
In the old days, the sky was on how to make something mystical and mythical, as if it had a message for mankind. The invention of the telescope showed how great and amazing is the sky. There is so much more to learn, and much of what is beyond our atmosphere is still a mystery. In the house of the school design programs that I always teach me how the sky actually tells us many things. In today's activity, I will give you some basics of binoculars and said the fundamentals of the time by clicking on the stars.
As a junior astronomer is not so expensive. Imagine just lying on the grass and look at the stars. It costs nothing! But I warn you ... Stern view, you can become addicted! At least history tells of men who spent their whole lives studying the stars.
Home School Teacher, you can read about the stars from the comfort of your home. If you are interested in the stars, you will be with tons of questions. Why do stars twinkle? Why do they move? What are they? How far are they? How big are they?
Visit your local library or tell your parents to take you to the local astronomy club to a must. You are surprised at the telescopes and want to rent a portable one. But then the dream of your own telescope and lie on the grass with cookies and cocoa, and enjoy all the wonders in the sky.
Home For school programs, I recommend a pair of hand-held binocular with a 50mm lens and a 7mm exit pupil. The main lenses collect light rays and the exit pupil can be just the right amount of light through. Choose a pair of binoculars with a magnification of 10x and no more. The higher the magnification is, no doubt, a better resolution, but a slight shake of the hand, and you lose the star you are searching.
You can use a good 10 x 50mm-pair or a pair of 7 x 50mm for only 100 U.S. Dollar. One and a tripod L-adapter would be nice accessories to provide for.
Now!
Telling time looking at the stars
to tell the time, you first need to find Polaris, which also includes the North Star or the Pole Star. Polaris is a bright star seems to be that the stationary, while the other stars seem to move. Some people prefer to first raise the Big Dipper, which is a constellation that is a car, or a bowl with a handle. There are two stars on the side of the bowl to the handle, and they are called Dubh and Merak. If these stars with an imaginary line across the entire length of the line 5 times up, you will find Polaris.
Now imagine a round the clock with Polaris in the center.The imaginary line is the hour hand of your clock valuation (no minute hand). You will notice that the hour hand (and the Big Dipper) moves around the Polaris in a closed circle. So your imaginary hour hand moves around the Polaris as well as the hand of a clock. The only difference is that they move counter-clockwise, and therefore you have to imagine the clock as a mirror image of your kitchen clock. This means that 12 are in the same place, but 1 is in place of 11, 2 in ten, 3 are in the 9, and so on.
Depending on where you live, on the clock of the 1st March, you will find that your imaginary hour hand to 12 points. Well, if the hour hand moves at 1 (usually 11) will have 2 clock in the morning. You must include two hours for every 5 minute mark. If the hour hand is 3 (usually 9), the time is 2 times 3, ie 6 in the morning. This gives you a fair idea of how our ancestors tells the time by clicking on the sky.
You can make a star turn on a clock Astronomy Shop. By turning the paper to select the exact position of the Big Dipper, you can tell the time.
For your free "Home School Parent's Guide to Teaching Science," filled with great science experiments and activities, visit the link below
Autor:
Aurora Lipper Aurora LipperLevel: Basic PLUS
I attended Cal Poly State University in San Luis Obispo, California, where I obtained a Bachelor's Degree in Mechanical Engineering (with a minor in Mathematics ... ...
A great free resource for really cool science experiments and activities is the Homeschool Science Experiment Guide.
Another good homeschool resource for science ideas, experiments and activities, is the homeschool science blog (just click on the Blog link). Definitely worth bookmarking.
Have Fun!
About the Author
Aurora Lipper has been teaching science to kids for over 10 years. She is also a mechanical engineer, university instructor, pilot, astronomer, a real live rocket scientist (You should see the lab in her basement!) and a mom. She has inspired thousands of kids with the fun and magic of science.
Added: May 16, 2009
Source:
http://ezinearticles.com/