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Planned obsolescence, or built-in obsolescence, in industrial design and economics is a policy of planning or designing a product with an artificially limited useful life, so it will become obsolete (that is, unfashionable or no longer functional) after a certain period of time. The rationale behind the strategy is to generate long-term sales volume by reducing the time between repeat purchases (referred to as "shortening the replacement cycle")
A fixed composition resistor normally fails in an open configuration when overheated or overly stressed due to shock or vibration. Excessive humidity may cause an increase in resistance. A variable composition resistor may wear after extensive use, and worn away particles may cause high resistance short circuits.
originally posted by: InTheLight
a reply to: Thecakeisalie
Just a thought, but technology seems to be going the way of smaller is better/more convenient, so it only stands to reason resistor location would end up being near heat anyway, or do you have a revamped design in mind - while still keeping it smaller (and smaller) and making sure it does not catch on fire? Also is the quality of the parts dimininishing to ensure profit margins will always go up?
originally posted by: jacobe001
originally posted by: InTheLight
a reply to: Thecakeisalie
Just a thought, but technology seems to be going the way of smaller is better/more convenient, so it only stands to reason resistor location would end up being near heat anyway, or do you have a revamped design in mind - while still keeping it smaller (and smaller) and making sure it does not catch on fire? Also is the quality of the parts dimininishing to ensure profit margins will always go up?
Make the case surounding it all a heatsink.
That would be a lot of metal to absorb the heat.
originally posted by: InTheLight
originally posted by: jacobe001
originally posted by: InTheLight
a reply to: Thecakeisalie
Just a thought, but technology seems to be going the way of smaller is better/more convenient, so it only stands to reason resistor location would end up being near heat anyway, or do you have a revamped design in mind - while still keeping it smaller (and smaller) and making sure it does not catch on fire? Also is the quality of the parts dimininishing to ensure profit margins will always go up?
Make the case surounding it all a heatsink.
That would be a lot of metal to absorb the heat.
Do you mean cold metal that will absorb the heat then keep and release it simultaneously to remain cool or warm?
Cell phones are being manufactured with irreplaceable batteries. Take it back to the store and the user is conned into buying a new phone under a new contract.
originally posted by: eManym
I have this experience with the cell phones I have had. Battery life deteriorates over time. A typical 2 to 3 year contract is close to $1000 and a user will be lucky to get a few hours of battery before recharge by the end of the contract.
Cell phones are being manufactured with irreplaceable batteries. Take it back to the store and the user is conned into buying a new phone under a new contract.
Also, over time the cellphones functions become slow, clunky and annoying. IMO, this is a built in software feature.
In the future, I will probably go with a simply phone that only supports messaging and calls.
originally posted by: jacobe001
You would think with the emphasis on efficiency, it would be better for everyone if products were to built to last and would reduce garbage.
You cannot even repair many items anymore since many are sealed and do not have screws to take them apart.
originally posted by: eletheia
originally posted by: jacobe001
You would think with the emphasis on efficiency, it would be better for everyone if products were to built to last and would reduce garbage.
You cannot even repair many items anymore since many are sealed and do not have screws to take them apart.
Why is there such a push on recycling when we are ending up with mountains
of obsolete household items..... old washers, cookers, TV's, vaccume cleaners, etc.
Was a time those and other items lasted as long as a good marriage now people
have at least half a dozen of each in their life time. Cant believe that by the end
of this century mountains of rusty old used household items will adorn the planet.
We don't have modular phones that can add or replace existing components.
originally posted by: Thecakeisalie
I concur. I have a friend who is a pretty much a drunken Einstein, he fixes amplifiers, guitars-you name it, he'll fix it. But if you ask him to repair an iPhone i'm pretty sure he would say 'eff it' and throw it at the wall.
These devices are designed to be replaced, not repaired.