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Technology

Editor’s Note: Supporting the present and future

Every February, Safety+Health shines a spotlight on the CEOs Who “Get It” – the National Safet

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2026-01-26 01:01:45

My Story: Sara Vida

Safety has always been a part of my story, and injury prevention was where I began that journey. I�

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2026-01-26 01:01:44

My Story: Roy J. Osborne, MBA, CSP

I started out as an environmental manager for a small business unit of a publicly traded company in

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2026-01-26 01:01:43

Energized equipment protection

Safely cut down on arc flashing and tower climbs while troubleshooting remotely with both thermal a

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2026-01-26 01:01:40

No One Is Quite Sure Why Ice Is Slippery The original version of this story appeared in Quanta Magazine.The reason we can gracefully glide on an ice-skating rink or clumsily slip on an icy sidewalk is that the surface of ice is coated by a thin watery layer. Scientists generally agree that this lubricating, liquidlike layer is what makes ice slippery. They disagree, though, about why the layer forms.Three main theories about the phenomenon have been debated over the past two centuries. Last year, researchers in Germany put forward a fourth hypothesis that they say solves the puzzle.But does it? A consensus feels nearer but has yet to be reached. For now, the slippery problem remains open.Hypothesis 1: PressureIn the mid-1800s, an English engineer named James Thomson suggested that when we step on ice, the pressure we exert melts its surface, making it slippery. Under normal conditions, ice melts when the temperature rises to 0 degrees Celsius (32 degrees Fahrenheit). But pressure lowers its melting point, so that even at lower temperatures, a layer of water might form on the surface. This theoretical relationship between melting point and pressure was experimentally confirmed by Thomson’s younger brother William, better known as Lord Kelvin.In the 1930s, though, Frank P. Bowden and T. P. Hughes of the Laboratory of Physical Chemistry at the University of Cambridge cast doubt on the pressure melting theory. They calculated that an average skier exerts way too little pressure to significantly alter ice’s melting p

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2026-01-26 01:01:47

Industrial tempering valve The ITV is a self-operating valve engineered to prevent over-temperature conditions that can damage

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2026-01-26 01:01:39

Industrial vacuum cleaners These explosion-proof, compressed air-operated vacuums help reduce sparks, heat generation and othe

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2026-01-26 01:01:38

Help prevent chemical burns Chemicals are a serious burn hazard in the workplace. Data from the Bureau of Labor Statistics shows

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2026-01-26 01:01:37

Opinion

Tourists flock to Chinese zoo to see ‘human-like’ bear. What is your opinion on this?
A big flock of visitors gathered at the zoo in China's Zhejiang province after a video of bear named

02/08/2023

France evacuates citizens from Niger when the neighbors warn of war
France is all set to evacuate hundreds of French and European citizens from Niger on Tuesday, a day

02/08/2023

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