@biden_worldnewsNorthwestern University researchers created a drone that is nearly invisible from a distance. It spins quickly in the air, making it hard to spot unless you are searching for it.
查看原帖照片
Northwestern invisible spinning drone
@biden_worldnews 的照片· Jul 19, 2026· 第 1 张照片（共 2 张）· News
关于这张照片
The focus is a potted peace lily plant. The plant has lush green leaves and several white flowers. A blurry, circular object is in the center of the frame, obscuring some of the leaves and flowers. The mood is natural and domestic. The white woven pot is a notable detail.
?
更多News照片
Wendy's yellow packaging
Big U court hearing refusal
2Two-headed Diamondback turtle found in Massachusetts
2Shoji Morimoto doing nothing job
2Cerulean Warbler on branch
Lauren Boebert ethics complaint
2Avery the Poke Kid YouTube milestone
Dave Matthews sign for Palestine
Susy Isabel Aponte Polo
Big U legal enforcement
Toys R Us expansion announcement
2Texas shuts birth tourism business
2Italian water polo players Japan arrest
2Elias 2-24 b youngest planet discovery
Disney+ ad policy update
Carrot Top hospitalized
Europe in 681
2Trump Greenland deal with Denmark