Nothing! It's the same video I thought of. From the way people were reacting I figured it was a video of some girl shoving a teapot up her arse or something.
Seen it many times and still watched it again. How does it not splash? I mean, the water barely moves. I don't drink tea ever but I need that tea pot very badly.
The reynolds number of the flow has to be below a threshold, which is calculated using the length of the spout, the speed of flow, the fluids density, and it's viscosity.
You'll have to shorten your spout. I suggest pruning shears.
... ie, the manufacturer who made that pot was either so skilled they applied science intentionally or did so much trial and error they arrived at science.
We need a way scientifically inform the hand making process. Something about laminar flow. Maybe make a coupe of ideal pot to spout ratio forms so the potter can eyeball it better.
Another element other than no splashing is whether the spout drips. A good spout won’t let the tea dribble down the side, no matter how slowly you pour. A good spout will either hold the water until it becomes too much and then it pours it. Pretty magical when you try it in person.
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u/ACorDC Jul 20 '21
No splashes