Dropbox for iOS lets you sign PDFs, adds iMessage app

Dropbox isn’t a company that makes flashy, high-profile changes to its products. Instead, they’re all about refinement, making small changes over time that end up making things faster and easier for customers. That’s happening today with the Dropbox iOS app: the company is rolling out five new features, with another important one, iPad split-screen multitasking, coming soon. None of the new features are groundbreaking on their own, but they take advantage of some new iOS 10 features and add up to a Dropbox experience that makes it easier for the company’s customers to Get Things Done. First up is the ability to add your signature to PDFs stored in Dropbox — you can drop a text field anywhere in a document that you want to type in, and you can also open up a window to trace your signature on your device’s touchscreen. Much like the document scanning feature Dropbox added in June, this isn’t something you’ll use every day, but it could be a lifesaver when you need it. It’s certainly a lot easier than printing out, signing, scanning and then emailing a document like a lease or school permission slip. I’ve done that dance far too often lately and would be happy to try Dropbox’s workflow. The next set of new features relies on iOS 10’s new capabilities. You can now share files through iMessage — the app shows up in the iMessage app area, and tapping it brings up a list of your most recent files. When you send them through iMessage, the recipient will get a little preview of the document. That’s an improvement on how things worked before; you could send files through iMessage by using the share panel inside the Dropbox app, but the recipient would only get an unwieldy link, with no info on what the file they were going to receive was. Dropbox’s “today” screen widget is also more useful now. Instead of just showing a list of your recently edited files, there are three shortcuts that let you scan a document, upload a photo or create a new Microsoft Office file . The scanner shortcut seems particularly useful; a swipe and a tap will let you capture that receipt you need for expenses before you forget about it and lose it forever. There’s also a new version control feature for mobile: if you’re in a shared file, you’ll receive a little notification if someone else has made changes to the document. You can then just tap to refresh and see what’s changed. Given that staying in sync across shared documents remains one of the trickiest things to do, this is a most welcome change — although we don’t imagine that most people do so much work on their phones that they’ll need to be alerted of changes in real time. It’s still helpful for those doing a lot of work on their mobile devices, though. The last few updates are for the iPad. If you’re watching a video stored in your Dropbox, you can now view it in the picture-in-picture mode Apple added to iOS 9 last year. The other, more useful update is “coming soon” — that’s full split-screen support. That’s one of the most important things a good iPad app can offer at this point, and it’s a little surprising that it took Dropbox a year to get there. But if you have documents stored in Dropbox that you want to keep an eye on while writing or browsing the web or doing anything else, this feature will finally make that possible. Matt Pan from Dropbox told me that these features were the latest efforts to both bring the full desktop functionality of the program to mobile as well as continue the company’s mission to offer its tools to users inside software they’re already using. That latter case is what Dropbox is doing with iMessage and what it has already done with Microsoft Office . Not everyone will automatically find a use for each new tool — but if you use Dropbox, probably at least one of these new features will be handy, and it’s entirely possible you’ll find a few others come in handy down the line. The update rolls out for iPhone and iPad today, and split-screen view on the iPad will arrive “in the coming weeks.”

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Dropbox for iOS lets you sign PDFs, adds iMessage app

Britain’s new plastic money so hi-tech it can play vinyl records

In this video, a man plays Abba’s 1976 classic Money Money Money using one of the new £5 notes issued in the UK. They’re made of plastic. The new polymer five pound notes have a rather curious ability of being just about able to play vinyl records (with the aid of a contact microphone and small amplifier not shown on screen). As the corners on these new banknotes are more durable and sharper than its paper counterpart it acts like a very crude record needle. Like a lady barbarian’s armor in a computer game, the new fiver doesn’t crumple easily or get wet or tear, but still folds, and has a see-through window. “I do quite like them,” says a Briton on the street. https://www.youtube.com/watch?v=ChqhM9C44fM https://www.youtube.com/watch?v=srQSzhkh8Uo

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Britain’s new plastic money so hi-tech it can play vinyl records

Don’t buy a Galaxy Note 7—and return yours if you already have

Enlarge / The Note 7 has too many safety issues for us to recommend. (credit: Ron Amadeo) When we review phones, we do our best to tell you everything you need to make a smart purchase. We talk about the underlying tech, too, but in the end, people usually read a review because they either want to know which thing to buy or they want to know more about the thing they already intend to buy. Usually, we give you all of that information and make a general recommendation but leave the ultimate purchasing decision up to you. But for Samsung’s Galaxy Note 7, we need to go a step further: don’t buy this phone. And if you have bought it, you should return the Galaxy Note 7 immediately and purchase something else. Read 11 remaining paragraphs | Comments

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Don’t buy a Galaxy Note 7—and return yours if you already have

Samsung introduces its own high-end cylindrical desktop computer

Samsung There’s a new black cylindrical desktop in town, but unfortunately for fans of the nearly three-year-old Mac Pro, this one isn’t from Apple. Samsung’s “ArtPC Pulse” desktop, revealed today via Amazon listings, isn’t quite the PC version of the Mac Pro, but that description isn’t far off. The port layout in particular is distinctly Mac Pro-esque, though not as high-end. It has four USB Type-A ports, one USB Type-C port, an audio jack, an Ethernet port, an HDMI port, an SD card reader, and a power connector arranged vertically on its back. That power plug implies that, like the Mac Pro, the system saves some space on your floor with an internal power supply, which is a nice touch. Read 8 remaining paragraphs | Comments

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Samsung introduces its own high-end cylindrical desktop computer

Transistor with a 1nm gate size is the world’s smallest

Enlarge (credit: Sujay Desai/Berkeley Lab ) Conventional silicon-based electronics are rapidly approaching a fundamental barrier. Below about five nanometers, quantum effects make their behavior unpredictable. That’s led to research into alternative materials such as carbon nanotubes. Now, a large collaboration has taken a different material—molybdenum disulfide, or MoS 2 —and used its distinctive properties to craft a transistor that has a gate size of just one nanometer. Unfortunately, other parts of the hardware are quite a bit larger than that, and we have no way of producing these in bulk yet. But the work validates that MoS 2 ‘s properties can allow us to shrink electronics down below silicon’s limits. The idea behind the work is that a property of silicon we normally view as beneficial becomes an issue once things get small enough. That property is the mobility of electrons within silicon. On the positive side, that means the electrons move with less resistance when we want them to. It also means that they move more readily when we don’t want them to, which causes an increase in current leaking across transistors when they’re supposed to be off. Once silicon features get small enough (that 5nm limit mentioned above), leakage becomes large enough that it’s impossible to tell whether a transistor is on or off. Read 7 remaining paragraphs | Comments

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Transistor with a 1nm gate size is the world’s smallest

Silkworms eat nanotubes, spin super-silk

Nanoengineer engineers at Tsinghua University fed silkworms carbon nanotubes or graphene, both of which are approximately 100 times stronger than steel. The silkworms then spun reinforced silk that, according to Chemical & Engineering News , “twice as tough (as regular silk) and can withstand at least 50% higher stress before breaking.” The modified silks conduct electricity, unlike regular silk. Raman spectroscopy and electron microscopy imaging showed that the carbon-enhanced silk fibers had a more ordered crystal structure due to the incorporated nano materials. Some questions remain. One is exactly how the silkworms incorporate the nanomaterials in their silk. Another is what percentage of the nanomaterials eaten by the worms make it into the silk instead of being excreted or otherwise metabolized. ” Feeding Single-Walled Carbon Nanotubes or Graphene to Silkworms for Reinforced Silk Fibers ” (Nano Letters)

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Silkworms eat nanotubes, spin super-silk

Remains of the Day: Yahoo Makes it More Difficult to Leave by Disabling Email Forwarding

Yahoo has recently disabled a feature that would have made it easier to ditch your Yahoo email account. Perhaps you had planned on forwarding all incoming messages to a new address, a common feature with most email providers. Unfortunately it’s not currently an option at Yahoo. Read more…

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Remains of the Day: Yahoo Makes it More Difficult to Leave by Disabling Email Forwarding

Hurricane Matthew Unearths 150-Year-Old Civil War Artillery in South Carolina

On Sunday, explosives experts were dispatched to Folly Island, South Carolina, after a resident found what appeared to be at least a dozen Civil War cannonballs uncovered by Hurricane Matthew. Read more…

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Hurricane Matthew Unearths 150-Year-Old Civil War Artillery in South Carolina

HealthCare.gov Warns It Might Just Change Your Coverage For You By January

Are you one of the millions of people who signed up for health insurance through HealthCare.gov? If your health insurance company is pulling out of Obamacare, you might want to head over to the site before the start of the new year. If you don’t switch your health insurance provider by January, the government will switch it for you. And you might not like their choice. Read more…

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HealthCare.gov Warns It Might Just Change Your Coverage For You By January

When Her Best Friend Died, She Rebuilt Him Using Artificial Intelligence

When Roman Mazurenko died, his friend Eugenia Kuyda created a digital monument to him: an artificial intelligent bot that could “speak” as Roman using thousands of lines of texts sent to friends and family. From the report: “It’s pretty weird when you open the messenger and there’s a bot of your deceased friend, who actually talks to you, ” Fayfer said. “What really struck me is that the phrases he speaks are really his. You can tell that’s the way he would say it — even short answers to ‘Hey what’s up.’ It has been less than a year since Mazurenko died, and he continues to loom large in the lives of the people who knew him. When they miss him, they send messages to his avatar, and they feel closer to him when they do. “There was a lot I didn’t know about my child, ” Roman’s mother told me. “But now that I can read about what he thought about different subjects, I’m getting to know him more. This gives the illusion that he’s here now.” Read more of this story at Slashdot.

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When Her Best Friend Died, She Rebuilt Him Using Artificial Intelligence