The second-generation Asus Zenbook Duo offers unparalleled multitasking prowess with its dual-screen configuration, but it’s hefty and expensive. Laptops are infinitely more portable than a desktop ...

Plenty of materials — from sulfur and sodium to manganese and organic molecules — have tried to topple the ubiquitous lithium-ion battery. And, so far, they’ve all failed. Organic batteries, which are ...