An internationally joint research group between Singapore and Japan has unveiled a blueprint for arranging exotic, knot-like patterns of light into repeatable crystals that extend across both space and time. The work lays out how to build and control “hopfion” lattices using structured beams at two different colors, pointing to future systems for dense, robust information processing in photonics. Hopfions …
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When you buy through links on our articles, Future and its syndication partners may earn a commission. Magnetic minerals locked inside artifacts from ancient civilizations reveal a snapshot of Earth’s magnetic field at the time. That, in turn, could give us insights into its future. | Credit: Wei-An Jin In 2008, Erez Ben-Yosef unearthed a piece of Iron Age “trash” …
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In 2008, Erez Ben-Yosef unearthed a piece of Iron Age “trash” and inadvertently revealed the strongest magnetic-field anomaly ever found. Ben-Yosef, an archaeologist at Tel Aviv University, had been working in southern Jordan with Ron Shaar, who was analyzing archaeological materials around the Levant. Shaar, a geologist at The Hebrew University of Jerusalem, was building a record of the area’s …
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