How To Get Dark Mode Theme On WhatsApp In iOS 11 Running On iPhone

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You can now enable WhatsApp dark mode theme on your iOS 11 running iPhone. Here are the details on how this works.

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Canon’s sensor can shoot slow-mo footage in the dark

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It might seem like Sony is the only company making sensors these days, but Canon is trying to keep up. On top of the crazy 120-megapixel video it flaunted last week, Canon showed footage captured by its 2.2-megapixel, 35MMFHDXS CMOS full-frame sensor…
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This galaxy without dark matter is bending the rules of space

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The complexities of space are pretty mind-boggling, but there are a handful of accepted theories on which scientists base their research. Space is a vacuum, for example, while a light-year is about 5.88 trillion miles. So researchers at Yale Universi…
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Scientists Found a Galaxy With Almost No Dark Matter. Here’s What That Means.

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Roughly 65 million light-years away from Earth is a galaxy called NGC 1052-DF2 (DF2 for short). But DF2 may as well be called F-U, because that’s what it’s saying to scientists who thought they understood galaxies, dark matter, and really anything about our universe.

What makes DF2 so special, you may ask? It appears to contain virtually no dark matter.

We’ve never seen dark matter directly. We only believe dark matter exists because we can see how it affects “regular,” or baryonic, matter. Based on these indirect observations, researchers have estimated that dark matter makes up about 27 percent of our universe.

Since dark matter was (sort of) discovered, researchers assumed dark matter was essential to galaxy formation. Dark matter would clump together. Then, the gravity from those clumps would attract baryonic matter, forming the stars, planets, and other objects we can actually see within a galaxy. Easy, right?

Based on this understanding, the team studying DF2 thought they had a pretty good idea how much dark matter it contained. But when they calculated how much dark matter DF2 actually had, they discovered it contained only 1/400th the amount they expected.

“It challenges the standard ideas of how we think galaxies work,” Pieter van Dokkum, a Yale University professor and lead author of a paper on DF2, now published in Nature, said in a press release. “This result also suggests that there may be more than one way to form a galaxy.”

DF2 is unique in other ways, too. It doesn’t fit the characteristics of a spiral galaxy, which typically have dense, central regions, spiral arms, and a disk. But it also isn’t like known elliptical galaxies, which have a black hole at their center.

Instead, DF2 is a rare ultra-diffuse galaxy. “It’s so sparse that you see all of the galaxies behind it,” van Dokkum said. “It is literally a see-through galaxy.”

This might seem counterintuitive, but DF2 actually supports the existence of dark matter, which some theories argue doesn’t exist.

“For those kinds of theories, it wouldn’t be possible to ever have a galaxy that looks as though it doesn’t have dark matter,” Jocelyn Monroe, a particle physicist and dark matter expert at Royal Holloway, University of London, who was not involved in the study, told The Verge. “So [this galaxy is] really interesting for the potential it has to exclude some of these ideas.”

The researchers hope to pin down the age of DF2. “At the moment, we only know its older than 10 billion years, but we’d like to know if it’s 10 billion years old or 13 billion years old, which is right after the Big Bang,” van Dokkum told ABC.

If DF2 does end up being 13 billion years old, it could rack in another superlative: the oldest galaxy ever discovered.

The post Scientists Found a Galaxy With Almost No Dark Matter. Here’s What That Means. appeared first on Futurism.

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Apple’s App Store mysteriously went dark in Iran yesterday

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Enlarge / Tehran, the capital city of Iran. (credit: A.Davey via Creative Commons)

Yesterday, users in Iran lost access to Apple’s App Store. When users attempted to connect or download apps, they received a message saying that the App Store was “unavailable in the country or region” in which they resided. The cessation of services began around noon GMT yesterday, and services resumed around 5:00am GMT this morning, according to social media posts and sources who spoke with Bleeping Computer. A virtual private network (VPN) could still reach the App Store normally.

Media coverage and social media posts were quick to speculate that the store’s downtime was an Apple-imposed ban driven by US economic sanctions against Iran, as Apple is based in the US. However, we are not yet aware of evidence to support this. An accidental outage is also possible, as is a block imposed by Iran’s government—Iran has previously blocked the Google Play store, though that block was later lifted. Apple has not responded to our requests for clarification.

Because of US sanctions, Apple has no formal presence or operation in Iran, and its App Store is not officially supported there. The company does not sell phones there, nor does it work with any vendors that do. It nevertheless had an 11-percent market share in the country as of last year, as Iranians have purchased millions of iPhones smuggled in from other countries. Iranian app developers have published apps to the App Store for use by Iranian iPhone owners.

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YouTube Gets a Dark Mode on Android and iOS

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YouTube for iOS and Android has officially turned to the dark side. But this doesn’t mean YouTubers are suddenly all stormtroopers. Instead, it just means you can now watch YouTube on your smartphone at night without hurting your eyes.

Having once argued that websites with dark backgrounds suck, I have now seen the error of my ways. Darker themes put less strain on your eyes at night, and this is why so many apps now other dark modes. And YouTube is the latest app to do so.

YouTube Turns to the Dark Side

The desktop version of YouTube has had a dark mode since 2017. And now YouTube for iOS has joined the party. The same dark mode will be added to YouTube for Android soon, and possibly even by the time you read this, so just update the app to find out.

YouTube’s dark mode offers a simple inversion of colors. So the usual white background turns black, and the other elements—such as the logo, titles, and menu items—turn white. It won’t suit everyone, but it makes it easier to use the app at night.

Beyond putting less strain on your eyes, YouTube’s dark mode has a more cinematic feel to it than the default mode. So when you’re actually watching a video the background melts away, allowing you to wholly concentrate on what your favorite vlogger is saying.

To turn on YouTube’s dark mode on iOS, just click on your profile picture in the top, right-hand corner of the app. Then click Settings, and find the Dark Theme option. Click to move the slider across to the On position, and everything will go dark.

Put Your Phone Down Before Bed

As YouTube’s dark mode is so easy to turn on and off you can experiment with it to see if it’s your cup of tea. We recommend turning dark mode on when you’re watching YouTube in bed. Although, ideally, you would be reading a good book instead.

If you’re new to the idea that using technology at night can be bad for you, be sure to read our article detailing how to filter out your phone’s blue light. Especially if you’re always getting tired eyes or headaches caused by eyestrain.

Image Credit: Lars Plougmann/Flickr

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How To Enable YouTube Dark Theme Mode On Android Right Now

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Here’s how you can enable YouTube Dark Theme mode on your Android device right now, though root access is required for this to work.

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YouTube Dark Theme officially starts rolling out on mobile, iOS gets it first

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YouTube’s Dark Theme feature has officially started rolling out to users on Apple’s iOS platform. Team YouTube took to Twitter to make this announcement yesterday. It’s finally here! 🙌Dark theme is rolling out on iOS over the next few days. Toggle it on/off in settings. pic.twitter.com/Mkfl1Dzu3M— Team YouTube (@TeamYouTube) March 13, 2018 As clear from the video embedded in the tweet, you just need to tap on your profile icon, followed by a tap on Settings. Once there, just enable the Dark Theme option, and you’ll see the app immediately switch to dark mode. When…

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YouTube for iOS Gains New Dark Mode

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YouTube is adding a new dark theme to its iOS app, which is rolling out to iOS users starting today, reports The Verge.

The new theme, once available, can be activated by tapping on your account icon, selecting settings, and choosing “dark theme” to turn it on. Dark theme will invert many of the colors of the YouTube AI, replacing the traditional white background with a black background.

Image via Redditor amievengabereal

YouTube introduced a hidden dark mode feature for the desktop starting last year, and since then, the feature has been one of the most requested for its mobile apps.

The dark theme for mobile devices has been in testing for the last few months and it has been previously available to a small number of YouTube users.

You may not see the new dark theme available as an option right away, but it should be rolling out to all iOS users over the course of the day. YouTube also says a dark mode is coming to Android in the near future.

YouTube is a free download for iPhone and iPad. [Direct Link]

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