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Playing With Water in 2D Containers
Once again Steve Mould is putting his prototyping skills to use to work out what goes on inside tricky containers. Here he looks at a "magic" wizard's cup where -- like the assassin's teapot -- cleverly placed holes in the side of the cup can block or allow air's escape. In the wizard's cup this lets the wizard refill the cup at will. (Video credit: S. Mould) Read the full article
Turn a bottle upside-down to empty it, and you'll hear a loud glug-glug-glug as the liquid in the bottle empties and air rushes in. In this video, researchers aim a high-speed camera at the very first bubble that forms during the process. (Image and video credit: H. Mayer et al.)
The Noisy Gluggle Jug
The fish-shaped Gluggle Jug makes an impressive set of sounds when tilted for pouring. Steve Mould explores their origin in this video. (Image and video credit: S. Mould) Read the full article
We're all familiar with the problem of pouring a liquid from a narrow-necked bottle. (Image and research credit: L. Rohilla and A. Das; via phys.org)
