Hate Red M&M's? You Need a Candy Color-Sorting Machine

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iStock

You don’t have to be a demanding rock star to live a life without brown M&M's or purple Skittles—all you need is some engineering know-how and a little bit of free time.

Mechanical engineering student Willem Pennings created a machine that can take small pieces of candy—like M&M's, Skittles, Reese’s Pieces, etc.—and sort them by color into individual piles. All Pennings needs to do is pour the candy into the top funnel; from there, the machine separates the candy—around two pieces per second—and dispenses all of it into smaller bowls at the bottom designated for each variety.

The color identification is performed with an RGB sensor that takes “optical measurements” of candy pieces of equal dimensions. There are limitations, though, as Pennings revealed in a Reddit Q&A: “I wouldn't be able to use this machine for peanut M&M's, since the sizes vary so much.”

The entire building process lasted from May through December 2016, and included the actual conceptualization, 3D printing (which was outsourced), and construction. The entire project was detailed on Pennings’s website and Reddit's DIY page.

With all of the motors, circuitry, and hardware that went into it, Pennings’s machine is likely too ambitious of a task for the average candy aficionado. So until a machine like this hits the open market, you're probably stuck buying bags of single-colored M&M’s in bulk online or sorting all of the candy out yourself the old fashioned way.

To see Pennings’s machine in action, check out the video below:

[h/t Refinery 29]

8 Surprising Uses for Potatoes

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istock

Potatoes are one of the world’s most common, and most beloved, vegetables—and they can be used for much more than just sustenance. In honor of National Potato Day, here are a few other ways to use a potato.

1. WEAR THEM

Potatoes come from a nightshade plant called Solanum tuberosum, which blooms with white, pink, red, blue, or purple flowers. In the late 1700s, in an effort to inspire their starving subjects to plant the newly introduced vegetable—which the Spanish had brought to Europe from the New World—Marie Antoinette wore potato flowers in her hair, and her husband King Louis XVI wore them in his buttonholes. This inspired potato flowers to be a favorite of the French nobility for a time, but the ploy didn't work: The lower classes spurned the upper class's efforts to get them to farm the crop. 

2. MAKE ELECTRICITY

If you’re in a lurch, or perhaps a doomsday prepper, start stocking up on potatoes now. With just a few household items—wires, some copper, and a zinc-coated nail—and one of the tubers, you can power a clock, a light bulb, and many other small electronics.

3. GARDEN IN SPACE

In 1995, the potato became the first vegetable grown on the space shuttle. Raymond Bula of the University of Wisconsin spearheaded a project in which five Norland variety potato leaves were propagated in space. Bula’s research group monitored this project from Wisconsin, staying in constant contact with NASA, who stayed in contact with the crew on the space shuttle. When the shuttle arrived home, everyone was pleased to find that the potato plants not only survived the ordeal, but actually grew potatoes.

4. GROW ROSES

Gardeners can insert rose cuttings into a potato, and then plant the entire potato as if it were a seed or bulb. The nutrient-rich potato helps provide moisture and sustenance to the growing plant, giving the cutting a better chance to survive.

5. MAKE PLASTIC

Bio-plastics, as they’re called, can be made from corn, wheat, and—you guessed it—potatoes. The concentration of starches and cellulose in a potato can be used to make plastic, and the plastic made out of potatoes can be burned and composted with much less impact on the environment.

6. MEASURE TIME

Peru’s Incas used the potato for all sorts of things at the height of their civilization. Known for creative, forward-thinking agricultural practices, the Incas also studied time—and started using the time it takes to cook a potato to measure time.

7. REMOVE RUST

Have a knife with some rust spots? If you insert the knife into the potato and let it sit for awhile, you'll go a long way in removing the rust. Potatoes naturally contain oxalic acid, which is used in many household cleaning products (in much greater quantities, of course). Oxalic acid also dissolves rust. To attack larger rusted surfaces with a potato, cut it in half, sprinkle baking powder on it or dip it in dish soap, and get to scrubbing.

8. MAIL THEM

Thanks to Mail A Spud, for only $9.99 everyone’s dream of mailing a potato to their closest friends and family can be a reality. The site advertises that it can send potatoes anywhere in the U.S., and that your choice of mailed gift will be sure to delight recipients. And, if not delight, at least confuse ... in a good way.

Additional Sources: Potato: A History of the Propitious Esculent

This article originally ran in 2016.

Which Kind of Oatmeal is Best for Your Health?

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iStock

Like a lot of nutritionally robust foods, oatmeal sometimes gets a bad rap for being boring. Even the sight of plain, cooked oats—often resembling a mushy kind of paste—can have people passing it up in favor of a sugary cereal or pancake stack. But oatmeal can wind up being one of the better breakfast choices, not only in taste, but also in its health benefits, Time reports. It all comes down to what type of oatmeal you buy and how you prepare it.

To determine your best oat option, it helps to understand that oatmeal isn’t really oatmeal. When oats are harvested, they’re wrapped in a hard husk that manufacturers remove to facilitate cooking. Inside is the groat, a complete grain full of fiber. When you buy oatmeal that’s labeled “instant,” "quick-cooking," "rolled," or "old-fashioned," the groat has been steamed and rolled flat to make it easier to cook. The mostly unadulterated oatmeal labeled “steel-cut” or “Irish” is actually made up of groats that have been chopped up but are otherwise whole.

Typically, the faster you can cook the oatmeal, the more it’s been processed and the less it resembles the groat from the field. Because they resemble kernels and remain thick, steel-cut oatmeal requires the longest preparation, simmering on a stovetop for 30 minutes or so. Processed oats are flaky and can easily be heated.

Nutritionally, both rolled and steel-cut oats have the same profile. Both are fibrous and high in vitamins E, B1, and B12. Steel-cut oats have a heartier texture, while instant tends to take on a loose, light consistency. But because steel-cut oatmeal keeps more of the whole grain intact, it tends to be higher in fiber and lower on the glycemic index and provides more of a slow-burn energy as opposed to the quick burst of the sugar found in flavored instant oatmeal packets.

If you want to opt for steel-cut oats but are short on time, there are solutions. You can soak oats overnight to reduce cooking time down to 10 minutes or so on the stove, or prepare a week’s worth so you can quickly re-heat portions. Topped with yogurt, peanut butter, or fruit, it’s one of the best breakfast choices you can make. And with a little foresight, you won’t have to sacrifice your busy morning to enjoy it.

[h/t Time]

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