PhysicsTemperature gets a new definition using a quantum device A device that relies on quantum effects and oversized atoms may be a more reliable way to measure temperature that doesn't require calibration ¿ìè¶ÌÊÓÆµ
ChemistryThe world’s most elusive colour is worth billions – if we can find it The discovery of bright yet stable pigments is vanishingly rare, making them hugely valuable. Now chemist Mas Subramanian is unpicking the atomic code of colour and homing in on our most-wanted hue Features