There have been penalties for those who looked the other way when Epstein was convicted of child sex offences and decided to maintain relationships with the financier — but not for the British ambassador to Washington, reveals SOLOMON HUGHES
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
Labour’s new Treasury unit will ‘challenge unnecessary regulation’ by forcing nominally independent bodies like Ofwat to bend to business demands — exactly what Iain Anderson’s corporate clients wanted, writes SOLOMON HUGHES
DR DYLAN MURPHY looks at a Big Brother Watch report which exposes the government as an enabler of DWP secret spying on benefit claimants
The EU faces a critical choice: will it remain in the shadow of an increasingly unreliable US ally, or will it forge its own path in a multilateral world where co-operation with China is essential, asks MARC VANDEPITTE as leaders meet for the EU-China Summit
A lot of discussion about how the left should currently organise – including debate on whether the Green Party is a useful vehicle for advance – runs the risk of refusing to engage with or learn from the reasons the left was defeated previously, argues KEVIN OVENDEN
For Egypt trade trumps the Israeli genocide of the Palestinians, but how long can the country’s ‘misleaders’ – and others in the region – continue their indifference against the popular will of their own people, asks ROGER McKENZIE
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.
More from this author
What’s behind the stubborn gender gap in Stem disciplines ask ROX MIDDLETON, LIAM SHAW and MIRIAM GAUNTLETT in their column Science and Society
While politicians condemned fascist bombing of Spanish civilians in 1937, they ignored identical RAF tactics across the colonies. Today’s aerial warfare continues this pattern of applying different moral standards based on geography and race, write ROX MIDDLETON, LIAM SHAW and MIRIAM GAUNTLETT
The distinction between domestic and military drones is more theoretical than practical, write ROX MIDDLETON, LIAM SHAW and MIRIAM GAUNTLETT
Nature's self-reconstruction is both intriguing and beneficial and as such merits human protection, write ROX MIDDLETON, LIAM SHAW and MIRIAM GAUNTLETT
