The idea of creating an entirely new kind of clock came when his PTB colleague, metrologist Uwe Sterr, noted a quirk in the nuclear physics literature. Studies showed that the thorium-229 nucleus ...

From nearly indestructible metals, like tungsten, to delicate clouds in the sky, atoms make up everything around us. But do these atoms ever touch each other? As with most topics in atomic physics, ...

Elements with lower and higher mass numbers per nucleon are less stable. The total mass of a nucleus is less than the total mass of the nucleons that make up the nucleus. This difference is known ...

They have a radius of around 1 × 10 10 metres. This symbol shows that chlorine has 35 particles in the nucleus (protons and neutrons), 17 of which are protons. It also tells us that chlorine has ...

At low energies, the nucleus of an atom appears to behave as ... one of the three theoreticians from the Nuclear Physics of ...

The atomic nucleus is made up of protons and neutrons ... including those from the Institute of Nuclear Physics of the Polish ...

Researchers at the Institute of Modern Physics (IMP) of the Chinese Academy ... in Physical Review Letters on November 27. The atomic nucleus is a quantum many-body system composed of protons ...

In 1909 he began experiments that were to change the face of physics. He discovered the atomic nucleus and developed a model of the atom that was similar to the solar system. Like planets ...

Atomic clocks that excite the nucleus of thorium-229 embedded in a ... and even rewrite some of the fundamental laws of physics. Thorium-229-doped crystals are both scarce and radioactive.