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Archivo del Autor: Belen De Leon

Best and worst of Star Wars: The Rise of Skywalker — Our global review – CNET

The latest Star Wars movie is being dissected and debated around the world. From San Francisco to Sydney, what did CNET’s editors think? (Warning: spoilers.)
Source: CNET

Star Wars: The Rise of Skywalker is the perfect end to the Jedi legend – CNET

Commentary: Shockingly, I found all three trilogies quite successful at telling the story of the Jedi religion.
Source: CNET

1917 review: One-take WWI epic a breathless anthem for doomed youth – CNET

Sam Mendes turns a family story from the Great War into a terrifyingly immersive movie experience, even if it does cheat a bit.
Source: CNET

Nissan exec in charge of turnaround departs after two weeks on the job – Roadshow

Jun Seki is a 30-year veteran of Nissan, but he’s bailing on the vice-COO position after just a fortnight.
Source: CNET

Daily Crunch: Travis Kalanick is leaving Uber’s board

The Daily Crunch is TechCrunch’s roundup of our biggest and most important stories. If you’d like to get this delivered to your inbox every day at around 9am Pacific, you can subscribe here.

1. Uber founder Travis Kalanick is leaving the company’s board of directors

Uber founder and former CEO Travis Kalanick will officially resign from the board as of December 31, to “focus on his new business and philanthropic endeavors,� according to a company press release.

Kalanick, who was forced out as Uber CEO and eventually replaced by Dara Khosrowshahi, has been in the process of selling off his considerable ownership stake in the company. In fact, it looks like Kalanick has now sold all his remaining stock.

2. Plenty of Fish app was leaking users’ hidden names and postal codes

Dating app Plenty of Fish has pushed out a fix for its app after a security researcher found it was leaking information that users had set to “private� on their profiles. Before the fix, the app was silently returning users’ first names and postal ZIP codes, according to The App Analyst.

3. As DraftKings finds an exit, a reminder of what could have been

DraftKings, a betting service focused on fantasy sports, will go public via a reverse merger. Not too long ago DraftKings and its erstwhile rival FanDuel were ubiquitous on television; now the two companies are fractions of what they once were. (Extra Crunch membership required.)

4. Gift Guide: 13 last-minute subscription gifts for the people you totally didn’t forget

It’s too late to order things online, and brick-and-mortar stores are either closed for the week or absolutely slammed. So what can you do? Subscriptions!

5. Fyre Festival meets Mr. Bone Saw

Connie Loizos looks at the controversy around the three-day-long MDL Beast Festival in Riyadh, Saudi Arabia. The event, promoted by a number of celebrities and social media influencers, aimed to promote the efforts of its de facto ruler, Crown Prince Mohammed bin Salman (known as MBS).

6. A false start for foldables in 2019

A year from now, the Samsung Galaxy Fold’s turbulent takeoff may well be a footnote in the largest story of foldables. For now, however, it’s an important caveat that will come up in every conversation about the nascent product category. (Extra Crunch membership required.)

7. Micro-angelo? This 3D-printed ‘David’ is just one millimeter tall

3D printing has proven itself useful in so many industries that it’s no longer necessary to show off, but some people just can’t help themselves. Case in point: this millimeter-tall rendition of Michelangelo’s famous “David� printed with copper using a newly developed technique.


Source: TechCrunch

Pyka and its autonomous, electric crop-spraying drone land $11M seed round

Modern agriculture involves fields of mind-boggling size, and spraying them efficiently is a serious operational challenge. Pyka is taking on the largely human-powered spray business with an autonomous winged craft and, crucially, regulatory approval.

Just as we’ve seen with DroneSeed, this type of flying is risky for pilots, who must fly very close to the ground and other obstacles, yet also highly susceptible to automation; That’s because it involves lots of repetitive flight patterns that must be executed perfectly, over and over.

Pyka’s approach is unlike that of many in the drone industry, which has tended to use multirotor craft for their maneuverability and easy take-off and landing. But those drones can’t carry the weight and volume of pesticides and other chemicals that (unfortunately) need to be deployed at large scales.

The craft Pyka has built is more traditional, resembling a traditional one-seater crop dusting plane but lacking the cockpit. It’s driven by a trio of propellers, and most of the interior is given over to payload (it can carry about 450 pounds) and batteries. Of course, there is also a sensing suite and onboard computer to handle the immediate demands of automated flight.

Pyka can take off or land on a 150-foot stretch of flat land, so you don’t have to worry about setting up a runway and wasting energy getting to the target area. Of course, it’ll eventually need to swap out batteries, which is part of the ground crew’s responsibilities. They’ll also be designing the overall course for the craft, though the actual flight path and moment-to-moment decisions are handled by the flight computer.

Example of a flight path accounting for obstacles without human input

All this means the plane, apparently called the Egret, can spray about a hundred acres per hour, about the same as a helicopter. But the autonomous craft provides improved precision (it flies lower) and safety (no human pulling difficult maneuvers every minute or two).

Perhaps more importantly, the feds don’t mind it. Pyka claims to be the only company in the world with a commercially approved large autonomous electric aircraft. Small ones like drones have been approved left and right, but the Egret is approaching the size of a traditional “small aircraft,” like a Piper Cub.

Of course, that’s just the craft — other regulatory hurdles hinder wide deployment, like communicating with air traffic management and other craft; certification of the craft in other ways; a more robust long-range sense and avoid system and so on. But Pyka’s Egret has already flown thousands of miles at test farms that pay for the privilege. (Pyka declined to comment on its business model, customers or revenues.)

The company’s founding team — Michael Norcia, Chuma Ogunwole, Kyle Moore and Nathan White — comes from a variety of well-known companies working in adjacent spaces: Cora, Kittyhawk, Joby Aviation, Google X, Waymo and Morgan Stanley (that’s the COO).

The $11 million seed round was led by Prime Movers Lab, with participation from Y Combinator, Greycroft, Data Collective and Bold Capital Partners.


Source: TechCrunch

A Twitter app bug was used to match 17 million phone numbers to user accounts

A security researcher said he has matched 17 million phone numbers to Twitter user accounts by exploiting a flaw in Twitter’s Android app.

Ibrahim Balic found that it was possible to upload entire lists of generated phone numbers through Twitter’s contacts upload feature. “If you upload your phone number, it fetches user data in return,” he told TechCrunch.

He said Twitter’s contact upload feature doesn’t accept lists of phone numbers in sequential format — likely as a way to prevent this kind of matching. Instead, he generated more than two billion phone numbers, one after the other, then randomized the numbers, and uploaded them to Twitter through the Android app. (Balic said the bug did not exist in the web-based upload feature.)

Over a two-month period, Balic said he matched records from users in Israel, Turkey, Iran, Greece, Armenia, France and Germany, he said, but stopped after Twitter blocked the effort on December 20.

Balic provided TechCrunch with a sample of the phone numbers he matched. Using the site’s password reset feature, we verified his findings by comparing a random selection of usernames with the phone numbers that were provided.

In one case, TechCrunch was able to identify a senior Israeli politician using their matched phone number.

While he did not alert Twitter to the vulnerability, he took many of the phone numbers of high-profile Twitter users — including politicians and officials — to a WhatsApp group in an effort to warn users directly.

It’s not believed Balic’s efforts are related to a Twitter blog post published this week, which confirmed a bug could have allowed “a bad actor to see nonpublic account information or to control your account,” such as tweets, direct messages and location information.

A Twitter spokesperson told TechCrunch the company was working to “ensure this bug cannot be exploited again.”

“Upon learning of this bug, we suspended the accounts used to inappropriately access people’s personal information. Protecting the privacy and safety of the people who use Twitter is our number one priority and we remain focused on rapidly stopping spam and abuse originating from use of Twitter’s APIs,” the spokesperson said.

It’s the latest security lapse involving Twitter data in the past year. In May, Twitter admitted it gave account location data to one of its partners, even if the user had opted-out of having their data shared. In August, the company said it inadvertently gave its ad partners more data than it should have. And just last month, Twitter confirmed it used phone numbers provided by users for two-factor authentication for serving targeted ads.

Balic is previously known for identifying a security flaw breach that affected Apple’s developer center in 2013.


Source: TechCrunch

'Star Wars: The Rise of Skywalker' Is a Lesson in Military Opposites

The Resistance is outmanned and outgunned, but their adaptability wins the day.
Source: Wired

Micro-angelo? This 3D-printed ‘David’ is just one millimeter tall

3D printing has proven itself useful in so many industries that it’s no longer necessary to show off, but some people just can’t help themselves. Case in point: this millimeter-tall rendition of Michelangelo’s famous “David” printed with copper using a newly developed technique.

The aptly named “Tiny David” was created by Exaddon, a spin-off company from another spin-off company, Cytosurge, spun off from Swiss research university ETH Zurich. It’s only a fraction of a millimeter wide and weighs two micrograms.

It was created using Exaddon’s “CERES” 3D printer, which lays down a stream of ionized liquid copper at a rate of as little as femtoliters per second, forming a rigid structure with features as small as a micrometer across. The Tiny David took about 12 hours to print, though something a little simpler in structure could probably be done much quicker.

As it is, the level of detail is pretty amazing. Although, obviously, you can’t recreate every nuance of Michelangelo’s masterpiece, even small textures like the hair and muscle tone are reproduced quite well. No finishing buff or support struts required.

Of course, we can create much smaller structures at the nanometer level with advanced lithography techniques, but that’s a complex, sensitive process that must be engineered carefully by experts. This printer can take an arbitrary 3D model and spit it out in a few hours, and at room temperature.

The CERES printer.

But the researchers do point out that there is some work involved.

“It is more than just a copy and downsized model of Michelangelo’s David,” said Exaddon’s Giorgio Ercolano in a company blog post. “Our deep understanding of the printing process has led to a new way of processing the 3D computer model of the statue and then converting it into machine code. This object has been sliced from an open-source CAD file and afterwards was sent directly to the printer. This slicing method enables an entirely new way to print designs with the CERES additive micromanufacturing system.”

Much smaller than that doesn’t work, though — Micro-David starts looking like he’s made of Play-Doh snakes. That’s fine, they’ll get there eventually.

The team published the details of their newly refined technique (it was pioneered a few years ago but is much better now) in the journal Micromachines.


Source: TechCrunch

2019's Weirdest and WIRED-est Photos

Highlights of our favorite photography to write about this year.
Source: Wired

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