elf-driving cars may one day do more than just get us from point A to point B. By adjusting their speed and position while they merge, or by pacing their average speed on the road, they could also help reduce the bottlenecks and random slowdowns on busy thoroughfares like the Bay Bridge, getting us where […]
Atomic Force Microscope Reveals Chemical Ghosts
To the surprise of chemists, a new technique for taking snapshots of molecules with atomic precision is turning up chemicals they shouldn’t be able to see. Chemical reactions take place so rapidly – often within picoseconds, or a trillionth of a second – that chemists expect intermediate steps in the reaction to be too brief […]