Newton's first law describes how, once in motion, planets remain in motion. What it does not do is explain how the planets are observed to move in nearly circular orbits rather than straight lines. Enter the second law. To move in a curved path, a planet must have an acceleration toward the center of the circle. This is called centripetal acceleration and is supplied by the mutual gravitational…
The intersection of AI, the Internet of Things (IoT) and edge computing has kindled the edge AI revolution that promises to redefine how we perceive and interact with the physical world through intelligent devices. Edge AI moves intelligence from the network centre to the devices at its edge, entrusting these endpoints to analyse data locally, make decisions, and provide real-time responses. Re…
Though the guitar as we know it is only about a century and a half old, its roots as a plucked stringed instrument go back deep into history. Many ancient folk instruments have followed the basic strings-stretched-overfretboard-and-played-with-fingers design for thousands of years, and the guitar is in some ways the culmination of that legacy. It seems humans have always had something like the …
Time is against us. The world has already warmed by an average of 1 degree Celsius, as decades of rising greenhouse gas emissions have accu-mulated in our atmosphere. Devastating impacts are predicted if we fail to hold average warming well below 2 degrees Celsius this century. Any delay in tackling climate change, even one that allows the seemingly minor upward creep i…