Dallas-fort Worth International Airport

About 1,000 flights were canceled or delayed in Dallas on Sunday night and more than 80,000 homes and businesses left without power early Monday, after a line of thunderstorms rolled across a northeastern swath of Texas before heading east.

There are many depictions of a future in which we've mastered the art of manipulating the opacity of glass. Even in real life, sunglasses can adapt to the intensity of sunlight. So why, one might ask, can't we have that in our homes, or at work?

About 1,000 flights were canceled or delayed in Dallas on Sunday night and more than 80,000 homes and businesses left without power early Monday, after a line of thunderstorms rolled across a northeastern swath of Texas before heading east.

There are many depictions of a future in which we've mastered the art of manipulating the opacity of glass. Even in real life, sunglasses can adapt to the intensity of sunlight. So why, one might ask, can't we have that in our homes, or at work?