Desert dust represents the largest source of aerosols in the atmosphere by mass. These fine terrestrial particles emitted by ...

The Norwegian Radiation and Nuclear Safety Authority (DSA) has discovered traces of radioactive Cesium-137 near the Russian border in Svanhovd and Viksjøfjell. The level of radioactive isotopes ...

The definition of the hyperfine transitions of cesium was — by international agreement — 9,192,631,770 Hz. A 5 MHz crystal oscillator generates a signal that is modulated by a 137 Hz signal.

Once the capsule is opened, more than 250 people end up contaminated by the substance called Cesium 137, being the biggest radiological accident in the history of Brazil.