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Does anyone know what's the purpose of the foam that's being removed at 3:50? Is it for waterproofing?
by kccqzy 2y ago
Does anyone know what's the purpose of the foam that's being removed at 3:50? Is it for waterproofing?
- xnx 2y agoMultiple purposes I suspect: Reduce vibration, even out thermals, etc. If water has gotten to that foam, something has probably gone very wrong.
- ssl-3 2y agoMy first thought is acoustics. Empty spaces are resonant spaces, and this can be heard when the phone's speaker(s) are playing sounds and/or the microphones are microphoning. Mechanically damping resonances is always superior to handling them with DSP -- a DSP doesn't need to account for resonances that simply aren't problematic to begin with, freeing it for other duties. Such resonances can also be heard when handling the phone -- even when it is off. Tapping on the phone and hearing/feeling a dull, well-damped thud inspires more of a perception of solidity than a lingering resonance does, even though such foam itself contributes nothing to to the structure of the device at all.
- jwells89 2y agoEven back in the iPod days, one of the stated goals of the designers at Apple was to make their handhelds feel like a singular piece, like something that naturally grows that way (think fruits, crystals, etc) instead of disparate pieces tenuously held together. An impression of solidity falls in line with that idea.
- userbinator 2y agoFruits. Yet if you gently tap on a biological apple, a ripe one actually feels slightly hollow inside.