Search found 698 matches

by dave45
Wed Mar 04, 2009 11:23 pm
Forum: Green Building
Topic: Aerogel
Replies: 7
Views: 1387

Re: Aerogel

The last page of this contains a table that may answer questions of embedded or embodied energy and EE per unit of thermal insulation.

http://www.aerogel.com/Aspen_Aerogels_Spaceloft.pdf
by dave45
Wed Mar 04, 2009 9:13 pm
Forum: Alternative Energy
Topic: Bio-Petrol?
Replies: 25
Views: 4230

Bio-Petrol?

Bio-diesel seems to be well-established now - plenty of websites telling you how to convert your dirty chip-pan oil. But what about my petrol-engined flymo? What bio-fuel will work? Alcohol? Could I theoretically ferment plant matter and distill it to make pure enough alcohol that would work in a pe...
by dave45
Wed Mar 04, 2009 9:06 pm
Forum: Allotments, Veg Patches and Container Gardening
Topic: Pics of Plot 25!
Replies: 11
Views: 665

Re: Pics of Plot 25!

Looks like my bottom garden before I started on it..... you will find a petrol-driven flymo very useful at the start :-)
by dave45
Tue Mar 03, 2009 11:31 pm
Forum: I read the news today, oh boy.
Topic: A Farm for the Future
Replies: 38
Views: 3299

Re: A Farm for the Future

But seriously folks - is this forest garden thing really workable? 3 years ago I started to convert the bottom of my garden from a 25-year jungle to an allotment style garden. The first thing I did was to chop the huge trees down to provide some sunshine, and I have spent the last 3 years digging th...
by dave45
Tue Mar 03, 2009 11:23 pm
Forum: Fruit and Nuts
Topic: BLACKCURRANT BUSHES
Replies: 15
Views: 2319

Re: BLACKCURRANT BUSHES

invisiblepiper wrote: MMM -I don't know a thing about pruning!
Cheers :cheers:
I have the DK/RHS book "Pruning and Training", and am VERY impressed with it - excellent diagrams. But I am a beginner at pruning too - do I have the right reference book?
by dave45
Tue Mar 03, 2009 11:20 pm
Forum: Fruit and Nuts
Topic: BLACKCURRANT BUSHES
Replies: 15
Views: 2319

Re: BLACKCURRANT BUSHES

I got half a dozen such "bushes" in cardboard tubes from Poundland in December ! I extracted them all from their plastic and left them with their feet in a bucket of water for a week or two before planting them out. I intend to do nothing at all for the first year. On my previous bushes I did nothin...
by dave45
Tue Mar 03, 2009 11:11 pm
Forum: Alternative Energy
Topic: DIY lecky
Replies: 19
Views: 2353

Re: DIY lecky

http://i632.photobucket.com/albums/uu41/dave45b/solar8.jpg These are another type of solar cell/panel, called "amorphous" cells. They have an interesting property in that current is along one axis and voltage another. The narrower dimension is scored by lines half an inch apart, dividing it into lo...
by dave45
Tue Mar 03, 2009 10:52 pm
Forum: Alternative Energy
Topic: DIY lecky
Replies: 19
Views: 2353

Re: DIY lecky

http://i632.photobucket.com/albums/uu41/dave45b/solar5.jpg The finished panel - on its fateful full-sun test in the DG unit.... note the less-than perfect condition of the remaining cells. I had repaired some of the weaker/smaller spare cells with even more broken bits wired to that cell in paralle...
by dave45
Tue Mar 03, 2009 10:38 pm
Forum: Alternative Energy
Topic: DIY lecky
Replies: 19
Views: 2353

Re: DIY lecky

http://i632.photobucket.com/albums/uu41/dave45b/Solar1.jpg Step 1 - check which arrangement of cells is best... we will need 36 cells at 0.5volts each to give 18volts. Yes 18 not 12. Whatever charges batteries has to be at a higher voltage than the battery, AND to overcome the voltage drop of any d...
by dave45
Sun Mar 01, 2009 11:27 pm
Forum: Herbs and Vegetables
Topic: Terra Preta?
Replies: 8
Views: 761

Re: Terra Preta?

http://www.twinoaksforge.com/BLADSMITHING/MAKING%20CHARCOAL.htm fantastic site yes - I've seen that site... it looks great for volume production and has the typical American attitude, just use 2 spare oildrums, build this little house out of scrap concrete blocks, weld this and that, use 100 quids ...
by dave45
Sun Mar 01, 2009 2:43 pm
Forum: Alternative Energy
Topic: DIY lecky
Replies: 19
Views: 2353

Re: DIY lecky

mmm your link doesn't work at the moment

is anyone interested in the pics of my solar cells experiment? I'm sure I have them somewhere :-)
by dave45
Sun Mar 01, 2009 12:41 am
Forum: Alternative Energy
Topic: DIY lecky
Replies: 19
Views: 2353

Re: DIY lecky

interesting that all the encouragement comes from outside the UK innit?

:-)
by dave45
Sat Feb 28, 2009 6:06 pm
Forum: Herbs and Vegetables
Topic: Surprise Potatoes
Replies: 7
Views: 566

Re: Surprise Potatoes

sawdust will rot down eventually won't it? I've mixed some into my heap
by dave45
Sat Feb 28, 2009 2:04 pm
Forum: Livestock
Topic: Chest freezer henhouse?
Replies: 14
Views: 1112

Re: Chest freezer henhouse?

Hi Oldfella - any chance of a pic of this? ... I'm just building a hen-house !
by dave45
Sat Feb 28, 2009 10:43 am
Forum: Home Brew and other Country Skills
Topic: Dried Elderflowers for Champagne - yeast?
Replies: 9
Views: 2798

Re: Dried Elderflowers for Champagne - yeast?

apart from trying different brands of sweetener - dunno. I'm sure I read somewhere once about which sugars were fermentable and which were not... never made the connection with EC at the time... any biochemists on here? I presume also that if these recipes do indeed work, (and I have seen many like ...