The first time that you gaze up into the night sky and feel the wonder of the universe is the time when most individuals, even the most venerated professional astronomers, think back to when they think about their initial interest in the stars. It is normally a very extraordinary moment, when an adult took you by the hand, pointed at the stars and said: ‘Look, that is the Pole Star’.
Country people will probably discover the night sky earlier than city dwellers because the atmosphere above a city is normally so polluted that you cannot see the stars from below. There are two types of pollutants that prevent you from seeing the stars in a city, smoke and light. Street lights give off a corona that stops you from seeing the weaker light from the stars behind.
If you want to bring back that instant in your life, why not take a child out into the country to look at the stars one night? If you have a pair of binoculars, so much the better, but they are not vital. If you have forgotten which stars are which, get a book on the topic or a map of the night sky. Nowadays you can download a map of the night’s sky for the day that you would like.
The night sky really changes each night. The stars and the constellations do not move much, so you should not have too much trouble finding them, but if a planet is passing by, it will be in another part of the sky each night, which is why it is helpful to have an up-to-date map of the night sky for the date you want to go star gazing.
One of the hardest concepts for a child (or anyone else for that matter to comprehend is the scale of the universe – the sheer size of it. Here are a couple of facts that will amaze most individuals:
1] Our Sun is a star in the galaxy known as the Milky Way and it has its own planets revolving around it. However, there are likely to be 100,000,000,000 (one hundred billion) stars similar to our Sun in the Milky Way.
2] The Milky Way is one of approximately tens of billions of galaxies in the universe and the Milky Way is one of the smaller galaxies.
3] It would take over 100,000 years to get from one edge of the Milky Way to the other, if you were going at more than five trillion miles per year or more than 570 billion miles per hour.
4] It has been calculated that our Milky Way is 14,000,000,000 (fourteen billion) years old
It is very hard to comprehend astronomical numbers like this but this might help:
1 billion seconds ago, it was 1980
1 billion minutes ago, Jesus had only just passed away
1 billion hours ago, mankind was not yet on the planet
Owen Jones, the author of this piece, writes on a variety of subjects, but is now concerned with the kids building set. If you would like to know more, please visit our website at Smart Toys for Kids.
The Ancient Chinese Lunar Calendar
Monday, March 1st, 2010Prior to their adoption of the Western solar calendar scheme, the Chinese almost wholly followed their own lunar calendar for determining the times of planting and harvesting and festival days. Although people in China today use the Western calendar for almost all business, governmental and practical matters of daily life, the old method still serves as the basis for determining many seasonal holidays. This coexistence of two calendar schemes has long been accepted by the people of China.
However, this does not only happen in China, it also happens in most other Eastern countries, like Thailand, and most Arabic countries.
A lunar month is determined by measuring the period of time needed for the moon to complete its full cycle of 29 and a half days, a standard that makes the lunar year a whole eleven days shorter than its solar counterpart. This difference is made up every 19 years by the addition of seven lunar months.
The 12 lunar months are further divided into 24 solar divisions characterized by the four seasons and times of heat and cold, all of which bear a close relationship to the annual cycle of agricultural work.
The Chinese calendar – very much like the Hebrew calendar- is a combination of the solar and lunar calendars in that it attempts to have its years coincide with the tropical year and its months coincide with the synodic months. It is not surprising that a few similarities exist between the Chinese and the Hebrew calendar.
For instance, an ordinary year has 12 months, a leap year has 13 months. An ordinary year has 353, 354, or 355 days, a leap year has 383, 384, or 385 days. When determining what a Chinese year will be like, one needs to make a couple of astronomical calculations.
First of all, you have to determine the dates for the new moons. In these cases, a new Moon is the completely black Moon (that is to say, when the Moon is in conjunction with the Sun), not the first visible crescent, as is used by the Islamic and Hebrew calendars. The date of a new moon is then the first day of a new month.
The reason why the majority of countries which had their own calendars had to dump them in favour of the Western, Julian calendar that we use today, is business. First the British and then the Americans ran international business and they used the Gregorian calendar. Anyone who sought to work with them had to follow suit. This is why national policy often varies from local custom in Third World countries.
The government desires to deal on the International markets, but the ordinary family in the country can not. So, the government took up the Gregorian calendar but the people only pay lip service to it. I live in Thailand and people here do not even use the 24 hour day divided into two halves. Their day has four sections of six hours each and the first part starts at 6AM, not midnight. Therefore, they have four 4 o’clocks a day, for instance but no 7 o’clocks. They are also 543 years ahead of us, although this is more common, for instance in Muslim countries.
Owen Jones, the author of this article, writes on many topics, but is currently involved with researching Franklin planner pages. If you have an interest in calendars, organizers or promotional calendars, please go over to our website now at Promotional Desk Calendars
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