Nuclear Physics is the study of the properties and behaviour of nuclei and particles, ranging from tiny quarks to giant explosions deep in space.
Nuclear physics is important in a vast variety of situations, from understanding how the Sun provides the energy for life on this planet, to nuclear power plants and radiation therapy.
As noted above, all nuclide quantities in this chapter will be presented in terms of activities (unless stated otherwise).
Where the motion of the land can be constrained, measurements of past sea level markers allow local sea level changes to be determined.
Determining changes in sea level, their magnitude and timing is important for understanding the relationship between climate and continental ice volume and for discriminating between potential drivers of past climate change.
In reality extra information is used to narrow the possible water depth the coral lived in and hence reduce the uncertainty in the sea level elevation reconstruction.
This evidence could include: The sedimentary facies the coral was found; the assemblage of other organisms such as benthic foraminifera and coralline algae; evidence for photic zone dependant bioerosion; and the geomprphology of the deposit the coral was recovered.
Without nuclei, we simply would not exist, and it is important to understand why!
NUPEX provides a free database of knowledge, created and maintained by expert nuclear physicists from all over Europe.However, the method has been applied with reasonable success to the dating of corals (e.g. U can be expressed by the fundamental decay equation [1.5].Although this equation was derived in section (1.4) for atomic abundances, it is also true for activities (on dividing both sides by the decay constant, e.g.Plus, the site is extremely easy to use, to encourage pupils to explore the information here on their own.NUPEX also aims to explain why many of the applications of nuclear physics seem to be a little controversial, such as the growing use of nuclear power plants and explain whether or not the sceptics' fears can be validated. Corals provide a useful sea level marker because they are exclusively marine organisms, so provide an absolute constraint that sea level must not have been bellow the position of the coral when it was alive.