why choose between forest and photovoltaic? the drill can, among other things, be used as an energy collector: advantage it builds itself, and it produces wood which is easily stored, and can be used as fuel at night in winters, the photovoltaic collectors have a captured power ...

he held out long enough not to be accused of being a branquignol who resigns at the first annoyance ... but he is right to conclude like that when he can do nothing more the opposition with the hunters is a false problem ... good hunters are real environmentalists! Alas...

it is not the instantaneous power but the average power over a day ... which explains the difference in 1000W / m2 in instantaneous maximum power and 342W / m2 in average power over a day the ratio of 1000 to 342 is easy to understand ... we divide by 2 because of the night ... and we ...

to see the advertising range battery stihl ... it's as if it was done ... the bartack of the battery has the same effect as the fingertip of josephine guardian angel

it is sure that to make cats pee you need uncompacted sawdust to make good fuel ... the more it is compacted, the less it absorbs the pellets are a first progress as fuel thanks to a heating at 200 ° which melts the lignin and makes the pelet more compa ...

Concentrated thermodynamic solar had its advantages at the time when photovoltaics were too expensive ... but at the price of current photovoltaics, thermodynamic solar energy is of no interest except where the sunshine is very regular with photovoltaics, when it passes a cloud that c ...

there is biomass available to make fuel ... the big mistake is not to use it and let it go up in smoke in a forest fire! if we exploited better, we would have crisscrossed California with a strip cut to the ground and no forest fires could spread over any garn ...

why speak of cardan? there are not any !

there is a conical engenage in front of ... a bevel gear behind, but no gimbals!

everything is rigid!

thank you to correct my mistake ... so the influence of the increase in CO2 rate on the oxygen level is 10 times more negligible than I thought