Cambridge, Massachusetts - One big problem faced by electrodes in rechargeable batteries, as they go through repeated cycles of charging and discharging, is that they must expand and shrink during each cycle - sometimes doubling in volume, and then shrinking back. This can lead to repeated shedding and reformation of its “skin” layer that consumes lithium irreversibly, degrading the battery’s performance over time.

Cambridge, Massachusetts - Most robots on a factory floor are fairly ham-handed: Equipped with large pincers or claws, they are designed to perform simple maneuvers, such as grabbing an object, and placing it somewhere else in an assembly line. More complex movements, such as adjusting the grasp on an object, are still out of reach for many industrial robots.

Cambridge, Massachusetts - Here’s a quick task: Take a look at the sentences below and decide which is the most effective.  

(1) “John threw out the old trash sitting in the kitchen.”

(2) “John threw the old trash sitting in the kitchen out.”

Boulder, Colorado - It’s August and that means the hottest show in the night sky - the Perseid meteor shower - will make its annual appearance, peaking in the pre-dawn hours of August 11 to 14.

Durham, North Carolina - When political candidates give a speech or debate an opponent, it’s not just what they say that matters - it’s also how they say it.

Boulder, Colorado - An intriguing study involving walking stick insects led by the University of Sheffield in England and the University of Colorado Boulder shows how natural selection, the engine of evolution, can also impede the formation of new species.