http://www.lowtechmagazine.com/2009/06/embodied-energy-of-digital-technology...
if the energy cost of the plastics injection molding is enough to power a 30 watt laptop for 1,000 days (3 years), then clearly, recycling of the plastic, doing exactly the same thing, is *not* doing the environment any favours.
the answer is, (a) instead, to keep that plastic casework in use for as long as possible (for example by allowing the main processor and memory to be continuously upgraded on a rolling basis) and/or (b) develop different casework production techniques that are far more energy-efficient.
l.
http://www.lowtechmagazine.com/2009/06/embodied-energy-of-digital-technology... if the energy cost of the plastics injection molding is enough to power a 30 watt laptop for 1,000 days (3 years), then clearly, recycling of the plastic, doing exactly the same thing, is *not* doing the environment any favours.
I don't see where in the article it states such a cost. I does mention pretty much exactly this cost when talking about the price of the memory chips, IIRC.
Stefan
On Sun, Oct 18, 2015 at 3:27 PM, Stefan Monnier monnier@iro.umontreal.ca wrote:
http://www.lowtechmagazine.com/2009/06/embodied-energy-of-digital-technology... if the energy cost of the plastics injection molding is enough to power a 30 watt laptop for 1,000 days (3 years), then clearly, recycling of the plastic, doing exactly the same thing, is *not* doing the environment any favours.
I don't see where in the article it states such a cost.
i'm not so concerned with precision, on this, just the general principle and that someone has done the research, and found out such estimated costs.
I does mention pretty much exactly this cost when talking about the price of the memory chips, IIRC.
something like that, yeah.
l.
i'm not so concerned with precision, on this, just the general principle and that someone has done the research, and found out such estimated costs.
But whether this cost is in the injection molding of the case, or in the memory chips makes an enormous difference for your project, since the memory chips are on the CPU card.
Stefan
On Mon, Oct 19, 2015 at 1:22 AM, Stefan Monnier monnier@iro.umontreal.ca wrote:
i'm not so concerned with precision, on this, just the general principle and that someone has done the research, and found out such estimated costs.
But whether this cost is in the injection molding of the case, or in the memory chips makes an enormous difference for your project, since the memory chips are on the CPU card.
both (casework and cpu card) are long-term re-usable, because the main base unit may be upgraded on a continuous basis, and the cpu cards may be put, ultimately, after being re-used for many other end-user purposes, finally into alternative products such as routers, 3d printers, NAS storage boxes, low-power co-located servers [1] and so on.
so in both instances, the lifetimes are extended, making it a much more responsible strategy and also allowing people to save money.
l.
[1] google "raspberry pi hosting" and i think you'll agree that the idea of co-location sites putting out a permanent ebay automated "buy" order for unwanted EOMA68 CPU Cards is not unreasonable.
arm-netbook@lists.phcomp.co.uk
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Luke Kenneth Casson Leighton -
Stefan Monnier