comparaison-taille-helicoptere - La boite verte
Measuring the sky, the handy way. Source: Free Astronomy Teaching Resources (Starry Night) via scienceisbeauty
So I heard you like interesting mechanisms. - Imgur
DIY spot-welder Uses microwave oven transformer. 230 VAC mains in, 3 turn out.
ELEMENTS Modular Furniture by Till Könneker » Yanko Design - created via http://pinthemall.net
蝶結び This might make an interesting closure used with buttons or twisted knots.
Arborist Knots | How to Tie Tree Climbing Knots | Animated Arborist Knots....coolest. site. ever!!
Nudo Prusik. Nudo Klemheist. Nudo Autoblock. Nudo Bachmann Hitch.