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Learn The Parts Of A Microscope

When looking to invest in a future career of scientific microscopy and biological research, the perfect starting point is the basic compound microscope also known as the optical microscope or more modern stereoscope and digital microscope.

Microscopes are the most common piece of lab equipment for any science student, business or research company. Even though there are many microscope types, they basically serve a similar function - magnification of the object being studied.

You will find a range of scientific equipment, in particular, our quality compound microscopes and stereoscopes (or stereo/stereoscopic microscopes) right here to suit your specific needs. From the basic "home scientist microscope" models to the more advanced lab-specific type microscopes for biology and mastering physics.

Optical Microscopes : : From The Light Microscope To The Modern Digital Microscope

With recent developments and a move from optical microscope to the more modern USB microscopes, they are becoming more affordable with higher magnification while less cumbersom and more powerful to perform the most advanced testing, checking, comparisons or other optical microscopes, even a microscope that uses laser illumination, biological and general science related research you could ever need. Digital microscopes such as the Dino Lite Microscope range offer a huge range of new possible uses giving new life to what was once just the humble optical microscope.

To compliment our range of compound microscopes online and optical microscope accessories for sale, we have included a number of biology related topics, childrens biology kits, and other biology products. To the left you will find a wealth of information on the optical microscope plus everything from biology books to instructional biology videos and even biology software to assist in your science education.

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Our Current Price Reduced Sale Items At Microscope Science

What Is Microscopy

Microscopy is the technical field of using microscopes to view objects and areas of objects that cannot be seen with the naked eye (objects that are not within the resolution range of the normal eye). There are three well-known branches of microscopy: optical, electron, and scanning probe microscopy.

Optical and electron microscopy involve the diffraction, reflection, or refraction of electromagnetic radiation/electron beams interacting with the specimen, and the collection of the scattered radiation or another signal in order to create an image.

This process may be carried out by wide-field irradiation of the sample (for example standard light microscopy and transmission electron microscopy) or by scanning of a fine beam over the sample (for example confocal laser scanning microscopy and scanning electron microscopy).

Scanning probe microscopy involves the interaction of a scanning probe with the surface of the object of interest. The development of microscopy revolutionized biology, gave rise to the field of histology and so remains an essential technique in the life and physical sciences.

The first detailed account of the interior construction of living tissue based on the use of a microscope did not appear until 1644, in Giambattista Odiernas Locchio della mosca, or The Fly's Eye.

It was not until the 1660s and 1670s that the microscope was used extensively for research in Italy, the Netherlands and England. Marcelo Malpighi in Italy began the analysis of biological structures beginning with the lungs. Robert Hookes Micrographia had a huge impact, largely because of its impressive illustrations.

The greatest contribution came from Antonie van Leeuwenhoek who achieved up to 300 times magnification. He sandwiched a very small glass ball lens between the holes in two metal plates riveted together and with an adjustable by screws needle attached to mount the specimen.

Then, Van Leeuwenhoek discovered red blood cells and spermatozoa and helped popularise microscopy as a technique. On 9 October 1676, he reported the discovery of micro-organisms.

The performance of light microscopy depends as much on how the sample is illuminated as on how it is observed. Early instruments were limited until this principle was fully appreciated and developed, and until electric lamps were available as light sources. The first piece of fiction to involve the microcosm was probably Fitz-James O'Briens "The Diamond Lens," which tells the story of a scientist who invents a powerful microscope and discovers a beautiful woman living in a microscopic world inside a drop of water.

In 1893 August Kohler developed a key principle of sample illumination, Kohler illumination, which is central to achieving the theoretical limits of light microscopy. This method of sample illumination produces even lighting and overcomes the limited contrast and resolution imposed by early techniques of sample illumination.

Further developments in sample illumination came from the discovery of phase contrast by Frits Zernike in 1953, and differential interference contrast illumination by Georges Nomarski in 1955; both of which allow imaging of unstained, transparent samples.

This Weeks Best Sellers At Microscope Science

Compound Microscope :: Digital Microscope :: Stereoscope :: Light Microscope :: Science Biology

The best part about such a topic as biology is that you can start as a child with the very affordable childrens microscopes allowing the interest to develop along with learning to use microscope slides and microscope cover slips along the way.

Wanting to know where to buy your science equipment?

We stock cheap microscopes for students through to university student microscopes and professional industrial microscopes. These just might be the people who when grown up could find a cure for such diseases as mesothelioma or further research how cord blood is benefitting the medical industry. We stock the best microscope brands so when you are ready to buy a microscope direct - you can be assured you are in the right place.


Stem cell research

christopher reeve stem cell research

Science as a Human Endeavour

Christopher Reeve, the star of the film Superman (1978), was paralysed when he fell from a horse in 1995. He was confined to a wheelchair, and until his death in 2004 he lobbied politicians to approve stem cell research to find a cure for people with spinal cord injuries. But what are stem cells?

Stem cells are unspecialised cells that can develop into any one of over 200 different types of cells in the body. They can also divide and make accurate copies of themselves. Scientists see the possibility of using these stem cells to treat some diseases and to replace damaged tissue.

Where do scientists get stem cells? They can be found in bone marrow, but unfortunately these stem cells have already started to become the cells they will replace. However, stem cells in human embryos (3-5 days old) have not yet started to develop, so they are much better to use.

So far scientists have used donated embryos remaining after IVF procedures. However, the problem is whether it is ethically correct to use these human embryos.

With any scientific development there will always be people who are for it and people against it. Religious groups and right-to-life groups are against the use of embryonic stem cells because they believe that even though they are unborn, the embryos have the right to life.

There is also a fear that the use of stem cells could lead to humans being grown in the laboratory. On the positive side, the potential medical benefits of stem cell research are enormous, as listed in the table above.

As Christopher Reeve once asked, Is it more ethical for a woman to donate unused emoryos that will never become human beings, or to let them be tossed away as garbage when they could help save thousands of lives?

The ethical corner discussion
  1. Consider a discussion. Put the following signs in the four corners of the room: 'agree', 'disagree', 'unsure but I think I agree' and 'unsure but I think I disagree'.

  2. Do you think leftover human embryos should be used for stem cell research? Move to the corner that applies to you.

  3. People in each corner now try to convince the people in the two unsure corners to join them.

Everyone should be given a chance to contribute to the discussion.


The Best Value Microscope Brands

American Educational :: Heathrow Scientific :: Omano :: Carolina Biological Supply Company

Later when you work out what type of microscope you need for your next step in your biology studdies, you may then move onto the more advance dissecting microscope styles for sale here at discount Microscope Science online.

The Konus Diamond stereoscopical binocular microscope is a great medium range stereoscope while the Mitutoyo toolmakers microscope is a high precision, high end model for industry use.

All orders are securely processed via the worlds largest online retailer - Amazon!

Veho :: ViTiny :: Celestron :: AmScope :: OMAX :: Mitutoyo :: Swift Optical :: Konus :: Aven

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