The pump beam had a large effect on the reflectivity of the mirror, but only over a narrow range of temperatures.

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Sly Bailey, chief executive of Trinity Mirror, is stepping down with immediate effect, the newspaper group has said, six months sooner than expected.

BBC: Sly Bailey

While the driving lights are the first use of a laser beam reflected off a mirror, the daytime running lamps, with their characteristic "torch" effect, and the indicator lights use LEDs.

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In effect, CFOs are trying to steer companies by looking in the rearview mirror.

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In effect, CFOs are trying to steer companies by peering into the rearview mirror.

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With no mirror effect in bright conditions, users can enjoy their movies wherever on-the-go.

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