Decades of U.S. air quality improvements may be slowing, and these areas have it the worst

https://www.popsci.com/story/environment/air-pollution-gains-slow-report-2018/

Smog over LA used to be commonplace in the '90s

Smog over LA used to be commonplace in the ’90s (steagnes06/Flickr/)

For decades, America has made progress on air quality. With emission regulations and advances in clean air technologies, the days of smog so thick it burned your eyes and lungs are virtually over.

But even with our gains, air pollution still contributes to one in every 25 early deaths. And our progress seems to be leveling off. Last week, a new report by U.S. PIRG Education Fund and Environment America Research & Policy Center found that in 2018, one-third of Americans lived in places with more than 100 days of degraded air quality. That’s 108 million people breathing polluted air for over three months—and 35 million more than than a similar report for 2016. “We focused on 100 days because it’s just unacceptable that for more than three months these communities were exposed to such bad air pollution,” says coauthor Morgan Folger, the clean cars campaign director at Environment America Research & Policy Center. “No one should even experience one day.”

The pollutants: ozone and PM2.5

The report focused on ground-level ozone and fine particulate matter (PM2.5). While ozone in the upper atmosphere blocks harmful ultraviolet rays, the same gas lower down irritates our lungs. Nitrogen oxides and volatile organic compounds, released from tailpipes and fossil fuel power plants, react with heat and sunlight in the atmosphere to form ozone. That’s why on hot, windless days, cities are the most hazy—ozone forms the visible smog that many city dwellers are familiar with.

Most recent data available are from 2018

Most recent data available are from 2018 (Infographic by Sara Chodosh/)

Fine particulate matter, sometimes just called soot, is made up of tiny particles less than 2.5 micrometers in diameter. The particles include organic compounds, combustion particles, and metals. PM2.5 also comes from burning fossil fuels—especially diesel-powered trucks—and other sources like brake pads and wildfires.

These powerful pollutants can contribute to respiratory illnesses, mental health conditions, and cancer, and have been tied to many other conditions. Children growing up breathing polluted air are vulnerable to impaired lung development and long term function. Pregnant women and the elderly are also especially susceptible.

The most polluted regions

For the recent analysis, Folger and her team used EPA data collected at air quality sensors installed across the United States. To see how the pollution levels overlapped with population, they used census data. As for what constitutes “degraded air quality,” the report uses concentrations that the EPA describes as “moderate” air quality. Folger says this level is the point at which those more sensitive to air pollution—including people with respiratory illnesses or children—begin to experience health effects.

The report found that 89 urban areas and 12 rural counties had more than 100 days of polluted air in 2018. An additional 157 millions Americans experienced 31 to 100 days of impaired air. And every state, even Alaska and Hawaii, had regions that suffered at least a month of diminished air quality. “I think it is really surprising that there were way more metropolitan areas and so many more people [impacted by pollution] this year than there were in 2016,” says Folger. “It kind of shocks you—a third of the population could be impacted by this.”

Many places that had a problem with one pollutant also had elevated concentrations of the other. However, there’s some variation. Particulate matter has a lot of different sources, explains Folger. High levels in western states could be due to the rise of catastrophic wildfires in recent years. In other states, proximity to coal-fired power plants might instead determine how much soot pollution there is.

Most recent data available are from 2018

Most recent data available are from 2018 (Infographic by Sara Chodosh/)

Is air quality going backwards?

Don’t freak out and stay indoors just yet. “There are a lot of days that might be in the moderate range, but the vast majority of people really are not impacted by pollution at that level,” says Kevin Cromar, director of the air quality program at New York University’s Marron Institute of Urban Management, who was not involved with the report. Pollution levels at the lower end of what the EPA considers “moderate” are actually “pretty good air quality” for most people, says Cromar. However, he says there are still many health gains that we could make by addressing our pollution.

In the big picture, we’ve had immense progress in air quality, says Jason West, an atmospheric scientist at the University of North Carolina who was not involved with the report. And that’s largely thanks to the regulations we’ve enacted, such as the 1970 Clean Air Act. A 2018 study found that air quality improvements between 1990 and 2010 avoided approximately 35,800 particulate matter-caused deaths and 4,600 ozone-caused deaths.

But there are signs that this positive trend might be slowing down. “2018 had more days of pollution than each of the previous five years,” the authors of the new pollution report conclude. The American Lung Association’s most recent “State of the Air” report found a similar trend; between 2015 and 2017, more cities suffered from days of highly polluted air than between 2014 and 2016. Another study by researchers at Carnegie Mellon University reached a similar conclusion: while particulate matter pollution went down nationwide by 24 percent from 2009 to 2016, it rose by 5 percent from 2016 to 2018.

And while particulate matter is overall down from the previous decade, the same isn’t true for ozone. “In ozone, we haven’t seen that level of improvement,” says Cromar. “It’s remaining stubbornly high in most parts of the US.” As a recent report on air pollution-related deaths led by Cromar found, while the deaths attributable to particulate matter have gone down since 2008, the health impact of ozone pollution has remained about the same. And as populations in polluted areas grow, that means more people will be breathing that same level of ozone, leading to more pollution-related deaths.

The biggest polluters

Transportation—including passenger vehicles and shipping trucks—is a major contributor of air pollution. Vehicles burning gas and diesel release nitrogen oxides and volatile organic compounds into the air, which can form smog or contribute to particulate matter. While vehicles have become cleaner, some of those gains are offset by more people driving more miles every year. Other contributors include the fossil fuels we burn for power, smoke from wildfires, and industrial processes like chemical manufacturing.

As for the increase in air pollution in the past couple years, it’s impossible to say for sure what’s at play. West says that natural variability—such as in weather patterns, which can both disperse and concentrate pollutants—can make it hard to tell if there is actually an upward trend in emissions.

Folger has some suspicions. Driving miles are going up, and in the western states there’s been an increase in wildfires. She also says that the EPA has been lax on enforcing their own rules by not taking action when states are exceeding pollutant thresholds.

To make matters worse, climate change is expected to further reduce air quality. Increased temperatures speed up the reaction that forms ozone. Also, water-stressed plants release organic compounds that can also add to pollution under climate change. “We’ve seen 19 of the hottest years on record in the past two decades,” says Folger. “We’re definitely experiencing warmer and warmer days—that’ll mean that air pollution gets worse.” A 2017 study in Nature Climate Change estimated that, with our an emissions trajectory like the one we’re on now, we’ll have an additional 43,600 ozone-caused deaths and 215,000 PM2.5-caused deaths in 2100.

We need global climate action to protect local air quality

While climate change threatens to make air quality even worse, the flip side is that addressing the climate not only provides the benefits of slowing warming globally, but also improving air quality locally. Mandates for zero emissions vehicles, improved public transportation, and transitioning to renewable energy all achieve these dual goals. “If we take action to reduce greenhouse gas emissions, we reduce air pollution at the same time,” says West. “The air pollution benefits we would see would be immediate and local to where those actions take place.”

But the current administration is moving policy in the opposite direction, from weakening carbon emission rules for power plants to stopping states from setting their own tailpipe standards. “Those efforts are going to lead to worse air quality and health impacts,” says Cromar. “We need to be vigilant and adopt policies that improve air quality.”

via Popular Science – New Technology, Science News, The Future Now https://www.popsci.com

February 4, 2020 at 12:37PM

RIP Stadia? Nvidia’s newly launched cloud-gaming service is (mostly) a stunner

https://arstechnica.com/?p=1650656

RIP Stadia? Nvidia’s newly launched cloud-gaming service is (mostly) a stunner

Imagine it: a video game streaming service that lets you log on to the cloud, access games you already own on multiple storefronts (including free-to-play fare), and play them on any Windows, Mac, or Android device. You’d need nothing more than a broadband connection. You’d get snappy, low-latency performance, including tolerable stats on your router’s 5Ghz wireless band. And you could access all of this for free.

All of this was what we had hoped to get out of Google Stadia, which arrived in November with promises of a tantalizing “Netflix for games” model. But that streaming service’s launch was immediately hobbled with device restrictions, pricing confusion, and a terribly limited (and closed) games library. Instead, the above description comes courtesy of an utter surprise, launching today in both free and paid tiers: Nvidia’s GeForce Now.

After a months-long closed beta, GeForce Now opens to the public sometime today (perhaps the moment this article goes live). Download its app on a supported device, then hook up your preferred control method (gamepad, mouse+keyboard) and connect to one of Nvidia’s servers. You’ll boot into a virtualized Windows PC on the cloud, which then loads one of “hundreds” of supported games as sold by Steam, Epic Games Store, Battle.net, uPlay, the Bethesda Launcher, and Origin. From there, the server’s gameplay feed and your button presses go back and forth so that your low-powered device can stream high-end 3D video games.

DOOM 2016 on a low-end Macbook? Tekken 7 on a smartphone? With enough bandwidth, GeForce Now can make it happen, and you can use the game licenses you already own.

The service isn’t perfect—with some particularly baffling issues at launch. And I fear that its first-week rush of new free players will lead to networking nightmares and boilerplate replies about Nvidia “being surprised by demand.” (If Nvidia’s PR team would like, I have 4,000 versions of that sentence littering my games-journalism inbox. You can borrow any of them.) But ahead of today’s influx of new players, I was able to confirm enough about peak performance and general usability to confirm a surprising truth: even if Nvidia fumbles the launch with networking woes, GeForce Now is still the new game-streaming service to beat. It’s that good.

So far, so solid

  • There’s plenty of blur to account for in DOOM 2016. Here’s an example of how that can look in action, as taken from real-time GeForce Now gameplay.

  • An early vista in the DOOM 2016 campaign. Notice the FPS counter at the top-right? That’s with all settings cranked to maximum at 1080p rendering resolution. You’ll only see 60fps on a GeForce Now stream, but the added frames don’t introduce local tearing.

  • More DOOM motion blur.

  • When GeForce Now performs at its best, mid-animation screens like this one from Tekken 7 look a lot crisper than you might expect.

  • Since this is logging in to my existing Steam account, GeForce Now recognizes which Tekken 7 DLC I own (and don’t own). Negan, you’re not balanced, but I love ya, anyway.

  • They’re not exciting screens, but they are all taken from my Windows 10 machine running GeForce Now’s 1080p feed.

  • Pretty sharp stuff as a streamed game, Sonic Mania.

  • Best of all, we can capture benchmarks, like this Wolfenstein Youngblood test. This is with all settings maxed out and demanding ray tracing features enabled.

  • Civilization VI benchmarks: CPU version.

  • Civilization VI benchmarks: GPU version.

  • But here’s the tricky thing: You never know what kind of virtual machine performance you’re going to get. This is an Assassin’s Creed Odyssey benchmark run at its default medium-ish settings.

  • And here’s another AC: Odyssey benchmark, only as you can see here, it’s set to the “ultra-high” preset and achives a 61fps average. This instance was powered with 3.5GB of VRAM, as opposed to the other instance’s 2GB.

Here’s what I loved about my pre-release tests of GeForce Now: I could play games I already own on my crappiest devices with incredible performance results. While connected via Ethernet on my home-office connection, rated for 250Mbps down, 10Mbps up, I enjoyed nearly latency-free performance on a majority of my tested games. Fortnite, Apex Legends, Destiny 2, and the 2019 remake of Modern Warfare: I played these on mouse and keyboard via GeForce Now and barely noticed their inherent latency.

Yes, I’m as stunned as you are. And if you don’t believe me, you won’t want to see the following sentence: I could play the sensational 2017 retro throwback Sonic Mania via GeForce Now without missing a single jump or dash.

What’s more, I can go into every supported game’s settings menus and tinker to my heart’s content, because GeForce Now effectively leases a Windows gaming PC to each of its users. I’m not accessing a game’s limited build with a missing options menu. Fine-tuned settings like ambient occlusion, shadow resolution, even v-sync and super-sampling: they’re all mine to tweak. This became starkly clear when I loaded

Assassin’s Creed Odyssey

, a notoriously demanding game from 2018 that, up until this week, hadn’t received a 60fps option on anything other than locally owned computers.

You cannot run AC:O at 60fps on Google Stadia. Nvidia’s GeForce Now, on the other hand, let me downgrade and massage the game’s settings to not only reach a 60fps threshold but test it with the game’s built-in benchmark (only available on PC). The same tweak-for-60fps awesomeness goes for other PC games on GeForce Now that console owners are stuck playing at 30fps, including Destiny 2 and No Man’s Sky.

To be clear, I am not suggesting that GeForce Now’s streamed gameplay looks better or runs faster than a powerful PC in your own home. But during my clearest tests, the results were an incredible substitute for owning a gaming-caliber PC.

A future paid tier: More RTX, fewer timers

I have more praise to offer, but I should get some criticisms out of the way. I don’t want to mislead anyone about GeForce Now’s launch-day state. Some of the issues are mere road bumps. Others count as potential red flags.

Let’s start by clarifying the cost situation for GeForce Now, because its “free” sales pitch comes with some asterisks. Nvidia’s streaming service will eventually operate with a mix of free and paid memberships. While Google Stadia also has a “free versus paid” dichotomy, Nvidia’s model differs significantly.

  • A handy infographic about GeForce Now.

    Nvidia

  • Notice what’s missing in this supported-device rubric: iOS. Even Chromebooks have an estimated time window listed here; Nvidia had nothing to say about iOS estimates, on the other hand.

At launch, anyone can join GeForce Now’s “founders tier,” which will be free to all interested users for the first 90 days, no credit card required. Once that trial runs out, users can lock in a $5/month rate for their first year. Nvidia representatives say that this rate will increase at some point in the future. “I wouldn’t expect [the raise] to be more than double,” GeForce Now GM and VP Phil Eisler told Ars Technica in a phone interview.

Unlike Stadia, GeForce Now’s “premium” membership does not affect general streaming performance, and it doesn’t (currently) come with any bonus games. Whether you’re on the free or paid tier, you’ll receive the same maximum streaming feed of 1080p resolution at 60 frames per second. Instead, premium users will get to skip one possible headache on the free tier: server queue times. Free users will be bumped to the back of the queue line, while paying members skip ahead.

What’s more, free users will get punted from GeForce Now every 60 minutes. Those free players can log back on for as many one-hour sessions as they want, Nvidia has confirmed, with the caveat that they might have to wait in a queue whenever they return. “This has to do with our promise to founders members, that they won’t have to wait,” Eisler said. “The busiest time is in prime time, at 8pm in the evening. We need a way to ensure that free members don’t jump on at 3pm and camp on the capacity.” Eisler didn’t clarify how the general userbase will be affected by this for the first 90 days, when every user will have identical free-trial memberships.

The other perk of GeForce Now premium membership is access to RTX graphics toggles in supported games. At launch, GeForce Now supports only three games in RTX mode: Metro Exodus, Deliver Us The Moon, and Wolfenstein Youngblood. In good news, at least, these games can all have their settings cranked to maximum on GeForce Now (including “high” or “maximum” settings on demanding ray tracing toggles) and run at average rates exceeding 60fps, at least according to our cursory benchmarks over this past weekend. Boot these games via GeForce Now in the free tier, on the other hand, and they’ll be loaded on a server without RTX support—and thus won’t have any RTX-specific toggles in their options menus.

Good news on storefronts; bad news on reaching them

But wait, you might say to yourself. Aren’t there more than three PC games from the past year-plus that support DirectX 12 ray tracing that Nvidia has loudly advertised as reasons to buy one of their fancy RTX graphics cards? You’d be correct. But many of those, including Ars’ 2019 Game of the Year Control, cannot currently boot on GeForce Now.

No RTX review here

Until GeForce Now bolsters its library of games with ray tracing support, we’re not going to spend time reviewing the pros and cons of RTX elements in streamed games. We’ve talked about ray tracing in the past, and it can look incredible in compatible games, so a $5/mo subscription option seems easier to test than a $400-and-up graphics card. For now, at least, GeForce Now’s superb handling of blocky color artifacts and black crush bode well for future RTX-loaded games on the service.

This is where GeForce Now’s patchy games library comes into bright relief. The great news is that Nvidia has concluded something that upstart services like Stadia have failed to appreciate: gamers don’t want another freaking marketplace.

“We do not have a PC games store,” Eisler said. “Gamers told us strongly that they prefer to connect to their existing PC stores. We’ll support any and all PC stores. Connect to your existing online PC game store accounts. If you purchase a new game, you own it on that platform, and you can download it on your PC later. And we’ll support free-to-play games.”

I love this idea, Nvidia, and I wholeheartedly support it. But I can’t say the same about the current execution.

For starters, GeForce Now doesn’t work as a clone of your existing game-purchase libraries. As I mentioned earlier, GeForce Now can log in to Steam, Epic Games Store, EA Origin, Ubisoft uPlay, and Blizzard Battle.net. Other services are not currently compatible. Even with this storefront limitation, you don’t boot into one of Nvidia’s cloud instances and browse through those apps’ libraries. You can only select games within GeForce Now’s app.

  • Let’s dig into the weirdness of GeForce Now’s interface on Windows, which starts with occasional failures to boot games due to… well, I don’t know, in this case. I could quit and reboot a few times to get into a session when this endless-waiting issue came up. I hope more specific error guidance will appear for players once servers start filling up.

  • Upon booting the app for your first time, you’ll have to wait for the app to analyze your network environment.

  • Sometimes, when you pick a game in the PC client, you’ll be shown the PC Steam client while you wait for the game to boot. When you load Steam games on smartphones or TV devices, you’ll instead see the Steam Big Picture interface.

  • Each virtual Windows instance must grab and install apps upon each boot, which it admittedly does incredibly quickly. Sometimes, you have to tap to confirm the download; most of the time, it does this part automatically.

  • In one instance, however, GeForce Now’s virtual instance tried to stream from the very computer I was running my tests on. No, GeForce Now. Don’t double-stream me.

  • But in good news, I could run benchmarks!

  • Weird error messages filled my screen after quitting a session of Fortnite.

  • Want to try and boot games that aren’t listed in the GeForce Now app? You can try to do so by booting directly into Steam.

  • However, this mostly results in error messages like the one above. It takes a lot of hunting to find supported titles that aren’t already exposed by Nvidia’s front-end software.

More specifically, you tell GeForce Now which game you want to play, and it will load a virtualized PC environment with that game’s launch code (i.e. “C:\\Steam\Steam.exe -your_game.exe -shutdown-upon-app-closure” or something). Though you’ll be within a familiar PC game launcher interface, any attempts to boot other games you own in that instance will bring up error messages, saying the games aren’t supported. (As the above gallery shows, there’s also an inherent awkwardness of being shown various Steam and EGS prompts when trying to load a game, as opposed to the elegance of competitors’ games “just loading.”)

Worse, GeForce Now has no interest in simplifying the process of finding your compatible games. As of press time, you’re required to manually search within Nvidia’s app for every game you own, then add it to the GeForce Now app’s “library” tab. Nvidia has yet to publish a comprehensive list of supported games for the service’s public launch. Worse, the service used to share a comprehensive list, but that’s been taken down as of press time.

As a result, this weekend, I spent half an hour manually typing in every game I own across all five services, and additional games I don’t, just to determine what I could test. And to top off that madness, the service comes with a weird exception: certain Steam games will work in GeForce Now, despite not appearing in the GeForce Now app. But to figure out which games those are, you have to—I’m not making this up—boot into GeForce Now’s Steam instance, then manually double-click on every game you own to see if there are any loopholes that you can sneak onto the cloud service. Doing this mostly brought up error messages for me, with the exception of oddball fare like Metal Wolf Chaos XD.

No thanks. I’ll just wait for Nvidia to get its act together and issue a formal list like every other gaming-service retailer in existence.

[Update, 1:17 p.m.: A reader pointed us to a convenient, publicly available JSON file on Nvidia’s site, which can be translated using built-in Firefox tools or a site like JSON Formatter to get a slightly messy, alphabetical list of every game currently supported by GeForce Now. Based on my weekend of testing, this list of 556 games appears to be accurate, though it’s missing the “loophole” games mentioned above. We’d prefer an official Nvidia list, but we’ll use this workaround in the meantime. Thanks, anonymous tipster!]

Is your library compatible? You get to find out!

Perhaps this is to obscure the fact that Nvidia’s compatible game selection is currently scattershot. As one example, the previous full list of compatible GeForce Now software used to list all three games in the modern Tomb Raider trilogy; all three have since been removed, with no clear explanation as to why. Is this because the games’ publisher, Square Enix, has since signed an exclusivity deal with Stadia? When pressed, Nvidia’s representatives forwarded the following statement to Ars Technica:

We work with our partners on an on-going basis to add games to GeForce Now. From time to time, publishers may request that a game be disabled. It can be for various reasons. We can’t go into specific details as to why a publisher may have asked that, but we do encourage GeForce Now members looking for specific games to request that they be added by reaching out to both us and the publisher.

In terms of my personally owned games libraries, GeForce Now supports roughly 140 of the nearly 700 non-VR games in my Steam library. Nearly every game sold by Battle.net works here, with the exception of the newly launched WarCraft III: Reforged, while Ubisoft’s uPlay has a few recent Assassin’s Creed, Far Cry, and Tom Clancy games, but it’s missing quite a few of those. Bethesda and EA currently only appear to have one compatible game for each of those launchers: Fallout 76 and Apex Legends, respectively. (You’ll need the Steam version of all other Bethesda games on GeForce Now, while the lack of mainstream EA biggies like Madden and FIFA is a bummer.)

Epic Games Store works seamlessly on GeForce Now if you want to play Fortnite, which is probably the most crucial game for that launcher, in terms of average-user outreach. But EGS is otherwise pretty badly supported as a launcher on GeForce Now, with only Borderlands 3, Dauntless, and Metro Exodus standing out as recent big-name games with GeForce Now support. (No Untitled Goose Game? To that, I must say: HONK!) Also, as of press time, a number of games that work on both EGS and Steam can only be played via GeForce Now if you own the games’ Steam licenses.

  • Until Nvidia releases a full list of compatible titles, we’re left awkwardly sorting them by hand. Here’s a look at the service’s “featured” tab of compatible games, which are at least an indication of the range you can expect.

  • More of Nvidia’s choices of “featured” games. Remember: You need to own the game on another service before you can boot it on GeForce Now. Neither its free or paid tiers come with free, included games.

  • The last of their early “featured” tab of games. Nvidia says to expect more compatible games in the coming weeks and months. And while we’re here, one other nitpick: You cannot currently sort the service’s “library” interface as you see fit (alphabetical, release date, etc.).

That being said: I am generally happy with the service’s game compatibility list as of its public launch, especially when I imagine someone wanting to use GeForce Now to play solid PC games when they either don’t own a gaming PC or might be away from their favorite rig. Want to play “one more turn” in a Sid Meier classic? Pick from either Civilization V or Civilization VI; they’re both CPU- and GPU-hungry enough to make their GeForce Now inclusion welcome. Want to rip and tear? GeForce Now supports the F2P deathmatches of Quake Champions and the technically impressive campaign of DOOM 2016 (which, curiously, still isn’t available on Stadia in spite of Google’s ballyhooing about that game).

Apples to apples to apples

As of press time, GeForce Now only has a few apples-to-apples comparisons: the current Project xCloud “closed beta” on smartphones and Google Stadia’s “Founders Edition” on desktops. I can load nearly identical scenarios in these two comparisons, and against both of those, GeForce Now has the overall lead.

Currently, xCloud’s closed beta only works on Android smartphones with a maximum resolution of 720p, so I connected an Xbox One controller to my Samsung Galaxy S9 via Bluetooth, then connected that phone to my home’s 5GHz wireless band and booted into sessions of Tekken 7 and Destiny 2. In the former, I loaded identical stages in the game’s offline practice mode and tapped individual attacks. In the latter, I simply puttered around in the character-select screen, which allowed me to move a mouse-like cursor on the screen with the analog joystick.

In both cases, GeForce Now enjoyed a sliver of a lead in terms of latency, one that I was able to verify six tests in a row. In my first of three Tekken tests, the GeForce Now version failed to process a few of my button taps. I couldn’t reproduce the issue in that version’s other tests, so I offer it as an anecdotal note—especially since wireless tests include so many connectivity variables.

To that end, at least on GeForce Now, I could sometimes expect a whopping 60fps refresh in a wireless session, and, man, do games like Tekken and Destiny feel good in GeForce Now’s wireless mode at that rate. Whether it holds to that mark or not, at least in my testing, boils down to your wireless environment. There’s currently no way to guarantee a 30fps lock on GeForce Now’s mobile app; if you prefer stability over maximum frames, you’ll need to find a framerate cap in a given game’s options menu (which isn’t necessarily common). Project xCloud, conversely, emulates an Xbox One S’ power while also adding its own 30fps cap (even though the Xbox One S version of Tekken 7 otherwise runs at a native 60fps).

  • This gallery compares Metro Exodus within the GeForce Now app and within a Stadia instance on a Chrome Web browser. The first image is always GeForce Now.

  • The second image is always Stadia. The field of view in the GeForce Now version is narrower, which I didn’t realize until I’d concluded my tests of the game.

  • GeForce Now. This comparison is all about seeing how each platform handles black crush. You can see some minor artifacts here…

  • …but here, on Google Stadia, the artifacts are much more pronounced.

  • GeForce Now.

  • Google Stadia.

  • GeForce Now. This has RTX effects enabled, which results in “more realistic” light bounces in the detritus at the top of the screen.

  • Google Stadia. That “realistic” light-bounce stuff doesn’t always look better in Metro Exodus, to be fair.

My two overlapping licenses on Google Stadia and GeForce Now are Metro Exodus and Destiny 2, so I booted both on the same Windows 10 PC connected to my router via Ethernet cable, then tested cursor movement and first-person action on both platforms. It’s definitely easier to discern floaty streaming latency with a mouse than with a joystick, and both platforms revealed a smidge more latency in Destiny 2‘s menus than other games, for whatever reason. I then hopped into combat, where I found that, once again, GeForce Now led by a hair on both games. More noticeable than that hair was GeForce Now’s apparent superiority when handling dark scenes. Both platforms have their share of blocky image-compression artifacts on occasion, particularly in dark scenes, but GeForce Now wins in a comparison—and that’s important if you care about the subtleties of ray tracing.

There’s another comparison point for these two services: set-top boxes. I own a Chromecast Ultra, which works with Stadia, and an Nvidia Shield TV 2019, which works with GeForce Now, and I tested Destiny 2 on both of those on my 4K TV using an identical HDMI cord and identical Ethernet cable. Here, the “noticeable hair” went in favor of Stadia, but that’s less of an apples-to-apples comparison. The official Stadia Controller is required for play on a Chromecast Ultra, and it connects directly to your Wi-Fi router, as opposed to Shield TV only accepting Bluetooth controller connections. Still, Destiny 2 is currently a great showcase on Chromecast Ultra in ideal network conditions, owing to its 4K resolution and incredibly low latency. (This is the confusing part: Stadia can jump all the way to 4K resolution, but only when used on a Chromecast Ultra, and only for games that are coded to support this resolution jump. Otherwise, it maxes out at 1080p.)

But, honestly, I lost roughly two hours to testing Destiny 2 on both living room boxes, one hour each, without enough latency to halt my interest in either platform.

A chicken and an egg in equally safe hands

Bandwidth?

The highest-quality setting in GeForce Now estimates a bandwidth cost of 15GB per hour. That’s on par with Google Stadia’s 15.75GB/hour estimate. If your home Internet service comes with bandwidth caps, be warned, especially since the app doesn’t include any form of bandwidth tracking or “alert me at a certain threshold” settings.

Ultimately, a game-streaming platform is only as good as its Internet connection, which can vary based on server load, your ISP, or your ability to use Ethernet-connected devices. There’s no telling whether my impressive GeForce Now tests came because I live near one of its data centers, or because my home connection is solid, or because I did all my tests before thousands of free users piled onto the service. Eisler says Nvidia’s closed-beta waitlist exceeded 1 million users before today’s launch and that roughly 300,000 people in all took part in the closed beta test.

Eisler’s comments during our interview hinted to a server capacity in the vicinity of 600,000 to 700,000 simultaneous users across 20 server farms across the globe. (As of press time, we’ve been told that the service will launch today in North America, “most” of Western Europe, Russia, Japan, and South Korea.) There’s no telling whether my twitchy, Sonic Mania-worthy bandwidth tests from the past few days will plummet as more interested players pile onto GeForce Now and claim their free 90-day trials.

The best news about GeForce Now is that my positive impressions will cost interested users zero cash, and very little time, to confirm for themselves. At the bare minimum, anyone can claim a free-to-play game on a shop like Steam or EGS, then load it in GeForce Now to test its stodgy game-search interface and its sometimes impeccable network performance. Should that work out, then they can start loading other software they already own, or be so crazy as to play a PC-grade fighting game on a smartphone against other live PC opponents. (I handed my smartphone to a decent Tekken 7 player during my testing period, and he was able to win a ranked multiplayer match on GeForce Now with only one noticeable “I missed because of lag” complaint on his part.)

Even if its performance has a bad day, week, or month, GeForce Now will still likely change the current game-streaming competition. Its value proposition is arguably the safest one yet in the streaming world: should GeForce Now fail or shut down, you’ll still be able to take your games library to another computer. We’ve yet to see how Microsoft will handle streaming access and game licenses for the final, non-beta version of Project xCloud, but Stadia is an incredibly closed platform in comparison, and

PlayStation Now

isn’t much better in terms of only guaranteeing access to games while you’re a paying subscriber.

With GeForce Now, Nvidia arrives with its chicken and its egg in equally safe hands. And the competition may very well have to respond.

via Ars Technica https://arstechnica.com

February 4, 2020 at 10:34AM

Check out the first-ever electric car designed by Porsche, the 1898 P1

https://arstechnica.com/?p=1651027

  • The P1 was lost for 116 years, then found in a warehouse in Austria.

    Porsche

  • An illustration of the P1.

    Porsche

  • A rear-mounted electric motor.

    Porsche

  • When you think about it, this was as futuristic for 1898 as the Taycan’s screen-filled interior is more than a century later.

    Porsche

  • I’m not sure the P1 had special aerodynamically optimized wheels, unlike the Taycan. Note the P1 engraved onto the end of the axle.

    Porsche

  • In 2014, the P1 went on display at Porsche’s museum in Stuttgart, Germany.

    Porsche

With the Porsche Taycan finally making its way to customers, we thought it would be worth looking back and remembering Porsche’s first battery-electric car. In this case, that means all the way back to 1898 and the Egger-Lohner electric vehicle, C.2 Phaeton model. Thankfully, Mr. Porsche himself referred to the car simply as the P1.

As a young man, Ferdinand Porsche was fascinated by electricity and chose not to follow in the footsteps of his small-town tinsmith father. In 1893, he moved to Vienna at the age of 18 to begin an apprenticeship at electrical firm Bela Egger & Co. while simultaneously enrolling as a student at the Imperial Technical University in Reichenberg.

This ambition and hard work paid off, as he was given a management position at Egger & Co. within just a few years of starting as an apprentice. 1897 was a milestone year for Mr. Porsche: now the head of the company’s testing department, he built an electric wheel-hub motor, he met with carriage manufacturer Jacob Lohner & Co., and he began working on an electric car. Ferdinand Porsche was still just 22 years old.

As a collaboration between electrical firm Bela Egger & Co. and Jacob Lohner & Co., the Egger-Lohner electric vehicle, the C.2 Phaeton model, was a novel merging of two worlds into the newly created world of automobiles. The Lohner firm thought that electric cars would be particularly marketable given their lack of noise and exhaust fumes. They commissioned Porsche to design and create the electric drivetrain while they handled the chassis and body work.

The very first Porsche car?

The result, which debuted on the streets of Vienna on June 26, 1898, was the P1. It is prescient that Porsche had the confidence and ambition to nickname the car the P1, trusting in himself that there would be more Porsche cars to come. It was Porsche’s first car, and it was also among the first vehicles registered in Austria when it debuted on the streets of Vienna on June 26, 1898.

The P1 itself was quite a machine—for the time and for today as well. Foregoing Porsche’s new wheel-hub motor, the P1 employed a rear-mounted drive unit. That’s right, the first car that Porsche designed and built had its motor in the back! Mr. Porsche’s “octagonal electric motor”—so named because of its housing shape—weighed in at 287lbs (130kg) and produced a bracing 3hp (2.2kW).

With only that single-digit power, 1,100lbs (500kg) of batteries and another 1,897lbs (860kg) of vehicle to move around (that’s a total vehicle weight of 2,997lbs/1,359kg for those counting at home), the top speed of the P1 was 21mph (34km/h). However, just like the modern Taycan, the P1 had an “overboost” function that pulled a full 5hp (3.7kW) out of the engine for dealing with steep inclines.

The similarities don’t end there, either. Like the Taycan, the P1 did not use a single gear like most modern EVs. Instead, it sported a 12-speed controller that put power to wheels. Six of those 12 speeds were for forward control, two were actually reverse, and four acted as brakes. If not driven at top speed, the maximum range of the P1 was a robust 50 miles (80km)—farther than many gasoline-powered prototypes of the day.

Porsche wins his first-ever race

The first Porsche also won its first race, beginning the pedigree way back in September 1899. The event was a 24-mile race in Berlin meant as an international exhibition of 19 electric vehicle manufacturers, and the P1 won it handily by a full 18 minutes. Mr. Porsche himself drove the race along with three passengers (as required by the rules), and he successfully navigated gradients, high-speed sections, and an efficiency test. More than half of his competitors failed to even reach the finish line, and others were disqualified by their failure to maintain the minimum speed requirement. The P1 won not only the race outright, but also the top place for efficiency by consuming the least energy while in urban traffic.

Four P1s were made during this time, after which he joined Lohner as chief designer and went on to create the Lohner-Porsche Semper Vivus, which is now recognized as the

world’s first hybrid car

, one we’ve featured on the site in the past. The Semper Vivus, naturally, was also raced by Porsche himself. It would seem you could not keep the man, or his cars (all 122 years of them), away from racing.

Taycan, you’re up next.

Listing image by Porsche

via Ars Technica https://arstechnica.com

February 4, 2020 at 08:12AM