Big hotel groups are most able to flex their muscles this way, especially in America where the majority of hotel rooms are booked via chains.

ECONOMIST: The travel industry

Anytime I got a chance to do a movie that really has some meat to it, and I was able to flex those kind of muscles to be able to sing or sing, dance and act, it's an opportunity to, you know, really share your gifts and show what you have.

NPR: Queen Latifah on 'Trav'lin' Light'

"Manufacturing must be able to adjust and flex production, " Steve McClellan, president of Goodyear's North American tire unit, told the union in the company's opening statement April 22.

WSJ: Goodyear, union begin contract talks for 6 plants

Cars bought with leased batteries will be known as 'Flex' models and buyers will be able to get behind the wheel of an entry-level Visia LEAF .

ENGADGET: New Nissan Leaf comes to the UK with battery leasing option, extended range

The membrane has to be capable of dealing with a very high water "flex, " the amount of water that it is able to withstand being pumped across it, and at the same time, be fine enough to keep the salt and fresh waters separate.

FORBES: Getting Power From Salty Water