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Graham slams Trump's decision to remove US troops from Syria

CNN - Mon, 2019-10-07 12:27
Sen. Lindsey Graham, one of President Donald Trump's strongest Republican defenders in Congress, blasted Trump Monday over his decision to remove US troops from northern Syria as Turkey plans a military offensive in the region, saying it was "shortsighted and irresponsible."

Ruling on Trump’s Tax Returns: 5 Takeaways

NY Times - Mon, 2019-10-07 12:19
A judge ordered President Trump to turn over eight years of tax returns, but the case raises constitutional issues that could end up in the Supreme Court.

Review: Joker is a powerful portrayal of a troubled man’s descent into madness

Ars - Mon, 2019-10-07 12:11

Enlarge / A villain is born: Joker (Joaquin Phoenix) prepares for his grand entrance. (credit: YouTube/Warner Bros.)

Joaquin Phoenix turns in an Oscar-worthy performance as a failed stand-up comedian struggling with mental illness in Joker, Director Todd Phillips' controversial interpretation of the classic Batman villain. The film won the coveted Golden Lion when it premiered at the Venice International Film Festival in August and raked in an impressive $247 million globally in its opening weekend. It deserves every bit of that success.

Joker is intended as a standalone film—part of DC Films' decision to move away from the shared-universe approach of their prior franchise films (aka, the Marvel model). So it has no relation to the Justice League films that came before. That freed Phillips to create his own darker, gritty version of this iconic character, with a comparatively modest budget of $55 million. There's no real origin story for the Joker in the comics—not a definitive one, anyway—so Phillips and screenwriter Scott Silver were able to cherry-pick the canonical elements they needed and make up the rest. (In Batman: The Killing Joke, for instance, the Joker is a failed comedian.)

(Some spoilers below.)

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Apple Releases macOS Catalina With Find My, Screen Time, and No More iTunes

MacRumors - Mon, 2019-10-07 12:04
Apple today released the newest version of its operating system for Macs, macOS Catalina, to the public.  macOS Catalina  comes after several rounds of beta testing and months of refinements.

 macOS Catalina  can be downloaded from the Mac App Store for free, and it is available to anyone who has a compatible Mac.


 macOS Catalina  brings some major changes to the Mac, eliminating the iTunes app in favor of new Music, Podcasts, and TV apps. The three apps offer similar functionality to iTunes, but are split up by feature.

iOS device management is still available on the Mac, but it's done through the Finder instead of iTunes, and accessing your Apple ID is now done through the new profile setting in System Preferences.


The TV app offers up access to TV and movies with support for 4K HDR and Dolby Atmos, the Music app offers access to Apple Music and your iTunes library, and the Podcasts app offers up the Podcasts library with features for browsing, viewing top charts, and more.

A new Sidecar feature lets you turn your iPad into a secondary display for your Mac with just the click of a button, and you can even use your Apple Pencil to turn the  iPad  into a drawing tablet when using apps like Photoshop and Illustrator.


With  macOS Catalina , the Apple Watch can be used to approve security prompts for passwords, and Macs with a T2 chip now support Activation Lock, making them more secure.

A new Find My app is available on the Mac for the first time, and it lets you track your devices even when they're offline, or in the case of notebooks, closed.


Screen Time is available on the Mac in addition to iPhones and iPads in  macOS Catalina , so you can track your device usage across all of your devices for a better picture of how you're spending your time.


Project Catalyst, a new Apple initiative, is designed to let developers easily port their  iPad  apps over to the Mac to increase the number of Mac apps available.

A new Photos interface surfaces your best photos organized by day, month, or year, there's a new start page in Safari, Mail has new tools for muting email threads and blocking senders, and the Reminders app has been overhauled.


Security has been enhanced in  macOS Catalina  and Gatekeeper, Apple's security protocol, checks all of your apps for known security issues. New data protections require apps to get your permission before accessing your documents.

The update also supports Apple Arcade, Apple's new subscription-based gaming service that first began rolling out on the Mac last week. With  macOS Catalina , Mac users can access  Apple Arcade  games on their Mac, as well as on iOS devices and the Apple TV.


Prior to installing  macOS Catalina , Mac users should be aware that 32-bit apps no longer work, so some older apps may no longer work after installing the update.

For more on what's new in  macOS Catalina , make sure to check out our macOS Catalina roundup.

Related Roundup: macOS Catalina
This article, "Apple Releases macOS Catalina With Find My, Screen Time, and No More iTunes" first appeared on MacRumors.com

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Jokers at Every Turn at Comic Con, but They Were on Their Best Behavior

NY Times - Mon, 2019-10-07 12:02
At the New York convention, fans donned green wigs and smeared on clown face paint for the opening weekend of the “Joker” film.

Analysis: Senator's nonsensical Ukraine answer encapsulates GOP's Trump defense

CNN - Mon, 2019-10-07 12:01
With each passing day, the ongoing attempts of Republican elected officials to defend President Donald Trump's behavior are getting more and more ridiculous.

What It’s Like to See ‘Slave Play’ as a Black Person

NY Times - Mon, 2019-10-07 12:01
Experiencing Jeremy O. Harris’s provocative Broadway debut feels fraught, but invigorating.

How to make your own bootable macOS 10.15 Catalina USB install drive

Ars - Mon, 2019-10-07 12:01

Enlarge / Making a USB install drive for macOS Catalina is as easy as ever, if it's something you need. (credit: Andrew Cunningham)

Apple hasn’t shipped operating systems on physical media in a full decade, but there are still good reasons to want a reliable old USB stick for macOS Catalina. Luckily, it's not hard to make one—either with a handy graphical user interface or some light Terminal use. Here's what you need to get started:

  • A Mac that you have administrator access to. We've created a USB stick from both Mojave and Catalina, but your experience with other versions may vary.
  • A 16GB or larger USB flash drive or a 16GB or larger partition on some other kind of external drive. A USB 3.0 drive will make things significantly faster, but an older USB 2.0 drive will work in a pinch; 8GB drives worked for Mojave and older versions of macOS, but the Catalina installer is just a little too large to fit.
  • The macOS 10.15 Catalina installer from the Mac App Store (in High Sierra or older macOS versions) or the Software Update preference pane in Mojave. The installer will delete itself when you install the operating system, but it can be re-downloaded if necessary.
  • If you want a GUI, take a look at Ben Slaney's Install Disk Creator from MacDaddy. There are other apps out there that do this, but this one is quick and simple.

If you want to use this USB installer with newer Macs as they are released, you'll want to periodically re-download new Catalina installers and make new install drives. Apple rolls support for newer hardware into new macOS point releases as they come out, so this will help keep your install drive as universal and versatile as possible.

There's also one new consideration for newer Macs with Apple's T2 controller chip—as of this writing, that list includes the iMac Pro, the 2018 Mac Mini, the 2018 MacBook Air, and 2018 and 2019 MacBook Pros, though Apple keeps an updated list here. Among this chip's many security features is one that disallows booting from external drives by default. To re-enable this feature, hold down Command-R while your Mac reboots to go into Recovery Mode and use the Startup Security Utility to "allow booting from external media." If you're trying to install an older version of macOS, you may also need to go from Full Security to Medium Security to enable booting, but if you're just trying to install the current version of macOS, the Full Security option should be just fine. And if you're just doing an upgrade install rather than a clean install, you can run the Catalina installer from the USB drive from within your current installation of macOS, no advanced tweaking required.

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macOS 10.15 Catalina: The Ars Technica review

Ars - Mon, 2019-10-07 12:00

Enlarge / No operating system is an island, but macOS Catalina is named after one. (credit: Apple)

Ever since the iPhone came out in 2007 and almost instantaneously overshadowed the Mac, both in terms of sales and development resources, Apple has been making the Mac a bit more like the iPhone. Sure, a few features have moved the other way—the iPad has gradually gotten a bit more Mac-like as it has become powerful enough to do Mac-like things—but a big piece of every macOS release this decade has been "here's all the stuff Apple brought over from iOS this year."

Catalina moves macOS further and more decisively in the direction of iOS than ever; for the first time, third-party code written for iOS and iPadOS can run on the Mac with relatively few changes. At the same time, Apple remains adamant that the Mac and iOS/iPadOS are separate platforms that differ in ways that go beyond the underlying processor architecture or the primary input mechanism.

Catalina also draws clearer lines between the two platforms than we've gotten before. Apple has both said and done things that only make sense if the Mac will still be able to run whatever code you want for the foreseeable future, even as the default settings and security mechanisms become more locked-down and iOS-y. The overwhelming success of the iPhone indicates that most people are fine with Apple's restrictions most of the time. But the slew of new desktop hardware we've gotten in the last couple of years suggests that Apple understands that a valuable, vocal chunk of the Mac user base (and the developers who drive the iPhone's and iPad's success) still wants powerful hardware that runs more flexible software.

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Particles from 3D printers may be bad for your health

Futurity.org - Mon, 2019-10-07 11:47

The particles 3D printers emit can negatively affect indoor air quality and have the potential to harm respiratory health, according to a new study.

For the study, the researchers collected particles 3D printers emitted and conducted several tests to gauge their impact on respiratory cell cultures.

“All of these tests, which were done at high doses, showed that there is a toxic response to the particles from various types of filaments used by these 3D printers,” says Rodney Weber, a professor in School of Earth & Atmospheric Sciences at the Georgia Institute of Technology.

The potential hazards of 3D printers

The study was part of multi-year research project aimed at characterizing the printers’ particle emissions in a controlled environment and identifying measures that 3D printer manufacturers and users could take to reduce the potential for harm. While earlier studies had focused on quantifying the particles the printers emit, this time the researchers looked more closely at the chemical composition of the particles and their potential for toxicity.

3D printers typically work by melting plastic filaments and then depositing the melt layer upon layer to form an object. Heating the plastic to melt it releases volatile compounds, some of which come from ultrafine particles emitted into the air near the printer and the object.

In earlier research, the team found that generally the hotter the temperature required to melt the filament, the more emissions 3D printers produced. As a result, acrylonitrile butadiene styrene (ABS) plastic filaments, which require a higher temperature to melt, produced more emissions than filaments made of polylactic acid (PLA), which melt at a lower temperature.

To test the impact of the emissions on live cells, the researchers partnered with Weizmann Institute of Science in Israel, which exposed human respiratory cells and rat immune system cells to concentrations of the particles from the printers. They found that both ABS and PLA particles negatively impacted cell viability, with the latter prompting a more toxic response. But these tests did not reflect actual exposures

The researchers also performed a chemical analysis of particles to gain further insight into their toxicity and allow comparisons to toxicity of particles found in outdoor urban environments. The analysis—called oxidative potential—simulates the toxic response that an aerosol would have on cellular organisms.

“The toxicity tests showed that PLA particles were more toxic than the ABS particles on a per-particle comparison, but because the printers emitted so much more of the ABS—it’s the ABS emissions that end up being more of the concern,” Weber says.

Tips to stay safe

“Taken together, these tests indicate that exposure to these filament particles could over time be as toxic as the air in an urban environment polluted with vehicular or other emissions,” Weber says.

Another finding of the study was that the ABS particles emitted from the 3D printers had chemical characteristics that were different than the ABS filament.

“When the filament companies manufacture a certain type of filament, they may add small mass percentages of other compounds to achieve certain characteristics, but they mostly do not disclose what those additives are,” Weber says.

“Because these additives seem to affect the amount of emissions for ABS, and there can be great variability in the type and amount of additives added to ABS, a consumer may buy a certain ABS filament, and it could produce far more emissions than one from a different vendor.”

The study also looked at which types of indoor environmental scenarios emissions from a 3D printer would most impact. They estimated that in a commercial building setting such as a school or an office, better ventilation would limit the amount of exposure to the emissions. However, in a typical residential setting with less effective ventilation, the exposure could be much higher, they reported.

“These studies how that particle and chemical emissions from 3D printers can result in unintentional pollutant exposure hazards, and we are pleased to share this research so that steps can be taken to reduce health risks,” according to Marilyn Black, senior technical advisor for UL Chemical Safety.

In the meantime, some measures can be taken by operators of 3D printers to lessen their impact on air quality:

  • Operating 3D printers only in well-ventilated areas.
  • Setting the nozzle temperature at the lower end of the suggested temperature range for filament materials.
  • Standing away from operating machines.
  • Using machines and filaments that have been tested and verified to have low emissions.

The research appears in the journal Environmental Science & Technology. Funding for the research came from Underwriters Laboratories, Inc.

Source: Georgia Tech

The post Particles from 3D printers may be bad for your health appeared first on Futurity.

Listen: To boost your mood, talk to a stranger

Futurity.org - Mon, 2019-10-07 11:39

Talking with strangers may be good for our well-being, Nicholas Epley argues.

“People out in their daily lives aren’t social enough for their own well-being,” says Epley, a professor at the Booth School of Business at the University of Chicago. “They don’t engage in conversations with strangers, for instance, nearly as much as they ought to to maximize their own well-being.”

Epley’s research has focused on the ways our minds understand, or fail to understand, each other. Now, he’s expanded that research to look into why talking to strangers may be the key to better well-being, even if it’s difficult.

“Turns out that people like talking to strangers quite a bit but because they think they’re not going to enjoy it very well, they don’t they don’t do it very often,” says Epley.

“I would say my lab has been consumed over the last few years with this really reliable result that people underestimate how positive others will feel when you reach out to them in a pro-social positive way. And we just find that effect relentlessly⁠—just relentlessly.”

Here, Epley explains his work and how talking to strangers is good for us and why it’s so difficult:

A transcript of the episode is available here.

Source: University of Chicago

The post Listen: To boost your mood, talk to a stranger appeared first on Futurity.

It’s Not Entertaining. It’s Having People Over.

NY Times - Mon, 2019-10-07 11:23
Alison Roman’s philosophy of cooking for others: Make it about unfussy food and unfussy vibes. Here’s a full menu for a meal.

Nobel Prize for Medicine announced

CNN - Mon, 2019-10-07 11:23
The 2019 Nobel Prize for Medicine has been jointly awarded to William Kaelin Jr., Sir Peter Ratcliffe and Gregg Semenza for their pioneering research into how human cells respond to changing oxygen levels.

What We Learned in N.F.L. Week 5

NY Times - Mon, 2019-10-07 11:21
The Packers got a big win in Dallas, the Patriots and the Texans were dominant and the Chiefs finally lost. But Sunday offered some reminders of what’s wrong with the N.F.L.

Turkey’s Plan to Move Refugees to Syria Is Dangerous

NY Times - Mon, 2019-10-07 11:14
Ankara’s plan is a perfect recipe for enduring ethnic tensions and instability.

Alex Trebek says cancer may end his time on 'Jeopardy!'

CNN - Mon, 2019-10-07 11:12
After months of battling pancreatic cancer, Alex Trebek is hinting that his long tenure as host of "Jeopardy!" may be nearing an end.
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