Gadget in Extremis: What's the time, Sr1 strontium optical clock?
Scientists at the NPL celebrate the first inclusion of a UK optical clock - the Sr1 strontium optical lattice clock - in the determination of International Atomic Time (TAI). Scientists at the National Physical Laboratory (NPL) are celebrating the achievement of a milestone with the first inclusion of a UK optical clock - the Sr1 strontium optical lattice clock - in the determination of International Atomic Time (TAI).