Travel

"Previous studies found that birds can use less than 20 to 30 percent of energy. According to a 1970 paper, in a V formation of 25 members, each bird can achieve a reduction of induced drag and as a result increase their range by 71%. In a 2001 Nature study, researchers used trackers on pelicans and yielded the results that pelicans flying alone have higher heart rate and flap their wings more frequently compare to those flying in V formation." more »

"What I’d like to do this afternoon is spend a few minutes focusing on one longstanding problem that’s become increasingly complicated and increasingly consequential, and that’s the challenge of disinformation – of material deliberately meant to deceive and divide – as well as other forms of false and misleading content. We all know that a world in which reliable information is readily accessible is pretty much foundational to every issue, in every country. It empowers us to understand and engage with the world around us. To make decisions that shape our lives, that shape our communities, that shape our countries. But we also know the information space has become more crowded, more complex, more confusing, more contested than ever. That, in turn, creates an enabling environment for disinformation – an environment in which state and non-state actors are undermining the objective truths on which open societies depend." more »

Researchers at Stanford University and the American University of Beirut (AUB) have developed a portable antenna that could be quickly deployed in disaster-prone areas or used to set up communications in underdeveloped regions. The antenna packs down to a small size and can easily shift between two configurations to communicate either with satellites or devices on the ground without using additional power. At its most compact, the antenna is a hollow ring that stands just over 1 inch tall and about 5 inches across – not much larger than a bracelet – and weighs 1.4 ounces. In this shape, it’s able to reach satellites with a high-power signal sent in a particular direction. When stretched out to about a foot tall, the antenna sends a lower power signal in all directions, more like a Wi-Fi router. more »

Ferida's Backyard: "As our communities become more urbanized, the natural features around us tend to get pushed into the background and often go unnoticed. In “Ferida’s Backyard,” I look at the details of nature locally, from a neighborhood perspective, frequently from a backyard vantage point. It excites me to share what I see. An awareness of the natural connection can beautifully enhance our lives. "I was moved when I looked at the leafless tree. It seemed to be reaching up to embrace the sky. It will be like that through the winter months, allowing us to see its inner strength before it covers its bareness with beautiful greenery in Spring." more »