Technology

Les deux vases, l’énigme maths du « Monde » n° 25
Technology

Les deux vases, l’énigme maths du « Monde » n° 25

Alors que vous déambulez dans les allées d’une fête foraine, un petit stand sans prétention attire votre attention. Dans le fond, s’étale tout un mur de lots parmi lesquels vous repérez une lampe à lave qui serait du plus bel effet sur le guéridon de votre entrée. A l’avant, vous observez deux grands vases, ouverts sur le dessus, mais dont vous ne pouvez voir le contenu. Vous vous approchez et le forain commence à vous expliquer les règles de son jeu. Dans chacun des deux vases se trouvent quatre balles : deux noires et deux blanches. Il y a donc huit balles en tout. Quand le jeu commence, vous êtes autorisé à plonger votre main à l’intérieur des vases pour en retirer six balles. Si vous obtenez exactement trois balles de chaque couleur, vous avez gagné. Sinon,...
Peut-on produire de l’électricité à partir d’eau salée ? Comprendre en trois minutes
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Peut-on produire de l’électricité à partir d’eau salée ? Comprendre en trois minutes

Lorsque de l’eau salée et de l’eau douce sont séparées par une membrane semi-perméable, les molécules d’eau douce se déplacent vers l’eau salée afin de la diluer. Ce phénomène, connu par les scientifiques depuis les années 1950, s’appelle l’osmose. C’est ce qu’il se produit lorsque l’on met du sel sur un concombre pour le dégorger de son eau. Ce déplacement de molécules génère une pression qu’on appelle l’énergie osmotique. Cette dernière est libérée en grande quantité dans les lieux où l’eau douce et l’eau salée se rencontrent : deltas, estuaires… Des usines pilotes d’énergie osmotique ont déjà été déployées à partir des années 2000 en Norvège ou aux Pays-Bas, exploitant l’eau de mer et l’eau de rivière pour générer de l...
Turn yourself into a Google Workspace and Microsoft Office pro
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Turn yourself into a Google Workspace and Microsoft Office pro

Google Workspace and Microsoft Office are built for productivity, and they work even better when you really know what you’re doing. Enter to win a new iPhone 16. No purchase required.Below are a handful of the best tricks I've picked up from years of using this software. Maybe they can unlock some extra time in your day.5-MINUTE PHONE PRIVACY AUDIT TO STOP THE SNOOPSCopy and paste formatting: You picked the perfect font, size and spacing. Now copy that all over your document (or spreadsheet or presentation). Select the text and click the paint roller icon in the toolbar. Click and drag over the text you want to transform. Voila!Roll it back: Three people and 12 versions later, you’re totally lost editing a Google Doc. Retrace your steps by opening File > Version history > See ver...
Anker’s new $35 MagSafe gadget sticks SD cards to your iPhone
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Anker’s new $35 MagSafe gadget sticks SD cards to your iPhone

Anker’s next puck-shaped accessory is an SD and microSD card reader called the MagGo USB-C Adapter that can be used with laptops, tablets, and smartphones. When connected to an iPhone 15 or 16, it can also unlock ProRes 4K recording at 60fps if the memory card supports at least 220MB/s write speeds and 256GB capacity.The MagGo USB-C Adapter — available in white, black, or teal finishes for $34.99 from Anker or Amazon — is MagSafe compatible, so it can be secured to the back of an iPhone and kept out of the way while recording video. Since it does end up blocking both of the ways an iPhone can be charged, Anker has included an additional USB-C port on the MagGo that will pass along up to 42.5W of power.A snap-on cover helps keep dust and dirt out of the MagGo USB-C Adapter’s card slots. ...
23andMe agrees to pay $30 million to settle lawsuit over massive data breach
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23andMe agrees to pay $30 million to settle lawsuit over massive data breach

23andMe disclosed the data breach last October, but it didn’t confirm the overall impact until December. Customers using the DNA Relatives feature may have had information like names, birth years, and ancestry information exposed through the breach. At the time, 23andMe attributed the hack to credential stuffing, a tactic that involves logging in to accounts using recycled logins exposed in previous security breaches.The breach dealt a big blow to the already struggling company. As 23andMe’s stock price continued to crater, 23andMe CEO Anne Wojcicki attempted to take the company private earlier this year, but the special committee rejected the offer last month. The settlement mentions concerns surrounding the company’s finances, saying, “Any litigated judgment significantly more than th...
Keurig caught making ‘inaccurate’ recycling claims about its coffee pods
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Keurig caught making ‘inaccurate’ recycling claims about its coffee pods

Keurig made “inaccurate statements” about the recyclability of its single-use coffee pods, according to the Securities and Exchange Commission (SEC). The company agreed to a cease and desist order and to pay a $1.5 million civil penalty to settle the charges.Corporate recycling claims can be misleadingIt’s a helpful reminder that many corporate recycling claims can be misleading. Certain types of plastic are harder to recycle than others. Even if something is supposedly recyclable, it can end up in the trash if the type of plastic is not accepted by a municipal recycling program.The charges against Keurig Dr Pepper Inc. stem from its 2019 and 2020 annual reports, which said that the company tested and “validate[d] that [K-Cup pods] can be effectively recycled.” But the company failed to...
Netflix wants to stream live episodes of Hot Ones
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Netflix wants to stream live episodes of Hot Ones

/ You might be able to watch celebrities set their mouths on fire on live TV.By Jay Peters, a news editor who writes about technology, video games, and virtual worlds. He’s submitted several accepted emoji proposals to the Unicode Consortium. Sep 13, 2024, 7:14 PM UTCIf you buy something from a Verge link, Vox Media may earn a commission. See our ethics statement.
Bungie will compensate an artist after its Destiny 2 Nerf blaster ripped off their work
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Bungie will compensate an artist after its Destiny 2 Nerf blaster ripped off their work

When Bungie and Hasbro decided to create a real-life, dart-blasting Nerf version of one of the most famous Destiny 2 guns, someone got lazy — stealing a fan artist’s nine-year-old work instead of creating the Ace of Spades from scratch. To Bungie’s credit, the game company has just announced it will “make sure” to compensate and credit Tofu Rabbit “for their incredible artwork,” after a rapid investigation.As you can see in Tofu’s examples below, this is an incredibly clear-cut case of copying, despite the changes that Bungie or Hasbro’s artists made to the blaster.While one would assume Bungie owns the original underlying blaster design, Tofu was able to show that details from her fanart, down to the brush strokes, were copied. Bungie didn’t offer an explanation to The Verge; Hasbro di...
Snappy could improve smartphone photography with a stabilized grip
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Snappy could improve smartphone photography with a stabilized grip

The Camera Control on the new iPhone 16 lineup is Apple’s attempt to improve the ergonomics of smartphone photography, but it doesn’t solve the problem of securely holding on to those smooth rectangular slabs while framing a shot. Similar to accessories we’ve seen from companies like Xiaomi, the Snappy adds the grip and buttons of a dedicated camera, plus more device compatibility with its expanding clamp.Buddiesman, a Chinese maker of tripods and heads, created the Snappy and is attempting to crowdfund the smartphone grip through Kickstarter. Full retail pricing is expected to be $149, but the earliest backers can preorder one for $89. Although Buddiesman may have experience with designing and manufacturing camera gear, its current offerings don’t appear to offer any electronic feature...
The Ultraloq Bolt Mission from U-tec is the first smart lock with UWB
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The Ultraloq Bolt Mission from U-tec is the first smart lock with UWB

U-tec’s new smart lock will allow your door to unlock automatically as you approach it using ultra wideband (UWB) technology. The auto-unlock features that U-tec and others previously offered used a combination of BLE, Wi-Fi, and GPS, which can be unreliable and slow. The Ultraloq Bolt Mission UWB Plus NFC is the first smart lock to leverage UWB, which promises a simpler, faster, and more reliable experience.In addition to UWB, the new lock works over Wi-Fi and Matter and can be unlocked with NFC. At launch, it will work with Android NFC-enabled phones, and U-tec says support for Apple’s Home Key tap-to-open feature will come once it’s available through Matter. If you don’t want to use any of these newfangled methods of entry, the full deadbolt replacement smart lock also has a keypad f...