The prototype radiotherapy system combines a fixed vertical radiation beam with horizontal patient rotation. (Courtesy: Paul Liu) Radiation therapy plays a fundamental role in cancer treatment, but ...

Scientists have just plotted changes in Earth's axis through laboratory measurements. To do this, they constructed the world's most stable ring laser. Previously, scientists were only able to track ...

How to change the axis of rotation (sort of) for a shape in PowerPoint Your email has been sent Illustration: Lisa Hornung, Getty Images/iStockPhoto Must-read Windows coverage CrowdStrike Outage ...