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The first microscopes were simple and had low magnification power, while modern classroom microscopes have higher magnification and clarity due to technological advancements like better lenses and lighting. Additionally, modern microscopes often have additional features like digital imaging capabilities and advanced focusing mechanisms for better viewing.
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What is the difference between cheek cells seen under the microscope and those illustrated in text books?
Cheek cells seen under the microscope may appear less defined and organized compared to those illustrated in textbooks. This is because textbook illustrations often depict idealized versions of cells for educational purposes, while actual cheek cells may vary in shape, size, and arrangement. Additionally, factors like staining techniques and magnification levels can affect the appearance of cheek cells under the microscope.
Was Robert Hooke the first person to look at a cell under a microscope?
Yes, Robert Hooke was the first person to observe cells under a microscope in 1665. He coined the term "cell" after observing the compartments of a cork sample, which reminded him of cells in a monastery.
How has the microscope increaesd your understanding of the diversity of life on earth?
Microscopes have increased our understanding of life on earth because they have helped us find different cells, bacteria, etc, and find out how those different cells work; by doing so we can now know more things about a certain type of organism, and be able to study about them further.
Why inexperienced biolohist often have difficulties using a microscope to follow tiny organisims as they move about in a drop of pond water in a microscope slide?
Well, isn't that just a happy little challenge for our budding biologist friends? It's quite common for beginners to have a tough time tracking those tiny organisms in a drop of pond water. But with patience and practice, they'll soon learn to adjust the focus and lighting just right to follow those little critters as they dance around. Just like painting, it takes time and a gentle touch to master the art of microscopy.
Who uses the microscope?
The first record of the use of lenses to manipulate images was in Greek and Roman writings of around 1000 A.D. As for the origins of someone using lenses to magnify a minute object, it is unclear. Most scientific instruments have a clear place in the historical records when they were formed and who created them, not the microscope though. The definition of the microscope makes it difficult to determine when it was first created. Since there were lenses dating back to ancient societies, how do we say when those lenses were used to look at minute objects? It is practically impossible to say when a single lens was used in that fashion. Credit for the first compound microscope (multiple lenses) is generally given to Zacharias Jansen and John Lippershey of the Netherlands, in 1590. It is likely that the microscope was a result of work made on the telescope. The telescope had much more practical uses in that time, because it could be used for maritime navigation.This idea is supported by the account of one of the first compound microscopes, which was six feet long and had a one inch barrel with a lens at either end. After the compound microscope the next major development was in lenses. Half a century after the compound microscope, both Anthony van Leeuwenhoek and Robert Hooke realized that lenses with very short focal lengths was the key to more magnification. This meant the use of extremely double convex or spherical lenses. They also used lenses made of pure quartz, creating a more pure glass instead of the poor quality, greenish glass of the day. The problem of making lenses in this fashion was that it created chromatic aberration. This aberration is because different wavelengths of light are refracted different amounts, resulting in a smeared image instead of a clear one. In 1758 John Dollard patented an achromatic lens. Even with this new lens, it was not until 1930 when Lister was able to use it to alleviate the problem of chromatic aberration. Much of the interim time was spent on telescope technology. Another form of the microscope, first proposed by Isaac newton in 1692, is the reflecting microscope. In this case the light would not pass through a lens, but would reflect off of a concave mirror. Since all light is reflected the same, there would be no problem with chromatic aberration. The first reflecting microscope was made by Barker in 1736. This model was developed directly from reflecting telescope designs. Reflecting microscopes are used today, but the transmission type are much more prevalent.
How is a simple microscope and a compound microscope different?
The difference lies in the number of lenses that each microscope has. A compound microscope has 2 or more lenses, like those found in most science classrooms. A simple microscope uses only 1 lens.
Examples of shields for classrooms?
blue cross, red cross all of those!
When was the first micrscope invented?
There were several developments of the microscope before it was used for research and scientific reasons. It was first used for those reasons somewhere around the 1660s and 1670s in Italy
Why do classrooms need airconditioning?
Classrooms technically don't NEED air conditioning if they have windows you can use those. Most schools and teachers prefer to have air conditioners especially in middle school classrooms when everyone is hitting puberty and starts to let off smells because having too many students, especially if they have not started using deodorant yet will cause the room to smell and no one would want to be in those classes with those students. Another reason why they prefer to have air conditioners is so it doesn't get too hot in classrooms causing the students to dehydrate and pass out
What is the difference between cheek cells seen under the microscope and those illustrated in text books?
Cheek cells seen under the microscope may appear less defined and organized compared to those illustrated in textbooks. This is because textbook illustrations often depict idealized versions of cells for educational purposes, while actual cheek cells may vary in shape, size, and arrangement. Additionally, factors like staining techniques and magnification levels can affect the appearance of cheek cells under the microscope.
What are those things that scientists use to see germs?
A microscope, perhaps?
Was Robert Hooke the first person to look at a cell under a microscope?
Yes, Robert Hooke was the first person to observe cells under a microscope in 1665. He coined the term "cell" after observing the compartments of a cork sample, which reminded him of cells in a monastery.
What does stage and stage clip do?
The stage is the part of the microscope where specimens are placed, and a stage clip is what holds the specimen slides in place. You would move those to look at different parts of your specimens.
Could you jumble the letters Riocmrpocse?
Those letters spell MICROSCOPE + R.
To see objects smaller that those that can be resolved by a light microscope. You usually use microscope's that employ a beam of?
You can use an electron microscope to view objects smaller than light photons, which uses electrons as the name suggests
What did leeuwenhoek do?
Anthony Van Leeuwenhoek was the first to observe microorganisms using his self made microscope. He discovered bacteria such as those in form of plaque B/W the teeth and many those which live in the pond --another wiki.answers question
Which microscope has better resolution?
The electron microscope because Electron microscopes can obtain pictures of extremely small objects-- much smaller than those that can be seen with light microscopes.
