Ohio Company’s Glow-in-the-Dark Gear Makes Firefighters Safer on the Job

iStock/gorodenkoff
iStock/gorodenkoff

Firefighting tools are designed to keep users safe from flames, smoke, and falling debris—but heavy-duty gear won't help them navigate a burning building when the power fails. Zachary Green, a volunteer firefighter and former Marine Corps infantryman, came up with a way to illuminate rescuers' paths using glow-in-the-dark technology, as Cincinnati's WCPO reports.

The innovative safety tools manufactured by Green's Ohio-based company MN8 LumAware utilize maintenance-free phosphorescent light. Phosphorescent materials don't require batteries, light bulbs, or electricity, and they charge themselves when they're exposed to ambient light throughout the day. That means if a blaze or some other accident causes power in a building to fail, phosphorescent objects can act as potentially life-saving light sources.

One of the first products Green invented was a phosphorescent helmet band that makes firefighter helmets visible in the dark. Today, MN8 LumAware sells glow-in-the-dark exit signs, stairwell labels, floor arrows, and tape for illuminating handrails, doorways, and floors. The products are not only useful for occupants, but also for emergency responders who need to get in and out of buildings in a hurry.

In 2019, MN8 LumAware received the presidential “E” award from the Department of Commerce for showing an impressive increase in exports over a four-year period.

[h/t WCPO]

The New iPhone 11 Is Triggering People With Trypophobia

Justin Sullivan/Getty Images
Justin Sullivan/Getty Images

People with trypophobia, or a fear of clusters of small holes, know which triggers to avoid. Soap bubbles, lotus seed pods, and the insides of cantaloupes can all induce panic and revulsion in people who are sensitive to the pattern. Now, they have a new item to add to their list. As Gizmodo points out, the new iPhone has a design feature that's turning off trypophobes.

Apple debuted the iPhone 11 at an event on September 10 ahead of its release on September 20. This latest model comes with many upgrades, including a super-powered processor and longer battery life, but the biggest change has been met with a mixed reception.

The iPhone 11 Pro has three camera lenses where there would normally be one. People who prefer Apple's sleek, minimalist style have criticized the design, while those with trypophobia have had even stronger reactions. Some scientists think the fear of clusters of holes originally developed as a survival mechanism to steer people away from infectious diseases. When someone gets nauseous at the sight of three cameras grouped on the back of a smart phone, it's because it reminds them of decaying flesh.

Presentation launching iPhone 11.
Justin Sullivan/Getty Images

The iPhone likely looks the way it does today thanks to another highly specific fear that afflicted Steve Jobs. The Apple founder suffered from koumpounophobia, or a fear of buttons—an incredibly rare phobia that's only been documented once in all of psychiatric literature. His fear may have lead to the popularization of the smooth, buttonless touch screen. It also explains why the tech giant preferred black turtlenecks to button-down shirts.

Though similar to trypophobia, a fear of buttons and fear of clusters of circles aren't quite the same thing. So while triggering to many, the updated iPhone doesn't necessarily conflict with Jobs's original design aesthetic.

[h/t Gizmodo]

The Reason Why Ships Are Often Painted Red on the Bottom

75tiks/iStock via Getty Images
75tiks/iStock via Getty Images

If you’ve ever salvaged a sea vessel, you might have noticed that ship hulls are often red. If you haven’t dealt with a shipwreck—and chances are you haven’t—you may have still seen a red hull in pictures or in partial view at a shipyard. Since that portion of the ship is below the waterline, it seems strange to opt for a specific color.

The reason is tradition. And worms.

In a piece for Jalopnik, Andrew P. Collins explains that early sailing ships protected themselves against barnacles and wood-eating worms by covering their hulls in a copper or copper oxide paint that acted as a biocide. The copper gave the paint a red tint. By reducing the muck that naturally collects on the hull, ships can maintain their structural integrity and avoid being weighed down by gunk like seaweed that would reduce drag.

These days, biocides can be mixed with virtually any color of paint. But the hulls are often painted red to maintain a nautical tradition. Collins also points out that the red may help observers gauge the load of a ship’s cargo. The more weight on board, the lower in the water it will be. That's why you often see numbers positioned vertically on the side of the hull.

No matter what’s covering the hull, it’s never going to completely eliminate growth. Often, ports will prohibit ship owners from scraping hulls while docked, since ships traveling in outside waters might have picked up a non-native species of weed that could prove problematic in a new environment.

[h/t Jalopnik]

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