资讯
Around the summertime, you might often see maple seeds—also known as “helicopter” seeds—twirl and dance in the air before floating to the ground. While they’re fun to play with as a kid ...
If you have ever set and watched the seeds drop from maple trees in the fall you know the inspiration for the new drone that Lockheed Martin has developed. The maple seeds have a strange single ...
3月on MSN
Maple samaras represent just one way that seeds use the wind to disperse farther. A dandelion's parachute-like float relies ...
Maple Seeds And Animals Exploit The Same Trick To Fly Date: June 13, 2009 Source: California Institute of Technology Summary: The twirling seeds of maple trees spin like miniature helicopters as ...
Andrew Dickerson receives funding from the National Science Foundation. When wind or other disturbances detach winged maple seeds called samaras from their parent tree, they spin through the air ...
当前正在显示可能无法访问的结果。
隐藏无法访问的结果