that between household income and test scores, which have long been considered to be firmly connected to each other. The ACT scores were gathered from ACT.org, which has the official rankings and averages for the 2013 test, and the speed ratings were taken from Internet analytics firm Akamai's latest report.Read Replies (0)