Here's what dryriver wondered after hearing that the oldest Porsche T64 in the world -- built in 1939 -- was going to be auctioned: What stands out about this nearly 80 year old car is how curved and aerodynamically shaped it is. If you then Google 1950s, 1960s, and 1970s car images, you find that they are nowhere near as aerodynamic in shape. It took a while before production cars started to appear en masse that had a nicely-curved aerodynamic body, and before Bezier curves were invented, which allowed early CAD software to produce precisely curved designs.

Why did it take so long for cars to become more curved if aircraft of that time already had aerodynamic curves and the benefits of an aerodynamically shaped land vehicle were also known? Was it an issue with actually manufacturing curved cars in great numbers below a certain cost level, or did the automotive industry simply not care about the aerodynamics of their vehicles for a long time?
Long-time Slashdot reader MightyYar blames cheap gas, arguing that "When gas was nearly free, there was little incentive to make vehicles aerodynamic." (He also complains that "When they did go aerodynamic, they all started to look the same -- as there is an optimal aerodynamic design for a box on wheels so every designer with the same cost constraints and design tools will converge on that.") Z00L00K adds that "Until the 1930's aerodynamic drag wasn't really an issue for vehicles because the top speed wasn't that high and the roads didn't really permit high speeds either."

Long-time Slashdot reader Martin S. believes "Styling for public tastes beat aerodynamics except for outright race cars. Fuel efficiency has only become the primary driver with the rising number of cars, pollution levels in our cities and climate change." But are there other pieces to the story?

Share your own thoughts in the comments. Why did it take so long for cars to become aerodynamically shaped?

An anonymous reader quotes Fierce Wireless: Earlier this week, the New York Times published a story with the headline "Your 5G Phone Won't Hurt You. But Russia Wants You to Think Otherwise." [Non-paywalled MSN version here.] The story outlined how RT, the Russia-backed and U.S.-based television network, has been peddling 5G cancer fear-mongering stories, making claims that 5G causes brain cancer, infertility, autism, Alzheimer's and other health disorders.

The Times reports RT has run seven such programs this year, including pieces entitled "5G Apocalypse" and "Experiment on Humanity." The Times article claims that disinformation in these news segments has spread across Facebook, YouTube and TV news channels, and that news outlets almost never mention RT's Russian origins. Anna Belkina, RT's head of communications in Moscow, told the Times in an email, "Unlike many other media, we show the breadth of debate." But, U.S. officials have accused RT of being the Kremlin's principal international propaganda outlet.
VentureBeat adds that the New York Times "has accused Russian broadcaster RT America of stoking health-related 5G disinformation in an effort to delay other countries while Russia prepares to belatedly launch the new technology," adding that at least one of the programs told its viewers in America that 5G "might kill you...."

"Meanwhile, efforts to launch 5G networks are underway within Russia itself, and the New York Times reports that Russians have embraced even more extreme views on the high-frequency wireless signals: It's believed that they can be used to heal wounds, fight hair loss, rejuvenate skin, and treat cancer."

Google "officially declared Kotlin the go-to language for Android development last week at its Google I/O developer conference," reports Mike Melanson's "This Week in Programming" column, "and the company is backing that up with a couple of initiatives around making it easier (and free) to learn the language now used by a majority of Android developers." Google teamed up with Udacity to offer Developing Android Apps with Kotlin , a free, self-paced online course on how to build Android apps with Jetpack and Kotlin, meant for people who have programming experience and are comfortable with Kotlin basics. Google also announced "Kotlin/Everywhere, a series of community-driven events focussing on the potential of Kotlin on all platforms," which it is putting on in conjunction with JetBrains.

Of course, this leaves the question that has been asked many times before -- why Kotlin? -- and IT consultant Kristen Carter offers a take on how Android app development became Kotlin-first. Carter offers some business angles, such as the 2010 lawsuit against Google by Oracle, which predates Kotlin by just a year, and she speculates may have been the impetus behind the language's development as "Google has always wanted to get away from the [Java] ecosystem." At the same time, Carter offers some language-specific reasoning too, such as the comparably succinct nature of Kotlin, the absence of Java's NullPointerExceptions, and the ease with which Java developers could transition to Kotlin. Carter ends her piece by posing the possibility that Oracle "knows the significance of Java in android app development" and could "ship Java with a few upgrades in its next version to take on Kotlin."

An anonymous reader quotes the Washington Post: Venky Ganesan, a partner at technology investor Menlo Ventures, told The Washington Post that the White House's new survey about bias on social media is "pure kabuki theatre" and an attempt to curry political points with conservatives. He said the Trump administration's repeated accusations that tech companies censor conservative voices are unfounded because even though most Silicon Valley executives are liberal or libertarian, they wouldn't let politics get in the way of their primary goal: making money...

The Internet Association, a trade association representing Facebook, Google and other tech companies, also pushed back on President Trump's repeated accusations that their products are biased against conservatives. The association says the platforms are open and enable the speech of all Americans -- including the president himself. "That's why the president uses Twitter so much," said Michael Beckerman, the Internet Association's chief executive. "He actually used Twitter for this particular announcement, which is perhaps ironic."
The article adds that the Trump administration "declined to tell The Washington Post what it planned to do with the data it's amassing." But on Twitter the New York Times technology columnist Kevin Roose argued that the survey "is just going to be used to assemble a voter file, which Trump will then pay Facebook millions of dollars to target with ads about how biased Facebook is."

Vice also believes it's a "craven data collection ploy" and "an elaborate way of getting people to subscribe to the White House's email list," adding "If this whole enterprise feels shady, that's because it is... The site isn't even hosted on a government server, but was created with Typeform, a Spain-based web tool that lets anyone set up simple surveys." Mashable also notes that the site "also just so happens to have an absolutely bonkers privacy policy" which includes allowing the White House to edit everything that's submitted.

Click here to read even more reactions.

Ben Sisario, American author, academic, and journalist who covers the music industry for The New York Times, shares why he still likes to list to compact discs: I try to keep an eye on all the major platforms out there, which means regularly poking around on about a dozen apps. My go-to sources are Spotify, SoundCloud, Bandcamp and Mixcloud, which has excellent D.J.-style mixes and to me feels more human than most. At home I have a Sonos Play:5 speaker, which plays streaming music and podcasts, and is a piece of cake to use. I also have Google Chromecast Audio, a little plug-in device (now discontinued) that allows me to send high-fidelity streams to my stereo. It sounds better that way, but it's not nearly as easy to use as the Sonos. To be honest, my preferred way to listen to music is on CD, as unfashionable as that might be. You push a button, the music plays, and then it's over -- no ads, no privacy terrors, no algorithms! Do you share the same sentiment as Sisario, or have you gone all in on music streaming? Why or why not?

German startup Lilium has unveiled a new "flying taxi" that can vertically take off and be the basis for an on-demand air service within six years. The Guardian reports: The electric jet-powered five-seater aircraft is designed to travel up to 300km, a journey that would take it an hour at top speed. While a smaller version of its novel plane flew in 2017, Lilium said that the maiden flight of a full-scale prototype earlier this month -- a brief, remote-controlled test hover in Munich -- was a "huge step." The firm, which has attracted more than $100 million in investment since its founding in 2015, has set a target of offering Uber-style, app-based air taxis in multiple cities by 2025.

The latest iteration, with room for a pilot and four passengers, will be the template for Lilium's mass production model. With sufficient economy of scale, Lilium believes fares would be around $70 per head for a cross-city hop from, for example, JFK airport to Manhattan. According to Lilium, the relatively simple design, beyond the 36 electric jet engines needed for vertical take-off and landing, make it more safe and affordable than other planes. Once in the air, the power needed in cruise is little more than that of an electric car, Lilium says. The fixed wing design gives a longer range than competitors with drone-based aircraft, which consume much more energy keeping airborne. Lilium will now seek certification for its new plane through rigorous flight testing, the next landmark being to move the jet seamlessly from vertical to horizontal flight.

CNBC's Todd Haselton has discovered that Google saves years of information on the purchases you've made, even outside Google, and pulls this information from Gmail. An anonymous reader shares the report: A page called "Purchases" shows an accurate list of many -- though not all -- of the things I've bought dating back to at least 2012. I made these purchases using online services or apps such as Amazon, DoorDash or Seamless, or in stores such as Macy's, but never directly through Google. But because the digital receipts went to my Gmail account, Google has a list of info about my buying habits. Google even knows about things I long forgot I'd purchased, like dress shoes I bought inside a Macy's store on Sept. 14, 2015.

But there isn't an easy way to remove all of this. You can delete all the receipts in your Gmail inbox and archived messages. But, if you're like me, you might save receipts in Gmail in case you need them later for returns. There is no way to delete them from Purchases without also deleting them from Gmail -- when you click on the "Delete" option in Purchases, it simply guides you back to the Gmail message. Google's privacy page says that only you can view your purchases. But it says "Information about your orders may also be saved with your activity in other Google services " and that you can see and delete this information on a separate "My Activity" page. Except you can't. Google's activity controls page doesn't give you any ability to manage the data it stores on Purchases. Google says you can turn off the tracking entirely, but when CNBC tried this, it didn't work.

Google says it doesn't use your Gmail to show you ads and promises it "does not sell your personal information, which includes your Gmail and Google Account information," and does "not share your personal information with advertisers, unless you have asked us to."

Instead of regulating Facebook like a traditional telecom or media company, Bloomberg Opinion columnist Elaine Ou argues "Facebook should be regulated the same way as other vices like tobacco, alcohol and gambling": Facebook achieved outsize market share with an addictive product. A competing platform would need to do an even better job of exploiting psychological vulnerability to topple the incumbent. But the solution to a harmful industry dominated by a monopoly is not to foster equally harmful competitors; it's to reduce our dependence on the industry as a whole. Regulatory proposals should begin by protecting the youth. Facebook has a messaging app designed for kids under 13, but expecting the platform to protect children from harmful content is like asking the tobacco industry to make a kid-friendly cigarette. There's sort of a conflict of interest going on. If Silicon Valley execs refuse to let their own children use apps, perhaps they shouldn't be allowed to market their apps to other people's children either.

A lot of our complacency toward social media platforms stems from a lack of understanding of how they take advantage of emotional vulnerabilities to keep users engaged. This is not unintentional. And much like the tobacco companies that spent four decades denying a link between smoking and lung cancer, Facebook has been equivocal in acknowledging its own harmful effects. That brings us to another response outside the realm of antitrust: Tobacco companies are now required to disclose the contents of their products and open their processing facilities to inspection to reduce information asymmetry between the consumer and manufacturer. The source code behind Facebook's news feed should be made available for inspection as well. The nationwide decline in tobacco use was the result of decades of public awareness campaigns. The government should recognize social media for its psychologically exploitative properties and treat these companies the same way - with restrictions on youth targeting and with publicity about the risks. In closing, Elaine suggests the anti-drug ads depicting a fried egg "can be repurposed to illustrate what your brain looks like at the hands of tech employees who like to 'move fast and break things.'"

dryriver writes: For capitalism to work for consumers in a beneficial way, the big players have to compete hard against each other and innovate courageously. What appears to be happening instead, however, is that every year almost everybody is making roughly the same product at roughly the same price point. Most 4K TVs at the same price point have the same features -- there is little to distinguish manufacturer A from manufacturer B. Ditto for smartphones -- nobody suddenly puts a 3D scanning capable lightfield camera, shake-the-phone-to-charge-it or something similarly innovative into their next phone. Ditto for game consoles -- Xbox and Playstation are not very different from each other at all. Nintendo does "different," but underpowers its hardware. Ditto for laptops -- the only major difference I see in laptops is the quality of the screen panel used and of the cooling system. The last laptop with an auto stereoscopic 3D screen I have seen is the long-discontinued Toshiba Satellite 3D. Ditto for CPUs and GPUs -- it doesn't really matter whether you buy Intel, AMD, or Nvidia. There is nothing so "different" or "distinct" in any of the electronics they make that it makes you go "wow, that is truly groundbreaking." Ditto for sports action cameras, DSLRs, portable storage and just about everything else "tech." So where precisely -- besides pricing and build-quality differences -- is the competition in what these companies are doing? Shouldn't somebody be trying to "pull far ahead of the pack" or "ahead of the curve" with some crazy new feature that nobody else has? Or is true innovation in tech simply dead now?

An anonymous reader quotes a report from Ars Technica: On May 17, researchers at Tenable revealed that they had discovered a vulnerability in the Windows version of the desktop application for Slack, the widely used collaboration service. The vulnerability, in Slack Desktop version 3.3.7 for Windows, could have been used to change the destination of a file download from a Slack conversation to a remote file share owned by an attacker. This would allow the attacker to not only steal the files that were downloaded by a targeted user, but also allow the attacker to alter the files and add malware to them. When victims opened the files, they would get a potentially nasty surprise. Tenable reported the vulnerability to Slack via HackerOne. Slack has issued an update to the Windows desktop client that closes the vulnerability. Once the attacker had changed the default download location, "the attacker could have not only stolen the document, but even inserted malicious code in it so that when opened by victim after download (through the Slack application), their machine would have been infected," writes Tenable's David Wells in a blog post.

Google's autonomous drone delivery service is spreading its wings. After starting deliveries last month in Australia's capital city, Canberra, Project Wing is now moving into Finland's capital, Helsinki. TechCrunch reports: Drone deliveries will start next month -- which may just make the "spring" time frame it announced late last year. Like the Australian deliveries, this is considered a "pilot" program, with select goods and limited geography. Specifically, things are being test driven in the Vuosaari distract -- the city's most populated.

Wing notes on its Medium page: "Vuosaari is an inspiring locale for Wing in several ways. Helsinki's most populous district, it is bordered by water on three sides, with significant forestland alongside residential areas and a large international cargo port. The density of Vuosaari's population makes it a great place to launch our first service to multi-family housing communities as well." The program will kick off with two partners: gourmet super market, Herkku Food Mark and Cafe Monami. That means everything from salmon sandwiches to pastries delivered via drone.

Microsoft is working on an ambitious new Minecraft game with an augmented-reality spin that hopes to one up Niantic's wildly popular Pokemon Go mobile game. The Verge's Tom Warren sat down with Microsoft's HoloLens and Kinect creator, Alex Kipman, to take a look Minecraft Earth, a new free-to-play game for iOS and Android that lets players create and share whatever they've made in the game with friends in the real world, away from TV screens and monitors.

"We have covered the entire planet in Minecraft," explains Torfi Ilafsson, game director of Minecraft Earth. "Every lake is a place you can fish, every park is a place you can chop down trees. We've actually taken maps of the entire world and converted them to Minecraft." Warren writes: These maps, based on OpenStreetMap, have allowed Microsoft to start working out where to place Minecraft adventures into the world. These adventures spawn dynamically on the Minecraft Earth map and are designed for multiple people to get involved in. This is really where Minecraft Earth starts to get interesting and beyond anything I've played in other AR games like Pokemon Go. I tried a variety of adventures during my brief Minecraft Earth gameplay demo, and they range from peaceful and friendly to a little more risky, knowing you enter them and might lose all your treasure if you die to a monster. The fascinating part of adventures is that you can be side-by-side with friends, all experiencing the same game on the exact same spot of a sidewalk or in a park at the same time. Microsoft is doing some impressive behind-the-scenes computational magic (more on that later) so that when you play an adventure, it's in a precise location, beyond regular GPS coordinates, so that everyone is experiencing the same thing. You can fight monsters, break down structures for resources together, and even stand in front of a friend to block them from physically killing a virtual sheep.

All of the blocks that are collected during an adventure are shared with fellow players, so there are no player-versus-player battles here to kill each other and steal materials. You'll even see the tools that fellow players have in their hands on your phone's screen, alongside their username. The idea is that you essentially become your phone in Minecraft Earth, and your camera is a lens into this virtual world. Once you've gathered lots of resources, you can then start building. Every player will have a library of build plates, with some that are as big as 200 x 200 feet. You can use build plates to sit a Minecraft build down on a table and build something with friends. Every piece of material that a friend uses on your own plate will then be part of your build, so it's a collaborative effort to create giant structures; playing solo will mean a lot of searching around for materials. Once you've completed a build, you can then share a link to it for friends or followers to then play with your creation on a table or in giant scale in an open space. The game will be available in beta on iOS and Android this summer.

We often hear that AI is important for economic growth, and while that claim makes intuitive sense, there isn't a lot of hard data to back it up. A recent study [PDF] from economists at MIT and Washington University in St. Louis offers some proof, though, showing how AI tools boost trade by allowing sellers to cross the language barrier. From a report: Looking at data scraped from eBay, the researchers compared sales between the US and Spanish-speaking Latin American countries before and after the shopping platform introduced AI-powered translation for product listings in 2014. (Specifically, the translation tool affected the titles of listings and search queries, but not product descriptions.) Prior to this eBay offered automatic translation, but the use of AI significantly improved the service's accuracy. You would expect that better translations would lead to greater sales, and that's exactly what the researchers found. Their data showed that sales from the US to countries affected increased 10.9 percent after the launch of the tool.

For more than three decades, Stephen Wolfram, a 59-year-old scientist, software designer and entrepreneur, has built software that has attracted an avid following among mathematicians and scientists. His Mathematica program for symbolic mathematical computation and its programming language, Wolfram Language, are favorites of the intelligentsia of the quant world in universities and corporations. Wolfram Alpha, one of his creations, is a unique search engine that does not forage the web, but culls its own painstakingly curated database to find answers. This week, the search engine turned 10. On the big occasion, Mr. Wolfram has shared some insight: It was a unique and surprising achievement when it first arrived, and over its first decade it's become ever stronger and more unique. It's found its way into more and more of the fabric of the computational world, both realizing some of the long-term aspirations of artificial intelligence, and defining new directions for what one can expect to be possible. Oh, and by now, a significant fraction of a billion people have used it. And we've been able to keep it private and independent, and its main website has stayed free and without external advertising.

As the years have gone by, Wolfram Alpha has found its way into intelligent assistants like Siri, and now also Alexa. It's become part of chatbots, tutoring systems, smart TVs, NASA websites, smart OCR apps, talking (toy) dinosaurs, smart contract oracles, and more. It's been used by an immense range of people, for all sorts of purposes. Inventors have used it to figure out what might be possible. Leaders and policymakers have used it to make decisions. Professionals have used it to do their jobs every day. People around the world have used it to satisfy their curiosity about all sorts of peculiar things. And countless students have used it to solve problems, and learn. The footage of the launch of Alpha, from 10 years ago.

Silicon Valley may have begun the era of social media, but its future could be in China. From a report: Tensions between America and China are pushing the world's two largest economies into an escalating trade war. President Donald Trump continues to threaten a tariff hike on more Chinese goods. So it's a strange time for one of the most popular social media platforms in the US -- in the world for that matter -- to be Chinese. Eschewing typical forms of Chinese soft power, TikTok could be the arrival of a subtler form of algorithmic influence, with sophisticated Chinese AI controlling what becomes viral content potentially shared among millions of young Americans. Which isn't unlike the global influence Facebook, Google, and Twitter have been exerting for the last decade. Silicon Valley may have begun the era of social media, but its future could be in China.

TikTok, a video-sharing app designed by a Beijing-based tech company called ByteDance, became the first Chinese-owned app to reach No. 1 in the US Apple App Store last November (it's since fallen to below 20th place). And oddly, its success in the States has come by embracing strongly features that fly in the face of American platforms but are central to Chinese social media: It aggressively mines user data, its videos require sound, it is largely oriented around a central recommendation algorithm instead of a network of friends and family, it emphasizes memes and challenges over individual influencers, and it continues to add addictive features to make it impossible to avoid bingeing as Silicon Valley offers dubious tools to curb screentime. TikTok's head of global marketing, Stefan Heinrich Henriquez, based out of its LA office, played down the app's Chinese provenance. In an interview with BuzzFeed News, he said there's nothing particularly different about working for ByteDance as opposed to an American tech company. Yet considering how TikTok's been covered in the US media in the last six months, it seems unlikely it can shake its reputation as a Chinese app.

An anonymous reader shares a report: Military prosecutors in the case of a US navy Seal charged with killing an Islamic State prisoner in Iraq in 2017 installed tracking software in emails sent to defense lawyers and a reporter in an apparent attempt to discover who was leaking information to the media, according to lawyers who said they received the corrupted messages. The defense attorneys said the intrusion may have violated constitutional protections against illegal searches, guarantees to the right to a lawyer and freedom of the press.

"I've seen some crazy stuff but for a case like this it's complete insanity," said attorney Timothy Parlatore. "I was absolutely stunned, especially given the fact that it's so clear the government has been the one doing the leaking." Parlatore represents Edward Gallagher, the special operations chief who has pleaded not guilty to a murder count in the death of an injured teenage militant he allegedly stabbed to death in Iraq in 2017. Gallagher's platoon commander, Lt Jacob Portier, is fighting charges of conduct unbecoming an officer for allegedly conducting Gallagher's re-enlistment ceremony next to the corpse. Gallagher's case has prompted intense media interest and become a cause celebre on the right. Donald Trump has demanded the case proceed quickly.

An anonymous reader shares a report: With just seven more months of support left for Windows 7, the South Korean government is planning to migrate to Linux, according to the Korea Herald, which notes that the Interior Ministry will begin "test-running Linux on its PCs, and if no security issues arise, Linux systems will be introduced more widely within the government. The Herald quotes the Interior Ministry as indicating that the transition to Linux, and the purchase of new PCs, would cost about 780 billion won ($655 million), but also anticipates long-term cost reductions with the adoption of Linux. The report doesn't mention a specific distro, instead "hopes to avoid building reliance on a single operating system." "Before the government-wide adoption, the ministry said it would test if the system could be run on private networked devices without security risks and if compatibility could be achieved with existing websites and software which have been built to run on Windows," the report stated.

MySpace, which recently lost 50 million files uploaded between 2003 and 2015, is not alone in encountering problems. As the internet grows, batches of old information are increasingly disappearing from it. From a story: Amazon cloud services, for example, also experienced a substantial outage in 2011 and another in 2017. Though temporary, and without actual loss of data, these outages left users without access to precious and important files for some time. Preserving content or intellectual property on the internet presents a conundrum. If it's accessible, then it isn't safe; if it's safe, then it isn't accessible. Accessible content is subject to tampering, theft or other sorts of bad actions. Only content that is inaccessible can be locked and protected from hacking.

The internet currently accesses about 15 zettabytes of data, and is growing at a rate of 70 terabytes per second. It is an admittedly leaky vessel, and content is constantly going offline to wind up lost forever. Massive and desperate efforts are underway to preserve whatever is worth preserving, but even sorting out what is and what is not is itself a formidable undertaking. What will be of value in 10 years -- or 50 years? And how to preserve it? Acid-free paper can last 500 years; stone inscriptions even longer. But magnetic media like hard drives have a much shorter life, lasting only three to five years. They also need to be copied and verified on a very short life cycle to avoid data degradation at observed failure rates between 3% and 8% annually. Then there is also a problem of software preservation: How can people today or in the future interpret those WordPerfect or WordStar files from the 1980s, when the original software companies have stopped supporting them or gone out of business?

Developers at Mozilla, Facebook, Cloudflare, and elsewhere have been drafting "BinaryAST" as a new over-the-wire format for JavaScript. From a report: BinaryAST is a binary representation of the original JavaScript code and associated data structures to speed-up the parsing of the code at the page load time compared to the JavaScript source itself. The binary abstract syntax tree format should lead to faster script loading across all web devices. Numbers related today by CloudFlare range from a 4% to 13% drop in load times compared to parsing conventional JavaScript source. Or if taking a "lazified" approach to skip unused functions, it can be upwards of 98% less time necessary. You can read more about it here.

Facebook's Chief Operating Officer Sheryl Sandberg sat down for an interview with CNBC calling for regulation for American companies but pushing against the idea of breaking up the social media company. From a report: "You could break us up, you could break other tech companies up, but you actually don't address the underlying issues people are concerned about," Sandberg said. "While people are concerned with the size and power of tech companies, there's also a concern in the United States with the size and power of Chinese companies, and the realization that those companies are not going to be broken up," Sandberg said.