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Cities

Detroit is building the world’s longest hopscotch course (4.2 miles!)

Two Detroit organizations, Wedge Detroit and Imagine Detroit Together, are planning the World’s Longest Hopscotch Course — 4.2 miles of chalky, colorful joy. As part of the Detroit Design Festival, they’re going to break out the paint, chalk, and knee pads on September 19, draw until September 22, and then recruit 30 volunteers to add a mile each day after that. That basically sounds like the most fun ever, doesn’t it? The organizers know it, too.

Middle schoolers convince L.A. school district to ban styrofoam

Anyone who thinks that kids don’t care about anything but eating uncooked ramen and playing video games clearly underestimated the kids of Thomas Starr King Middle School in Los Angeles. Their interests include uncooked ramen, playing video games, building a tower of styrofoam, and getting so grossed out by it that they launch a letter-writing campaign and eventually convince the Los Angeles Unified School District (LAUSD) to become the first school district in the nation to ban styrofoam.

The Amazon rainforest’s clouds may come from mushrooms

I have not ever visited the Amazon, but in my imagination, it is populated by some serious, colorful, amazing fungi, all of which will either kill you or get you extremely high. But a new paper in Science found that the rainforest’s mushroom could have another vital purpose: producing a motherlode of potassium that helps clouds form. And clouds, of course, produce the defining characteristic of the rainforest: rain. Discover magazine explains: Potassium salts appear to be good at getting carbon compounds to stick together. The larger a carbon cluster was, the larger the ratio of carbon compounds to potassium …

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