Scientists have been left baffled by the discovery of the wreck of a 2,000-year-old “computer” that is amazingly complex. The Antikythera mechanism – an astronomical calendar – has been dubbed “‘the first computer” and has baffled scientists for generations after it was first discovered inside a Greek shipwreck in 1901. The device is a hand-powered time-keeping instrument that used a wing-up system to track the sun, moon and planets’ celestial time. It also worked as a calendar, tracking the phases of the Moon and the timing of eclipses. Despite sounding relatively simple, the mechanism was actually ahead of its time, being more technically sophisticated than any other tool that was invented over the next 1,000 years. In its current condition, the mechanism is in 82 separate fragments with only a third of its original structure remaining, including 30 corroded bronze gearwheels. Sign up to our free Indy100 weekly newsletter Research into the device from experts at University College London involved 3D computer modelling and helped them solve the mystery of how the device worked, revealing a “creation of genius”. Adam Wojcik, a materials scientist at UCL said at the time: “We believe that our reconstruction fits all the evidence that scientists have gleaned from the extant remains to date.” They theorised that the device tracked the movement of the sun, moon and planets on concentric rings, as the ancient Greeks believed that the sun and planets revolved around Earth, rather than the sun. The researchers explained in Scientific Reports: “Solving this complex 3D puzzle reveals a creation of genius—combining cycles from Babylonian astronomy, mathematics from Plato’s Academy and ancient Greek astronomical theories.” Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

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A Republican measure overturning President Joe Biden's student loan cancellation plan passed the Senate on Thursday and now awaits an expected veto. The vote was 52-46, with support from Democratic Sens. Joe Manchin of West Virginia and Jon Tester of Montana as well as Arizona Sen. Kyrsten Sinema, an independent. The resolution was approved last week by the GOP-controlled House by a 218-203 vote. Biden has pledged to keep in place his commitment to cancel up to $20,000 in federal student loans for 43 million people. The legislation adds to Republican criticism of the plan, which was halted in November in response to lawsuits from conservative opponents. The Supreme Court heard arguments in February in a challenge to Biden's move, with the conservative majority seemingly ready to sink the plan. A decision is expected in the coming weeks. “The president’s student loan schemes do not ‘forgive’ debt, they just shift the burden from those who chose to take out loans onto those who never went to college or already fulfilled their commitment to pay off their loans,” said Louisiana Sen. Bill Cassidy, lead sponsor of the Senate push. The legislation aims to revoke Biden’s cancellation plan and curtail the Education Department’s ability to cancel student loans in the future. It would rescind Biden’s latest extension of a payment pause that began early in the pandemic. It would retroactively add several months of student loan interest that was waived by Biden’s extension. The GOP challenge invoked the Congressional Review Act, which allows Congress to undo recently enacted executive branch regulations. Passing a resolution requires a simple majority in both chambers, but overriding a presidential veto requires two-thirds majorities in the House and Senate, and Republicans aren't expected to have enough support to do that. "If Republicans were to get their way and pass this bill into law, people across the country would have relief they are counting on snatched away from them,” said Sen. Patty Murray, D-Wash. ___ The Associated Press education team receives support from the Carnegie Corporation of New York. The AP is solely responsible for all content.

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