Tidal range Tidal range Tidal range is the height difference between high tide and low tide. Tides are the rise and fall of sea levels caused by gravitational forces exerted by the Moon and Sun and the rotation of Earth. Tidal range is not constant but changes depending on the locations of the Moon and Sun. The most extreme tidal range occurs during spring tides, when the gravitational forces of both the Moon and Sun are aligned (syzygy), reinforcing each other in the same direction (new moon) or in opposite directions (full moon). During neap tides, when the Moon and Sun's gravitational
Acts of Parliament of the United Kingdom relating to the European Communities and the European Union Acts of Parliament of the United Kingdom relating to the European Communities and the European Union This is a list of current, amended, spent and repealed Acts of the Parliament of the United Kingdom relating to its membership of the European Communities and the European Union from 1972 to the present. Some of the acts (particularly the European Communities Act 1972 and the European Union (Withdrawal) Act 2018 represent some of the most important constitutional legislation currently on the statue book . This act legislated for the accession of the United Kingdom to the European Communities which later became the