Slap Bracelet-Notepad Hybrid Is the Perfect Tool for Forgetful '90s Kids


If you own a fancy smart watch, you can access directions, grocery lists, and other notes you write by glancing down at your arm. But blowing a few hundred bucks on a high-tech wearable isn’t the only way to keep your notes where you can see them. As Co.Design reports, the Wemo bracelet is a notepad for your wrist, and it only costs around $11.

Wemo (short for wearable memo) should look familiar to anyone who grew up in the 1980s or '90s. The oblong-shaped, silicone band wraps around your wrist like a slap bracelet. Lines or a bullet journal-style dot grid act as the template for your notes, which you can jot down with either a marker or ballpoint pen. The writing stays clear even if you’re working in the rain or underwater. When you're ready to wipe away what you’ve written, an eraser or a few quick rubs with your finger will do the trick.

Designers working for the Japanese brand Kenma were inspired to create the product after seeing nurses write notes directly on their skin. Emergency medical technicians, police officers, and construction workers may also need to write and access notes quickly while keeping their hands free. But even if your job doesn’t require it, Wemo may be a smart option if you’ve ever found yourself writing a brilliant idea on some scrap of paper you were bound to lose when you didn’t have a notebook handy.

Bracelet standing up and wrapped.

Bracelet on a person's wrist.

Colorful bracelets.

The bracelets are available to purchase in green, cream, and light blue from Amazon.

[h/t Co.Design]

New Color Scale Makes Data Visualizations Easier for Colorblind People to Read

Mars topography visualized on a rainbow scale
Mars topography visualized on a rainbow scale

When designers want to visualize changes in data, like in a heat map or a topographical survey, they often reach for the rainbow. The rainbow color scale is almost the default for visualizing scientific and engineering data. And yet, putting all the colors of the rainbow into a single image isn’t a good idea. For one thing, as Scientific American reports, it makes visualizations impossible to read if you’re colorblind. And even if you can pick out every color in the image, that doesn’t mean you understand what going from red to violet means.

Now, researchers from the U.S. Department of Energy’s Pacific Northwest National Laboratory in Washington have developed an alternative to the rainbow color scale that will make data visualization and other images easier to decipher for people with color-vision deficiency and the general public. Using a mathematical model of how the brain perceives differences in color, they created a new color scale they call cividis, which shows data exclusively in shades of blue and yellow—the colors that someone with colorblindness would see while looking at a rainbow color scale.

A nanoscale image overlaid with four different color scales
The new blue-yellow color scale is labelled CVD-Jet
Nuñez et. al, PLOS ONE (2018)

They took traditional rainbow color maps and ran them through software that converted them to look closer to the blue-yellow scale that reflects what someone with the most common form of colorblindness sees. Then, the software adjusted the color and brightness of that image to look more consistent with how people interpret data. One of the problems with the rainbow scale is that people automatically see the brightest color as a peak, sometimes leading them to incorrect conclusions. Even though yellow is one of the middle colors in Roy G. Biv, it often jumps out at people as the most extreme color on the map, though red is the highest on the scale. In this color scale, the color does get brighter as the values go up, so you don't have to work as hard to interpret it.

In general, most people don’t intuitively know what order the colors of the rainbow should appear in at all. Red and violet are at opposite ends of the Roy G. Biv scale, but that’s not visually apparent. Narrowing the range down to two colors makes it easier for readers to pinpoint where on the scale a specific point is.

The two-color scale also makes changes in data look more gradual, whereas with a rainbow of colors, the difference between each color looks very stark. The ability to show a gradual progression can reflect more nuance.

It’s not just a matter of aesthetics. An eye-catching, complex rainbow visualization can lead scientists to misinterpret their own data, while an easier-to-read scale makes it easier for them to pick out patterns. In one 2011 study cited by Scientific American [PDF], scientists at Harvard found that doctors were faster and better at spotting signs of heart disease while looking at 2D images of arteries on a color scale that just used black and red than while looking at a 3D rainbow visualization.

Cividis has already been added to the color-scale libraries of some image-processing software, and its creators hope to convince more scientists and designers to use it in the future.

[h/t Scientific American]

Hong Kong's Peculiar Architecture Can Be Explained by Feng Shui


Most people are familiar with feng shui—the ancient Chinese art of arranging one's environment to maximize good energy—as it applies to interior design. But you don't need to walk into a building to see feng shui at work in Hong Kong: It's baked into the skyline.

This video from Vox examines how feng shui has shaped the design of Hong Kong's skyscrapers. Some of the most extreme examples are dragon gates: large holes cut out of the center of buildings. The idea is that dragons, which are said to live in the mountains behind the city, will be able to fly through the openings and into the water. If their passage is blocked, bad luck will befall any buildings in their way.

Some superstitious design features are a little more subtle. In the lobby of the HSBC building, the escalators are positioned at a strange angle to fend off the bad energy flowing into the space. When Hong Kong Disneyland hired a feng shui consultant (a real and lucrative job), they were told to shift the entrance 12 degrees to keep chi from flowing out.

But not every architect in Hong Kong takes feng shui into account. The Bank of China Tower is infamous for its sharp angles, which feng shui experts claim damages the positive energy around it. Anything bad that happens to the surrounding businesses is immediately blamed on the tower, and the neighboring HSBC building even installed cranes that are meant to combat any bad luck it radiates.

You can watch the full story below.

[h/t Vox]