The brain consumes 20 percent of your body's energy, but what for? Turns out a third of the energy is spent on "housekeeping":
A new study in Proceedings of the National Academy of Sciences USA indicates that two thirds of the brain's energy budget is used to help neurons or nerve cells "fire'' or send signals. The remaining third, however, is used for what study co-author Wei Chen, a radiologist at the University of Minnesota Medical School, refers to as "housekeeping," or cell-health maintenance...
"Housekeeping power is important for keeping the brain tissue alive," Chen says, "and for the many biological processes in the brain," in addition to neuronal chats. Charged sodium, calcium and potassium atoms (or ions) are continuously passed through the membranes of cells, so that neurons can recharge to fire. ATP supplies the energy required for these ions to traverse cell membranes. Chen says there must be enough energy to maintain a proper ionic balance inside and outside cells; if too many get stuck inside, it can cause swelling, which can damage cells and lead to strokes and other conditions.
Timothy writes, “Diego Gómez is a Colombian conservation biologist. When he was a college student, he shared a single research paper online so that others could read and learn from it, just as he did. Diego was criminally prosecuted for copyright infringement, and faced up to 8 years in prison.”
Sometimes, in the course of his work, University of Florida molecular geneticist Martin Cohn must travel with unusual items like a 3D-printed mouse penis. Similarly, University of Massachusetts biologist Diane Kelly totes around anatomical models like a mold of a dolphin vagina. They’re not alone in the odd science-related items they must fly with, from […]
Rod McCullom at Undark has a terrific overview of the perpetual “virtual lineup,” where half of all American adults “are enrolled in unregulated facial recognition networks used by state and local law enforcement agencies.”
Boasting an IPX6 waterproof rating, the Trakk Bullet Ultra Compact Waterproof Bluetooth Speaker resists dust and heavy rainfall. It’s currently available in the Boing Boing Store.The Trakk Bullet offers the same wireless convenience as other portable speakers, but few are built as tough as this one. Its utilitarian construction is designed to be a totally low-maintenance […]
The Ticwatch 2 Active Smartwatch is a simpler take on an active wearable that raised over $2m dollars on Kickstarter and is currently offered in the Boing Boing Store.Somewhere in between the single-day battery life and platform-specificity of the Apple Watch and Android Wear devices, there exists the Ticwatch. Instead of trying to shoehorn another […]
Loot Crate is a subscription service that delivers a box of curated pop culture goods to your doorstep. To sample their geeky wares, you can order a single mystery box exclusively from the Boing Boing Store.Each month Loot Crate sends you 6-7 unique items and apparel, including collectibles, books, and t-shirts. Pulling inspiration from all […]