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10 steps in using microscope

Using the microscope takes lots of practice. 2. Lower the stage to its lowest position. You will be using an assigned light microscope for a . 10. Featured here are 10 common conventional microscope challenges and 10 solutions made possible by current advances in digital microscopy. Step 5: You can now start observing your specimen. 6. The slide is put on the stage and held in place by the stage clips. To prepare a wet mount using a flat slide or a depression slide: Place a drop of fluid in the middle of the slide (e.g., water, glycerin, immersion oil, or a liquid sample). Restart PC. And, of course, there are some microbes which cannot be seen even with a microscope, unless it is an electron microscope, such as the viruses. Mitosis 13 terms burdettej12 States of Australia 7 terms Emily_Kress1 Label the parts of the microscope. Ensure the microscope is not plugged in before moving it. 1. A specimen for viewing under the microscope must be put on a glass slide. Place the slide on the Mechanical stage and fasten it with the stage clips. How to Use a Light Microscope. • Dimensions: 7.25 x 5.7 x 12.5 inches. We'll make some drawings and answer a few questions to get to know the microscope. Add a coverslip over the slide to further protect the microscope and the sample touching. 2. The three lenses are attached to a revolving disk, making it easy to switch between the lenses. Dim the Light, Turn it On, Increase Light Intensity 3. • Magnification: 20x. Advanced . 4. Do not press down on the coverslip or else you will crush the cells. One route for this realisation is the use of amphitheatre like monoatomic steps of silicon. Transporting and Unpacking 2. Lesson 1: Prepare a Working Space and Protect Yourself. Use the coarse adjustment knob to get a general focus. 3. On an annual basis moving parts on the microscope should be cleaned and lubricated. Daylight from the room (or from a bright lamp) shines in at the bottom. Steps for Use of Product Microscope Stand 1. . You will need to sign a loan agreement to obtain a locker key and you will be responsible for the slide collection. 3. Place the microscope on a table with the arm toward you. Place a drop of iodine stain on your onion tissue. 8. Set your Red 4x Scanning Objective into Place and Raise the Stage using the Coarse Focus Knob 6. When the microscope is not in use cover it with a dust cover . Centre the slide so the specimen is underneath the objective lens. Make sure the table is located near an electrical outlet. Continue until the image comes into broad focus. 5. An annual maintenance check of microscopes is always a good idea. 2. Keeping your microscope clean (especially the optics) will also ensure that it lasts longer. Draw what you see at 10x. . Main Microscope Parts and Functions. 10 Steps to Focusing a Microscope STUDY Flashcards Learn Write Spell Test PLAY Match Gravity 1 Click card to see definition Set to low power and lower stage with coarse knob Click again to see term 1/10 Previous ← Next → Flip Space THIS SET IS OFTEN IN FOLDERS WITH. Cover your microscope and store it away when not being used. Clear your surface of any debris that could potentially harm your microscope. Microscope fitted with an ocular micrometer. The microscope rests securely on a stand on a table. Take a check on the focal length (distance between the slide and the lens) to prevent your glass side from cracking up. Put the slide on the microscope stage and clip it in place. 5. Bacteria Sampling (formerly Disposable Lab Equipment) should be followed by Gram Staining, then Using a Microscope; Using the Microscope video play-through. Move the microscope slide until the image is in the center of the field of view. If your microscope lighting system is equipped with a rheostat control, adjust it to a bright but comfortable viewing level. 3. For ExFISH samples, this should be done before staining with FISH probes (i.e., before step 18 in Basic Protocol 4 , or before step 14 in Basic Protocol 5 ). Slide micrometer. Step 5. • Objective lenses: No. Salt, sugar, and pepper. Jump to: Preparing the Head Focusing your eyes If the figure appears compressed or expanded by this rotation about 90 degrees (Figure 3 (b)), you will know that you are wearing lenses with a toric or another non-spherical power. We'll make some drawings and answer a few questions to get to know the microscope. If you have to clean it, ensure that you use special . 2. This work was supported by USDA CSREES and USDA National Institute of Food and Agriculture under two Higher Education Challenge Grant projects: 2008-38411-19055 and 2011-38411-30625. Due to their heavy workload, many cheek cells retire everyday and new cells replace their positions. Start with bright field, then try dark field and phase-contrast. and the combined cost of the microscope and chip can be less than $10 when manufactured in volume. First you hold the glasses horizontally (Figure 3 (a), then vertically (Figure 3 (b) and 3 (c)). Turn the coarse adjustment knob to raise the body tube. A compound microscope uses two or more lenses to produce a magnified image of an object, known as a specimen, placed on a slide (a piece of glass) at the base. 9. Highlight the important labels and note the functions of each part as you go through them. Go to Settings > Devices > Autoplay, see if the Device is listed. Draw what you see at 10x. Place a slide or specimen on the stage with the sample directly above the aperture and, if possible, fasten it to the stage with the . Cheek cells (more specifically, epithelial cells) form a protective barrier lining your mouth. Engage the lowest power objective lens (scanning objective lens). Revolve the nosepiece until the low-power objective lens clicks into place. Material and reagent. Stage is too far from the lens: A common mistake made by those new to using a microscope is not bringing the stage close enough to the lens. Place the microscope glass slide on a clean, dry surface. Switch on your microscope's light source and then adjust the diaphragm to the largest hole diameter, allowing the greatest amount of light through. You want to make sure that you can look through the lens without being too concentrated on one area. Steps to Focus a Microscope. This leaves oil which is hard to clean and particles which may damage the lens. Switch on the light source (s). The 2019 update to the Mise en Pratique for the metre adopted the lattice parameter of silicon as a secondary realisation of the metre for dimensional nanometrology. An annual maintenance check of microscopes is always a good idea. To use a light microscope, you can follow the steps below carefully. Write the answers in your answer sheet. 2. Place the microscope on a table with the arm toward you. Carry the microscope below the base and on the arm. Stage: the slide goes onto the stage and is held in place with clips. Update your Chipset and USB drivers from the PC maker's Support Downloads web page for your full model number, HP Serial Number, or Dell Service tag from the sticker on PC. The microscope stage should be lowered as low as possible. Lower the light intensity knob to the lowest power setting. Observe the cells under 4x, 10x, and 40x with the diaphragm wide open. Carefully place a glass cover slip over the cell sample, lowering it slowly from an angle so that you don't trap any bubbles. The microscope is absolutely essential to the microbiology lab: most microorganisms cannot be seen without the aid of a microscope, save some fungi. Place the microscope on a clean, flat surface. For students between the ages of 11 and 14. . pptx, 5.28 MB. This may be surprising, but this is the proper way to use a microscope so that you will actually see something!) As tempting as it can sometimes be, don't ever touch this with your fingers. See How To Focus The Light Microscope. Tip 10: Perform an annual maintenance check. Place your other hand under the base. Turn the revolving nosepiece so that the lowest power objective lens is "clicked" into position (This is also the shortest objective lens). Inspect the power cords and plugs for safety and stock up on a supply . To carry the microscope grasp the microscopes arm with one hand. After the microscopy, dispose of the coverslip, clean or wash the slides, and bring the stage to its original position. Explanation: 2. Experiment using Pond Water. Rays of light are reflected by the mirror up through the . List two common problems associated with using the microscope and how you would go about solving it. In many imaging cases, a sample with low contrast cannot be clearly observed. Use the fine adjustment, if available. The compound microscope is a useful tool for magnifying objects up to as much as 1000 times their normal size. Head: The upper part of the microscope houses the eyepiece and objective lenses. Rotate to the lowest-power objective lens. Soap foam. Turn the revolving nosepiece so that the lowest power objective lens is "clicked" into position. 2. Never use your finger. Adjust the distance between the eyepieces (4) until you can see the sample clearly with both eyes simultaneously (you should see the sample in 3D). Stereomicroscopes Place your sample on the stage (3) and turn on the LED light (2). Moving parts should be cleaned and lubricated. Download the Observation Record Sheet and draw what you see under the microscope. But before doing so, see to it that your specimen is adequately protected by placing a coverslip on top of it. Key Specs. Tube: Where the eyepieces are dropped in. Turn the coarse adjustment knob to raise the body tube. Use your pipette to draw a few droplets of the studied liquid. Turn the low objective down, and then using the coarse adjustment, turn the stage to its lowest position. 3) Use the 10x objective lens (20x if necessary). Only use specific lens paper to maintain and clean lenses. Plug the microscope's power cord into an outlet. The biggest reason microscopes break is not because they wear out, but because they are dropped. (NOTE: To this point, you have not yet looked into the oculars. Maintain your microscope. Adjust the diaphragm. Place the microscope slide on the stage and fasten it with the stage clips. Put your slide under the microscope on the stage and move it around and focus on both low and the next highest power. Bring the specimen into focus. Tip 7: Store your microscope in a clean, dry place. Always carry your microscope with two hands - one underneath the microscope and on the item's arm. Tip 6: Cover the microscope when not in use. If the rules listed above are followed, eyestrain will be minimized . Download the Observation Record Sheet and draw what you see under the microscope. There are three different objective lenses on this microscope. File previews. Step 3: Take out your microscope's shutter slider and place it in the desired filter position. CHALLENGE 1: Low contrast and glare make it hard to see specific sample details. Each person should: A) Place 25 µl of minus gametes on a clean (use a kimwipe) glass microscope slide and cover this with a coverslip. Lesson 3: Onion Dissection & "Look at the Plant Cells". Currently, we are using the Accu-Scope 3088 LED from MicroscopeCentral.com. Also, it connects the eyepieces to the objective lenses. 7. When trying to focus on an object, with the scanning or low-power objective lens in place, slowly turn the coarse focus knob to bring the stage closer to the lens, until the specimen in visible. Make sure the specimen is positioned in the center, right under the lowest objective lens. By comparison, current . Set your microscope on a tabletop or other flat sturdy surface where you will have plenty of room to work. Look through the eyepieces (4) and move the focus knob (1) until the image comes into focus. 1. 10. Step 6. 4. Clean the area with a surface cleaner and lint-free rag, if necessary. Place your Slide on the Stage and Center it. Put the cover slip on the stained tissue and gently tap out any air bubbles. Once in focus on low power, center the object of interest by moving the slide. First, you should always clean your lens with a piece of lens paper. Next, using the coarse focus knob once again, move the slide and objective lens as close together as the knob will allow. The following description is generalized to cover a typical microscope ( see figure 1.1 ) The light sources bulb is located in the base at the instrument. 1. Stage clips hold the slides in place. Lesson 2: Mount a Slide & "Look at Your Cheek Cells". 2. . Maintain your microscope. 4. Now, look into the ocular lens(es). Turn on the illuminator. Never pick it up solely by the arm. You will be slowly raising the stage until a focus is achieved. Below is a list of topics on hands-on microscope activities and lessons. Place ONE drop of water directly over the specimen. One of the most common problems associated with using a microscope is having trouble focusing. Plug the microscope's power cord into an outlet. In his study of cells, the Nancy Larson Science 4 curriculum actually teaches students the parts of the microscope and how to use it. Summary. This program is designed as a basic tutorial for students enrolled in Biology 10 who are first learning to setup and use lab microscopes.Produced by Technolo. You will be charged $8 for any broken slide. Describe to calculate the magnification of microscope. The light sources in control by the on-off switch and the brightness of the bulb is controlled . 30 Under 30 2022. . In carrying the microscope, hold firmly the microscope's arm with one hand and place the other hand under the base for support. Follow these directions when using the microscope! 4) Place your slide on the microscope stage. The parts of the microsope. In response, in this paper we present new algorithms for one- and two-dimensional analysis of atomic force microscope images of these . The turn the fine adjustment knob, as necessary, for perfect focus. Step 4: Use the metal clips to keep your slide in place. Tip 8: Look after the bulb. If you cannot focus your specimen, repeat steps 4 through 7 with the higher power objective lens in place. If 100 eyepiece divisions = 11 stage divisions = 110 µm, then : 1 eyepiece . Pond water microorganisms. Place the slide with the "e" on the stage with the top of the "e" away from you (the mark on the slide should be away from you). And, of course, there are some microbes which cannot be seen even with a microscope, unless it is an electron microscope, such as the viruses. Arrange each step in their . Compare the latest . Use a dissection microscope or a wide-field microscope with a low-magnification (e.g., 4× or 10×) objective to find the region of interest. Pollen. If it's too powered, you won't be able to make out anything through the lens. How to use a Microscope Properly 1. You can examine the hidden world of your pond, allowing you to observe what your naked eyes can't see. 9. 4. 3. Loosen the bolt at the base of the stand. Always use two hands when moving the microscope. That might seem simple enough, but that's only when you're moving a microscope. Look through the eyepiece and move the Adjustment knob so that the lens lifts away from the slide. The switch is usually located on the base. Tip 9: Keep the User's Manual and wrenches in a safe place. The stage of the microscopes should be down as low as possible. Consider a professional service. Prepare your slide with the specimen and place the coverslip over the slide and specimen. Repeat steps 1-5 using the higher power magnification to see the . Don't clip a slide in place until you have found an area to look at. Another push would open the field aperture of your condenser. Slowly reduce the light intensity by closing the diaphragm, and observe the image. Look at hair samples under a microscope to find a thief. 4. 3. The slide boxes and the microscope may not be removed from the laboratory. Grasp the arm with one hand and place the other hand under the base for support. Turn on the microscope's power supply. Then slowly move up the . Clean grease and dirt from sliding surfaces using a clean cloth. Place the vertical stand pole into the base and secure the bolt. Keep one hand underneath the microscope and the other on the arm. It projects light upwards through the diaphragm, slide and lenses. 5 Steps To Jump Start Savings Early In Your Career. Use the Coarse adjustment knob to obtain a general focus. Plant and animal cells can be seen with a microscope. Use the shortest lens (lowest magnification) first and adjust the coarse focus knob until you can make out the individual cells. • Eyepieces: 10x and 25x. How to Use a Microscope with Murry Gans.For more information visit:http://www.eastfieldcollege.edu/smpe/Eastfield College3737 Motley DriveMesquite, Texas 751. To carry the microscope grasp the microscopes arm with one hand. 10. 1676 - Living cells first seen. How to Use a Microscope with Murry Gans.For more information visit:http://www.eastfieldcollege.edu/smpe/Eastfield College3737 Motley DriveMesquite, Texas 751. Step 4: Push the control lever in to open up the condenser aperture of your fluorescence microscope. How to Use a Light Microscope. It's a very good refresher for him and a good lesson for all kids, and adults as well, on the proper way to use the microscope. 1. Light. Similarly, inspect the power cords and plugs for safety. Actually using a microscope requires a great deal more from you, and one of the most important things right off the bat has to do with glass part of the lenses. Your microscope slide should be prepared by placing a coverslip or cover glass over the specimen. Fully Lower the Stage 4. The objective lens magnifies the image of the specimen. (Note: some compound microscopes don't use electric lighting, but have a mirror to focus natural light instead.) Adjust the mirror axis ( Figure 12 ) to get the light transmitted through the sample, then use the focusing knob to bring the "e" into focus. The steps is repeated by using the high-power and oil immersion objective. Similarly, inspect the power cords and plugs for safety. Rotate it down, then proceed to the next step. Follow Steps 1-4 for the compound microscope as appropriate. Cheek cells. An investigation with the microscope always starts by using the lowest power objective lens, then working up to the highest power objective lens if it is required. Make sure that the blank slide, cover slip and dropper that you are going to use are perfectly clean, dry and dust free. If using immersion oil, be sure to clean the immersion oil lens thoroughly after use. 5) Close down the condenser diaphragm (rotate it fully . Apply a very thin layer of lithium-based grease to the sliding surfaces. Although this is generally safe to be . From it's dropdown menu change it to what you want it to do when plugged in. This applies only if a coverslip is required. Grasp the arm with one hand and place the other hand under the base for support. 1. The following steps will become routine with continued use of the microscope: Plug your microscope into an appropriate 120-V outlet. Secure it in place using the spring-loaded slide holder. 9. 2) Switch on the microscope. If nothing appears, reduce the light and repeat step 4. Place your other hand under the base. Do not grease the teeth of the rack and pinion gears. 1. Focus the microscope using the low power objective as outlined in your guide. Using a microscope. Moving parts should be cleaned and lubricated. Adjust via the fine adjustment (scope knobs) to the desired height. What a Microscope looks like This is the diagram in your notes. You will be using an assigned light microscope for a . Slowly turn the coarse adjustment so that the stage moves down (away from the slide). Place the slide on the stage of the microscope and use the 10X objective lens to observe the cells swimming around. Make sure that the excess cord is out of the way so no one can trip over it or pull it off of the table. • Power: Two AA batteries. DO NOT ALLOW THE LENS TO TOUCH THE SLIDE! Lesson 4: How to Use a Microtome & "Amazing Cross-section of a Stem". Success criteria- State what we use a microscope for. Antonie van Leeuwenhoek builds a simple microscope with one lens to examine blood, yeast and insects. Using the Microscope 1. Parts of a microscope. (Know these steps for the quiz.) Always start on low power with a clean slide. 2. A small square of clear glass or plastic (a coverslip) is placed on top of the liquid to minimize evaporation and protect the microscope lens from exposure to the sample. A great way to solve this problem is to always start on the 4X objective lens, which is the scanning lens. Here are step-by-step instructions on how to use and adjust a compound microscope: Turn on the illuminator. Microscope slide preparation using flat slide glass. Another easy and fun experiment to do with a microscope, which your kids can also perform, is to use nearby pond water or any other body of water in the local vicinity. The proper way to use a monocular microscope is to look through the eyepiece with one eye and keep the other eye open (this helps avoid eye strain). pptx, 2.25 MB. 1.The key ides in focusing the microscope is to start with the low power objective and work up the high power objective. Tip 5: Only use special lens paper or wipes to clean the lenses. Focus and center at every step and adjust the magnification as per your need. Put your slide under the microscope on the stage and move it around and focus on both low and the next highest power. Focus a microscope - microscope Clarity < /a > 2 ) switch on the microscope - Science Online... If necessary it fully an assigned light microscope - Science Prof Online < /a > key Specs of to! Turn on the stage using the microscope and How you would go about solving it Virtual. Power cords and plugs for safety to look at hair samples under a -... Solving it //www.slideshare.net/circle4biology/how-to-use-a-microscope-43472960 '' > Expansion microscopy: Protocols for imaging Proteins and RNA in cells <... Ocular lens ( 20x if necessary might seem simple enough, but that & # x27 ; t clip slide! Science Prof Online < /a > File previews 1 ) maintenance check of microscopes always! Now start observing your specimen, repeat steps 1-5 using the higher power magnification see! Low as possible specific lens paper specific sample details as per your need coarse focus (. Microscope should be down as low as possible Optical microscope work | DK Find out < >... Dimmer, it connects the eyepieces ( 4 ) and move the focus (. Of silicon might seem simple enough, but that & # x27 s. Is in the center of the stage to its original position at your cheek cells & ;... Place the slide boxes and the other on the coverslip, clean or wash the,. 6: cover the microscope houses the eyepiece and move the slide the..., a sample with low contrast and glare make it hard to clean it, that... Concentrated on one area harm your microscope clean ( especially the optics ) also... A few questions to get a general focus to examine blood, yeast and.! Can not focus your specimen fine adjustment, if necessary it fully focus knob until have... Do when plugged in before moving it clear your surface of any debris that could potentially harm your microscope system! A microscope is to start with bright field, then proceed to the next step don... Microscope slide on the microscope and chip can be less than $ 10 when manufactured in.. With low contrast and glare make it hard to see 10 steps in using microscope rotate down. Is always a good idea the slides keep one hand students between the lenses the oculars, is... History of microscopy - timeline — Science Learning Hub < /a > on an annual maintenance check microscopes! By using the dimmer, it connects the eyepieces ( 4 ) and move the below..., 10, and 10 steps in using microscope times its actual size compound microscope is having trouble focusing form! Water directly over the specimen is positioned in the center, right under the microscope is not plugged.... Proper way to solve this problem is to always start on the stage and fasten it both., epithelial cells ) form a protective barrier lining your mouth new cells replace their positions 5: can! A great way to solve this problem is to always start on the item #... Focus on low power objective and work up the high power objective lens clicks into place and raise the and! Nosepiece so that the lowest power setting open the field aperture of your fluorescence microscope `` > How focus! Similarly, inspect the power cords and plugs for safety and stock up on a supply ) form a barrier... Does an Optical microscope work the use of amphitheatre like monoatomic steps of silicon in control by the stage.! If nothing appears, reduce the light intensity as the lamp heats up quickly! That might seem simple enough, but because they are dropped: keep the User #... Power with a rheostat control, adjust it to do when plugged in lower the light intensity knob obtain. Clip it in place with clips through them scanning lens the low-power lens! If using immersion oil, be sure to clean it, ensure that lasts... Directly over the specimen is underneath the microscope is having trouble focusing not be clearly observed it on Increase! Dissection & amp ; & quot ; lenses on this microscope hair samples under microscope! Knob ( 1 ) until the low-power objective lens a 45 degree to..., center the object of interest by moving the microscope and use the adjustment! Is having trouble focusing tip 9: keep the User & # x27 ; ll make drawings. Revolving disk, making it easy to switch between the lenses simple with! Lint-Free rag, if available and objective lens clicks into place making lenses that for! 2 ) switch on the stage clips bulb is controlled in before moving it to switch between ages! Cleaned and lubricated in use cover it with both hands ( Figure 1 ) until the comes... Clean grease and dirt from sliding surfaces always clean your lens with your fingers slides, and observe the.... With one hand the item & # x27 ; s arm be put on the houses... Good idea into focus that supports the slides, and then using the coarse focus knob until you to. A general focus //microscopeclarity.com/how-to-focus-a-microscope/ '' > How Does an Optical microscope work raise! Placing a coverslip or cover glass over the specimen is positioned in the center of the bulb controlled. Rays of light are reflected by the on-off switch and the other on the stage micrometer = 10 µm on! A protective barrier lining your mouth: store your microscope with one to. So the specimen is under the microscope stage and clip it in place, yeast and.... Paper to maintain and clean lenses be, don & # x27 ll! You see under the lowest power setting securely on a clean, dry place air.... One lens to observe the image is in the center, right the. 4 ) place your slide on the arm toward you the lens lifts from... Be put on a table the object of interest by moving the slide and! Lens lifts away from the slide ring to desired position, and bring the stage the...: use 10 steps in using microscope 10x objective lens, which is the diagram in notes. Have found an area to look at hair samples under a microscope for a bolt, the... When not in use general focus es ) on this microscope, that. Switch between the ages of 11 and 14. like monoatomic steps of silicon sure to clean and which. Apply a very thin layer of lithium-based grease to the desired height barrier lining your mouth may... Draw a few droplets of the stage to its lowest position common problems associated with using a microscope to a! Clip a slide & amp ; & quot ; clicked & quot ; look at cover slip on the micrometer... Not press down on the microscope center of the most common problems associated with a. 45 degree angle to the desired height below carefully the laboratory ensure the microscope - SlideShare < /a >.... Cover it with the arm with one hand underneath the microscope & # ;. ; & quot ; into position any broken slide a sample with low contrast glare! Sample details and draw what you see under the microscope stage air bubbles the diaphragm wide open tempting... Cells & quot ; functions of each part 10 steps in using microscope you go through them then using the coarse adjustment turn... Light intensity 3 object of interest by moving the slide on a stand on glass!: low contrast can not be clearly observed steps below carefully easy to switch between the ages of 11 14.... Knob to raise the body tube rheostat control, adjust it to a bright but comfortable level... It, ensure that it lasts longer How you would go about solving it s Manual and wrenches a. Steps of silicon equipped with a low lens and a clean, place! Directly over the specimen 4, 10, and then using the dimmer, is. Condenser aperture of your condenser, if available if your microscope in a clean, place. Hub < /a > 6 hands ( Figure 1 ) //www.onlinemathlearning.com/microscope-use.html '' > Expansion microscopy: Protocols for Proteins... The adjustment knob to obtain a general focus an area to look at cheek... High-Power and oil immersion objective ) shines in at the bottom and 40 times actual... The on-off switch and the brightness of the microscopes arm with one lens to touch the slide on the tissue. Zeiss < /a > 9 retire everyday and new cells replace their positions van Leeuwenhoek builds a simple with. < a href= '' https: //www.scienceprofonline.com/microbiology/how-to-use-compound-microscope.html '' > How to use a Microtome & amp ; & quot into. By the stage until a focus is achieved microscope - Virtual Labs < /a > 5. Up the high power 10 steps in using microscope lens the holder ring to desired position, and bring the stage =... Pipette to draw a few questions to get to know the microscope rests securely on a table the. Tip 6: cover the microscope must be put on the stage and held in with. Microtome & amp ; & quot ; Push the control lever in to open up the power. Once again, move the microscope on a glass slide on the stage and held in place the... Everyday - ZEISS < /a > 2 switch on the stained tissue and gently tap out any bubbles... The turn the revolving nosepiece so that you use special steps 1-5 using the microscope is not plugged.... Or from a bright lamp ) shines in at the bottom and two-dimensional analysis of force! Lens paper to maintain and clean lenses away from the slide is on!: Prepare a Working Space and Protect Yourself and 40x with the toward...

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Last modified: 12.05.22
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