Mac Mouse Pad is Broken.

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addams
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Mac Mouse Pad is Broken.

Postby addams » Thu Jul 10, 2014 4:35 am UTC

The mouse pad is broken.
Is there any hope?

I plugged a corded mouse into it and it works; Sort of.
Very strange.

What was different today from every other day?
It was in a very humid environment.

The new mouse gives me encyclopedia entries with every misspelled word.
That is, just, too much information. I don't spell well.

If the machine is humid, will it dry out?
Must I take it to the Machine Hospital?

Questions.
I have Questions.

This is an amazing machine.
EDIT:
After time in a dry room,
The mouse is behaving better.

It may heal as it dries.

Another Edit:
Hallelujah! It's a miracle!

No more bath adventures for my little mac.
Turning it all the way off and back on after a rest may have helped, too.
Life is, just, an exchange of electrons; It is up to us to give it meaning.

We are all in The Gutter.
Some of us see The Gutter.
Some of us see The Stars.
by mr. Oscar Wilde.

Those that want to Know; Know.
Those that do not Know; Don't tell them.
They do terrible things to people that Tell Them.

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WanderingLinguist
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Re: Mac Mouse Pad is Broken.

Postby WanderingLinguist » Wed Jul 23, 2014 12:58 am UTC

Most laptops these days use capacitive sensors in the trackpad, which means they won't work well if damp (wet fingers can be problematic too). They also don't work if you're wearing gloves.

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addams
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Re: Mac Mouse Pad is Broken.

Postby addams » Wed Jul 23, 2014 4:49 am UTC

oh.
Good to know.

Keep the computer in a dry environment, if at all possible.
A cool dry environment, if at all possible. How is that done?

How do people in North Carolina deal with it?
North Carolina has air that is so wet when cd's are ejected and held vertically, the condensation drips and runs off.
Life is, just, an exchange of electrons; It is up to us to give it meaning.

We are all in The Gutter.
Some of us see The Gutter.
Some of us see The Stars.
by mr. Oscar Wilde.

Those that want to Know; Know.
Those that do not Know; Don't tell them.
They do terrible things to people that Tell Them.

cphite
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Re: Mac Mouse Pad is Broken.

Postby cphite » Wed Jul 23, 2014 8:39 pm UTC

addams wrote:oh.
Good to know.

Keep the computer in a dry environment, if at all possible.
A cool dry environment, if at all possible. How is that done?

How do people in North Carolina deal with it?
North Carolina has air that is so wet when cd's are ejected and held vertically, the condensation drips and runs off.


If the air is that humid the only option might be air conditioning or a dehumidifier; if neither of those is available, a fan or a good cross-breeze might help.

speising
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Re: Mac Mouse Pad is Broken.

Postby speising » Wed Jul 23, 2014 8:45 pm UTC

electronic devices have defined operating conditions.
a quick look for a macbook pro gave me this:
The location you are using your notebook should be within these ranges:
Operating temperature: 50° to 95° F (10° to 35° C)
Relative humidity: 0% to 90% noncondensing


so in those NC conditions you probably shouldn't even turn the thing on.

billy joule
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Re: Mac Mouse Pad is Broken.

Postby billy joule » Thu Jul 24, 2014 1:10 am UTC

cphite wrote:
If the air is that humid the only option might be air conditioning or a dehumidifier; if neither of those is available, a fan or a good cross-breeze might help.


Cooling the air ( via A/C) will make things worse as relative humidity will increase as the temp. drops and the dew point will move closer to air temp (A/C does not remove water from the air so absolute humidity is unchanged)

Laptops are generally at ambient temp or greater. Condensation will only form when a surface is below the dew point ie you bring your laptop inside a warm humid room after being out in the cold. In this case leave it in it's case to reach ambient temp before taking it out it's case and exposing it's cold (below dew point) surfaces to the wet air.

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addams
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Re: Mac Mouse Pad is Broken.

Postby addams » Thu Jul 24, 2014 5:19 am UTC

That is such good advice for cold wet weather.
It makes perfect sense.

How long?
How long inside a warm moist room, before a person should take it out and turn it on?

Half an hour?
Half an hour is a long time in Digital.

These machines are Amazing.
That they work at all is thought provoking.

They work so very well and are also very resilient.
We do living in Amazing Times.
Life is, just, an exchange of electrons; It is up to us to give it meaning.

We are all in The Gutter.
Some of us see The Gutter.
Some of us see The Stars.
by mr. Oscar Wilde.

Those that want to Know; Know.
Those that do not Know; Don't tell them.
They do terrible things to people that Tell Them.

speising
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Location: wien

Re: Mac Mouse Pad is Broken.

Postby speising » Thu Jul 24, 2014 4:38 pm UTC

billy joule wrote:
cphite wrote:
If the air is that humid the only option might be air conditioning or a dehumidifier; if neither of those is available, a fan or a good cross-breeze might help.


Cooling the air ( via A/C) will make things worse as relative humidity will increase as the temp. drops and the dew point will move closer to air temp (A/C does not remove water from the air so absolute humidity is unchanged)

Sorry, but that 's just wrong. AC was actually invented to control humidity. You can even set the unit to dehumidifying only, sometimes.

EvanED
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Re: Mac Mouse Pad is Broken.

Postby EvanED » Thu Jul 24, 2014 6:37 pm UTC

At least by my understanding of how they work, it's not even too crazy to say that a dehumidifier is basically an AC unit where the part that would normally be outside to dump heat there (the condenser coil) is right next to the part that cools the air (the evaporator coil).

billy joule
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Re: Mac Mouse Pad is Broken.

Postby billy joule » Fri Jul 25, 2014 12:51 am UTC

speising wrote:
billy joule wrote:
cphite wrote:
If the air is that humid the only option might be air conditioning or a dehumidifier; if neither of those is available, a fan or a good cross-breeze might help.


Cooling the air ( via A/C) will make things worse as relative humidity will increase as the temp. drops and the dew point will move closer to air temp (A/C does not remove water from the air so absolute humidity is unchanged)

Sorry, but that 's just wrong. AC was actually invented to control humidity. You can even set the unit to dehumidifying only, sometimes.


Yes, the concept is capable of dehumidifying but barely any household units do.

Look at any split system A/C unit; there is no means to transport any condensed water from the inside unit to the outside unit. ie there is no water pipe (and no collection bucket) because... no condensate forms.

If the evaporator coil temp. is below the dew point then yes, dew can form on it.
In reality the fan blowing the rooms warm air over these coils keeps the coil completely dry. The fan flow rate is actually designed around this because humidification isn't a required function for most household A/C and needing water collection/removal systems unnecessarily increases cost and complexity.

(former A/C installer :D mech. engineering student )

EvanED
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Re: Mac Mouse Pad is Broken.

Postby EvanED » Fri Jul 25, 2014 1:22 am UTC

billy joule wrote:Look at any split system A/C unit; there is no means to transport any condensed water from the inside unit to the outside unit. ie there is no water pipe (and no collection bucket) because... no condensate forms.
...in both my current place and my last place there is a hose from the air handler to the basement floor drain. And yes, water comes out of it when I run the A/C.

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Re: Mac Mouse Pad is Broken.

Postby billy joule » Fri Jul 25, 2014 6:13 am UTC

And if you measure the water flow rate you'll probably find it's so small it won't have a measurable effect on absolute humidity in your house. Older/cheaper/poorly designed units do this.

If you think about it in terms of energy use, it makes perfect sense to avoid condensing any water because the heat of condensation is so massive.
Incidental condensation when your goal is to cool an air mass is a waste of energy and will show up in the COP (and running costs..) so modern A/C units design around it.

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Re: Mac Mouse Pad is Broken.

Postby EvanED » Fri Jul 25, 2014 11:12 am UTC

Except that controlling humidity is one of the reasons that people use AC, both for comfort and for control of things like mold. Anyway, next cooling day at my place I'll actually run some measurements, but that may not be for a while.

cphite
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Re: Mac Mouse Pad is Broken.

Postby cphite » Fri Jul 25, 2014 8:32 pm UTC

billy joule wrote:
speising wrote:
billy joule wrote:
cphite wrote:
If the air is that humid the only option might be air conditioning or a dehumidifier; if neither of those is available, a fan or a good cross-breeze might help.


Cooling the air ( via A/C) will make things worse as relative humidity will increase as the temp. drops and the dew point will move closer to air temp (A/C does not remove water from the air so absolute humidity is unchanged)

Sorry, but that 's just wrong. AC was actually invented to control humidity. You can even set the unit to dehumidifying only, sometimes.


Yes, the concept is capable of dehumidifying but barely any household units do.


Actually most of them do.

Look at any split system A/C unit; there is no means to transport any condensed water from the inside unit to the outside unit. ie there is no water pipe (and no collection bucket) because... no condensate forms.


In those systems, the water stays in the pan and evaporates; but since the air flow is going outside, the vapor goes outside. For your typical home, the amount of water being drawn from the air is small enough that normal evaporation is enough; however, if you look carefully, you'll see that most have at least some sort of overflow outlet in case the water is filling too fast.

If the evaporator coil temp. is below the dew point then yes, dew can form on it.
In reality the fan blowing the rooms warm air over these coils keeps the coil completely dry. The fan flow rate is actually designed around this because humidification isn't a required function for most household A/C and needing water collection/removal systems unnecessarily increases cost and complexity.


Then your experience is with a different sort of air conditioner than just about anyone else uses.

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addams
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Re: Mac Mouse Pad is Broken.

Postby addams » Sat Jul 26, 2014 4:53 am UTC

oh, dear;
If the temperature in a room is dropped without reducing humidity?
What have you seen happen?

I have very little experience with AC.

I was standing outside a little sports car that leaked.
The sun was shining brightly.

It started Raining inside the car.
That was funny. Poor little car.
Life is, just, an exchange of electrons; It is up to us to give it meaning.

We are all in The Gutter.
Some of us see The Gutter.
Some of us see The Stars.
by mr. Oscar Wilde.

Those that want to Know; Know.
Those that do not Know; Don't tell them.
They do terrible things to people that Tell Them.


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