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...2:23 p.m. EDT on June 22, 2015] NASA%u2019s Solar Dynamics Observatory captured this image of the sun emitting a mid-level solar flare, peaking at 2:23 p.m. EDT on June 22, 2015 My favourite science news is the stuff that changes the way I think about the world and our place in the universe. Many dinosaurs were covered in feathers; there’s a planet in the habitable zone...

...2, or by evacuation of the mould. “Counter-pressure die casting” is a variation in which the mould is filled by having a slight pressure differential produced by controlled leakage from the mould. This slow, smooth and progressive filling of the die cavity reduces metal turbulence and gives temperature gradients which are favourable to feeding, thus producing sound,...

...2. Cool die, open, eject pattern and store for 30 days. [Diagram to demonstrate Full mould casting (Evaporative pattern) - see article] 3. Glue-on runners, feeders and risers (where necessary) if not already an integral part of the pattern. Coat pattern with a special factory coating and dry. [Diagram to demonstrate Full mould casting (Evaporative pattern) - see article]...

...2. Die parts assembled and clamped, and metal poured into runner. [Image of die set opened and casting ejected, fettled and heat treated where necessary.] 3. Die set opened and casting ejected, fettled and heat treated where necessary. Die set cooled by air or water (when necessary) and die lubricant applied before reassembly. Manufacture: Yield depends on design of...

...2: Plastic pollution littering a beach Unfortunately the long lifetime observed for many plastics, although hugely beneficial in many applications, can also lead to problems at their end of life disposal. In particular when they are carelessly disposed of within the environment (figure 2, Smith et al., 2014). Currently there is growing concern over tiny pieces of plastic...