Can SpaceX really land on Mars? Absolutely, says an engineer who would know

Company has quietly tested Mars landing techniques with its first stage returns.

The first stage of the Falcon 9 rocket begins its reentry burn at an altitude of 70km. (credit: NASA)

In September, 2014, a Falcon 9 rocket blasted off from Florida carrying a Dragon spacecraft bound for the International Space Station. The capsule carried some notable cargo, including the first 3D printer to be tested in space as well as 20 mousetronauts to study muscle loss. Yet the most far-reaching part of that mission came after the Falcon 9 deployed its upper stage and began falling back to Earth.

As it descended into the upper levels of Earth's atmosphere, the rocket's engines fired for its "reentry burn." A few minutes later, the first stage splashed down in the Atlantic Ocean, completing one of the last flights before SpaceX began trying to land its rocket on an autonomous drone ship. But even as SpaceX was testing technology needed for terrestrial landings of its reusable Falcon 9 rocket, it was also taking some of its first steps toward landing on Mars.

That's because during that launch—and about 10 others since late 2013—SpaceX has quietly been conducting the first flight tests of a technology known as supersonic retro-propulsion—in Mars-like conditions. It did so by firing the Falcon 9's engines at an altitude of 70km down through 40km, which just happens to be where the Earth's thin upper atmosphere can act as a stand-in for the tenuous Martian atmosphere. Therefore, as the Falcon thundered toward Earth through the atmosphere at supersonic speeds and its engines fired in the opposite direction, the company might as well have been trying to land on Mars.

Read 8 remaining paragraphs | Comments

Agon AG271QX: Erster 1440p-Monitor mit 30-Hz-Freesync-Untergrenze

AOCs neuer Agon AG271QX weist eine Freesync-Frequenz von minimal 30 bis maximal 144 Hz auf, was das Spielgefühl deutlich verbessern dürfte. Das 27-Zoll-Display stellt Inhalte zwar mit WQHD-Auflösung dar, der verwendete Panel-Typ dürfte aber nicht jedem gefallen. (Display, USB 3.0)

AOCs neuer Agon AG271QX weist eine Freesync-Frequenz von minimal 30 bis maximal 144 Hz auf, was das Spielgefühl deutlich verbessern dürfte. Das 27-Zoll-Display stellt Inhalte zwar mit WQHD-Auflösung dar, der verwendete Panel-Typ dürfte aber nicht jedem gefallen. (Display, USB 3.0)

Rule 41 would make it easier for the government to carry out hacks

ACLU: Rule 41 fix has “insufficient privacy protections, transparency, or oversight.”

Privacy activists and at least one senator are up in arms over a proposed change to a section of the Federal Rule of Criminal Procedure that would allow any magistrate judge to issue warrants authorizing government-sanctioned hacking anywhere in the country.

If the proposal does go forward, it would mark a notable expansion of judicial power to sign off on "remote access" of criminal suspects’ computers. As Ars has reported previously, for more than two years now, the Department of Justice has pushed to change Rule 41 in the name of being able to thwart online criminal behavior enabled by tools like Tor.

On Thursday, the Supreme Court passed the proposed change to Rule 41 and sent it to Congress on Thursday, which will have until December 1 to modify, reject, or defer the proposal. If the House of Representatives and Senate do not pass a resolution in favor by simple majority, the revisions will become law that same day.

Read 10 remaining paragraphs | Comments

Mukbang and Hauls: The rise of super-indulgent eating and shopping videos

Watching people eat enormous amounts of food is catharsis at its best.

Source: YouTube—님슈기

A petite young woman with pale skin and short hair braces herself for her next bite of food. A plate hovers directly in front of her mouth, holding five sauce-covered, finger-sized rice cakes (they look like tteokbokki, a popular Korean street food). She lines them up side-by-side with her chopsticks and slowly guides them all into her mouth. You can literally hear every bite, every chew that breaks down the rice cakes, every sniffle she makes as she tries to stop the sinus-relieving effects of the insanely spicy foods she's eating. She's talking into a small mic to her right, with one earbud in her right ear, as people watch her consume more food than her stomach should be able to handle—but she does so with a cheery attitude and the occasional smile. These kinds of videos are called mukbang videos, and believe it or not, they attract millions of viewers.

Mukbang combines the Korean word for "eat" (muok-da) with the word for “broadcast” (bang song) and describes exactly that: online shows where people eat a ton of food on camera. There are no gimmicks involved; no crazy costumes, no nudity (as far as I've seen), and no shock value of people eating unmentionable things. Mukbang videos simply follow one person as he or she consumes an entire (and often big) meal. If your eyebrows are raised up high in disbelief and judgement right now, you're likely not alone—but eating shows are just one genre of online videos that allow audiences to live out relatively harmless fantasies about everyday activities like eating a huge meal or going on a shopping spree.

Eating for an audience, getting paid in balloons

Some mukbang eaters have become stars. The craze began in South Korea, largely on the video website AfreecaTV. Mukbang stars, often referred to as Broadcast Jockeys or BJs (not kidding), make thousands of dollars a month just by having dinner on camera. This money isn't ad- or sponsorship-based; it's donated by mukbang viewers in the form of "star balloons," a type of virtual currency that can be exchanged for Korean won.

Read 8 remaining paragraphs | Comments

Alienation im Test: Mit zwei Analogsticks gegen viele Außerirdische

Massen an Angreifern und Kämpfe mit Wumms: Alienation lässt Spieler auf der Playstation 4 mit perfekter Steuerung und schicker Grafik die Welt retten. Hinter dem Titel steckt das kleine Studio Housemarque, das schon Resogun zu großem Suchtpotenzial verholfen hatte. (Spieletest, Sony)

Massen an Angreifern und Kämpfe mit Wumms: Alienation lässt Spieler auf der Playstation 4 mit perfekter Steuerung und schicker Grafik die Welt retten. Hinter dem Titel steckt das kleine Studio Housemarque, das schon Resogun zu großem Suchtpotenzial verholfen hatte. (Spieletest, Sony)

Canadian Movie Pirates Targeted in Reverse Class Action

U.S.-based movie company Voltage Pictures has initiated fresh legal action in Canada aimed at forcing settlements from alleged pirates. Unusually, Voltage is seeking remedy via a reverse class action, demanding an injunction, damages and costs against an unspecified number of Internet users.

Source: TF, for the latest info on copyright, file-sharing, torrent sites and ANONYMOUS VPN services.

When it comes to the business model of turning piracy into profit, the name Voltage Pictures is never far from the action.

The Los Angeles-based movie outfit has tested the legal waters in several jurisdictions in an effort to extract cash settlements from alleged pirates, most recently in Australia with its movie Dallas Buyers Club.

In 2012, Voltage targeted Canadian ISP Teksavvy in a long drawn out battle to identify 2000 allegedly pirating users in order to force them to settle. Now, four years later, Voltage are back again with a new strategy.

This week the company filed an application in Federal Court, requesting certification of a reverse class action against an unquantified number of BitTorrent users who alleged shared five movies including The Cobbler, Pay the Ghost, Good Kill, Fathers and Daughters, and American Heist.

According to law professor Michael Geist, reverse class actions are very rare in Canada with only a few having been reported. The application of a reverse class action in a copyright case appears to be unprecedented.

voltage-class

“Class actions typically involve a representative plaintiff who represents many others who have suffered the same harms from the actions of the defendant. Reverse class actions feature a single plaintiff (Voltage) and multiple defendants (the alleged file sharers),” Geist explains.

According to the case documents (pdf) Voltage intends to build its case around a single and as-yet-unidentified customer of ISP Rogers. He or she is referred to as John Doe #1 and by the IP address allocated when the alleged offense took place.

“Through custom-designed software designed to track copyright infringements, and the online identities of those who commit such infringements (by way of IP address and time of infringement), the Voltage Parties have identified many thousand instances of their films (including the Works) being illegally offered for download from Individuals using the Internet,” the Voltage application reads.

“The proposed Representative Respondent, John Doe #1, as well as each member of the proposed Respondent Class….are persons whose names and identities are currently unknown to the Voltage Parties, but who have unlawfully, and without the Voltage Parties’ authorization or consent, infringed copyright in the Works, including by illegally uploading and distributing the Works for free, in full or in part, over the internet.”

rogers-doe

Interestingly, Voltage is open about the reasons behind this new strategy, noting that widespread piracy and the high cost of litigation means it has sought a cheaper way to target large numbers of infringers at once.

“The Voltage Parties seek to certify this Application as a class proceeding as a way to address these issues and obtain reasonable compensation for the significant damages that each proposed Class Member has caused, in a cost-effective and fair manner for both the Voltage Parties and the proposed Class Members,” the application reads.

Voltage accuses the Class Members of three “Unlawful Acts” including making movies available for download via BitTorrent, advertising by way of the BitTorrent protocol that a work is available for download by each member, and failing to take “reasonable steps” to ensure that downloaders were authorized by law to do so.

But the big question remains – could such a strategy work? Professor Geist has his doubts.

“One of the biggest concerns involves questions of representation for the defendant class. Before certification [of the reverse class action], the court will want assurance that the interests of the defendants will be fairly represented. But who will represent those interests? Who will pay for the legal counsel?” Geist asks.

“Unlike a plaintiff-led class action, where lawyers are often willing to invest in the case, there is no payoff at the end of this case and finding someone to represent the class will be a challenge when the only named representative is John Doe #1.”

But the problems don’t stop there. Geist says that in a certified reverse class action defendants actually have the option to opt out of the class.

“In other words, after going through the process of trying to meet the requirements for class proceedings, all the defendants will be permitted to simply walk away,” he explains.

If they do, however, other questions are raised, including whether those who opt-out will be allowed to keep their anonymity. If they are not, this could play right into Voltage’s hands.

Copyright cases are complex in their own right but this strategy from Voltage will set in motion a vigorous scratching of heads. Definitely one to watch.

Source: TF, for the latest info on copyright, file-sharing, torrent sites and ANONYMOUS VPN services.

UK-based Entroware launches 14 inch Ubuntu laptop with Intel Skylake

UK-based Entroware launches 14 inch Ubuntu laptop with Intel Skylake

Entroware is one of a handful of companies that exclusively sells computers that are pre-loaded with Linux-based operating systems. And the UK-based company has just added a new model to its lineup.

The new Entroware Orion is a 14 inch notebook with a choice of Intel Core i3, i5, or i7 Skylake processors and a starting price of £450 (about $650).

The entry-level model has 4GB of RAM, a 500GB hard drive, 802.11ac WiFi, and a 1920 x 1080 pixel display.

Continue reading UK-based Entroware launches 14 inch Ubuntu laptop with Intel Skylake at Liliputing.

UK-based Entroware launches 14 inch Ubuntu laptop with Intel Skylake

Entroware is one of a handful of companies that exclusively sells computers that are pre-loaded with Linux-based operating systems. And the UK-based company has just added a new model to its lineup.

The new Entroware Orion is a 14 inch notebook with a choice of Intel Core i3, i5, or i7 Skylake processors and a starting price of £450 (about $650).

The entry-level model has 4GB of RAM, a 500GB hard drive, 802.11ac WiFi, and a 1920 x 1080 pixel display.

Continue reading UK-based Entroware launches 14 inch Ubuntu laptop with Intel Skylake at Liliputing.

Das Internet der Menschen: “Industrie 4.0 verbannt Menschen nicht aus Werkhallen”

Mittelständler können die Chancen der Digitalisierung nur dann nutzen, wenn ihre Beschäftigten mitziehen. Denn oft scheitern Innovationen nicht an der Technik, sondern am Faktor Mensch. (Industrie 4.0)

Mittelständler können die Chancen der Digitalisierung nur dann nutzen, wenn ihre Beschäftigten mitziehen. Denn oft scheitern Innovationen nicht an der Technik, sondern am Faktor Mensch. (Industrie 4.0)

Smartphone: Honor 7 Premium ab dem 2. Mai für 350 Euro erhältlich

Die verbesserte Version des Honor 7 kommt nach Deutschland: Für 350 Euro erhalten Käufer das Premium-Modell mit mehr Speicher und schnellerer Ladefähigkeit. Ansonsten ist die Hardware identisch mit der des im August 2015 vorgestellten Modells. (Honor, Smartphone)

Die verbesserte Version des Honor 7 kommt nach Deutschland: Für 350 Euro erhalten Käufer das Premium-Modell mit mehr Speicher und schnellerer Ladefähigkeit. Ansonsten ist die Hardware identisch mit der des im August 2015 vorgestellten Modells. (Honor, Smartphone)

Snowden: Natural Born Knüller

Oliver Stone verfilmt die Story von Edward Snowden und seinen Enthüllungen. Der erste Trailer lässt nichts Gutes erwarten, ist aber immerhin für einige Lacher gut. (Edward Snowden, Film)

Oliver Stone verfilmt die Story von Edward Snowden und seinen Enthüllungen. Der erste Trailer lässt nichts Gutes erwarten, ist aber immerhin für einige Lacher gut. (Edward Snowden, Film)