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Archivo del Autor: Belen De Leon

Tesla’s Model 3 Is Now Selling for $35,000

Elon Musk’s automaker is also introducing a slightly more capable version of the car, moving its sales process online, and shuttering many of its stores.
Source: Wired

The $35,000 Tesla Model 3 is finally available to order – Roadshow

Elon Musk’s entry-level Tesla offers an estimated 220 miles of range.
Source: CNET

Scientists find first evidence of huge Mars underground water system – CNET

The first evidence for a planet-wide underground water system will help aid future missions in our hunt for life on Mars.
Source: CNET

Now Amazon Is Nixing a Seattle Expansion, Too

The Seattle City Council last year repealed a per-employee tax after Amazon threatened not to occupy a new office tower. Now, Amazon won’t occupy the tower anyway.
Source: Wired

Tesla closing retail stores in shift to online-only sales strategy

Tesla is moving all of its sales online, a dramatic shift in its sales strategy that will result in the closure of stores and some layoffs as the automaker looks for ways to reduce costs in order to bring a cheaper Model 3 to market.

Tesla CEO Elon Musk didn’t say how many stores would close. He noted that some stores would remain and turn into information centers and showrooms. The company didn’t provide specific numbers on how many retail employees might be affected.

“We will be closing some stores and that will be some reduction in head count as a result; there’s no question about that,” Musk said. “There’s no other way for us to achieve the savings required to provide this car and be financially sustainable. I wish there was another but unfortunately, it will entail reduction in workforce on the retail side, no way around it.”

The shift to online-only sales, plus other cost efficiencies, allowed the company to lower all vehicle prices by about 6% on average and finally offer $35,000 Model 3.

Meanwhile, Tesla plans to hire more service technicians, or mechanics, Musk noted during a call with reporters Thursday. Tesla didn’t provide details on how many mechanics it plans to hire.

In order to mitigate the need for a test ride, Tesla is extending the return policies on its vehicles. New customers will be able own a car for a week and driver for 1,000 miles and still return it for a full refund if they don’t like it, Musk said. 

“That’s why we’re going to essentially allow somebody to use the car for free for a week, and return it for a full refund,” Musk said. “And we’re going to make it super easy to get a refund like one click refund.”

Tesla announced Thursday that it was offering a $35,000 version of the Model 3, that will have a 220 miles of range and be able to reach a top speed of 130 miles per hour. 

The company also said it’s introducing a Model 3 Standard Range Plus version, which offers 240 miles of range, a top speed of 140 mph, and 0-60mph acceleration of 5.3 seconds as well as most premium interior features at $37,000 before incentives.


Source: TechCrunch

Cherry lets startup employees choose their own office perks

Forget the office ping pong table, Cherry, a startup in Y Combinator’s latest batch, wants to let employees take company perks into their own hands.

Cherry co-founders (and sisters) Gillian and Emily O’Brien say their Slackbot marketplace will let employees completely personalize the lifestyle benefits they get from their company, allowing them to set up a Spotify Premium account or buy a subscription to Classpass instead of just taking what perks their company dishes out at face value.

Companies will pay huge amounts of money to deliver sweeping employee memberships or build a company gym even if there are only a few people interested in using them. Cherry could potentially eliminate a lot of wasted efforts while still managing to  potential recruits. The available subscriptions run the gamut from things like Classpass, Netflix, Spotify, Peloton, Postmates and other services that allow employees to feel like they’re getting.

A sampling of Cherry’s 40+ available services.

“There’s money that [companies] are wasting that they could save by just giving everyone this budget and letting them choose for themselves,” CEO Gillian O’Brien told TechCrunch. “We also feel [our service] really stands out on an offer — it could be a big differentiator in terms of hiring or just having that on a company’s careers page.”

Users set up their own subscription accounts; Cherry handles paying for employee perks via gift codes and lets them make changes to their cyber-benefits whenever they’d like.

Cherry is charging startups $149 per month to manage the first 10 employees with $15 per person. You can designate as little as $15 per month per employee, but given that it costs that much per employee to even use the service, it’s more likely that customers will be throwing down a bit more.

For now, all of this takes place in Slack via a Cherry chatbot, you can pick from available options by tapping buttons; it’s all pretty lightweight and simple.

The service seems like something that would be especially attractive to remote teams, giving employees who aren’t able to stop in for a free lunch or get a monthly massage the ability to treat themselves on company dime. This also enables smaller startups to just throw money at an attractive employee perks solution without having to add more responsibilities to someone’s job.

Cherry’s platform is live now, you can sign-up and check things out on their website.


Source: TechCrunch

Facebook admits 18% of Research spyware users were teens, not

Facebook has changed its story after initially trying to downplay how it targeted teens with its Research program that a TechCrunch investigation revealed was paying them gift cards to monitor all their mobile app usage and browser traffic. “Less than 5 percent of the people who chose to participate in this market research program were teens” a Facebook spokesperson told TechCrunch and many other news outlets in a damage control effort 7 hours after we published our report on January 29th. At the time,  Facebook claimed that it had removed its Research app from iOS. The next morning we learned that wasn’t true, as Apple had already forcibly blocked the Facebook Research app for violating its Enterprise Certificate program that supposed to reserved for companies distributing internal apps to employees.

It turns out that wasn’t the only time Facebook deceived the public in its response regarding the Research VPN scandal. TechCrunch has attained Facebook’s unpublished February 21st response to questions about the Research program in a letter from Senator Mark Warner, who wrote to CEO Mark Zuckerberg that “Facebook’s apparent lack of full transparency with users – particularly in the context of ‘research’ efforts – has been a source of frustration for me.”

In the response from Facebook’s VP of US public policy Kevin Martin, the company admits that (emphasis ours) “At the time we ended the Facebook Research App on Apple’s iOS platform, less than 5 percent of the people sharing data with us through this program were teens. Analysis shows that number is about 18 percent when you look at the complete lifetime of the program, and also add people who had become inactive and uninstalled the app.” So 18 percent of research testers were teens. It was only less than 5 percent when Facebook got caught. Given users age 13 to 35 were eligible for Facebook’s Research program, 13 to 18 year olds made of 22 percent of the age range. That means Facebook clearly wasn’t trying to minimize teen involvement, nor were they just a tiny fraction of users.

WASHINGTON, DC – APRIL 10: Facebook co-founder, Chairman and CEO Mark Zuckerberg testifies before a combined Senate Judiciary and Commerce committee hearing in the Hart Senate Office Building on Capitol Hill April 10, 2018 in Washington, DC. Zuckerberg, 33, was called to testify after it was reported that 87 million Facebook users had their personal information harvested by Cambridge Analytica, a British political consulting firm linked to the Trump campaign. (Photo by Chip Somodevilla/Getty Images)

Warner asked Facebook “Do you think any use reasonable understood Facebook was using this data for commercial purposes includingto track competitors?” Facebook response indicates it never told Research users anything about tracking “competitors”, and instead dances around the question. Facebook says the registration process told users the data would help the company “understand how people use mobile apps,” “improve . . . services,” and “introduce new features for millions of people around the world.”

Facebook had also told reporters on January 29th regarding teens’ participation, “All of them with signed parental consent forms.” Yet in its response to Senator Warner, Facebook admitted that “Potential participants were required to confirm that they were over 18 or provide other evidence of parental consent, though the vendors did not require a signed parental consent form for teen users.” In some cases, underage users merely had to check a box to claim they had parental consent, and there was no verification of users’ ages or that their parents actually approved.

So to quickly recap:

Facebook targeted teens with ads on Instagram and Snapchat to join the Research program without revealing its involvement

The contradictions between Facebook’s initial response to reporters and what it told Warner, who has the power to pursue regulation of the the tech giant, shows Facebook willingness to move fast and play loose with the truth when it’s less accountable. It’s no wonder the company never shared the response with TechCrunch or posted a blog post or press release about it.

Facebook’s attempt to minimize the issue in the wake of backlash exemplifies the trend of of the social network’s “reactionary” PR strategy that employees described to BuzzFeed’s Ryan Mac. The company often views its scandals as communications errors rather than actual product screwups or as signals of deep-seeded problems with Facebook’s respect for privacy. Facebook needs to learn to take its lumps, change course, and do better rather than constantly trying to challenge details of negative press about it, especially before it has all the necessary information. Until then, the never-ending news cycle of Facebook’s self-made disasters will continue.

Below is Facebook’s full response to Senator Warner’s inquiry, followed by Warner’s original letter to Mark Zuckerberg..

Additional reporting by Krystal Hu


Source: TechCrunch

A nanoparticle injection is all it takes to let these mice see in infrared

I know it’s everyone’s dream to see outside the wavelengths allotted to our visual systems. Well, as usual, mice have gotten there first, with the help of some clever scientists. By injecting specialized light-tweaking nanoparticles into a mouse’s retina, that mouse is suddenly and clearly able to perceive near-infrared light — suggesting the same could be possible for us, assuming you don’t mind a needle in the eye.

The advance involves what the researchers, from the University of Science and Technology in China, call “ocular injectable photoreceptor-binding upconversion nanoparticles.” It’s actually not as complicated as it sounds. Well… actually, it is pretty complicated.

The human eye can only see wavelengths of light between about 430 and 770 nanometers; above that is ultraviolet and below it is infrared. We don’t see infrared but in great enough quantities we can sense the heat it imparts. All objects give off IR, increasingly so the warmer they are, which is the basis for heat vision goggles.

But while some infrared is well outside our ability to sense, a band known as near-infrared (NIR) is just below the reds we can detect. What if you could shift that NIR upwards with some kind of optical trickery? We do it all the time, of course — convert one kind of light or energy into another.

In fact, it turns out that these researchers had already created the necessary trickery for a different reason, namely as a molecule for optogenetic triggers that would absorb infrared light (which conveniently penetrates many tissues) and emit visible spectrum light instead.

The nanoparticles bind to rods and cones, coating them and changing the wavelengths they are sensitive to.

These “nanoantennae,” as the researchers call them, are biocompatible and can be combined with proteins that encourage them to bind with the photoreceptive cells in our retinas. What happens when you coat a cell that normally detects green light with a molecule that absorbs NIR radiation (900-1000 nm) and outputs something 500 nm shorter? That cell can effectively now sees IR as a shade and intensity of green.

Transmission electron microscopy image of the nanoparticles.

That’s exactly what happened when the team injected these molecules into the eyes of mice (such subretinal injections are already done in humans with some eye problems); the animals were instantly able to detect NIR in a variety of circumstances. Not only did a beam of IR cause their pupils to constrict, but patterns projected in IR indicating a reward were reliably sought by the mice, indicating this was not just a general awareness but detailed perception in the wavelength.

Note that this is different from the colorful “heat vision” we see in movies — night vision goggles use electronic sensors to amplify and categorize incoming radiation outside the visual range, producing those interesting noisy rainbow images. This would be more like seeing something warm as slightly more bright (and greener) than a cooler item of the same color. You’d also be able to see the TV clicker blinking its little patterns.

The molecules also seemed to cause no serious problems in the retina, such as cell death or irritation — and the mice were still able to see in IR some 10 weeks after injection.

The team explains the importance of their findings:

It is important to note that these injected nanoantennae did not interfere with natural visible light vision. The ability to simultaneously detect visible and NIR light patterns suggests enhanced mammalian visual performance by extending the native visual spectrum without genetic modification and avoiding the need for bulky external devices. This approach offers several advantages over the currently used optoelectronic devices, such as no need for any external energy supply, and is compatible with other human activities.

In other words, this could be a simple, safe, and reversible way to extend human vision well beyond our present capabilities — no batteries required. Not exactly something you’d want done on a whim, but you better believe the military would be interested. Of course a great deal of further work and testing needs to be done, but this does seem like a particularly promising application of nanotech.

The research was published today in the journal Cell.


Source: TechCrunch

CEO Richard Plepler is leaving HBO

Richard Pleper, who’s been at HBO since 1992 and served as CEO since 2013, is leaving the network.

In a staff memo, Plepler didn’t offer specific reasons for his departure but said, “Hard as it is to think about leaving the company I love, and the people I love in it, it is the right time for me to do so.”

The news comes less than a year after AT&T acquired HBO’s corporate parent Time Warner.

Shortly after the deal closed, WarnerMedia CEO John Stankey held a town hall meeting where he said HBO would need to grow its subscriber base and the amount of time those subscribers spend watching HBO content (a recording of the meeting was obtained by The New York Times). In the memo, Plepler said he’s told Stankey — “who has been nothing but gracious since we spoke” — that he “would work closely with him to assure a seamless and organic transition.”

This also comes as WarnerMedia plans to launch a streaming service of its own. While Pleper was CEO, Netflix has reshaped the TV landscape (and supplanted HBO as the leader in Emmy nominations), but it was also under his leadership that HBO launched its own direct-to-consumer subscription service, HBO Now, setting the stage for seemingly every network and media company launching a streaming service of its own.

In fact, the one time I interviewed Plepler was in 2013, at a red carpet event for “Game of Thrones” (I’m still not sure what I was doing there). When asked to speculate about what the future would hold, he replied, “Maybe even a broadband-only HBO delivery system. Who knows? We’ll see where that goes down the road.”


Source: TechCrunch

Se buscan voluntarios para dar sentido común a la IA con un Pictionary

El juego es un vehículo perfecto para que la inteligencia artificial aprenda a expresar y entender conceptos complejos a través de otros más simples. Por eso, un equipo del Instituto Allen ha creado una versión ‘online’ para que cualquiera pueda contribuir a su aprendizaje
Source: MIT

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