SOLOMON HUGHES recommends Sunjeev Sahota’s recent novel set in a trade union election campaign for its fresh approach to what unites and divides workers, but wishes the union backdrop was truer to life
A laser focus
Rox Middleton, Liam Shaw and Miriam Gauntlett look at the history of lasers, from cat toys to modelling the explosion of stars
A rainbow lights up the Edinburgh skyline during the Scottish premiere of Global Rainbow a laser art installation by Yvette Mattern, part of Burns and Beyond, Edinburgh's flagship Burns festival, March 24, 2021
Morning Star international editor ROGER McKENZIE says Trump’s ceaseless belligerence is a desperate effort to prevent the emergence of a multilateral world
Don’t dismiss Lebanon as a side theatre of this war, warns SEVIM DAGDELEN — there are signs Israel has expansion in mind, and it has demonstrated its willingness to expel and kill whole populations
The media present Starmer as staying out of Trump’s war — but we’re already deeply involved in a conflict that sees the US and Israel kill civilians on a huge scale, argues IAN SINCLAIR
LINDA PENTZ GUNTER reports on this week’s conference unveiling the findings of the Gaza Tribunal established by Jeremy Corbyn
CHRISTOPHE IMMER of the Morning Star’s German sister paper Junge Welt reports on a Berlin conference on the politics of art and the legacy of Marxist critic Hans Hess
WHAT if you could capture light in a box? Lasers work on that very principle. Light is a wave and any colour is described by a particular wavelength. To trap light in a box, mirrors are used, with the dimensions specially chosen so that the light can reflect off the mirrors and “resonate” at its own wavelength.
Just like a musical instrument, these resonant waves reinforce each other. For a musical instrument, these reinforced waves come out as a sound wave making a note at a particular frequency, which is related to the wavelength.
In the case of a laser, light is trapped at a high intensity, again at a singular frequency related to the wavelength of the light. Some of the light is allowed to burst out of the container, seen as a laser beam.
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