A Few Things You Should Know About the "Darkest Material Ever Made"

The color Vantablack has recently taken the world by storm after artist Anish Kapoor announced that he has acquired exclusive rights to the use of this color. According to sources and scientists, it is the blackest substance known to man and absorbs as much as 99.6% of light .   Kapoor’s trippy application of Vantablack As questions swirl around about the ethical implications of someone owning such a material, I wanted to dig a little bit more into the details of this fascinating pigment discovery. First off: how is Vantablack made and why is it ? As you probably know, pigments originally came from a large variety of organic sources. For example, blue often derives from lapis rock while the oldest source of bright green pigment is malachite , which is found in copper ore deposits.  Lapis lazuli rock, an organic pigment source.  Vantablack on the other hand is grown in labs and is actually made from carbon nanotubes—yes, tubes . This “forest”  of highly condensed tubes, grown on the surface of aluminum, are what cause the dark pigment as well as helping to explain exactly why it is so dark. So why IS Vantablack so incredibly dark?  In order to understand exactly how dark this material is, we have to go back to this idea of carbon nanotubes. Growing carbon nanotubes is not a new technology, and have been proposed for potential use in situations like cleaning oil spills and boosting solar energy storage due to its amazing structural makeup.  A visualization of the material; to give you an idea of scale, this material is almost 50, 000 times smaller than a human hair .  The material is 200 times stronger than steel, 1000 times more conductive than copper, and almost half the density of aluminum (an important point that we’ll revisit). According to the inventors of Vantablack, Surrey Nanosystems , when light interacts with this incredibly low density material it “is rapidly absorbed as it ‘bounces’ from tube to tube and simply cannot escape as the tubes are so long in relation to their diameter and the space between them. The near total lack of reflectance creates an almost perfect black surface.” Why in the world was Vantablack made? To put it simply, Vantablack was originally made for NASA—not only for its color, but also the structural integrity of the pigment. The pigment was applied to telescope components to absorb unwanted light from entering a telescope’s incredibly sensitive light detectors, but also proved “to withstand launch shock, staging and long-term vibration, making it suitable for coating internal components .” Vantablack is seen on the far left on a component for the International Space Station. So given all of this information, what do you guys think of this phenomenon going on right now surrounding this material: should someone be able to gain exclusive rights to a color with this much potential? What are some other uses you see for a pigment like this in the world? Also anyone who knows about this material and has more information to contribute, we’d love to hear in the comments below.

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A Few Things You Should Know About the "Darkest Material Ever Made"

This Net-Firing Cannon Can Take Down a Drone Without Destroying It

Behold SkyWall100 , the latest in a string of new tools to neutralize problematic drones. This shoulder-mounted cannon can capture a drone with a net—and then land it safely with a parachute. Read more…

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This Net-Firing Cannon Can Take Down a Drone Without Destroying It

Everything We Know About The Tesla Model 3 

The entry-level Tesla Model 3 sedan is coming this month, and it’s not just supposed to transform the future of the company, it’s supposed to transform the electric car into a bit player for the sybaritic and the techno-weirdos into a clean vehicle for the masses. Here’s everything we know. Read more…

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Everything We Know About The Tesla Model 3 

Whole lotta onions: Number of Tor hidden sites spikes—along with paranoia

Two sudden leaps in the number of advertised “hidden services” on Tor have led to rampant speculation about the cause of them. (credit: The Tor Project ) In recent weeks, the number of “hidden services”—usually Web servers and other Internet services accessible by a “.onion” address on the Tor anonymizing network—has risen dramatically. After experiencing an earlier spike in February, the number of hidden services tracked by Tor spiked to 114,000 onion addresses on March 1. They then dropped just as quickly, falling to just below 70,000 hidden services seen by Tor on Thursday—still twice the number that Tor had held steady at for most of 2015. “We don’t know what’s causing this,” said Kate Krauss, the director of communications and public policy for the Tor Project. “But it’s not difficult for even one person—a researcher, for instance—to create a lot of new onion addresses—which is not the same as actual websites or services. In fact, we want the process of creating onion addresses to be as easy as possible to encourage the creation of more onion services. These spikes are typically temporary—and as you see from the chart, this one is already going away.” Still, there has never been this sort of wild gyration in their number in recent times—or at least as far back as the Tor Project has kept metric data. So what caused the sudden near-tripling of the size of Tor’s hidden Web and its rapid contraction? Based on a deeper look at Tor’s metrics and discussions with both Tor developers and security experts, the huge spike in the “size” of the hidden Web within Tor was likely caused by a perfect storm of coincidences: major Internet censorship events in at least two countries, the relatively rapid adoption of a new messaging tool, a malware explosion, and ongoing attempts to undermine the privacy of the network. Read 14 remaining paragraphs | Comments

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Whole lotta onions: Number of Tor hidden sites spikes—along with paranoia

The Coolest Attractions Coming to Shanghai Disneyland

The new Disneyland in Shanghai doesn’t open until June 16th, but we’ve got a new drone’s-eye view of the progress at the new park. It will be the first Disney park in mainland China, and we can expect three things from it: It’s going to be busy; it’s going to have some cool new rides; and it’s going to make Disney a ton of money. Read more…

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The Coolest Attractions Coming to Shanghai Disneyland

MAME Released Under OSI-Compliant, FSF-Approved License

New submitter _merlin writes: MAMEdev just announced that MAME (formerly Multiple Arcade Machine Emulator) is now entirely available under OSI-comliant, FSF-approved licenses. The project as a whole is available under the GNU General Public License, version 2 (GPL-2.0), while individual source files are available under BSD-3-Clause, LGPL-2.1 or GPL-2.0 (all compatible with GPL-2.0). Over 90% of the code, including core functionality, is available under the BSD-3-Clause license. Read more of this story at Slashdot.

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MAME Released Under OSI-Compliant, FSF-Approved License

Google Building a 100kW Transmitter at Spaceport America

szczys writes: Google is building a 100kW transmitter at Spaceport America. As is becoming the regular source of early info, this comes via an FCC filing in which Google has asked the agency to keep the project secret. The signal strength itself isn’t [groundbreaking] until you learn this is a directional antenna. Some of the most powerful FM radio transmitters get to 100kW, but those are omnidirectional. This is a highly focused directional antenna and that makes it sound like a big piece of Google’s hushed Broadband Drone program. Read more of this story at Slashdot.

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Google Building a 100kW Transmitter at Spaceport America

Bitcoin’s Nightmare Scenario Has Come To Pass

HughPickens.com writes: Ben Popper writes at The Verge that bitcoin’s nightmare scenario has come to pass as the bitcoin network reached its capacity, causing transactions around the world to be massively delayed, and in some cases to fail completely. The average time to confirm a transaction has ballooned from 10 minutes to 43 minutes. Users are left confused and shops that once accepted Bitcoin are dropping out. For those who want the Bitcoin system to continue to grow and thrive, this is troubling. Merchants can’t rely on digital transactions that can take minutes or hours to validate. A number of prominent voices in the Bitcoin community have been warning over the past year that the system needed to make fundamental changes to its core software code to avoid being overwhelmed by the continued growth of Bitcoin transactions. A schism has developed between the team in charge of the original codebase for Bitcoin, known as Core, and a rival faction pushing its own version of that open source code with a block size increase added in, known as Classic. “Many in the US Bitcoin community had hoped that hitting this crisis point — a network maxed out, transactions faltering — would result in closure, with miners quickly moving to adopt whichever chain proved more valuable to their economic interests, ” says Popper. “But so far the debate is dragging on without one side claiming a clear victory, leaving tens of thousands of consumer transactions stranded in limbo.” Read more of this story at Slashdot.

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Bitcoin’s Nightmare Scenario Has Come To Pass

Frank Miller’s Batman Was ‘Too Nice’ for Darren Aronofsky

Later this month, we’ll see Batman v. Superman , loosely based on Frank Miller’s Batman comics. But we almost got a Batman film from Miller and Darren Aronofsky, based on Batman: Year One . In an interview with the Hollywood Reporter , Miller explained what that looked like, and it was very, very strange. Read more…

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Frank Miller’s Batman Was ‘Too Nice’ for Darren Aronofsky