21 December 2020: Today is the smallest day of the year, why is the day so small? Will the day be shorter everywhere in the world today?
Today is Winter Solstice. I.e. the smallest day of the year. Last year the Winter Solstice came on December 22nd. But, this time it’s December 21st. Earlier in 2017, Winter Solstice also came on December 21.
Why do these days get bigger and smaller? Could a day other than December 21 and 22 be the smallest day of the year? What does solstice mean and how many types are there? Does it also have an effect on the weather? Let's find out.
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| source by ; divya bhaskar |
Why do days get bigger and smaller?
This is because the earth is tilted. In fact, not just the earth. But each planet in the solar system is tilted at a different angle. Our earth also tilts 23.5 degrees on its axis. Due to the fact that the earth is tilted on its own axis, or rotating around its own axis, the time of the sun's rays falling in one place varies on different days of the year.
So today will be the smallest day of the year in the whole world?
It's not like that. Today is the smallest day of the year in the countries of the North Hemisphere. Today is the biggest day of the year in the South Hemisphere. This is why today is the biggest day of the year in countries like Australia, New Zealand and South Africa.
The North Hemisphere is tilted towards the sun for six months of the year. This brings direct sunlight into the hemisphere. Areas in the North Hemisphere, meanwhile, have a hot season. The remaining six months the area goes away from the sun and the day starts to get shorter.
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Does it have an effect on the season as well?
Winter solstice begins to grow cold. Starting today is considered the beginning of cold in the North Hemisphere and the beginning of heat in the South Hemisphere.
