The magnetohydrodynamic (MHD) drive certainly sounds like something out of science fiction — using an array of magnets and electrodes, this high-tech propulsion technology promises to silently ...

The “caterpillar drive” in The Hunt for Red October allowed the sub to travel virtually undetected through the ocean, but real examples of magnetohydrodynamic drives (MHDs) are rare.

From whole wheat to sourdough, registered dietitian Vanessa Rissetto joins TODAY to break down the health benefits of six different types of bread and what to consider before heading to the grocery ...