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Can you best a math Olympiad? Test your skills with the world's largest database of problems.

Popular Science

MathNet contains 30,000 free math problems collected over half a century. More information Adding us as a Preferred Source in Google by using this link indicates that you would like to see more of our content in Google News results. The International Mathematical Olympiad was first held in Romania in 1959. Breakthroughs, discoveries, and DIY tips sent six days a week. In 1959, countries around the world sent their most talented students to Romania to compete in the first-ever International Mathematical Olympiad (IMO).


Ben McKenzie Says Crypto Has a Secret Ingredient: Male Loneliness

WIRED

The actor-director discussed his least favorite currency and read a series of mean tweets--about us!--at our inaugural WIRED@Night event. Ben McKenzie had a question: "When did WIRED die?" Specifically, the actor-director wanted to know when did WIRED "'DIE,' all caps." McKenzie wasn't asking for himself; he was engaging in the time-honored celebrity tradition of reading mean tweets . McKenzie, who famously played Ryan on before becoming a leading voice of crypto skepticism, was sharing the stage with WIRED senior correspondent Andy Greenberg for the first of what will hopefully be a series of smaller events that we are calling WIRED@Night. On April 16, about 100 people gathered at event partner Ace Hotel Brooklyn to sip drinks from Aplos, Faccia Brutto, The Sorting Table, and Manojo and ponder the future of cryptocurrency.


Chilling warning from Nobel physicist as date is set for humanity's final destruction

Daily Mail - Science & tech

Nancy Guthrie sheriff's appalling past revealed: Beat handcuffed suspect so badly he needed intensive care, used VILE language about woman and lied in sworn statement Vance grounded at White House as Iran peace talks in turmoil and Trump declares: 'I expect to be bombing' New'Hollywood dose' pill: A-listers hooked on'youth elixir' that dermatologists say is anti-ageing, shrinks pores, smooths wrinkles... and even banishes rosacea Days after we got engaged, the love of my life told me he'd killed a man and buried him in a bog. I reported him to police... but then I made this irreversible mistake Ark of the Covenant's final resting place pinpointed by archaeologists as fresh search begins Ritzy Bay Area town torn apart after teacher's daughter, 16, crashed car while speeding and killed four friends... then posted a TikTok video that poured fuel on the flames Jordon Hudson extends her control over Bill Belichick's empire with secret move that is set to leave his family and friends furious Two CIA officers killed in Mexico when their car skidded off ravine and exploded after meeting about bust of'largest ever drug lab' Life-threatening cantaloupe recall in four states upgraded to FDA's highest risk level... 'reasonable probability of death' AMANDA PLATELL: Why Sarah Ferguson - with the ghost of Princess Diana at her side - is ready to sensationally blow up the Royal Family. She knows ALL their secrets... Trump confronts Xi as US forces seize Chinese ship carrying mysterious'gift' to Iran Team USA Olympics star Noah Lyles slammed for'horrible' reaction to his wife's wedding dress reveal In honour of the Queen's (purple!) reign: Kate mirrors late monarch's colourful wardrobe and wears her pearl earrings and necklace How to lose weight when perimenopause sabotages your metabolism: I'm a trainer but when I hit 46, I piled on the pounds overnight. The new'posh' drug that's easier to order than Uber Eats - and why all my middle-class friends have ditched booze and cocaine for it: JANA HOCKING Fury as murderer marries pen pal behind bars... as teenage victim's mom says: 'I'm serving a life sentence without my son' Autistic woman, 24, worked hard to build independent life for herself... now she's PARALYZED thanks to selfishness of stranger Chilling warning from Nobel physicist as date is set for humanity's final destruction The winner of the Nobel Prize in Physics has issued a stark warning to humanity, saying it could face an existential catastrophe within roughly 35 years. David Gross, who shared the 2004 Nobel Prize in Physics, warned that'due to the danger of nuclear war,' humankind may have just a little more than three decades left.


War Memes Are Turning Conflict Into Content

WIRED

The systems behind them--and the reasons we keep passing around war memes as entertainment--are more serious. As ceasefire announcements between the US and Iran --and separately between Israel and Lebanon --dominated headlines over the past two weeks, they also prompted a look back at how war spread online: through memes. There were jokes about conscription. Captions about getting drafted, but at least with a Bluetooth device. The song "Bazooka" went viral, with users lip-syncing to "Rest in peace my granny, she got hit by a bazooka."


Elon Musk snubs Paris legal summons over alleged child abuse images on X

The Guardian

Elon Musk was summoned by the French authorities for a voluntary interview that had been planned to take place on Monday. Elon Musk was summoned by the French authorities for a voluntary interview that had been planned to take place on Monday. Elon Musk did not appear on Monday for a voluntary interview with lawyers in Paris, who had summoned the American tech billionaire over an investigation into his social media platform X and AI chatbot Grok. The prosecutors told AFP that they had "taken note of the absence of the first people summoned", without mentioning Musk's name. The billionaire called the French authorities involved "retards" weeks earlier in a French-language post on X .


Palantir Wants to Bring Back the Draft

Mother Jones

Get your news from a source that's not owned and controlled by oligarchs. On Sunday afternoon, Palantir, the defense-tech company that sells software to clients like ICE, the US military, and the Israeli military, decided to give us all a piece of their mind. The company's official X account published a list of excerpts from co-founder Alex Karp's 2025 book The book frames Silicon Valley's move into military technology as the righteous repayment of a "moral debt" owed to the country that built the tech billionaire class. "The engineering elite of Silicon Valley has an affirmative obligation to participate in the defense of the nation." If you read past the post and dig into the book itself, you'll find that this sentence continues: "the engineering elite must also, Karp said, participate in "the articulation of a national project--what is this country, what are our values, and for what do we stand." That is to say: Men like Karp should decide what this country is. "If a US Marine asks for a better rifle, we should build it; and the same goes for software," Palantir's Bill-Ackman-esque digression continued. It asserts that the future of American military dominance will not depend on nuclear deterrence, but on AI weaponry--possibly like the Palantir AI product that is reportedly used to help generate'kill lists' for the Israeli military in Gaza. Then, after arguing for the primacy of its own products--called " spy tech " by Palantir's critics--Karp suggests the remilitarization of the Axis Powers. "The postwar neutering of Germany and Japan must be undone," Karp's company account asserted. "The defanging of Germany was an overcorrection for which Europe is now paying a heavy price.


Prego Has a Dinner-Conversation-Recording Device, Capisce?

WIRED

The pasta-sauce company has partnered with the nonprofit StoryCorps on a device designed to record family conversations around the table and save them for all time. Prego, the pasta sauce company, is getting into hardware with a device that sits on your table and records dinner conversations. The Connection Keeper is a round puck that houses two microphones for recording around the table. The recorder was developed in partnership with StoryCorps, the 23-year-old nonprofit that has recorded conversations with more than 720,000 people about their lives. The Connection Keeper is more of a publicity stunt than a readily available product.


We Love the Bose QuietComfort Ultra 2, Especially at 50 Off

WIRED

The Bose QuietComfort Ultra 2 have the best active noise cancellation on the market, and they very rarely get cheaper. Bose's QuietComfort Ultra 2 earbuds are the best noise-canceling earbuds you can buy. Right now, they're $50 off, which matches the best price we tend to see outside of special events like Black Friday and Cyber Monday. If you want to wait until November, they might hit $200 again, but otherwise $250 is a very fair deal--especially since they pop back up to $300 regularly. The discounted price applies to all five color options, including Black, Deep Plum, Desert Gold, Midnight Violet, and White Smoke (another rarity, as usually only the vivid colors go on sale).


Tech CEOs Think AI Will Let Them Be Everywhere at Once

WIRED

Mark Zuckerberg and Jack Dorsey have different visions for how to use AI for management purposes, but both imagine a system of heightened control. Silicon Valley moguls have lately complained that too many people are too negative about artificial intelligence. They're likewise frustrated by stalled AI adoption among major corporations that aren't seeing the lucrative efficiencies promised by Big Tech. But if consumers and corporations are proving resistant to AI's acceleration, it hasn't stopped billionaire CEOs from charging ahead with their personal fantasies of what the technology can do. On April 13, the Financial Times reported that Meta is working up a photorealistic, three-dimensional AI avatar of chief exec Mark Zuckerberg, according to several people at the company.


The Dodgers of esports: How L.A.'s Liquid Guild won the attention of over 100,000 people

Los Angeles Times

Things to Do in L.A. Tap to enable a layout that focuses on the article. The Dodgers of esports: How L.A.'s Liquid Guild won the attention of over 100,000 people The top "WoW" guilds around the world, including Team Liquid, race to be the first to defeat highest-difficulty bosses. This is read by an automated voice. Please report any issues or inconsistencies here . Los Angeles-based Team Liquid won the "World of Warcraft" world championship for the fourth consecutive time, defeating Germany's Echo guild in a monthlong competition watched by more than 100,000 viewers.