Eg: IPhone SE is said to be water resistant only upto 30 minutes and 1m depth. When something is water resistant, shouldn’t it be resistant irrespective of how long its soaked? What happens post the time limit or depth?
In: Engineering
Depth translates into water pressure. At some pressure the seals will always fail and the water will push past the seals. 30 minutes and 1 meter depth means that they don’t have to design in super expensive seals. The deeper you design for, the more expensive your design comes, because you have to guarantee a higher pressure on the seal, and usually bigger seals.
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