All systems nominal. "The Swiss, German-born, disabled athlete Silke Pan climbs stairs with her powered exoskeleton, "Twiice On," designed at the Swiss Federal Institute of Technology, during a press preview in Lausanne on November 6, 2018. Following the 2016 Cybathlon Championships in Kloten, and two years of development, the team of engineers and researchers introduced a new, more efficient powered exoskeleton that can now be used independently. # Fabrice Coffrini / AFP / Getty" Kinda cool, in a disgusting sort of way. Spoiler : "On Tuesday, The New England Journal of Medicine tweeted the most recent addition to its photo series of the most visually arresting medical anomalies. The image is of a mysterious, branchlike structure that, posted elsewhere, would probably pass for a cherry-red chunk of some underground root system or a piece of bright reef coral. But this is no creature of the deep. It’s a completely intact, six-inch-wide clot of human blood in the exact shape of the right bronchial tree, one of the two key tubular networks that ferry air to and from the lungs. And it was coughed up in one piece."