flap

"If we shine a light on just one, only that muscle moves. If shining on both, they both flap."

From Science Daily ● Oct. 23, 2026

By directing light onto either fin, the researchers can trigger muscle contractions that make the fin flap and push the robot through water.

From Science Daily ● Oct. 23, 2026

That’s clearly targeting a customer who is now priced out of flap bags selling for $10,000 and up.

From The Wall Street Journal ● Sep. 24, 2026

One fortune, written on the inside of a flap, said, “You will meet a new cat!”

From Los Angeles Times ● Aug. 10, 2026

She walked over to the couch and bent down to lift the little flap of fabric that covered the couch’s legs.

From "The Strangers" by Margaret Peterson Haddix

These mechanisms are used, among other things, to deploy wing flaps during the plane's landing approach, helping to slow the aircraft.

From Barron's ● Oct. 28, 2026

SCHERERVILLE, Ind.—An American flag big enough to cover two school buses flaps over a Steak ’n Shake location southeast of Chicago.

From The Wall Street Journal ● Aug. 30, 2026

But flaps have flared up in the last lap.

From Los Angeles Times ● Aug. 8, 2026

As the valve tissue degenerates, the thin flaps that should meet neatly can thicken, stretch, or lose their normal shape.

From Science Daily ● Jul. 12, 2026

I need those mittens I made out of the pattern book Gran gave me, with the flaps that flip back so you can use your fingers.

From "Code Name Verity" by Elizabeth Wein

As the muscles contracted, the fins flapped and propelled the robot through the water.

From Science Daily ● Oct. 23, 2026

Bournemouth's David Brooks was holding the arm of Manchester City's Gianluigi Donnarumma, who then flapped at the ball before Tyler Adams scored.

From BBC ● May 11, 2026

Tide tables have become the stuff of national interest, and rare moments when the exhausted whale has blown water or flapped its fin have warranted breaking news bulletins.

From Barron's ● Apr. 23, 2026

A U.S. flag flapped on a pole just above a Hanwha company flag.

From The Wall Street Journal ● Nov. 10, 2025

It had been heavy once, when we were newly married: now the faded rag in which it was tied was too big and the ends flapped loosely over the knot.

From "Nectar in a Sieve" by Kamala Markandaya

Understanding these compromises could also lead to improvements in aviation technology, particularly drones and other robotic aircraft that use flapping wings.

From Science Daily ● Oct. 17, 2026

The Norwegian flag is seen flapping through a window when the mother is told: “We are here to take the children, Lisbet. All of them.”

From The Wall Street Journal ● Oct. 8, 2026

When the BBC visited the airbase at Keflavik this month, fighter jets were taking off, and the Stars and Stripes was flapping alongside the Belgian tricolour and Nato flags.

From BBC ● Aug. 26, 2026

Shortly before 11:30 a.m., one of the two famous eaglets — later identified as Sandy — was flapping her wings on a branch just outside the nest.

From Los Angeles Times ● Jun. 28, 2026

He was close enough now to see that the girl was fighting the current, arms flapping with frenzied determination to keep her head above water.

From "The Undead Fox of Deadwood Forest" by Aubrey Hartman