[GreenKeys] teletype motor with the 'night light' on it, and OTHER flickering lights

[hwhall at compuserve.com]

>Coal is dead; solar/wind/water/etc is resource-free, after all.

But not completely. None of those are possible without mining, too, for metals. The rarer metals necessary for solar cells need more exploration, more digging up the land & more mine & smelting waste to clean up. Plastics for cheap parts & for insulation require petroleum. Hydro dams drown huge swaths of land (a resource). Solar cell farms also take large pieces of land out of other uses. There's no such thing as a free lunch. :-)

Wayne
WB4OGM

 

-----Original Message-----
From: Dave Horsfall <dave at horsfall.org>
To: Greenkeys <greenkeys at mailman.qth.net>
Sent: Sun, Feb 28, 2016 9:36 pm
Subject: Re: [GreenKeys] teletype motor with the 'night light' on it, and OTHER flickering lights

On Sun, 28 Feb 2016, Andreas Müller wrote:

> here in northern Germany we have many wind driven generators/power 
> plants. Now there are discussions about the stroboscopic effect of the 
> propeller as well.

Same here in Australia; the coal industry is advertising heavily against 
wind turbines, putting up shills to complain about turbine noise etc.

Coal is dead; solar/wind/water/etc is resource-free, after all.

-- 
Dave Horsfall DTM (VK2KFU)  "Those who don't understand security will suffer."______________________________________________________________
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