tested

In 1873, Andrew Hallidie tested San Francisco’s first cable car on Clay Street, creating a new way to travel up the city’s steep hills without horses

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In 1873, Andrew Hallidie tested San Francisco’s first cable car on Clay Street, creating a new way to travel up the city’s steep hills without horses

PC: Cable Car Heritage Museum In August 1873, San Francisco tested a new cable railway system designed to operate on streets where horses struggled with steep grades. Andrew Smith Hallidie tested the first cable car on Clay Street on 2 August, using an endless wire rope placed in a tube below the surface of the … Read more

An Australian SPF50+ sunscreen tested as low as SPF 4; after 20 products were recalled, its formula maker now faces multimillion-dollar lawsuits

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An Australian SPF50+ sunscreen tested as low as SPF 4; after 20 products were recalled, its formula maker now faces multimillion-dollar lawsuits

One of the products involved was Ultra Violette’s Lean Screen SPF50+, which Choice testing found had an SPF of just four. A sunscreen manufacturer whose base formula was used in 20 products recalled in Australia after they failed to meet their advertised SPF claims is facing multimillion-dollar legal claims. Wild Child Laboratories is being sued … Read more

China tested nanobubbles across a 3,300-square-metre section of Taihu Lake; within 20 days a key measure of cyanobacteria fell nearly 90% and ammonia nitrogen dropped sharply

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China tested nanobubbles across a 3,300-square-metre section of Taihu Lake; within 20 days a key measure of cyanobacteria fell nearly 90% and ammonia nitrogen dropped sharply

China’s Taihu Lake sees improved water quality over past 10 years A field trial using a two-stage nanobubble treatment system across a 3,300-square-metre section of Taihu Lake in eastern China reduced a key measure of toxic cyanobacteria by nearly 90 per cent within 20 days. Published in the journal Environmental Research and indexed on PubMed, … Read more

In 2023, Princeton researchers tested radiative cooling with natural ventilation and thermal mass, keeping a building 3.9°C below outdoor air

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In 2023, Princeton researchers tested radiative cooling with natural ventilation and thermal mass, keeping a building 3.9°C below outdoor air

In 2023, researchers tested whether a building could be cooler than the air outside while still relying on natural ventilation. The experiment used two insulated boxes in California to study how radiative cooling, thermal mass and temperature-driven airflow could work together without fans or mechanical systems. The test box had an uninsulated aluminium roof covered … Read more

Scientists tested spiders as living DNA traps; their stomach contents can reveal which insects and other animals are living around them

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Scientists tested spiders as living DNA traps; their stomach contents can reveal which insects and other animals are living around them

Wolf spider on white background. Image Credit: Philip N. Cohen/Wikipedia A study published in ‘Experimental and Applied Entomology’ has explored how spiders could tell what animals are living around them by examining traces of prey DNA left inside their bodies. The research tested how ‘reliable prey DNA’ could be found in wolf spiders after feeding … Read more

Meet Zeynep Demirbas, the New York eighth-grader who tested whether AI can recognise stress; a basic machine-learning model beat ChatGPT-4o

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Meet Zeynep Demirbas, the New York eighth-grader who tested whether AI can recognise stress; a basic machine-learning model beat ChatGPT-4o

Zeynep’s work earned her a finalist place in the 2025 Thermo Fisher Scientific Junior Innovators Challenge Fourteen-year-old Zeynep Demirbas has found that ChatGPT-4o is less accurate than a mental health-focused AI model and a simpler machine-learning system at detecting stress in human written text.Zeynep, an eighth-grade student at Transit Middle School in East Amherst, New … Read more

Meet Archishman Dey, the Ohio eighth-grader who tested an air fryer, candle, humidifier, gas and incense; incense produced the most fine-particle pollution

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Meet Archishman Dey, the Ohio eighth-grader who tested an air fryer, candle, humidifier, gas and incense; incense produced the most fine-particle pollution

Ohio eighth-grader Archishman Dey’s experiment reveals incense produced the highest PM2.5 pollution among five household sources. (Photo: Society for Science) An eighth-grader from Solon, Ohio, is drawing attention to an often-overlooked source of air pollution – the air inside our homes. Archishman Dey, a student at Solon Middle School, conducted a science project examining how … Read more

San Diego’s Leanne Fan, 18, built a device to simulate microgravity and tested red light on injured flatworms; tissue regeneration sped up by 95.2%, helping her win $80,000

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San Diego's Leanne Fan, 18, built a device to simulate microgravity and tested red light on injured flatworms; tissue regeneration sped up by 95.2%, helping her win $80,000

Fan built her own $200 device instead of using NASA’s $50,000 clinostat. (Society for science photo) Leanne Fan, an 18-year-old student from San Diego, has been named a finalist in the 2026 Regeneron Science Talent Search for her research into wound healing in space. Her project looks at whether red light therapy can help wounds … Read more