Why are times different in other countries?
Clocks in other countries need to be adjusted so that it gets light and dark at approximately the same time everywhere. Without this adjustment, people might find that dawn was at 10 o’ clock in the evening, for example.
In 1884 time zones were set up around the world, measured from Greenwich in London, England. Every time zone east or west of Greenwich has noon at a different time. Each zone is either one hour ahead or behind of its neighbouring zone – it is one hour earlier to the west of each zone, and one hour later to the east.
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What are the northern lights?
The northern lights are streaks and sheets of pale, flickering, coloured lights that are sometimes seen in the night sky in far northern regions. Their proper name is the aurora borealis. The same effect also occurs in the far south, where it is known as the aurora Australis.
Auroras take place between 97 and 1,000 km above the Earth’s surface. They are caused by electrically charged particles from the Sun. These particles strike the Earth’s atmosphere and release energy in the form of light. Auroras are most common when there are many sunspots, which increase the amount of energy released by the Sun.
Picture credit: google
