Boston-Area Students Convince their City to Install 3D Crosswalks

iStock.com/olaser
iStock.com/olaser

Motorists driving through Medford, Massachusetts may notice something unusual on the street outside Brooks Elementary School. On April 22, the city installed a new pedestrian crosswalk painted to look like 3D objects raised from the ground. The new crossing path aims to make the intersection safer, and it's one of several set to debut around Medford, Curbed reports.

By painting additional, shaded shapes around the traditional white strips of a crosswalk, the city was able to create an optical illusion for drivers. From far away, the flat shapes look like blocks in the middle of the street. The effect is meant to make drivers slow down before they reach the crossing, and to make them more alert to pedestrians in the area.

Two students—a fourth- and a fifth-grader—worked with their teacher and the Brooks Center for Citizenship and Social Responsibility to convince the city to add the safety feature. The 3D walkway, designed by Boston artist Nate Swain, will be painted outside three other elementary schools in the city.

Medford is the first city in the Boston area to experiment with 3D crosswalks, but the illusion has been used for years in other parts of the world. In 2016, Shakuntala Pandya and her daughter Saumya Pandya Thakkar designed their own version of the blocks for a highway in Ahmedabad, India, and in Chicago, the crosswalks have been around for nearly a decade.

[h/t Curbed]

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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