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astrooptik kohler, luzern-lucerne/switzerland. manufacturer of quality mounts wam transportable and for observatories , kutter schiefspiegler, newtonians, cassegrains. astronomical telescopes and a wide range of accessories for professionals and for beginners.

Astrooptik Kohler, Luzern-Lucerne/Switzerland. Manufacturer of quality mounts WAM (transportable and for observatories), Kutter Schiefspiegler, newtonians, Cassegrains. Astronomical telescopes and a wide range of accessories for professionals and for beginners.

astrosystems manufacturers telescopes and telescope kits. astronomical accessories for most production telescopes, worldwide shipping.

Information about CATSEYE brand newtonian telescope collimation tools and primary mirror spotting accessories

Non profit Organization promoting education and innovative research in Sustainability Science and Science for Governance

kaltec scientific, inc. - home of the hercules hi-shear viscometer

wind energy aerodynamic theory at length based on newtonian principles, small test wind turbines utilizing innovative blade features such as doubled blades and low thickness to chord ratios, kits for sale and a booklet, stories of wind energy projects, links to small wind energy suppliers, links to traditional energy generation sources

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Manufacturer of large aperture portable deep sky telescopes