Description: Optical level with BT160 tripod and the GR 500 levelling rod. Ideal for outdoor use with robust housing and IP54 dust and splash protection and a working range of up to 60m. 20x ...

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The lower box is one the earliest spacecraft ion thrusters (from EOS circa 1962), and on top is a new arrival, a modern marvel from the SpaceX Starlink satellites used for on orbit maneuvering. SpaceX ...