Just something on my mind

This is a discussion on Just something on my mind within the A Brief History of Cprogramming.com forums, part of the Community Boards category; I 've just been thinking about this lately. You know, it really irritates me when people say to you something ...

  1. #1
    Refugee face_master's Avatar
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    Just something on my mind

    I 've just been thinking about this lately. You know, it really irritates me when people say to you something like "IF you dont shut down the compute properly and just turn it off from the switch it will break it". (This is partly true - it does affect the HDD in some way, but i'm just using this as an example). And i'm like "Ok, how do you know this? Just becuase somebody told you, how do you know its true? Do you understand the workings of a computer's hardware? Huh? Didn't think so. Can you back up your clain with evidence? NO! You suck. Another example is how my mum told me that you can only charge your mobile after the battery is completely depleated. And again I asked her how she knew this and what evidence she had. She said "I'm not a scientist, how would I know?" And I though 'well, if you dont know why its bad to charge the phone before its run out, how do you know this at all?' But I didn't incase she'd blow up at me or something. Parents are unpredictable.
    Please direct all complaints regarding this post to the nearest brick wall Have a nice day.

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    Registered User Commander's Avatar
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    face my friend, let me be the first one to welcome you to life!!
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  3. #3
    aurė entuluva! mithrandir's Avatar
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    >> Another example is how my mum told me that you can only charge your mobile after the battery is completely depleated. <<

    I don't quite see how that can be true - practically every mobile phone these days allows you to charge even if you've got 3/4 of battery power left. If it was so bad for the phone, wouldn't logic suggest that the manufacturers would prevent you from doing this?
    Last edited by mithrandir; 12-03-2002 at 05:31 AM.

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    Don't know about phones, but some rechargable batteries have to be depleted before you recharge them. If they're not, the next time you charge them, they'll only charge to the level of the last charge.
    Truth is a malleable commodity - Dick Cheney

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    Funniest man in this seat minesweeper's Avatar
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    Many rechargeable batteries have a 'memory effect'. If it still has say 1/4 of the life left when you recharge, it will obviously only put 3/4 of the total energy back into the battery. The memory effect means that over time, if you were to keep doing this, the battery would effectively think it's full capacity was this 3/4 value and only ever store that much energy. Thus reducing the battery capacity.

    I do believe that mobile phone batteries (lithium ion?) have this 'memory effect'.

    Manufacturers wouldn't not let you recharge your phone unless it was completely depleted. People need a mobile phone to be a convenience and to be ready to use in an emergency. They therefore must be able to recharge it whenever (before a long car journey for instance) is appropriate.

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    Powering off a computer with a non-journaling filesystem can be bad for the computer and that's one reason why it's said not to do it. You can lose vital information and corrupt disks without a proper shutdown. Journaling filesystems handle abrupt shutdowns much better but it's still not the suggested way to power off your computer.
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    It's full of stars adrianxw's Avatar
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    The business with rechargable batteries "memory" is well documented - search google. If you want positive proof that switching off your machine can cause damage - try it a few times, ideally when you have caches full of unwritten data.
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    Registered User adamviper's Avatar
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    mobile phones

    the only moble phones that should be charged after dipleted are ones with nickle cadium batteries (ni/ca) most do the reason is that after the ni-ca reaction there "gunk" that is leftover and it takes up space meant for ni-ca after recharging when the battery is totally depleted then the gunk goes away allowing maxium battery space. this is the same with r-c cars.

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    Just a Member ammar's Avatar
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    Originally posted by mithrandir
    >> Another example is how my mum told me that you can only charge your mobile after the battery is completely depleated. <<

    I don't quite see how that can be true - practically every mobile phone these days allows you to charge even if you've got 3/4 of battery power left. If it was so bad for the phone, wouldn't logic suggest that the manufacturers would prevent you from doing this?
    I don't think manufacturers will do that even if you shouldn't chanrge the battery untill it's totally empty...
    Because they'l love it if you buy a new battery or even a mobile phone, often.
    none...

  10. #10
    Just a Member ammar's Avatar
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    face, you know I heard something very funny about a week ago...
    Someone told me that if you format a computer very often you'll damage it!
    none...

  11. #11
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    yes but you dont have to know how a car works to drive it. it isnt necessary to have complete mechanical knowledge of everything that you use to use it. that would quite a little bit of knowledge. i can relate where you are coming from though that some basic knowledge is needed.
    yum, yum potatoes!!!!!

  12. #12
    Hamster without a wheel iain's Avatar
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    as the saying goes;

    a little knowledge is a dangerous thing
    Monday - what a way to spend a seventh of your life

  13. #13
    Refugee face_master's Avatar
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    >>
    yes but you dont have to know how a car works to drive it. it isnt necessary to have complete mechanical knowledge of everything that you use to use it.
    <<

    Yes but you cant make an accusation about the car without knowing how its works either.
    Please direct all complaints regarding this post to the nearest brick wall Have a nice day.

  14. #14
    Funniest man in this seat minesweeper's Avatar
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    >>Yes but you cant make an accusation about the car without knowing how its works either.<<

    I don't know. My mum would say that you shouldn't hold a car on the clutch or that you shouldn't crunch gears. Both are reasonable statements to make and you don't need to know anything about gearboxes or clutches.

  15. #15
    Refugee face_master's Avatar
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    im not talking about already proven statements (i.e, stop proving me wrong )
    Please direct all complaints regarding this post to the nearest brick wall Have a nice day.

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