Labour’s persistent failure to address its electorate’s salient concerns is behind the protest vote, asserts DIANE ABBOTT
The science of rainbows inspires new miniature laser technology
		Mirrors are the technology behind modern lasers. New research shows that lasers can be made inside water droplets, using the reflective properties of water, write ROX MIDDLETON, LIAM SHAW and JOEL HELLEWELL
	
			EVERY four years, each Olympic flame starts its life in a parabolic mirror in Greece, lit by reflection of the sun.
The curved sides of the mirror reflect light to the same point, intensifying the light so brightly that it can cause the torch to catch alight.
The same phenomenon was responsible when the concave face of a London skyscraper, nicknamed the “Walkie-Talkie,” concentrated the sun’s heat onto a luxury car parked below, melting parts of its metal and glass exterior.
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