Showing posts with label Science. Show all posts
Showing posts with label Science. Show all posts

Sunday, October 23, 2011

How Galileo's Telescope Created the Modern Science of Astronomy

!9# How Galileo's Telescope Created the Modern Science of Astronomy

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Before Galileo turned his telescope toward the night sky the act of astronomy was pretty much an astrological pursuit where objects and motions of object in the sky were explained using ancient and archaic understandings of the universe and how it works.

But he didn't just observe and note new objects in the sky. He applied scientific methods, mathematical laws, and logical thinking to what he observed and it is this cross discipline approach that created the modern science of observational astronomy.

Galileo is often thought of as inventing the telescope. He didn't invent the telescope but he was the first person to turn one toward the night sky. And the observations he made created the new science of modern astronomy where telescopes are used to help us understand our universe, our place in it, and how it works.

Galileo first heard about the mysterious telescope in 1609 and set out to make a copy for himself. This first telescope magnified images about three times. And over the course of a decade Galileo continued to make more telescopes and his most powerful one magnified images about ten times. This telescope enabled him to see things never before seen. And it enabled him to change our view of the universe and of the objects in the sky.

The first thing that Galileo turned his telescope to was the moon and by observing it over the course of many nights he made an important discovery. He saw that dark areas on the surface grew and shrunk depending on where the moon was in relation to the sun. From this he made the correct deduction that these dark areas were shadows cast by craters and mountains. He further explained with geometry that the height of the mountains and depth of the craters could be correctly calculated. This was an astonishingly important revelation in our view of the universe because it was previously believed that the moon was a smooth surfaced object.

Another extraordinary observation, and the most important, that Galileo made was the discovery of the four largest moons around Jupiter. They were previously unviewable but with his ten-power telescope he could see them. And after viewing them over the course of several nights he observed that they moved. With further careful observation and calculation he proved that they revolved around Jupiter. And this was a universe changing observation because it was previously believed that everything in the universe revolved around the Earth.

Galileo went on to make many telescopes and to make many other important observations in both the night and day sky including the discovery of spots on the sun and the discovery of the rings of Saturn. His observations in the sky spurred on many other telescope makers and astronomers to further explore the amazing and mysterious objects in the sky. But more importantly he also spurred on other astronomers to apply the laws and lessons of mathematics and logic to their observations in a quest to understand how the universe works.

This creation of the modern science of telescopic astronomy was clearly born in 1610 when he published his work called "Sidereus Nuncius" or the "Starry Messenger". This work is still available to this day and is considered one of the most important written scientific works.


How Galileo's Telescope Created the Modern Science of Astronomy

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Thursday, September 15, 2011

Popular Science Toys For Kids

!9# Popular Science Toys For Kids

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Why not let your kids drain their brains on another game console when it comes to something that is fun to get, and will help them learn at the same time? Toys of science have grown a lot since we were kids. Telescopes now automatically find the planets and stars, ant farms use NASA technology and new kits for science experiments let your children are budding forensic experts. Here's a guide to the most popular science toys for children.

Choosing the best telescope for children

One of the bestScience toys parents can share with their children, is a telescope. The first time the child sees the wonders of the sky is a magical moment, that I will never forget. It is not quite the child throughout the night camped in the backyard watching the stars instead of cracking his thumb on some mindless video game? =

Here are some tips for buying a telescope at home. Many parents focus on power, or magnification, when trying to understand what kind of telescope to buy their child. InIn fact, the opening or the diameter of the telescope is what determines how much you can do with a telescope. So, for the best telescope for children, have the largest aperture you can take the strongest power.

A stable support is important. There's nothing more frustrating than fight with a wobbly tripod, if you want to concentrate on the rings of Saturn. One of the best telescopes for 21 061 children, the Celestron AstroMaster 70 AZ refractor telescope. Not only is there asolid, stable platform, it also comes with the software with more than 10,000 celestial objects and images to help your child's eyes, the sky every night.

New Toys Natural Sciences

Science toys are clear plastic bottles with Sea Monkeys have grown full of changes. Even the classic has been updated ant. Borrowing technology from NASA, the Antworks Illuminated Fascinations Ant is a self-contained farm, where the ants dig through a special gel for foodthey can also eat. Quite large, but very cool.

Other science toys for children can include mini-insects, frogs and butterflies, habitats and special collectors who collect your children to secure their creepy-crawlies. Now your children can be the marvels of nature, without having to look beyond the search for toads in the bag laundry care time.

The classic children-microscope

If the magic of the immense sky opens up on your child, it is also the miracle minutethe microscopic world. The modern children's microscope is robust, secure, and looks too cool. If you are determined to microscopes Economic children, you might want to consider a good microscope kit. Otherwise, you will be hunting slides, sample containers, and any other accessories your child suddenly decides it needs.

One of the best kids microscope kit is a unique discovery of macro-microscope. It comes with all basic amenities, such as slides, tweezers and sample bottlesalong with a book of experiments and actual samples of fabric, including a true 900 years old Peruvian mummy! Perhaps your child is to ask the hair and toenails, stopped to save for them.

Science kits for kids easy

Science kits are used for the children teen nerd trying to create explosions in the basement with a junior chemistry set are limited. Today, it is easy for science kits for children are safer and more fun. Most science kits include bottles of simple chemicalsand all the laboratory equipment (tubes, glasses, tweezers, etc.) The young scientist needs to conduct explosive experiments not hours. Even more fun is the Electronic Snap Circuits SC-300 kit. The kit comes with clear instructions and easy to understand color and 60 snap-together parts that kids can build over 300 exciting projects including an AM radio, alarm, radio announcer, and more.


Popular Science Toys For Kids

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