These tiny drones are powered by sound
MICROBS 实验室的微型飞行器。 2026 EPFL/MICROBS – CC-BY-SA 4.0。作者：Celia Luterbacher 当您将空气吹过瓶颈时，您不仅会产生令人愉悦的音调：您还会展示一种称为亥姆霍兹共振的现象。当气流穿过开口导致空气滞留在空腔（如玻璃瓶）内时，就会发生这种情况 [...]
New Stroke Treatment Turns Brain Cavities Into Repair Hubs
An injectable biomaterial turned stroke-damaged areas into hubs of repair, helping mouse brains grow new blood vessels and nerve fibers while restoring near-normal movement.中风留下的不仅仅是受损的脑细胞。在严重的情况下，它会形成一个空腔，活体组织曾经在其中传递信号、供应血液和控制运动。杜克大学 [...]
