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Every Comic-Con 2019 trailer: Netflix's The Witcher, The Walking Dead, It 2, Top Gun sequel, Cats – CNET

Henry Cavill, Taylor Swift, Tom Cruise, Pennywise. See everything here!
Source: CNET

The Witcher trailer reveals Netflix fantasy adventure at Comic-Con – CNET

We finally get to see the first footage of Henry Cavill’s Geralt of Rivia in the TV adaptation.
Source: CNET

Moon bricks could keep the lights on and the heat up in Lunar colonies

There may be no “dark side” of the Moon, but when and where it is dark, it’s dark — and stays that way for two weeks. If we’re going to have colonists up there, they’ll need to stay warm and keep the lights (among other things) on for the long lunar night. Turns out bricks made of Moon dust could be part of the solution.

Of course they will use the readily available solar power during the lunar day, and you might think that they could just charge up some batteries to last them through the night. But batteries are large and heavy — not the kind of thing you want to pack for a trip to the Moon.

How else could lunar colonies store energy? The European Space Agency partnered with Azimut Space to find out whether a sort of improvised geothermal energy solution would be feasible.

The one thing they’ll have a lot of up there is dust — lunar regolith, to be precise. And thanks to samples brought back by the Apollo missions, we’re pretty familiar with the stuff. So the team simulated some using terrestrial materials to see what they could do with it.

“In this study, we used Earth rock with comparable properties to Moon rock, crushed into a powder until the particles matched the size of those in the lunar regolith,” said the ESA’s Aidan Cowley, who oversaw the project.

The faux-regolith was compressed into bricks, which were then wired up and heated using current like what they might be able to pull from solar cells on the Moon’s surface. The brick was then placed in an imitation lunar environment — near-vacuum and around -150 degrees C — and hooked up to a system that could withdraw heat from the bricks and convert it to electricity.

Artificial regolith brick in a vacuum chamber“Using lunar regolith to store heat on the Moon would provide us with an abundance of readily-available material meaning space travelers wouldn’t need to take much from Earth,” said Azimut’s Luca Celotti.

The ESA write-up says only that the process “worked well,” which isn’t particularly descriptive. I’ve contacted Azimut for more information. It seems, however, that if the method had worked but poorly, we wouldn’t be hearing about it at all.

There are plenty of fundamental challenges in creating what amounts to an enormous, crude battery out of Moon dust, but if it works even marginally well it could become an important part of the energy and heat storage suite that any lunar colony would have to employ.


Source: TechCrunch

Heatwave 2019: It's hot and Twitter is losing its cool – CNET

It’s just hot, ok.
Source: CNET

This site shows how much Arctic ice will melt the next time you fly – CNET

Thanks to Shame Plane, first class might not seem so great anymore.
Source: CNET

Amazon Warns Customers: Those Supplements Might Be Fake

The company confirmed that it had notified users earlier this week that the Align supplements they purchased were likely counterfeits.
Source: Wired

Walmart slashes $70 off the Acer Chromebook Spin 11 for summer clearance sale

Need a laptop that you’ll just use primarily for web browsing? Buy a Chromebook. Chromebooks are cheaper alternatives to normal laptops, like the Acer Chromebook Spin 11. It’s available on Walmart for only $229, which is $70 less than its original price.
Source: Digital trends

Gadget Lab Podcast: Twitter’s Major Design Overhaul

Twitter has launched its first major redesign in several years. The question is whether it’s enough to make a dent in the hate and harassment.
Source: Wired

Medallia stock up 76% following first day trading on the NYSE

Customer experience management platform Medallia (NYSE: MDLA) rose more than 70% in its New York Stock Exchange debut Friday.

The nearly two-decades-old business priced its shares at $21 apiece, the top of its proposed range, Thursday evening and traded as high as $39.54 the following morning. Medallia closed up roughly 76% at about $37 per share on Friday.

Medallia sold a total of 15.5 million shares in its IPO, raising $326 million at a $2.5 billion valuation in the process.

San Mateo-headquartered Medallia, led by chief executive officer Leslie Stretch, operates a platform meant to help businesses better provide for their customers. Its core product, the Medallia Experience Cloud, provides employees real-time data on customers collected from online review sites and social media. The service leverages that data to provide insights and tools to improve customer experiences.

The company is backed by four venture capital firms: Sequoia Capital — which owned a roughly 40% pre-IPO stake — Saints Capital, TriplePoint Venture Growth and Grotmol Solutions, the latter which invested a small amount of capital in 2010. Medallia has raised a total of $268 million in equity funding, including a $70 million Series F funding earlier this year.

Sequoia’s 40% stake was worth upwards of $1.8 billion at Medallia’s high price Friday.


Source: TechCrunch

TikTok tests an Instagram-style grid and other changes

Short-form video app TikTok, the fourth most downloaded app in the world as of last quarter, is working on several new seemingly Instagram-inspired features — including a Discover page, a grid-style layout similar to Instagram Explore, an Account Switcher and more.

The features were uncovered this week by reverse-engineering specialist Jane Manchun Wong, who published screenshots of these features and others to Twitter.

A TikTok spokesperson declined to offer further details on the company’s plans, but confirmed the features were things the company is working on.

“We’re always experimenting with new ways to improve the app experience for our community,” the spokesperson said.

The most notable change uncovered by Wong is one to TikTok’s algorithmically generated “For You” page. Today, users flip through each video on this page, one by one, in a vertical feed-style format. The updated version instead offers a grid-style layout, which looks more like Instagram’s Explore page. This design would also allow users to tap on the videos they wanted to watch, while more easily bypassing those they don’t. And because it puts more videos on the page, too, the change could quickly increase the amount of input into TikTok’s recommendation engine about a user’s preferences.

Another key change being developed is the addition of a “Discover” tab to TikTok’s main navigation.

The new button appears to replace the current Search tab, which today is labeled with a magnifying glass icon. The Search section currently lets you enter keywords, and returns results that can be filtered by users, sounds, hashtags or videos. It also showcases trending hashtags on the main page. The “Discover” button, meanwhile, has a people icon on it, which hints that it could be helping users find new people to follow on TikTok, rather than just videos and sounds.

This change, if accurately described and made public, could be a big deal for TikTok creators, as it arrives at a time when the app has gained critical mass and has penetrated the mainstream. The younger generation has been caught up in TikTok, finding the TikTok stars more real and approachable than reigning YouTubers.  TikTokers and their fans even swarmed VidCon this month, leading some to wonder if a paradigm shift for online video was soon to come.

A related feature, “Suggested Users,” could also come into play here, in terms of highlighting top talent.

Getting on an app’s “Suggested” list is often key to becoming a top creator on the platform. It’s how many Viners and Twitter users initially grew their follower bases, for instance.

However, TikTok diverged from Instagram with the testing of two other new features Wong found that focused on popularity metrics. One test shows the “Like” counts on each video on the Sounds and Hashtags pages, and another shows the number of Downloads on the video itself, in addition to the Likes and Shares.

This would be an interesting change in light of the competitive nature of social media. And its timing is significant. Instagram is now backing away from showing Like counts, in a test running in a half dozen countries. The company made the change in response to public pressure regarding the anxiety that using its service causes.

Of course, in the early days of a social app, Like counts and other metrics are tools that help point users to the breakout, must-follow stars. They also encourage more posting as users try to find content that resonates — which then, in turn, boosts their online fame in a highly trackable way.

TikTok is also taking note of how integrations with other social platforms could benefit its service, similar to how the Facebook, Instagram, WhatsApp and Messenger apps have offered features to drive traffic to one another and otherwise interoperate.

A couple of features Wong found were focused on improving connections with social apps, including one that offered better integration with WhatsApp, and another that would allow users to link their account to Google and Facebook.

A few other changes being tested included an Instagram-like Account switcher interface, a “Liked by Creator” comment badge and a downgrade to the TikCode (QR code), which moves from the user profile in the app’s settings.

Of course, one big caveat here with all of this is that just because a feature is spotted in the app’s code, that doesn’t mean it will launch to the public.

Some of these changes may be tested privately, then scrapped entirely, or are still just works in progress. But being able to see a collection of experiments at one time like this — something that’s not possible without the sort of reverse engineering that Wong does — helps to paint a larger picture of the direction an app may be headed. In TikTok’s case, it seems to understand its potential, as well as when to borrow successful ideas from others who have come before it, and when to go its own direction.


Source: TechCrunch

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