How Do Active Noise-Canceling Headphones Work?
Active noise-cancelling headphones do not rely on padding alone. Microphones measure the noise, a processor calculates a wave of opposite phase, and t...
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Why Do Our Fingers Wrinkle in Water?
After a few minutes in water, fingers develop regular grooves, not chaotic swelling. Water uptake in the outer layer contributes, but it cannot by its...
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EU Finance Ministers Discuss Taxing Windfall Energy Profits
EU finance ministers put a tax on energy companies’ windfall profits on the Dublin table on 18 September. The backdrop is oil above $100 a barrel, abo...
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Why Is the Ocean Salty?
River water usually tastes almost neutral; seawater is salty. Not because rivers carry no salts, but because they carry little, and the oceans collect...
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China accelerates advanced manufacturing and investment in AI-powered factories
President Xi Jinping has called for China’s advanced-manufacturing sector to become “bigger and stronger”, with more autonomous and resilient industri...
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847 years since the death of Hildegard of Bingen, one of the great voices of the Middle Ages
17 September 2026 marks 847 years since the death of Hildegard of Bingen, one of the most extensively documented women of the European Middle Ages. Sh...
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World Cultural Festival brings international music and dance to downtown Valparaiso, Indiana
Valparaiso International Center holds its World Cultural Festival on Sunday, 20 September, at Central Park Plaza in downtown Valparaiso, Indiana, Unit...
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35 years since Linux 0.01: the public beginning of a kernel that changed technology
17 September 2026 marks 35 years since version 0.01 of the Linux kernel, a milestone in the history of modern software. The project had been started...
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43 years since Vanessa Williams became the first African American woman named Miss America
17 September 2026 marks 43 years since Vanessa Williams became the first African American woman to be named Miss America. Williams, representing New...
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International Coastal Cleanup mobilises volunteers against waste entering waterways
On Saturday, 19 September 2026, communities in more than 100 countries are expected to join the International Coastal Cleanup, the annual effort coord...
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International Red Panda Day: an emblematic species threatened by habitat loss
International Red Panda Day falls in 2026 on Saturday, 19 September, the month’s third Saturday, as a global day of education and action for the red p...
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343 years since Antonie van Leeuwenhoek’s letter describing microorganisms from dental material
17 September 2026 marks 343 years since a letter from Antonie van Leeuwenhoek to Francis Aston, secretary of the Royal Society in London. In the docum...
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