There's something mesmerizing about watching a marble race down a wooden track, clicking and clacking its way through loops, spirals, and drops. It's a simple pleasure that never gets old, no matter ...

The Nature Index tracks primary research articles from 145 natural-science and health-science journals, chosen based on reputation by an independent group of researchers. The Nature Index provides ...

Walk a few feet. Determine the undisturbed area to test. Push a snow tube into the snow to get a core sample, record the data and repeat. For over 80 years, researchers across the West have followed a ...