Posts Tagged ‘science’

Astronomy – Important Pre-Christian Dates

Wednesday, February 24th, 2010

There is no doubt that astronomy is the oldest science and there is also no hesitation that astronomy was being studied by everyone, not only the wise men, thousands and thousands of years ago.

We do not know precisely why they did it, but we can surmise that early man noticed a correlation between the weather and the stars, which were themselves not fully understood, of course.

Early man, probably even as far back as Neanderthal man, noticed the relationship between the weather and herd movements and crop growth, or at least fruit and nuts on local trees, if they did not have planted crops.

This means that people could see a connection between the stars and food availability. This relationship was probably ritualized into some sort of religion like early Wicca. Therefore, the stars became a very important part of the lives of every single person and it is likely that astrology and astronomy were widely intermixed by the average person.

However, there were also people who did not only use the stars as some vast celestial clock and who tried to make sense of the whole shebang. I am going to narrate below, eight of the most important dates or years in the history of astronomy before Christ walked on the Earth. In no way forget that they had nothing but an abacus to do there calculations and no telescopes, which came about two thousand years later.

585 BC: Thales of Miletus (c. 625- c. 547), a Greek, predicted a solar eclipse in Asia Minor purely on the basis of his observations and calculations. It was not a lucky guess!

c. 400 BC: the astronomer Oenopedes (5th. century). also a Greek, announces that the Earth is tilted on its axis with respect to the Sun.

352 BC: the Chinese report what they called a ‘guest star’, a supernova, which was the earliest reported sighting.

340 BC: The astronomer, Kidinnu (b. Babylon c. 379 BC) discovers the precession of the Equinoxes, ie the apparent change in the position of the stars caused by the Earth’s wobbling on its axis.

c. 300 BC: a ‘committee’ of Chinese astronomers compile star maps of the visible universe.

c. 240 BC: Chinese astronomers observe and make notes about Halley’s Comet. Also Eratosthenes of Cyrene (c. 276 – c.194 BC), a Greek, correctly calculate the Earth’s dimensions.

165 BC: Chinese astronomers notice sunspots for the first time.

c. 130 BC: the astronomer Hipparchus of Nicea (b. 147 BC), a Greek, correctly calculates the distance to the Earth’s Moon and also rediscovers the precession of the Equinoxes.

You will see from the dates above that clearly not everyone let nature and the stars govern their lives, as the common farmer or hunter did. Some men actually put pen to paper, but before pen and paper even existed, and tried to work out ‘why these manifestations took place?’.

These individuals must have been remarkable men to have worked these measurements out by calculation, observation by the naked eye and rationalization alone.

Interested in astronomy, then why not visit our website at: http://astronomy.the-real-way.com

Looking For A Hobby How About Astronomy

Wednesday, February 24th, 2010

Did you know that astronomy and space is really all about education. Did you also know that astronomy is also one of the oldest subject’s of study for man kind? To be straight about it, astronomy is one of the oldest sciences that has ever been studied. So the study of our universe is not new but you should remember that astronomy is a science. This is a science for everyone. And, astronomy is a field about which most of the world knows very little.

While astronomy is a science, it has become more of a hobby than anything else. International boundaries blur when it comes to the study of astronomy.. Astronomy is more of an exact science than any other science that people study. It is also an observational science that requires observations and precise calculations, particularly when recording the positions of the constellations. Astronomy is truly bigger than all of us.

The use of physics and astrophysics is extremely important when researching the stars. So is there a difference between astronomy and astrophysics? The study of astrophysics is more the study of how the stars and universe formed to begin with. Astronomy is more a matter of making observations.

The telescope is undoubtedly a very important investigative tool in astronomy. Galileo was the first person to use the telescope to aid him in the study of the stars. Purchasing a telescope is something that most people who get interested in astronomy need to do.

Now when you are ready to purchase your first telescope, make sure to research the different types and styles of telescope’s to choose the best one for your needs. Buying a telescope is almost the same as buying a car or clothing, no two people are looking for the same thing due to the fact that all people have different tastes. While you will want to get the best telescope you can find you must understand that they can cost anywhere from a hundred to a few thousand dollars so make an affordable choice for your needs.

Telescope parts and accessories can be a very useful addition to your astronomy experience. If you’re just starting out, look for a quality, affordable telescope for beginning astronomy students and casual observers.

You may want to search in your family and friends garage’s and attic’s, many people have a telescope packed away somewhere. You also need to understand that if you acquire a older telescope the lens’s and technology will not be up to date with todays telescopes. You will find that many people will want to use your telescope as long as you have it set up, people are curious by nature and space is the final frontier.

Your friends and family will also be very curious. Astronomy is our tool for unlocking the knowledge of the heavens. As mentioned above, it may be a science, but it also is an outdoor nature hobby. And while it is a science, you don’t need to think about what other people think of you, because everyone thinks that it is really cool. And if you are looking for a way to spend more time with your family, astronomy could be exactly what you are looking for, due to everyone’s curious nature.

Do you read your horoscope? Did you know that your horoscope is created by the stars.

If you would like to get your free daily horoscope, even for gemini, use one of these hyperlinks.

Hybrid Cars vs. Conventional Cars

Thursday, February 18th, 2010

Today, the question on everybody’s mind is, what is the significant difference between a hybrid car and a conventional vehicle? They suppose that there has to be some good reason why people are asking themselves whether hybrid cars are worth the cost and checking their wallets and bank accounts to see if they have enough money to get a hybrid car.

There has to be some reason why other people wouldn’t consider shelling out the money for a hybrid car because they feel their conventional car gets them to where they need to go just fine. Here are some of the reasons why a person may choose a conventional car over a hybrid car and vice versa.

Hybrid cars are much more expensive than conventional cars: because hybrid cars have a much more complex internal design, they do still have a fairly weighty price tag on them. However, conventional cars, which have become more efficient as the years have gone on, are quite affordable these days. Many people are selling their old conventional cars to buy newer, more efficient models.

In fact, they are so inefficient, in comparison with new models, that some people even give their old cars away. However, since most of the general populace has never owned a hybrid, there aren’t many people selling used hybrid cars yet. Therefore, a person wanting to obtain a hybrid would probably have to purchase a new one from a car showroom.

Both a hybrid car and a conventional car make use of a similar type of battery: a hybrid car and a conventional car both make use of lead-acid batteries that have enough renewable stored energy to turn over a small electric motor. These batteries are what are called “gear reduced”. That means that they can turn over this electric motor at approximately 300 rpms, which generates enough torque to turn over the engine. It is this process that starts the main petrol or diesel engine.

But even though a hybrid car uses a lead-acid battery, the battery it uses to drive the car’s electric engine is constructed differently. This kind of battery is known as a ‘deep cycle battery’ and it can be compared to the batteries that are used to power electric fork-lift trucks, milk floats or golf carts.

That’s the main difference between a hybrid car and a conventional car. One person could choose a hybrid car because it makes them feel more secure. For example, if a person buys a hybrid car, they can feel safe because their car will be less likely to run out of petrol. Another person might choose a conventional car because the cost of gas doesn’t really bother them that much at all.

However, a conventional car provides security as well, but of a different sort. With a conventional car, a person can be sure that they can always go to a junkyard, if they need to replace old parts on their car. On the other hand, those with a hybrid car will more than likely have to pay some pretty pricey repair receipts if something goes wrong.

However, the final decision is all yours. There are risks involved with both types of cars. But those who like to try out new technology might just consider splurging out on a hybrid car.

If you are interested in the insides of New Hybrid Vehicles, just visit our website on http://new-hybrid-vehicles.com

Biometrics The New Way To Identify Individuals And Create Better Security For Your Business or Even Your Home

Wednesday, February 10th, 2010

Biometrics is, generally, the subject of what can be measured of your biological features. As it pertains to computer security, biometrics has to do with authentication techniques that utilize distinguishing physical features that can be mechanically substantiated.

Biometrics has fast emerged as a new technique for identification and has already found practical applications in most hi-tech security fields. It is this particular aspect of the technique that we have selected to center on. We will try to identify how well biometrics can be applied to security and certification in various places.

A very normal idea amongst the flocks is that, Biometrics is meant only for the rich and individuals with loads of cash. But that is a far path from reality. Biometrics other than being extremely efficient, is also very cost-efficient.

Utilizing biometrics for discovering and authenticating different people, provides some unequaled rewards. Exclusively, biometric authentication provides an identification on an intrinsic character of a persons body. Soon to be relics, such as smart cards, magnetic stripe cards, normal keys, and so on, can be left at home or duplicated. Keywords can be forgotten or observed.

Fingerprint electronic scanners are the most normally applied biometric devices. They made there way into the mainstream several years ago, when producers started designing the technology into laptops and normal computer keyboards, along with providing stand-alone designs for a variety of security applications.

A persons prints remain unaltered throughout a persons life. With over 140 years of print comparing worldwide, no two individuals fingerprints have ever been encountered to be identical, not even the fingerprints of identical twins. Good fingerprint readers have been put in PDAs like the iPaq Pocket PC, so the scanning technology is even unproblematic. Might not work in industrial applications due to the fact that it calls for clean hands to operate properly.

There is also voice biometrics. Similar face recognition, voice biometrics creates a way to verify an individuals identity without the subject’s knowledge. It is much simpler to fool (by recording peoples voices), it’s not possible to take advantage of an analyst by imitating another person’s voice.

In closing, biometrics has become available to all walks of life at all ranges of prices.

Find out more about uk biometric at his website on: information management security.

Biometrics The Greatest Way To Identify Individuals And Create Better Security For Your Company

Sunday, February 7th, 2010

Biometrics is, generally, the subject of what can be measured of your biological features. As it pertains to computer security, biometrics has to do with authentication techniques that employ distinguishing physical features that can be mechanically substantiated.

Biometrics has fast come out as a promising technique for authentication and has already found usefulness in quite a few hi-tech security fields. It is this exceptional aspect of the technology that we would like to center on. We will attempt to depict how well biometrics can be utilized for security and certification in different places.

A very normal idea amongst the flocks is that, Biometrics is meant only for the rich and individuals with loads of cash. But that is a far path from reality. Biometrics other than being extremely efficient, is also very cost-efficient.

Utilizing biometrics for discovering and certifying human beings, offers some unequaled advantages. Exclusively, biometric authentication provides an identification on an intrinsic character of a persons body. Soon to be relics, similar to smart cards, magnetic stripe cards, physical keys, and so on, can be left at home or duplicated. Keywords can be shared or forgotten.

Fingerprint electronic scanners are the most normally applied biometric devices. They made there way into the mainstream several years ago, when producers started designing the technology into laptops and normal computer keyboards, along with providing stand-alone designs for a variety of security applications.

Fingerprints stay unaltered throughout an individuals life. In over 140 years of print comparison from all over the world, no two individuals prints have ever been noticed to be the same, not even the fingerprints of identical twins. Really good fingerprint scanners have been put in PDAs like the iPaq Pocket PC, so the reader technology is even easy. They may not function properly in industrial applications since it calls for clean hands to perform properly.

Fingerprint biometrics is just one of the technologies there is also voice biometrics. Comparable to face recognition, voice biometrics creates a way to authenticate an individuals identity without the persons knowledge. It is much simpler to fool (using a tape recording), it is not possible to take advantage of an analyst by simulating another person’s voice.

To sum up, biometrics has become available to every person at all ranges of prices.

Find out more about biometric security at his website on: information management security.

Biometrics The Greatest Way To Identify Individuals And Create Better Security For Your Company

Tuesday, February 2nd, 2010

Biometrics is, generally, the subject of what can be measured of your biological features. As it pertains to computer security, biometrics has to do with authentication techniques that employ distinguishing physical features that can be mechanically substantiated.

Biometrics has fast emerged as a new technology for identification and has presently found practical applications in most hi-tech security fields. It is this particular aspect of the technique that we have selected to concentrate on. We seek to explain how easily biometrics can be utilized for security measures and authentication in assorted places.

A rather normal misconception amongst the flocks is that, Biometrics is available only for the rich and individuals with huge pockets. But that is a long way from the reality. Biometrics other than being very efficient, is likewise very cost-efficient.

Utilizing biometrics for discovering and certifying human beings, offers some unequaled advantages. Exclusively, biometric authentication provides an identification on an intrinsic character of a persons body. Soon to be relics, similar to smart cards, magnetic stripe cards, physical keys, and so on, can be left at home or duplicated. Keywords can be shared or forgotten.

Print electronic scanners are the most normally applied biometric devices. They made there way into the mainstream a couple of years ago, when producers began designing the technology into laptops and normal computer keyboards, along with supplying stand-alone scanners for a mixed variety of security applications.

Fingerprints stay unaltered throughout an individuals life. In over 140 years of print comparison from all over the world, no two individuals prints have ever been noticed to be the same, not even the fingerprints of identical twins. Really good fingerprint scanners have been put in PDAs like the iPaq Pocket PC, so the reader technology is even easy. They may not function properly in industrial applications since it calls for clean hands to perform properly.

There is also voice biometrics. Similar face recognition, voice biometrics creates a way to verify an individuals identity without the subject’s knowledge. It is much simpler to fool (by recording peoples voices), it’s not possible to take advantage of an analyst by imitating another person’s voice.

To sum up, biometrics has become available to every person at all ranges of prices.

Find out more about uk biometric at his website on: information management security.