mathematics-

With all the new development in technology today, one of the most advanced areas of modern science is laser technology. Lasers have been around for awhile (the first visible beam laser was invented in 1960), and many people are becoming more interested in their capabilities for both leisure use and specific applications.

Lasers come from many different sources. To say that not all lasers are the same would be an understatement. In fact there are so many different kinds of lasers that it can be almost overwhelming to try and learn about them all. Just knowing the basic names of each kind of laser, or even the main categories they fall under can be very informational. Here is a list of the main categories lasers fall under and a basic description of what the lasers within each category are capable of:

Gas Lasers- the use of these lasers ranges from bar code scanning to laser eye surgery.

Chemical Lasers- mainly used as weaponry by the military.

Dye Lasers- used to remove birth marks

Metal-vapor lasers- used for printing, dermatology, and high speed photography.

Solid-state lasers- used for tattoo removal, spectroscopy, and many other uses.

Semiconductor lasers- used for telecommunications, holography, printing, welding etc.

This list is only gives a very brief, incomplete explanation of what the different kinds of lasers within these categories can do and are used for. There are also a few other kinds of lasers that don't fall within these categories. Some of these include: free electron lasers, nickel-like samarium lasers, raman lasers, and nuclear pumped lasers. The use of these kinds of lasers ranges from atmospheric research to optical signal amplification for telecommunications.

Most highly technical lasers, like those listed above, are being used for research in various areas including many medical fields, military weaponry, and other kinds of science explorations. Lasers have created an incredibly vast selection of tools to use in so many areas of technological advancement that it is hard not to notice them.

In addition to the many industrial and scientific applications for lasers, many people like to use lasers for their own personal experimentation and demonstration. Green lasers are becoming very popular right now because of their intense brightness and portability. People are becoming more familiar with laser technology through experimentation of portable lasers. Some portable lasers are so bright and powerful that the radiation they can generate needs to be harnessed through an infrared filter built into the laser. Many portable green lasers that you can buy today are not equipped with such filters and people should use caution when purchasing them.

Mike Hasson is an expert at researching information relating to laser technology and teaches people about lasers. Through many hours of research and observing lasers, he has developed a competitive edge when it comes to understanding lasers and teaching people information about them. Visit my website Wicked laser for more information today! - Show quoted text -

posted by fdwvsmr55035  # 12:49 PM 0 comments

Zero is not just a word or a numeral but a symbol of the pride of the Indian nation and the fact that the eastern culture's research and development in the field of science and mathematics is the very foundation on which the medieval world's discoveries were made and yet more future ones still remain to be made through forgotten zeroes of the east.

In this ever changing dynamic world no one really cares about this sweet little zero, but imagine if this is taken out of our lives then all the scientific developments will come to a chaotic end and your four to eight figure salary will be a single digit trauma. NASA will have to cancel their trips to mars and the moon, Hubble will just fall to the earth. Furthermore, our modern mathematics will be shaken and will find new abrupt faces to explain its complex theorems. In short, the entire world will be a bear's garden in the absence of this single numeral called 'Zero' and written as '0' and sometimes pronounced as just O.

Zero was not the brainchild of Greek, Arabic or the Western world but the product of an Indian mathematician called Brahmagupta in 598 AD. Brahmagupta was born in Gujarat in the city of Bhinmal which is currently situated in the North West Rajasthan. Brahmagupta was the head of the department of mathematics and Astronomy at the university set up by another great Vedic Indian mathematician Aryabhatta at the city of Ujjain which was at that time a great center for learning Science literature Sanskrit and the art of prediction called astronomy.

Read about Brahmagupta and his mathematics. Brahmagupta was one of the greatest mathematician of the world. The credit for the invention goes to this great mathematician.

posted by fdwvsmr55035  # 12:49 AM 0 comments