One such cloud is called Barnard 68, located about 500 light years from Earth in the constellation Ophiuchus. Its interior is 9 Kelvin (−264 °C) cold and so dense (and thus opaque) that light can ...

Energy is transferred to the absorber during the ionisation process. For a given thickness of absorber, alpha radiation produces most ionisation, beta next and gamma least. Safety precautions are ...

If an apple tree were like an atom, a fruit farmer would have a difficult job. When picking the fruit, he would have to apply more force for each further fruit, and picking the third dozen would ...

Light interacting with hydrogen atoms enclosed in hollow cages composed of carbon atoms produces ionization. This phenomenon is particularly interesting because the light rays can have dramatic ...

The third ionisation energy shows a massive increase because it requires an electron to be removed from magnesium’s second energy level. \(Mg^{2+} (g) \rightarrow ...

Advanced mathematical analysis of the ionisation of a helium atom by an impacting proton has revealed where discrepancies arise between experiments and existing theoretical calculations of the process ...

Testing carried out in Spain has shown the effectiveness of ionisation technology in the reduction of a surrogate for Covid-19 in indoor environments. The test was carried out by Tayra, a specialist ...

Many of us feel safer knowing we've got smoke alarms installed in our homes, but how many people are aware of a raging — and disquieting — debate over their efficacy? One alarm is so maligned it's ...