Committee for the Defence of the Iranian People’s Rights general secretary GAWAIN LITTLE discusses the impact of the US-Israeli war on the Iranian people and economy
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.
The Defence Universities Alliance is a bit to co-opt higher education into the wider drive to war — we should resist as earlier generations of scientists did, argue say ROX MIDDLETON, LIAM SHAW and MIRIAM GAUNTLETT of SCIENCE AND SOCIETY
Innovation in biotechnology is changing how we conceive of meat, say ROX MIDDLETON, LIAM SHAW and MIRIAM GAUNTLETT of SCIENCE AND SOCIETY
CHRIS SEARLE speaks to Filipino-US saxophonist JON IRABAGON about the threat of AI in the time of Musk and Trump, and how an artist can respond
Neutrinos are so abundant that 400 trillion pass through your body every second. ROX MIDDLETON, LIAM SHAW and MIRIAM GAUNTLETT explain how scientists are seeking to know more about them



