2021年6月23日 · A 34-year-old African elephant at Zoo Atlanta in Georgia has just taught engineers a thing or two about how to move water. For one thing, she showed that her trunk doesn’t operate as a simple straw. To suck up water, she dilates that trunk — expands it.

2021年6月1日 · Not only can it use the tips of its elegant nose like dexterous fingers, but it can also use its trunk to create a strong suction to hold items and pull them closer. David Hu at the Georgia...

Figure 1. An elephant uses suction to pick up lightweight objects. (a) The trunk of an African elephant, showing its two prehensile ‘fingers’ at the tip of the trunk. Scale bar, 5cm. (b) A regime diagram for suction across number and size of food items. The red symbols indicate the use of suction and black symbols indicate the absence of ...

2021年6月1日 · Using a noninvasive ultrasound probe, the researchers found that the elephant could dilate its nostrils and increase its nasal volume by an impressive 64 percent while sucking up water thickened...

2021年6月2日 · An elephant uses suction to pick up lightweight objects. (a) The trunk of an African elephant, showing its two prehensile ‘fingers’ at the tip of the trunk. Scale bar, 5 cm. (b) A regime diagram for suction across number and size of food items. The red symbols indicate the use of suction and black symbols indicate the absence of suction.

New research from the Georgia Institute of Technology finds that elephants dilate their nostrils to create more space in their trunks, allowing them to store up to 5.5 liters of water. They can also suck up three liters per second — a speed 30 times faster than a human sneeze (150 meters per second/330 mph).

This paper will focus on the movement, torsion and strain of the elephant trunk, the coiling and unfurling mechanisms of the butterfly proboscis, and finally, the common suction feature used for feeding in both elephants and butterflies.

2021年6月2日 · In a recent study, engineers investigated the physics of how elephants use their trunks to help them eat and drink through suction and by manipulating air.

2021年6月2日 · Elephants ’ trunks “act like suitcases” by expanding to create more space, research has found. The animals can dilate their nostrils, allowing them to store up to nine litres of water and can also...

2021年6月2日 · Powerful suction allows elephants to deftly grasp small and delicate pieces of food, even fragile tortilla chips that would otherwise be crushed or fumbled by the grip of their muscular trunks....