Pekka Ahokas

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iso lapsellinen mies joka ei häpee välistä vähän tunteillakaan.koittaa filosofisoida tätä maailman menoa ja elämisen tarkoitusta mutta ei taida lopullista nirva
Pekka Ahokas
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Solar hot water heater systems-the drain back design

While solar hot water heater systems are available in many configurations, there are two types that are commonly used today: pressurized glycol systems and drain back systems. In this article,.

Ever notice how the cool action heroes all use bows and arrows these days? Katniss Everdeen, Legolas, Hawkeye, Lara Croft...Now you can join their ranks with this step-by-step guide to designing and building your own bow out of old cross-country skis! I made this pair of bows at the artist residency, Grin City Collective, in Grinnell, Iowa.   Skis are an excellent material to use for the limbs of a bow. First off, they are uniform. You won’t have to worry about inconsistencies in ...

Two things – firstly this is far, far simpler and easier to build than it looks. Anyone with some basic DIY skills and common hand-tools should be able to manage to build this take-down bow, no bother at all. Secondly just because this take-down bow…