introducing a friend to PO

emordnilap · Post by **emordnilap** » 13 Feb 2012, 16:36

RalphW wrote:The embedded energy of production for tungsten bulbs is quite low. Far less than the energy consumed whilst waiting for them to break.

I think they could reasonably be employed as low wattage heaters where alternatives are inconvenient - for example in egg incubators.

Fair comment but still, to make something - then simply bin them - grates.

JohnB · Post by **JohnB** » 13 Feb 2012, 16:39

emordnilap wrote:Fair comment but still, to make something - then simply bin them - grates.

I've got a cast iron grate I've taken out of my stove, because I only burn wood in it. So far I can't think of anything to do with it

.

RenewableCandy · Post by **RenewableCandy** » 13 Feb 2012, 16:54

Use it as a fruit-drier on top of the stove or else by putting some tungsten lightbulbs unsderneath it

?

Incredibly there's a pack of 2 100W bulbs still lurking here at Chateau Renewable: I found them while looking for a place to keep the winemaking stuff.

JohnB · Post by **JohnB** » 13 Feb 2012, 23:04

RenewableCandy wrote:Use it as a fruit-drier on top of the stove or else by putting some tungsten lightbulbs unsderneath it ?

Incredibly there's a pack of 2 100W bulbs still lurking here at Chateau Renewable: I found them while looking for a place to keep the winemaking stuff.

The stove doesn't have a top I could put it on, and I don't have any tungsten light bulbs!

SleeperService · Post by **SleeperService** » 14 Feb 2012, 00:14

emordnilap wrote:
RalphW wrote:The embedded energy of production for tungsten bulbs is quite low. Far less than the energy consumed whilst waiting for them to break.

I think they could reasonably be employed as low wattage heaters where alternatives are inconvenient - for example in egg incubators.
Fair comment but still, to make something - then simply bin them - grates.

Hmmm

Well I reckon there's about 300 of various powers in there, the box is in her attic which she won't enter because of a 'monster spider'. Result either darkness until I go to hers or she bribes her lad to go up for some. I said it was a big box!!!

I'll bring up the idea of alternative uses for them instead. It may be safer

Post by **adam2** » 14 Feb 2012, 11:32

RalphW wrote:The embedded energy of production for tungsten bulbs is quite low. Far less than the energy consumed whilst waiting for them to break.

I think they could reasonably be employed as low wattage heaters where alternatives are inconvenient - for example in egg incubators.

I would not discard tungsten light bulbs.
Replace them with low energy alternatives, and store the tungsten ones.
They still have certain uses and may be hard to come by in the future.
Possible uses include
For hand held inspection lamps, when breakage is a risk as they are cheaper
For temporary or emergency lighting where lamps are at risk of loss, theft or breakage
For very high or very low temperatures
As dropper resistances for crude or improvised battery chargers.
When it desired to monitor the supply voltage by variations in the brightness of a lamp.
And of course as low powered heaters as suggested above.

Tarrel · Post by **Tarrel** » 14 Feb 2012, 11:52

Take a traditional "scissor-style" clothes airer. Thrown a large sheet over it. Mount a couple of incandescent (tungsten) bulbs in the base. Presto! A low-cost clothes dryer for those damp days, that's lower-energy than a tumble dryer and will have a low enough power drain to run comfortably off a grid-connected or off-grid solar PV system. (My mother-in-law used to have one).

Even better (and safer) is to stitch a custom-sized cotton "box" with a zip to go over the dryer.

nexus · Post by **nexus** » 16 Feb 2012, 20:11

Back on topic, this is a good intro to PO-very accessible and clear
http://www.youtube.com/watch?v=VOMWzjrRiBg

Mr. Fox · Post by **Mr. Fox** » 19 Feb 2012, 21:37

nexus wrote:Back on topic, this is a good intro to PO-very accessible and clear
http://www.youtube.com/watch?v=VOMWzjrRiBg

That's got to be the best introduction I've seen yet - and I've seen f*cktons. At only 34 mins, it's much more accessible than previous (1.5hr+) efforts in the same vein. Excellent narrator, too.

Particularly love the way they've recycled the iconography from those 1950s American Petroleum Institute animations.

Thanks, nexus.

nexus · Post by **nexus** » 19 Feb 2012, 21:42

Glad you liked it Mr Fox

eatyourveg · Post by **eatyourveg** » 19 Feb 2012, 22:42

There is always this old favourite, it guarantees attention:

http://www.youtube.com/watch?v=c91TPrsZrwc

nexus · Post by **nexus** » 20 Feb 2012, 07:58

As a woman, I think I'll stick with Rob Newman delivering my dose of doom, ta

frankd2689 · Post by **frankd2689** » 26 Feb 2012, 13:16

nexus wrote:Back on topic, this is a good intro to PO-very accessible and clear
http://www.youtube.com/watch?v=VOMWzjrRiBg

I agree. I watched it today. Now I'm going to try to get others to watch it.
I've posted a link to it on Facebook etc.

Norm · Post by **Norm** » 26 Feb 2012, 18:35

For the bigger picture

http://www.youtube.com/watch?v=Bbvwi07dvjs

UndercoverElephant · Post by **UndercoverElephant** » 26 Feb 2012, 22:40

frankd2689 wrote:
nexus wrote:Back on topic, this is a good intro to PO-very accessible and clear
http://www.youtube.com/watch?v=VOMWzjrRiBg
I agree. I watched it today. Now I'm going to try to get others to watch it.
I've posted a link to it on Facebook etc.

I agree also. Very, very good.