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Vundu

macrumors 68000
Jun 10, 2009
1,627
874
Manchester, UK
Rain is NOT under pressure. It falls by the force of gravity. Gravity is the only force acting on rain and rain can only fall. For instance rain can NOT go up but a shower head can spray water up because it is under pressure. Shower water is under pressure and rain IS NOT under pressure.

Also as to the question of my running, you be the judge.:D Here is my January workout calendar.:cool: Because of winter (no biking either) it is probably my 2ed lowest millage month of the year (Feb is usually a little lower).

Image

Wind also affects rain not just gravity.
 

Cashmonee

macrumors 65832
May 27, 2006
1,504
1,245
I would guess the :apple:Watch is designed not to explode when wet, but is not intended to be in those conditions on any sort of regular basis. Having a capacitive touch screen as the main input is the most obvious evidence of this. Capacitive touch does not work well when wet. I guess the digital crown makes up for this, but I am unaware how much the crown can control. Is it everything?
 

Arran

macrumors 601
Mar 7, 2008
4,928
3,935
Atlanta, USA
The problem on a shower is the temperature of the water no?

Good point. The temperature changes would cause the case to expand/contract throughout the shower. That could cause metal/glass/ceramic joints to open up momentarily as they expand/contract at different rates.

And...

If you get a watch wet in hot water, the heat causes air inside the watch to expand. That increases the pressure inside, which gradually reduces as air finds its way out through gaps. So far so good. The air leaking out prevents water leaking in.

Where it all falls apart, however, is when you let the wet watch cool down (and that could simply involve moving your arm out from under the hot shower head). The pressure inside drops, sucking in outside air and any water sitting on the outside surface of the case.

Add a surfactant (like shower soap or shampoo) and the effect is worsened.
 

mrex

macrumors 68040
Jul 16, 2014
3,458
1,527
europe
Watch OK for rain and sweat, but not for shower or pool.

dont you think the humidity in a shower is the problem rather than water drops themselves?
 

8CoreWhore

macrumors 68030
Original poster
Jan 17, 2008
2,662
1,207
Tejas
I find it hard to believe Pogue is correct. There are all kinds of watches out there and most are immersion proof including rain and showers, etc.

The leather bands might be another issue.

Can anyone think of a reason why :apple:Watch would not be as waterproof as a Casio, Timex, etc?
 

Cashmonee

macrumors 65832
May 27, 2006
1,504
1,245
I find it hard to believe Pogue is correct. There are all kinds of watches out there and most are immersion proof including rain and showers, etc.

The leather bands might be another issue.

Can anyone think of a reason why :apple:Watch would not be as waterproof as a Casio, Timex, etc?

Sure, the screen mechanism could be an issue. It flexes when touched as I understand it. That may not be sealed. Also, the digital crown may not be sealed. Usually the biggest issue with waterproofing these watches is the charge points or a slot of some sort (think microSD card). Those have to be exposed in a way that water doesn't effect them. Really though, it comes down to sealing, and if there is an interface that can't be sealed for some reason, the watch's water resistance will fall.

Or Apple could have just decided not to spend the time and cost to seal it for a higher water resistance. They may not see that as a priority.
 
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