MIKROSKOP : SEJARAH, JENIS, BAGIAN DAN FUNGSINYA

This video will discuss about a microscope. Microscope comes from Greek language, namely mikros and skopēin. Mikros means small and skopēin means to see. So if we combine, a microscope means a tool used to see objects that are too small to be seen with the naked eye.

Now let's take a look at the history of finding microscopes. We will learn history for a while. So, at first, the first time I thought about making a microscope was Jaharias Jassen.

Jaharias Jansen actually worked as a glasses maker and he was helped by his friend Hans Jansen they made the first time in 1590 the first microscope made at that time was able to see the size of the object up to 150 times from the original size Wow cool too

The next scientist is Galileo Galilei who is from Italy. He completed the construction of his microscope in 1609. The name of the microscope is Galileo microscope according to the name. The microscope that was assembled is from an optical lens. And here he has limited ability to enlarge the size of the object.

Next is Antonie van Leeuwenhoek 1632-1723. He developed microscopic magnification. Actually, he is not a professional researcher or scientist. He is only a wine tester in the Dutch city of Delft. But he has a great desire to know about the universe. So he became the discoverer of the microscope or the discoverer in the microbiology section.

Now we go into the types of microscopes. Usually what we know is that microscopes are if not light, electrons. Well, here are actually many points of the type of microscope. Well, let's see the first one, the name is an optical microscope. An optical microscope like this image. This is the first type of microscope that was created or found or called an optical microscope.

This type of microscope is also found by Anthony van Leeuwenhoek as in the picture. The second is a stereo microscope. We also found this microscope in the laboratory. This is usually only used for objects that are relatively larger in size. And the magnification is 7-30 times. The third is a microscope with a microscope compound. Here is the picture. This microscope with a microscope compound.

requires high quality not only on the lens and the eyepiece but also on the sub stage condenser the fourth is the polarization microscope this is the image the fifth is the phase contrast microscope this is the image

the sixth light microscope this is a type of microscope that we often see, we usually see it and this will also be explained by parts of the light microscope as well as its function the seventh dark field microscope this dark field microscope is usually used to observe living bacteria especially bacteria that are so thin that they are almost close to the limit of the microscope's power

The eighth is the PANDER or FLORENCEANCE microscope. This type of microscope is usually used to display genetic material in cells, for example DNA and RNA. It can also be used to study cell viability and population.

the ninth ultraviolet microscope this microscope uses a power lens and this microscope is too complicated and expensive for daily work the last type of microscope is an electron microscope this microscope is able to magnify objects up to 2 million times wow, which uses electrostatic and electromagnetic

If we have heard the term TEM and SEM, TEM is Transmission Electron Microscopy and SEM is Scanning Electron Microscopy, that is part or type of electron microscope.

Okay, now we go to the Microscope section, but this is specific for the light microscope. The first is the eyepiece lens. The eyepiece lens is this one, a lens that is close to the observer's eye. And its function is to shape a shadow. The shadow is sharp and enlarged from the lens. The second is the microscope tube.

its function is to connect the lens of the lens with the lens of the lens the third is the revolver revolver functions to adjust the magnification of the lens by rotating it

the fourth and the fifth are actually the same lens, the objective lens is the same, but the difference is that the fourth is weak enlargement, the fifth is strong enlargement. Well, the function of the lens is that it is close to the object, close to the object, its function is to shape a real shadow, reverse it and enlarge it. If it's the fourth, it's a weak enlargement, so this is the first one.

when we start to see it, it must be the size of number 4 first, the weak first, the small one later if the image is clear, then we enter the E size which is stronger the sixth is the microscope table or the object table it functions as a place to place the object that will be observed

the seventh clip, the clip is another name can be a glass clipper or a cedia holder so this clip or clipper functions to clip glass that covers the object so that it is not easy to move the eighth is the foot of the microscope this foot functions to hold or hold the microscope the ninth is a mirror or reflector here the mirror consists of two types of mirrors actually flat mirror and square mirror

This reflector functions to display light from the mirror to the object table through the hole in the object table and towards the observer's eyes. The flat mirror is used when the required light is full, while if there is no light, then use a square mirror because it functions to collect light. The tenth is the diaphragm. The diaphragm functions to control how much light is included.

The eleventh is the microscope handle or handle, this function is according to the name as a handle on the microscope. The twelfth is a smooth spinner or the other name is a micrometer. This spinner functions to raise and lower the microscope slowly and the shape is smaller than a macrometer.

the 13th is a rough turner or a macrometer or a rough direction screw. Macrometer functions to quickly raise and lower the microscope tube