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18 Sep 00:00

Proton Earth, Electron Moon

by xkcd

Proton Earth, Electron Moon

What if the Earth were made entirely of protons, and the Moon were made entirely of electrons?

—Noah Williams

This is, by far, the most destructive What-If scenario to date.

You might imagine an electron Moon orbiting a proton Earth, sort of like a gigantic hydrogen atom. On one level, it makes a kind of sense; after all, electrons orbit protons, and moons orbit planets. In fact, a planetary model of the atom was briefly popular (although it turned out not to be very useful for understanding atoms.[1]This model was (mostly) obsolete by the 1920s, but lived on in an elaborate foam-and-pipe-cleaner diorama I made in 6th grade science class.)

If you put two electrons together, they try to fly apart. Electrons are negatively charged, and the force of repulsion from this charge is about 20 orders of magnitude stronger than the force of gravity pulling them together.

If you put 1052 electrons together—to build a Moon—they push each other apart really hard. In fact, they push each other apart so hard, each electron would be shoved away with an unbelievable amount of energy.

It turns out that, for the proton Earth and electron Moon in Noah's scenario, the planetary model is even more wrong than usual. The Moon wouldn't orbit the Earth because they'd barely have a chance to influence each other;[2]I interpreted the question to mean that the Moon was replaced with a sphere of electrons the size and mass of the Moon, and ditto for the Earth. There are other interpretations, but practically speaking the end result is the same. the forces trying to blow each one apart would be far more powerful than any attractive force between the two.

If we ignore general relativity for a moment—we'll come back to it—we can calculate that the energy from these electrons all pushing on each other would be enough to accelerate all of them outward at near the speed of light.[3]But not past it; we're ignoring general relativity, but not special relativity. Accelerating particles to those speeds isn't unusual; a desktop particle accelerator can accelerate electrons to a reasonable fraction of the speed of light. But the electrons in Noah's Moon would each be carrying much, much more energy than those in a normal accelerator—orders of magnitude more than the Planck energy, which is itself many orders of magnitude larger than the energies we can reach in our largest accelerators. In other words, Noah's question takes us pretty far outside normal physics, into the highly theoretical realm of things like quantum gravity and string theory.

So I contacted Dr. Cindy Keeler, a string theorist with the Niels Bohr Institute. I explained Noah's scenario, and she was kind enough to offer some thoughts.

Dr. Keeler agreed that we shouldn't rely on any calculations that involve putting that much energy in each electron, since it's so far beyond what we're able to test in our accelerators. "I don't trust anything with energy per particle over the Planck scale. The most energy we've really observed is in cosmic rays; more than LHC by circa 106, I think, but still not close to the Planck energy. Being a string theorist, I'm tempted to say something stringy would happen—but the truth is we just don't know."

Luckily, that's not the end of the story. Remember how we're ignoring general relativity? Well, this is one of the very, very rare situations where bringing in general relativity makes a problem easier to solve.

There's a huge amount of potential energy in this scenario—the energy that we imagined would blast all these electrons apart. That energy warps space and time just like mass does.[4]If we let the energy blast the electrons apart at near the speed of light, we'd see that energy actually take the form of mass, as the electrons gained mass relativistically. That is, until something stringy happened. The amount of energy in our electron Moon, it turns out, is about equal to the total mass and energy of the entire visible universe.

An entire universe worth of mass-energy—concentrated into the space of our (relatively small) Moon—would warp space-time so strongly that it would overpower even the repulsion of those 1052 electrons.

Dr. Keeler's diagnosis: "Yup, black hole." But this is no an ordinary black hole; it's a black hole with a lot of electric charge.[5]The proton Earth, which would also be part of this black hole, would reduce the charge, but since an Earth-mass of protons has much less charge than a Moon-mass of electrons, it doesn't affect the result much. And for that, you need a different set of equations—rather than the standard Schwarzschild equations, you need the Reissner–Nordström ones.

In a sense, the Reissner-Nordström equations compare the outward force of the charge to the inward pull of gravity. If the outward push from the charge is large enough, it's possible the event horizon surrounding the black hole can disappear completely. That would leave behind an infinitely-dense object from which light can escape—a naked singularity.

Once you have a naked singularity, physics starts breaking down in very big ways. Quantum mechanics and general relativity give absurd answers, and they're not even the same absurd answers. Some people have argued that the laws of physics don't allow that kind of situation to arise. As Dr. Keeler put it, "Nobody likes a naked singularity."

In the case of an electron Moon, the energy from all those electrons pushing on each other is so large that the gravitational pull wins, and our singularity would form a normal black hole. At least, "normal" in some sense; it would be a black hole as massive as the observable universe.[6]A black hole with the mass of the observable universe would have a radius of 13.8 billion light-years, and the universe is 13.8 billion years old, which has led some people to say "the Universe is a black hole!" (It's not.)

Would this black hole cause the universe to collapse? Hard to say. The answer depends on what the deal with dark energy is, and nobody knows what the deal with dark energy is.

But for now, at least, nearby galaxies would be safe. Since the gravitational influence of the black hole can only expand outward at the speed of light, much of the universe around us would remain blissfully unaware of our ridiculous electron experiment.

10 Aug 14:57

Benedetta Berti: The surprising way groups like ISIS stay in power

by (TED Conferences LLC)
ISIS, Hezbollah, Hamas. These three very different groups are known for violence — but that’s only a portion of what they do, says policy analyst Benedetta Berti. They also attempt to win over populations with social work: setting up schools and hospitals, offering safety and security, and filling the gaps left by weak governments. Understanding the broader work of these groups suggests new strategies for ending the violence.
09 Jul 15:02

Johann Hari: Everything you think you know about addiction is wrong

by (TED Conferences LLC)
What really causes addiction -- to everything from cocaine to smart-phones? And how can we overcome it? Johann Hari has seen our current methods fail firsthand, as he has watched loved ones struggle to manage their addictions. He started to wonder why we treat addicts the way we do -- and if there might be a better way. As he shares in this deeply personal talk, his questions took him around the world, and unearthed some surprising and hopeful ways of thinking about an age-old problem.
31 Jul 14:48

Ebola vaccine trial in Guinea suggests it’s 100% effective

by John Timmer

Today, The Lancet released the results of a large field trial of a vaccine against Ebola, and the results are more than promising. Within the limitations of the study, the vaccine appears to be 100 percent effective. The results were so good that the trial itself has been stopped, and the vaccine is now being used to control the spread of the disease.

The vaccine is made by the pharmaceutical giant Merck, which licensed it from the Public Health Agency of Canada. It was developed through what has become a fairly standard approach. A harmless virus (vesicular stomatitis virus, or VSV) was engineered so that it also carried the gene for Ebola's major surface protein, simply called glycoprotein. When people receive the vaccination, a harmless infection follows, which triggers an immune response. This response targets not only VSV but the Ebola protein as well. Ideally, once the infection is eliminated, the immune system is able to recognize both VSV and Ebola.

The trial, performed in southern Guinea, ran from April through July 20th of this year (the analysis, paper writing, and peer review must have proceeded at a staggering pace). It used what is called a "ring" design: once an infected individual was identified, a ring of potentially exposed individuals around them was identified. These individuals lived with the infected one, had contact with them after symptoms appeared, or came in contact with their clothes, bedding, or bodily fluids.

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27 Jul 03:57

Control light with magnets and olive oil?! (Faraday effect)

by Ben Krasnow
See how olive oil and magnets can control the brightness of light via the Faraday effect.
Get your iron-on Applied Science logo here:

Measure Verdet constant of olive oil:

Plastic film polarizers:

Faraday effect:

26 Jun 15:14

Chris Urmson: How a driverless car sees the road

by (TED Conferences LLC)
Statistically, the least reliable part of the car is ... the driver. Chris Urmson heads up Google's driverless car program, one of several efforts to remove humans from the driver's seat. He talks about where his program is right now, and shares fascinating footage that shows how the car sees the road and makes autonomous decisions about what to do next.
08 Jun 13:44

Airbus unveils Adeline, its clever answer to SpaceX’s reusable rockets

by Sebastian Anthony

Airbus, the European aerospace giant, has unveiled Adeline: its answer to SpaceX's reusable space launch ambitions. Adeline, which stands for Advanced Expendable Launcher with Innovative engine Economy, uses a rather novel solution to get the first stage engines back in one piece: it has wings and propellers that allow the engines to follow a ballistic trajectory, and then fly like an airplane back to a runway.

All current space launch systems—SpaceX's Falcon 9, Airbus' Ariane 5, Russia's Soyuz, etc.—are expendable. During every single rocket launch, the rocket engines and fuel tanks fall back to Earth, usually into the ocean, never to be used again. Rocket engines are not cheap: Orbital Sciences paid around $1 billion (£600 million) to Roscosmos for 20 RD-180 rocket engines.

This is why companies like SpaceX, and now Airbus, are developing technologies that can bring the rocket engines back to the launchpad, so that they can be reused. SpaceX, which is currently leading the charge in this area, says that it wants to reuse rocket engines and fuel tanks within "single-digit hours" of their return. Depending on who you talk to, and the configuration of the rocket, current space launch prices are somewhere around $250-500 million; with reusable components, SpaceX wants to get that price down below $100 million.

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21 May 14:30

Saturday Morning Breakfast Cereal - Descent


Hovertext: Emails of theological complaint in 3... 2... 1...

New comic!
Today's News:

BAHFest 2015 submissions are now open. We are doing shows in Seattle, San Francisco, and MIT.

13 May 04:00


I would say time is definitely one of my top three favorite dimensions.
07 May 15:03

Tal Danino: Programming bacteria to detect cancer (and maybe treat it)

by TEDTalks
Liver cancer is one of the most difficult cancers to detect, but synthetic biologist Tal Danino had a left-field thought: What if we could create a probiotic, edible bacteria that was "programmed" to find liver tumors? His insight exploits something we're just beginning to understand about bacteria: their power of quorum sensing, or doing something together once they reach critical mass. Danino, a TED Fellow, explains how quorum sensing works -- and how clever bacteria working together could someday change cancer treatment.
06 May 15:00

Saturday Morning Breakfast Cereal - The Past


Hovertext: Can we make bio-history a thing? Can we? Pleaaaaase?

New comic!
Today's News:
05 May 15:15

Abe Davis: New video technology that reveals an object's hidden properties

by TEDTalks
Subtle motion happens around us all the time, including tiny vibrations caused by sound. New technology shows that we can pick up on these vibrations and actually re-create sound and conversations just from a video of a seemingly still object. But now Abe Davis takes it one step further: Watch him demo software that lets anyone interact with these hidden properties, just from a simple video.
04 May 13:59

Pamela Ronald: The case for engineering our food

by TEDTalks
Pamela Ronald studies the genes that make plants more resistant to disease and stress. In an eye-opening talk, she describes her decade-long quest to isolate a gene that allows rice to survive prolonged flooding. She shows how the genetic improvement of seeds saved the Hawaiian papaya crop in the 1990s — and makes the case that modern genetics is sometimes the most effective method to advance sustainable agriculture and enhance food security for our planet’s growing population.
27 Apr 18:42

Audi samples diesel made directly from carbon dioxide

by John Timmer

Last week, Audi announced that it had filled the tank of one of its vehicles with a synthetic diesel fuel made with a high-temperature process that starts with only water and carbon dioxide. While there's a substantial energy input involved in generating the fuel, the company expects that excess renewable energy will eventually be able to supply that energy cheaply.

The diesel was produced through a process called high-temperature electrolysis, in which steam is heated before electricity is used to split the water vapor into hydrogen and oxygen. The high temperatures make this process more efficient and, as Audi notes, the waste heat can be used for other purposes, further boosting the efficiency. The hydrogen can then be combined with carbon dioxide in a process that produces liquid hydrocarbons (these reactions require high temperatures and pressures as well).

The current production facility (partly supported by Germany's Federal Ministry of Education and Research) uses CO2 supplied by a biogas facility, supplemented by a carbon capture facility that pulls the gas from the atmosphere.

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28 Apr 18:27

The backwards bike will break your brain

by Jason Kottke

Do you think you could ride a bicycle that steers backwards...aka it turns left when you turn right and vice versa? It sounds easy but years of normal bike riding experience makes it almost impossible. Destin Sandlin of Smarter Everyday taught himself how to ride the backwards-steering bike; it took months. Then he tried riding a normal bicycle again...

Loved this video...great stuff. (via ★interesting)

Tags: cycling   Destin Sandlin   science   video
28 Apr 15:12

Greg Gage: How to control someone else's arm with your brain

by TEDTalks
Greg Gage is on a mission to make brain science accessible to all. In this fun, kind of creepy demo, the neuroscientist and TED Senior Fellow uses a simple, inexpensive DIY kit to take away the free will of an audience member. It’s not a parlor trick; it actually works. You have to see it to believe it.
27 Apr 14:30

Saturday Morning Breakfast Cereal - On the Topic of Early Birds and Worms


Hovertext: The early human gets to keep its job!

New comic!
Today's News:
20 Apr 15:16

Gary Haugen: The hidden reason for poverty the world needs to address now

by TEDTalks
Collective compassion has meant an overall decrease in global poverty since the 1980s, says civil rights lawyer Gary Haugen. Yet for all the world's aid money, there's a pervasive hidden problem keeping poverty alive. Haugen reveals the dark underlying cause we must recognize and act on now.
20 Apr 01:00

New evidence that dark matter could be self-interacting

by Xaq Rzetelny

A new study examined the galaxy cluster Abell 3827 and found indications that dark matter could be self-interacting. If confirmed, this would mark a significant step forward in the ongoing quest to understand the substance that helps structure the Universe.

The team used the MUSE instrument on the Very Large Telescope (VLT) along with images from the Hubble Space Telescope to map out the cluster. Because large masses such as galaxies and galaxy clusters bend the paths of light, they act as lenses, a process called (surprise!) gravitational lensing. The team made use of the complex web of lensing effects throughout the cluster to map out the dark matter there. The presence of strong gravitational lensing is fortunate for the study, as the dark matter would be invisible without it.

Dark matter and tidal stripping

Every galaxy sits within a roughly spherical blob, called a halo, of dark matter. That halo makes up most of the galaxy’s mass. In normal situations this configuration is stable, but when multiple galaxies interact with each other, a process called tidal stripping can take place, in which gravity from one galaxy pulls in material from another. This can separate the dark matter from the stars in the galaxy.

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15 Apr 21:22

SpaceX releases film of Falcon’s crash landing

by John Timmer

SpaceX's trial-and-error process of learning to land one of its Falcon main stages continued this week. After successfully sending a Dragon capsule toward a rendezvous with the International Space Station, the Falcon reversed course, fired its thrusters, and made its way back into the atmosphere over the Atlantic. After a controlled plunge through the air, it attempted to land on a barge named "Just Read the Instructions." This time, conditions enabled the company to have had an aircraft in the area to film the results.

It fell down and went "boom."

The video above shows the Falcon dropping at a rather healthy clip until it's quite close to the barge. At that point, the rocket's electronics appear to try to adjust its location; the craft tips while firing its main engines at a much higher level. This appears to be enough to set it down on the barge, but now tilting in the opposite direction. Thrusters at the top of the rocket attempt to correct the tilt but can't; it slowly falls over until it explodes while nearly horizontal.

SpaceX originally posted video footage of the crash landing, but it was taken down and marked private on YouTube on Wednesday afternoon.

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08 Apr 15:00

Dan Ariely: How equal do we want the world to be? You'd be surprised

by TEDTalks
The news of society's growing inequality makes all of us uneasy. But why? Dan Ariely reveals some new, surprising research on what we think is fair, as far as how wealth is distributed over societies ... then shows how it stacks up to the real stats.
07 Apr 15:53

Eduardo Sáenz de Cabezón: Math is forever

by TEDTalks
With humor and charm, mathematician Eduardo Sáenz de Cabezón answers a question that’s wracked the brains of bored students the world over: What is math for? He shows the beauty of math as the backbone of science — and shows that theorems, not diamonds, are forever. In Spanish, with English subtitles.
06 Apr 11:00

An unpowered exoskeleton decreases the energy required for walking

by Shalini Saxena

The ability to walk upright is a defining characteristic of humans, one that emerged through a long evolutionary history. It's not just a matter of the right bones; our muscular, skeletal, and neural systems have evolved to enable our coordinated movements. The nerves allow us to develop a gait that is optimized to minimize the amount of energy necessary by modulating aspects of our movement such as our step length or arm motions.

Even with all that optimization, walking can be tiring; in fact, people expend more energy walking than any other daily activity. As we age, walking often becomes even more difficult. For decades researchers have explored ways to mitigate the energy cost associated with walking—studies that are typically aimed at helping those who are weaker or disabled.

Recently, scientists and engineers started to look at this issue from a new perspective; they questioned whether the human gait is as efficient as it can be. This interdisciplinary research team developed a device that behaves as an unpowered exoskeleton.

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27 Mar 15:10

Dame Stephanie Shirley: Why do ambitious women have flat heads?

by TEDTalks
Dame Stephanie Shirley is the most successful tech entrepreneur you never heard of. In the 1960s, she founded a pioneering all-woman software company in the UK, which was ultimately valued at $3 billion, making millionaires of 70 of her team members. In this frank and often hilarious talk, she explains why she went by “Steve,” how she upended the expectations of the time, and shares some sure-fire ways to identify ambitious women …
01 Apr 04:00


18 Mar 16:10

David Eagleman: Can we create new senses for humans?

by TEDTalks
As humans, we can perceive less than a ten-trillionth of all light waves. “Our experience of reality,” says neuroscientist David Eagleman, “is constrained by our biology.” He wants to change that. His research into our brain processes has led him to create new interfaces -- such as a sensory vest -- to take in previously unseen information about the world around us.
01 Mar 18:00

NASA puzzled by strange shiny spots on Ceres


NASA researchers have spotted something weird on the surface of the dwarf planet Ceres—a pair of mysterious shiny patches that reflect sunlight.

The bright spots were imaged by the Dawn spacecraft, which is whizzing through space on its way to Ceres, and should arrive in orbit on March 6. It'll be the first spacecraft to study a protoplanet at such close range.

"As we slowly approach the stage, our eyes transfixed on Ceres and her planetary dance, we find she has beguiled us but left us none the wiser," said Chris Russell, principal investigator of the Dawn mission. "We expected to be surprised; we did not expect to be this puzzled."

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03 Mar 11:00

Hollywood should be very afraid of Popcorn Time, the “Netflix for piracy”

by John McDuling
Popcorn Time US Netflix piracy

In January Netflix, the online video streaming site, used its quarterly letter to shareholders (pdf) to take aim at a rival. Not premium pay TV channel HBO, with which it is locked in an increasingly bitter battle for the best shows and movies; nor cable provider Comcast, with which it has squabbled over the future of the internet. Rather, Netflix’s missive called out a new adversary. “Piracy continues to be one of our biggest competitors,” it reads. “Popcorn Time’s sharp rise relative to Netflix and HBO in the Netherlands, for example, is sobering.”

Popcorn Time is one of the most fascinating stories on the internet at the moment. It is a platform that allows people to access vast swathes of video content without paying for it, but with a clean, legitimate-looking (and somewhat Netflix-y) interface. In other words, it’s not a shady looking portal that makes you feel dirty for using it.

Tap image to zoom
Popcorn Time’s interface looks a lot like that of any commercial streaming service.

By some estimates, Popcorn Time’s user base in the Netherlands rivals that of Netflix. It also appears to be used quite a lot in the US. Bloomberg reported last week that usage of the service in the US more than trebled between July 2014 and January 2015, and it now accounts for one ninth of all torrent traffic in the country. Its rise reflects a sobering reality for the entertainment industry. Despite the widespread success of internet-based content smorgasbords with simple pricing models like Netflix, piracy endures. And TV and movie piracy, at least, is almost impossible to wipe out.

Why there’s still demand for video piracy

Unlike in music, where services like Spotify give you a single subscription for almost any track you might want, there is no one-stop shop for video. That’s partly because of the way licensing works: Movies are released at different times for theaters, video-on-demand, and then cable TV or streaming services. It’s partly also because, unlike in music, video streaming services have chosen to compete by each offering their own exclusive content rather than trying to have the most complete menu. As a result, the best video remains spread out across a confusing phalanx of outlets.

Tap image to zoom

Popcorn Time, according to people who use it, lets you access just about everything on the internet. It operates using the BitTorrent protocol, a file-sharing method that breaks large files into small pieces, which are shared out across the network of its users’ computers. When a user wants to download a file, her computer assembles it from pieces stored on other people’s computers across the network. This makes it easier to download large files, and harder to pinpoint who is responsible for uploading them, and thus almost impossible to eliminate. (The main difference between Popcorn Time and traditional BitTorrent is that when you choose a file to watch, BitTorrent assembles it first and stores it on your computer’s hard drive; PopcornTime just streams it as its components come in).

The site emerged seemingly out of nowhere last year. The people claiming to be its creators wrote that it began as a challenge by “a group of geeks from Buenos Aires who wanted to see if they could create a better way to watch movies.” By March last year they had abandoned it because, they said, they “need[ed] to move on with our lives.”

Yet others quickly took up the baton. There are multiple Popcorn Time sites now; is the biggest, it has the most likes on Facebook (it passed 100,000 recently) and appears at the top of Google searches. It has a desktop client for both Mac and Windows computers,  plus a Linux version and an Android app.

How Popcorn Time runs on no money

So who is behind this slick operation? Last month I spoke to a person who claims to be Popcorn Time’s official spokesperson, a 20-something from Ontario, called Robert “Red” English. He said that there are about 20 people—programmers and designers—scattered across the planet, working on Popcorn Time in their free time. It is an open-source project, so anyone can submit changes to the code, add features, and fix bugs. If he and the rest of the team think a contributor is helping, they will ask him or her to join on a more formal basis. Contributors change frequently.

 “We are a community… I don’t think it will be ever turned into a proper business.” Popcorn Time has no funding—it’s run out of the pockets of the small community behind it—and no business model, English says. Unlike other platforms used for piracy it doesn’t even carry advertising.”We are a community and we are not really driven by the money of it,” he says. “I don’t think it will be ever turned into a proper business.” In other words, there are no plans to emulate Napster or BitTorrent and seek legitimacy. Napster, the first file sharing site to gain prominence, had a string of legitimate business owners after being shut down, including German Media conglomerate Bertelsmann, US retailer Best Buy, and is now part of streaming music provider Rhapsody. BitTorrent (the company, not the protocol) is backed by venture capital funds including Accel Partners.

So if there’s no money in it, why do the people behind Popcorn Time bother? Fun mainly, English says. “A lot of the project is about showing… other companies like Netflix that having the content that’s currently on air—the new stuff, not last season—that’s what drives people to watch. It’s a way of showing the media that you can do better.” (No doubt the fact that this gives them and others the ability to watch anything they want for free is also a motivating factor.)

Why it may be safe from lawsuits

The team behind the original Popcorn Time insisted they had checked “Four Times” with lawyers that the service was legal. English says his team has been in contact with lawyers, “but for the most part there is not a lot we need to speak to them about.” Popcorn Time does not control or manage any of the content that is accessible through the service; it just provides the method of access. “We are not selling you a product, we are not ripping you off, we are just giving something out for free,” he says.

The video and music industry see it differently, of course. There have been countless lawsuits against BitTorrent services and their users. Some, notably in Sweden, have been successful, even ending up in convictions. But in the US, as Mother Jones reported a year ago, judges have been getting more skeptical about the evidence copyright holders present. Basically, an IP address—a number that identifies each computer connected to a network—is no longer considered such a reliable indicator of who has been actually downloading or uploading files.

 “If it’s used to infringe copyright, that may itself be a violation, but that doesn’t make the tool illegal.” The Motion Picture Association of America (MPAA), a trade association for Hollywood studios which has been involved in many lawsuits against copyright offenders, declined to comment on Popcorn Time to Quartz.  So did Netflix. But Parker Higgins from the Electronic Frontier Foundation, a consumer digital rights group, argues that Popcorn Time is no more illegal than photocopiers or videocassette recorders. The US Supreme Court ruled in 1984 that Sony’s Betamax video recorder wasn’t illegal because it was capable of “significant non-infringing use.” Similarly, Popcorn Time can be used to navigate vast swathes of non-copyrighted material, Higgins explains. “If it’s used to infringe copyright, that may itself be a violation, but that doesn’t make the tool illegal.”

The Betamax defense isn’t iron-clad. At least two file-sharing sites that tried to use it—Grokster and Streamcast—lost, because the court ruled that they actively encouraged piracy. But that case also marked out a territory within which file-sharing is legal, making it easier for sites like Popcorn Time to stay (just) on the right side of the law.

Why Wall Street is starting to worry

English said the team behind Popcorn Time is aware that the platform is being used extensively in places like the Netherlands and “had a general idea that people were beginning to talk about us.” But what he did not realize it was stating to get noticed on Wall Street.

Investment analysts are concerned about its impact on Netflix and big entertainment companies that produce and own content. BTIG analyst Rich Greenfield for one, has repeatedly warned that “Hollywood should be very afraid” of apps like Popcorn Time, which he says could threaten the financial strength of the entertainment business. “The reality is TV everywhere [i.e., online services from US cable TV providers and channels such as HBO Go] has gone nowhere while the piracy sites such as Popcorn Time have continued to innovate,” Greenfield says in an email.

Popcorn Time does not track usage and is not particularly concerned about the imitators it has spawned. “In general we don’t care,” English says, “but when it comes to the ones that install viruses on your computer it pisses us off because it ruins a good name.” To think that a group of earnest freelancers working in their spare time could pose challenge to Netflix, a $30 billion company, not to mention media giants that have been around for decades, is staggering. But as long as the big TV and movie studios continue to limit their content to certain online platforms, there’ll be demand for a service that provides it all—especially if that service is also free.

26 Feb 15:58

Ben Wellington: How we found the worst place to park in New York City -- using big data

by TEDTalks
City agencies have access to a wealth of data and statistics reflecting every part of urban life. But as data analyst Ben Wellington suggests in this entertaining talk, sometimes they just don't know what to do with it. He shows how a combination of unexpected questions and smart data crunching can produce strangely useful insights, and shares tips on how to release large sets of data so that anyone can use them.
04 Mar 00:06

03/02/15 PHD comic: 'Giant Leap'

Piled Higher & Deeper by Jorge Cham
Click on the title below to read the comic
title: "Giant Leap" - originally published 3/2/2015

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