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Microscopes
Microscopes are used to look at things that are not visible to the naked eye. This category would demonstrate how microscopes work and information about different kinds of microscope.
4,322 Questions
Your whole unicellular body cannot fit under a microscope. IT is impossible to shrink yourself and get under but you can view yourself by getting some of your cells and placing on.
m-i-c -r-o-s-p-o-c-i-c that's how you spell mircoscopocic!!
How did the microscope get its name?
Micro means small or little, and a microscope is used to see small or little objects that can't be seen with the naked eye be visible.
How could a microscope be a good gift?
It could be a good gift if the person that you're giving it to likes to study teeny tiny stuff e.g. micro-organisms. Or if they like collecting them. If they don't like it you should return it and give them the money instead.
What was the advantage of Anton van Leeuwenhoek's microscopes?
Short Answer:
The main advantage of the microscopes developed by Anton van Leeuwenhoek was superior magnification. Because it was a single lens, it was not easy to use and he is said to have employed great patience and possessed high visual acuity.
He could achieve three to ten times the magnification of the best existing microscopes. Over the course of years, he could reliably achieve magnification of 250 times and it is thought that he may have produced lenses with twice that magnification.
More:
Anton van Leeuwenhoek invented a method for making small spherical lenses that much increased the magnification of simple microscopes. He discovered single celled microorganisms and other microscopic structures. He advanced the design of the simple microscope.
The compound microscope was invented 40 years before Anton van Leeuwenhoek was born. He used a simple one lens microscope.
The date is not know precisely, but around 1670, more than half a century after the discovery of the microscope, van Leeuwenhoek discovered a way to make small lenses of very high magnification that went significantly beyond the capability of existing microscopes.
He is considered to be the first microbiologist because of his scientific discoveries made possible by his enhanced microscopes. He was the first person to observe and describe single celled organisms. He was a contemporary of Robert Hook and the two men share some credit for establishing that living things were made of cells.
Beyond the initial discovery of the method for making small spherical lenses, van Leeuwenhoek made over 500 optical lenses (though they did not necessarily become 500 different microscopes) and can be said to have built at least 25 variations on his basic design of the microscope.
What did scientists observe using the earliest microscopes?
Scientists using the earliest microscopes observed tiny organisms such as bacteria and protozoa for the first time. They also discovered that cells were the basic unit of living organisms, leading to the development of cell theory.
What do electrons microscopes use to focus and magnify an image?
Electromagnets focus the electron beam on the specimen. This is a good advantage of electron microscopes over traditional light microscopes where lenses have to be used. Electromagnets can be used as electrons are charged particles and are deflected by magnetic fields.
Objective lenses are the primary lenses in optical instruments, like microscopes and telescopes, that gather and focus light onto a focal point. They help magnify and clarify the image being viewed through the instrument by collecting and refracting light. The quality and power of the objective lens influence the clarity and resolution of the final image.
What on a microscope is used for first focusing?
The coarse adjustment knob is used for first focusing when using a microscope. It is used to move the objective lens closer to or farther away from the specimen to bring it into rough focus.
What was invented first the magnifying glass the eye glass the microscope or the telescope?
The eyeglass was invented first, in the 13th century. The magnifying glass was invented in the 13th century as well. The telescope was invented in the early 17th century, while the microscope was invented in the late 16th century.
What is a lamp on a microscope?
A lamp on a microscope is a light source that provides illumination for the specimen being observed. It is typically positioned under the stage of the microscope to shine light up through the specimen, making it easier to see and analyze. The intensity and angle of the light can be adjusted to optimize visibility.
Are cells discovered using electron microscopes?
Yes, cells can be visualized and discovered using electron microscopes due to their high magnification and resolution capabilities. Electron microscopes can reveal details at the nanometer scale, allowing for the visualization of organelles and structures within cells that may not be visible with light microscopes.
What are the different types of lenses of an optical microscope?
The coarsest classification has the ocular or eyepieceand the objective.
There are many designs for both these components of microscopes.
The objective lens of a microscope is the one at the bottom near the sample. At its simplest it is a very high-powered magnifying glass, with very short focal length. This is brought very close to the specimen being examined so that the light from the specimen comes to a focus inside the microscope tube. The objective itself is usually a cylinder containing one or more lenses that are typically made of glass; its function is to collect light from the sample.
An eyepiece consists of several "lens elements" in a housing, with a "barrel" on one end. The barrel is shaped to fit in a special opening of the instrument to which it is attached. The image can be focused by moving the eyepiece nearer and further from the objective. Most instruments have a focusing mechanism to allow movement of the shaft in which the eyepiece is mounted, without needing to manipulate the eyepiece directly.
See the related links below.
What is the base of the microscope?
The base of a microscope is the bottom part of the instrument that provides stability and support. It usually houses the light source and the mechanical components that control focus and movement of the specimen.
Which two types of microscopes view the surface of an object?
An optical, and an electron microscope.
Advantages of scanning elecctron microscope?
A Scanning Electron Microscope of SEM is a type of electron microscope that images a surface with high-energy electrons. These electrons interact with the atoms in the sample to produce signals that relate to the sample's surface topology and electrical composition. The main advantages of a SEM vs a typical light microscope - are the very large increase in overall resolution, generally hundreds of times great than what is possible with a light microscope. Also the exceptionally deep depth of field that allows one to display an almost 3 dimensional image, that allows one to study the surface structure of the sample.
Cpt code for microscopic epididymal sperm aspiration?
The CPT code is still unlisted as of 2009, the unlisted code used should be 55899. When submitting a claim with this code you will need to make sure to include documentation and the procedure description.
What happens to an image under a microscope if you move it to the right direction?
It is seen in the opposite direction in which you moved it. I did this experiment last Friday.
What is a cover slip microscope?
A cover slip or cover glass is a thin flat piece of transparent material, usually square or rectangular, about 20 mm (4/5 in) wide and a fraction of a millimetre thick, that is placed over objects for viewing with a microscope. The object is usually held between the cover slip and a somewhat thicker microscope slide, which rests on the microscope's stage or slide holder and provides the physical support for the object and slip.
The main function of the cover slip is to keep solid specimens pressed flat, and liquid samples shaped into a flat layer of even thickness. This is necessary because high-resolution microscopes have a very narrow region within which they focus.
The cover glass often has several other functions. It holds the specimen in place (either by the weight of the cover slip or, in the case of a wet mount, by surface tension) and protects the specimen from dust and accidental contact. It protects the microscope's objective lens from contacting the specimen and vice-versa; in oil immersion microscopy or water immersion microscopy the cover slip prevents contact between the immersion liquid and the specimen. The cover slip can be glued to the slide so as to seal off the specimen, retarding dehydration and oxidation of the specimen. Microbial and cell cultures can be grown directly on the cover slip before it is placed on the slide, and specimens may be permanently mounted on the slip instead of on the slide.
What did Anton Van Leeuwenhoek first look at with the microscope?
Anton van Leeuwenhoek, at age 16, first saw cloth through a microscope.
He was an apprentice to a merchant who sold cloth and the merchants used microscopes to inspect the threading and weave.
Six years later, he acquired a shop of his own and, of course, a microscope of his own for the purpose of looking at cloth. At some point, his interests went beyond his business and he learned to polish glass and make his own lenses. About 1670 he discovered a way to make very small spherical lenses. This allowed much greater magnification, up to 250 times. (Some people think that he evnetually made lenses with magnifications almost twice that.)
After discovering the technique (which he kept secret) he saw many fantastic things, including microorganisms in water.
The first thing he officially described in a letter to the Royal Society of London were his observations and drawings of the parts of a bee.
Later, he described microorganisms in water.
How did the microscope change the world?
They taught humans more then they could see, it saves people's lives. for example: Magnifying a leaf to see if it has poison.
I love Armando!!
Are you referring to Robert Hooke?If you are,then he discovered the cell as the smallest singular unit of life.
