Microscope comes in different type. Through the advent of time, more and more kinds of microscope have sprouted, each having a specific function. Through the course of time, more and more microscopes were invented by a lot of people. What a simple microscope invented by lowly glassmakers in the 17th century has now evolved into becoming a clan of microscopes with different functions, belonging in different types and family.

We have the simple and basic monocular microscope which eyepiece is only one. We also have a binocular microscope which further comes into different kinds, such as the stereoscopic binocular microscopes, binocular tissue microscopes and many more.

As of this moment, our featured product is the tissue culture microscope, a specialized microscope used while you are studying histology and in culturing and in reproducing the tissue. The best thing about the tissue culture microscope is that it is inverted. When we say inverted, the objective of the microscope always faces upward. Why? This is because the right way of viewing a specimen in above the Petri dish where the specimen is being placed. All the objectives are structured in a long pattern. This is to allow the light to pass through below the glassware which holds the tissue culture specimen.

When you view a tissue, especially when the illumination applied to the microscope is a brightfield one, the specimen would appear to be translucent. Another model of a tissue culture microscope has phase contrast illumination. The phase contrast tissue microscope contains an inverted tissue microscope model having the capability of viewing the specimen to like that of a fluorescence microscope. That is why more and more university students of biology, professors, researchers, scientists, and other microscope enthusiasts are choosing this kind of microscope especially in their studies about the tissue. Likewise, the tissue microscope is also gaining prominence in hospitals, clinics, and health care units. If ever you want or you decide to buy whole, brand new unit of a Tissue culture microscope, don’t hesitate to call us. Likewise, you may log in at www.tissueculturemicroscopes.com. We also offer you a much-needed advice should you need further information about choosing the right microscope. Our skilled, well trained staff is more than willing to assist you as they are equipped with all the knowledge and idea about the game of tissue culture microscopy.

No other microscope company offers any better services in terms of microscopes and microscopy than TrueVision Microscopes, Inc. Here is a business so dedicated to this profession that the workers and the owner all give all of their heart for the betterment of the service that they are offering to their customers. That is why; this St. Louis, Missouri-base company is growing both in prestige and in size as one the fledgling and leading microscope dealing company not only in the continental United States but also through the world, spanning seven seas and five continents.

The success of TrueVision Microscope as a leading name in this trade is not only based on the efforts of a single person, but through the concerted efforts of many workers who are trying their best to give utmost and excellent services as demanded by their clients. They simple never say no with regards to the needs of their customers in terms of microscopy and microscopy equipment. At the very moment a customer buys a product, TrueVision Microscopes employee’s waste no time in packing and delivering it to the right destiny and this happens in no slow pace. The essence of delivering products on time is planted into their minds, thus, they have a strong, quality customer service, enabling them to speedily ship the cargos in the nick of time.

TrueVision Microscopes, Inc., as a 21st century company which adheres to the computer age, has its own email address and website where you can comfortably visit, view, and select the product of your choice. Sight-seers are also allowed to view their product so as to help them gain knowledge from the information displayed together with the microscopes pasted on screen. The companies email support is sales@truevisionmicroscopes.com. The email support receives and dispatches thousands of email a day, a proof at how zealous people are in having a microscope.

Microscopes offered here at TrueVision Microscopes vary from the simple, basic one which comes in very affordable and reasonable prices to more professional, high-powered microscopes, in demand to both the professionals and scientists, like tissue culture microscopes, ENT Microscopes, blood microscopes, and many more.

For those are very fast-paced and high-tech, we also sell USB Microscopes to enable the users to attach what they see to the screen of their computer and view it at a more comfortable means.

So what are you waiting for? Don’t wait for this opportunity to pass from your grasp. Email or visit our site at the comfort of your computer. We have excellent products for you, and we have modern, latest ones which I am sure will be very enticing to your taste!

by Philip Yaffe

Growing up in the United States in the 1950s, I was used to such things as inches, feet, yards; ounces (liquid and solid), pints, pounds, etc. Then I entered my first physics class and was bowled over by the metric system.

“My God, this is so much better! Why don’t we use this?” I exclaimed.

After all; remembering that a kilometer is 1,000 meters is so much easier than remember that a mile is 5,280 feet and that a foot in turn is 12 inches. Remembering that a kilogram is 1,000 grams is so much easier than remembering that a pound is 16 solid ounces. Remembering that a liter is 1,000 milliliters is so much easier than remembering that a pint is 16 fluid ounces, that two pints (32 ounces) is a quart, and four quarts (128 ounces) is a gallon.

The Celsius system also seemed much easier than the Fahrenheit system. After all, water freezes at 0° C and boils at 100° C, which appeared considerably more logical than water freezing at 32° F and boiling at 212° F.

So why did the United States, Great Britain, and a number of other countries use these weird systems?

I got the answer the moment I stepped outside of the physics classroom. Although I mathematically understood metric units, I had no feel for them. If I went into a restaurant, I knew exactly what I was getting if I ordered an 8, 10 or 12 ounce steak. But if the menu had shown a 230, 280 or 340 gram steak, I would have been completely lost. Likewise, if I had to drive 60 miles, I understood that this meant about an hour on the road. But if I had to drive 95 kilometers, I would have had no idea of what this meant — other than it seemed to be considerably farther.

Every change is one’s basic routine is difficult, even if it is clearly an improvement. So it will still be some time before Liberia, Myanmar (Burma) and the United States, the only three countries that have not yet adopted the metric system, finally make the change. But it does seem to be inevitable.

France adopted the metric system in 1799, one of the consequences of the French Revolution. Japan made it official in 1868 and Russia in 1917. Even Great Britain, which initially spread inches, feet, miles, ounces, pounds, etc., around the world, joined the club in 1965.

Now that the world has gone so massively metric (and the holdouts are likely to do so in the foreseeable future), the question is: Why not complete the job? The fact is, even metric countries still use a number of old-fashioned, non-metric units that are largely irrational and mathematically cumbersome.

For example, why is an hour 60 minutes, and a minute 60 seconds, when an hour could be 100 minutes and a minute 100 seconds? For that matter, why is a day 24 hours rather than 10 hours, each hour made up of 100 minutes and each minute made up of 100 seconds? And why stop there? Why is the year made up of 12 months rather than 10?

If you think about it, the year used to be made up of ten months until Julius Caesar (July) and Caesar Augustus (August) stuck their vanity into it. Vestiges of the old ten-month calendar can still be seen in the names of the last four months of the year: September (septum = seven), October (octo = eight), November (novum = nine), and December (decem = ten). These should have been updated centuries ago.

Another apparently bizarre unit is the 360 degrees of a circle, with each degree being divided into 60 minutes, and each minute divided into 60 seconds. Couldn’t the circle be 100 degrees, divided into 100 minutes, divided into 100 seconds?

Well, yes it could.

Some mathematicians might argue that a system based on 60 has certain advantages for calculations over the metric system based on 10. For specialty applications, they could retain the 360 degree system, but there is no reason why the rest of us should suffer with it. In fact, for certain applications the 360 degree circle has been abandoned in favor of the two radian circle, based on the formula for circumference C = 2 π r (circumference = two times pi times radius)..

It is possible to cite many other measures that could be decimalized. However, we must be careful to make a distinction between conventional measures and natural ones.

It is a convention to have 60 seconds in a minute, 60 minutes in an hour, and 24 hours in a day. For whatever reason, we chose these units. However, it is not a convention that the year has 365 days because this is the time it takes the Earth to orbit the sun. This is a natural unit dictated by nature. It would make no sense to divide the year into 100 days just to make calculations easier.

Such non-sense is not beyond human ignorance. At the end of the 19^th century, an American state came very close to passing a law fixing pi at an even 3 in the belief that using it at its true value (3. 3.14159265 . . .) was just too cumbersome!

When considering possible changes, we should be aware that the definitions of fundamental units can change over time, often due to developments in science.

For example, since 1898 the kilogram, the basic unit of mass, has been defined in terms of the of the international prototype kilogram (IPK). This is a specifically constructed block of metal alloys maintained under minutely specified environmental conditions at the International Bureau of Weights and Measures in Sèvres, France. However, since the IPK is subject to mass drift (changes in mass over time), serious discussions are now going on to redefine the kilogram in terms of a fixed number of carbon-12 atoms, silicon atoms, or other fundamental, reproducible physical properties.

The fact is, the IPK is the only SI unit (International System of Units) still defined in terms of a carefully conserved reference model. All others have been converted to physical properties reproducible anywhere in the world. For example, the meter used to be defined by a platinum-iridium rod. However, today it is defined as 1/299,792,458 of the distance travelled by light in 1 second (the “light-meter”), the denominator of the fraction being the speed of light in a vacuum

So when will the circle, the clock, and the calendar go metric? Probably not in the near future, but for psychological reasons rather than scientific ones.

Although few people use the 360 degree circle in their daily lives, this is how they learned (and suffered through) geometry in school, so they would likely oppose changing it simply because it would be inconvenient to do so. Also, certain aspects of the 360 degree circle have become common currency in many languages, where the equivalent of an “about-face” is often described as a “180 degree turn”.

Everyone uses the clock and the calendar constantly; they are integral to the fabric of daily life. Any attempt to decimalize them is almost certain to engender extremely stiff opposition. For the vast majority of people, such a change would not be just an inconvenience, but a major upheaval.

For millennia, the prospect of “squaring the circle” remained a mathematical challenge. In 1882 it was shown to be impossible because of the transcendental nature of pi. Making the circle “less round” (going from 360 degrees to 100 degrees) is not impossible, but chances are it will seem that way for a very long time to come.

Philip Yaffe is a former reporter/feature writer with The Wall Street Journal and a marketing communication consultant. He currently teaches a course in good writing and good speaking in Brussels, Belgium. His recently published book In the “I” of the Storm: the Simple Secrets of Writing & Speaking (Almost) like a Professional is available from Story Publishers in Ghent, Belgium (storypublishers.be) and Amazon (amazon.com).

For further information, contact:

Philip Yaffe
Brussels, Belgium
Tel: +32 (0)2 660 0405
phil.yaffe@yahoo.com, phil.yaffe@gmail.com

This Italian mountain

The Cathedral is a Church of pink sandstone consecrated to winegrowing and grape-harvest. It has involved construction spanning the Early Christian, Carolingian, Romanesque and Gothic periods. The campanile, built in the 16C and modernised with the addition of Gothic windows, reaches 62 m. On the right side you will see the small Wine portal, which is decorated in imagery associated with winegrowing and grape-harvest. The church used to have exclusive rights to sell wine in front of this door.

In the Dominican Church (I Dominicani), you’ll see Frescoes by Friedric Pacher and by the Giotto school. This Church was Built in a Gothic style. It was than modified and then damaged during the secularisation of 1785. You must see Saint Giovanni Chapel (after the Rood Screen) for its frescoes by the Giotto school and its cloister, decorated in Frescoes by Friedrich Pacher.

At the Franciscan Church (I Francescani), admire a sculpted wood altar and a retable by Hans Klocker. This church burned down in 1291 and was then rebuilt in the 14C and the original arches put back a century later. The interior is marked by an Altar of the nativity in sculptured wood, decorated with a retable by Hans Klocker. The charming little cloister has elegant arches decorated in frescoes from the Giotto school.

From the day we are all born, we age everyday. As a young person, we don’t think about the later years in our life. We live in a very fast pace world today and it causes a lot of stress in our lives and as time goes on, the stress will affect us increasingly.

Everyone young and old, we all need to take care of our bodies and minds. By taking care of ourselves, it keeps us thinking, moving and helps prevent major illnesses such and cancer and many other diseases. We all have to work at keeping ourselves healthy and there is no better time than right now. The younger you start taking care of yourself the better it is; by starting early your catching things before they have time to progress.

So right now, start of by eating healthy. Keep an eye on that diet and make sure your not overeating, but eat enough to get vitamins you need to have. A good multivitamin is a good way to start adding supplements to what you don’t get in your food.

Food doesn’t always have the amount of vitamins anymore like they use to, and that starts at the farmer’s level. Don’t blame the farmer for this because they are just doing their jobs the same way we all go to ours everyday. The farmer has to add fertilizer, chemicals and even water to their crops to make them grow bigger, faster and for beauty too. Adding all these chemicals eat up all the natural vitamins that you need. Water has chemicals in it too; one reason why your water needs to be tested at least once a year especially if you have well water. Once the food is grown and ready to be shipped it is polished, coated to keep it nice and fresh looking during shipment, which is why this will take away some of the vitamins as well. Try to eat as much, homegrown food as you can and not processed foods. Fresh homegrown food is the best, since you get natural vitamins.

A good multivitamin isn’t going to hurt anyone. It is known that people who take a multivitamin everyday is in better health than someone who doesn’t. Sometimes your doctor may want you to take extra vitamin, as we grow older because our bodies change and sometimes require more of something. In addition, as we grow older our eating habits change and we don’t eat as much or we want to lose weight and don’t eat the right foods. Nevertheless, remember you can lose weight and still eat right.

As we grow older our bodies and mind change. All the stress we had growing up and continue through out our lives. Relieve that stress as much as possible because it can do a lot of harm to us. Stress is known to be a major factor for poor heart conditions, strokes, and it will lower our immune system, as we grow older.

A regular exercise program is good for all ages and helps relieve stress at the early ages as well. If only families took time out maybe as a family with their children and made it a part of their lives that would help relieve it during the younger years.

A person who learns and enjoys exercising on a daily basis will keep during it, as they grow older as well.

Exercising will help the older person to keep those bones more flexible so they don’t get stiff and weak. The heart gets benefit from exercising too. Exercise will cause the heart to produce naturally, by working it harder to keep it highly flavored. Exercising helps to keep our bodies toned up and helps us to lose weight, or at most keeping the weight maintained.

Remember starting early can help later in years to make your life healthier and more contented.

What needs to be well recognized, however, is the fact that Italy’s inventions were not limited in any way to merely material things. There are many inventions which represent shortcuts of various kinds for the accomplishment of mental processes and in facilities of this kind the practical genius of the Italians has been particularly fruitful. It was they who invented the various processes in arithmetic that have so simplified calculations. It is to them also that we owe as is made clear in the chapters on Mathematics and Astronomy the algebraic solutions of equations of various kinds that had seemed impossible or could be done only by long time taking guess-work before the Italian mind ordered them.

Some idea of Italian practical genius in printing may be obtained from the fact that they invented paragraphing in print as we now have it, introduced pagination, invented capital letters, first arranged punctuation and added all those features which make the modern printed book so much more easy to understand than the old manuscripts or even the first books that were printed. To them too we owe the title page with the information that it now conveys at a glance and many other features that are real discoveries.

Italy has a lot more history to discover on location, and one of best ways to do it is touring with your own private driver-guide.

Italy must yield to Germany’s claim for priority in the invention of printing, but while the Germans invented, no nation did so much as Italy for the diffusion of printing, for the development of the art, it very soon became in their hands and for the encouragement of every detail of fine bookmaking that came with it. Above all Italy was the fruitful mother of inventions that made the printing art of immensely greater value to mankind than it was as it came from the hands of the original German inventors. Henry Louis Bullen, the curator of a museum of typography, said in 1914:

“From 1465 to 1501 thirty-five years printing was established in seventy-three Italian cities. Each printer had to make his own presses and types and cases and other appliances; there were no manufacturers or merchants making or selling these necessaries. Sixteen hundred and eighty (1,680) distinct type-faces have been identified as the product of the Italian printers in that brief period, including the most beautiful Roman and Text types ever used, and the first Italic. Was ever a greater boon in the printing industry? Was ever an art more eagerly adopted? Printers outside of Germany have been influenced more by the early Italian workmanship than by the German. Every printer or typefounder among us is the debtor of the earlier Italian printers, none the less so if unconscious of the obligation and ignorant of the benefactors.”

Father Beccaria was the first to invent a series of electrical instruments that demonstrated how well the energy might be applied. Priestley, the English discoverer of oxygen, in his History of Electricity has praised Beccaria’s ingenuity and has described some of these rather striking instruments. Galvani demonstrated Galvanism and opened up a whole new vista in science. Volta invented the Voltaic pile, the first continuous source of electricity that men ever had and for that reason some times spoken of as a greater invention than the steam engine. In the light of modern developments in electricity in the mechanical world, this expression now seems to have much more truth than when it was originally uttered. Volta also invented the gold leaf electroscope and a number of very ingenious instruments for the demonstration of certain physical phenomena. Nobili invented the thermopile and the thermo-electroscope, while at the end of the nineteenth century the Italian Marconi had the practical inventive genius to bring together a series of discoveries that had been made by others and combine them in such a way as to make wireless telegraphy with its wonders possible.