By samzenpus from
Slashdot's check-it-out department:
wjcofkc writes
"CNN reports that astronomers using NASA's NuSTAR telescope have for the first time mapped deep within the radioactive material from a supernova. The light from the originating star, Cassiopeia A, located about 11,000 light-years away and having had about eight time the mass of our sun, first reached Earth about 350 years ago. But that does not mean there still isn't a lot to study. Scientists using the NuSTAR, which stands for Nuclear Spectroscopic Telescope Array, launched in June 2012 and consisting of an instrument with two telescopes that focus high energy X-ray light, were able to peer deep within the cataclysmic aftermath. While there is currently no model for how the process of a supernova works, the findings in the study are a big step forward. 'Until we had NuSTAR, we couldn't see down to the core of the explosion,' Brian Grefenstette, lead author and research scientist at the California Institute of Technology, said at a news conference Wednesday."Read Replies (0)
By Soulskill from
Slashdot's no-need-to-help-it-along department:
Hugh Pickens DOT Com writes
"About 252 million years ago, cracks in the Earth's crust in Siberia caused vast amounts of lava to spill out and blanket the region with about 6,000,000 cubic kilometers of molten material—enough to cover the continental U.S. at a one mile depth. It triggered a huge change in climate, causing a mass extinction event that killed roughly 90 percent of life on earth. Now Helen Thompson writes in the Smithsonian that a team at MIT has focused its efforts on this major extinction event, which marks the end of the Permian period and the beginning of the Triassic period. Their results suggest that the die-out happened a lot faster than previously thought — perhaps over a span of only 60,000 years. The shorter time scale means that organisms would have had less time to react and adapt to changes in climate, atmospheric CO2 and ocean acidity. Without the ability to adapt, they died. Other mass extinction events have also been narrowed down to short timeframes. The asteroid impact that killed the dinosaurs at the end of the Cretaceous period only took about 32,000 years. A similar study of another mass extinction triggered by volcanic eruptions at the end of the Triassic period suggests it lasted less than 5,000 years. Even though all of these extinction events were caused by different things, the ecosystem collapse happened very quickly. 'Whatever the causes of the extinctions may be, and it looks like there are very different causes for some of them, the biosphere may collapse in very similar ways once it gets beyond a tipping point,' says Doug Erwin. Some scientists see the end of the Permian as a lesson for the 21st century (PDF) and say that understanding the conditions leading up to, within, and after a mass extinction event may help us to avoid human-induced ecosystem collapses in the future. As Erwin puts it, 'you don't want to start a mass extinction, because once a mass extinction begins, the prognosis is pretty grim.'"Read Replies (0)
By Soulskill from
Slashdot's going-for-the-high-score department:
Trailrunner7 writes:
"AT&T, in its first transparency report, said it received at least 2,000 National Security Letters and nearly 38,000 requests for location data on its subscribers in 2013. The new report from AT&T is the latest in a growing list of publications from telecom companies, Web providers and cell phone carriers who have been under pressure from privacy advocates and security experts in the wake of the Edward Snowden NSA surveillance revelations. AT&T's report shows a higher number of NSLs and subpoenas in 2013 than its most relevant competitor, Verizon. In January, Verizon's first transparency report showed that the company received between 1,000 and 1,999 NSLs in 2013 and 164,000 subpoenas. AT&T said it got 2,000-2,999 NSLs and 248,343 subpoenas last year. AT&T also received nearly 37,000 court orders and more than 16,000 search warrants."Read Replies (0)
By Unknown Lamer from
Slashdot's yarr-matey department:
The anti-piracy organization BREIN managed to
force major Dutch ISPs to block the Pirate Bay two years ago. XS4all and Ziggo mounted an appeal, and two weeks ago the courts
ruled in favor of Ziggo and XS4all with BREIN vowing to appeal. Now it looks like they might have given up on the appeal: BREIN agreed to let the 2nd largest ISP, UPC,
lift their blockade of the Pirate Bay pending a possible appeal to the Supreme Court. From the article:
"Starting today subscribers of the second largest ISP in the Netherlands will be able to freely access The Pirate Bay once again. According to UPC, anti-piracy group BREIN agreed to a lifting of the ban pending the outcome of a possible appeal in a case against two other Dutch Internet providers. ... In a surprise announcement today, this situation changed. UPC Netherlands, the second largest ISP in the country, said it has decided to lift the Pirate Bay blockade. This is a significant move since the court has yet to decide on the appeal in UPC’s case, a decision which isn’t expected before April this year."Read Replies (0)
By samzenpus from
Slashdot's go-ahead-and-ask department:
In addition to sponsoring the work of Linus Torvalds,
The Linux Foundation supports and promotes a wide variety of resources and services for Linux. Their recently released
2014 Linux Jobs Report surveyed more than 1,000 managers and corporations, finding in part, that the demand for "Linux Professionals" was up 70% from last year. Jim Zemlin is the Executive Director of the Linux Foundation and he has agreed to answer any questions that you have about the report and the state of Linux in general. As usual,
ask as many as you'd like, but please, one question per post.
Read Replies (0)