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...2–3cm of the nail’s surface with a couple of layers of insulating tape. Slide on the other disc until it butts up against the tape, and then wind more tape on the other side of it to fix it in position so that the cardboard discs are no more than 2–3cm apart. Unwind 30cm or so of wire from the reel to form a lead from the coil, and start winding the remaining wire...

...2), Clipper and JUICE will map such compounds in exquisite, unprecedented detail, allowing scientists to investigate where, when, and how material from the ocean might have emerged and frozen onto the surface. Europa Clipper will also aim to collect tiny, microscopic fragments of the surface that have been ejected into their flight paths. Because Europa lacks a proper...

...2). [A simple diagram to contrast the 'take, make, waste' linear approach to the circular economy.] Figure 1: A linear versus a circular economy (Catherine Weetman, ‘A simple diagram to contrast the 'take, make, waste' linear approach to the circular economy’, 4 January 2016, available here). [SDG12 Sustainable Consumption and Production] Figure 2: United Nations (UN)...