Physics

When experiments are run at CERN’s Large Hadron Collider particle accelerator, it’s a tremendous event. The world’s largest machine has been responsible for discovering numerous new subatomic particles, including the ultra-elusive Higgs boson.  And lately, its data has been hinting tantalisingly at new physics beyond the Standard Model – the best set of equations we
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Scientists in Germany say they have hit a new superconductivity milestone. According to their paper, they achieved resistance-free electrical current at the highest temperature yet: just 250 Kelvin, or -23 degrees Celsius (-9.4 degrees Fahrenheit). Although the team’s superconducting material has yet to be verified, the claim has merit – the work was led by
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Atomic clocks, based on the minute oscillations of atoms, are the most precise timekeeping devices humans have created. Every year, scientists make adjustments that improve the precision of these devices. Now, they’ve achieved new performance records, making two atomic clocks so precise they could detect gravitational waves, those faint ripples in the fabric of space-time.
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Humanity just made a weighty decision. On Friday, representatives of more than 60 nations, gathered in Versailles, France, approved a new definition for the kilogram. Since the 19th century, scientists have based their definition of the fundamental unit of mass on a physical object — a shining platinum iridium cylinder stored in a locked vault
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