Microscopes by Joan Messenger https://padlet.com/jmessenger/dyhgum9maht3 Write a padlet post of something you learned or found interesting about microscopes from videos viewed today in class. en-us 2017-09-26 15:04:09 UTC 2017-09-30 16:38:22 UTC hello@padlet.com Mason Freburger https://padlet.com/jmessenger/dyhgum9maht3/wish/191432586 What I learned about Microscopes
Four hundred years ago the first microscope was created it was called the optical microscope. Galileo, Hans Lippeshey, Zacharia Janssen inspired the idea of the first microscope. Anthony Van Leeuwenhoek is the won who created the hand held microscope. Also first person to examine human cells. 1926 chemist Richard Zimandy he discovered how to study particles smaller than a wave length. He also developed the ultra microscope. 1956 Frits Zernike built the phase contrast microscope. He also won a nobel peace prize for his work. He helped to study colorless and transparent materials. ]]> 2017-09-26 19:14:34 UTC https://padlet.com/jmessenger/dyhgum9maht3/wish/191432586 Kennedy Matu https://padlet.com/jmessenger/dyhgum9maht3/wish/191432887 What I learned about microscopes is that there have many versions of them throughout the years. Galileo's invention on the telescope helped out the creation of the first microscope created in 1595 by Zacharias Jansen's father, Hans. They wanted to find out what would happen if you took the telescope like the one created by Galileo, which had a big concave lens to gather light and a convex lens on the other end to magnify it, and instead use two very small, almost spherical, convex lenses. This was able to magnify things up to nine times. Seventy years later, Robert Hooke improved their designs, and used his own invention to study the natural world. Then, Anthony Van Leeuwenhoek designed his own handheld microscope with new special lenses that could magnify things up to 270 times, and for the first time, a whole new world opened up to the human eyes. He discovered organisms that no one even thought to have existed, like the bacteria in rain water and human saliva, which he called animalcules. He also was the first person to observe red blood cells and sperm. In the 1800s, the telescope that was created then is the most similar version to the one we use today.]]> 2017-09-26 19:15:19 UTC https://padlet.com/jmessenger/dyhgum9maht3/wish/191432887 Gregory Temple https://padlet.com/jmessenger/dyhgum9maht3/wish/191440899 What I learned about
Microscopes 
The first microscope was created four hundred years ago. Anthony Van Leeuwenhoek created the first man held microscope. Other creators/ ideas are Galileo, Hans Lippeshey , Zachariah Janssen. The first person the examine human cells was Richard Zimandy. The first microscope was created with a convex lens and a concave lens combined , so u can see very close out of the glass . Robert Hooke improved there designs , and used his own invention to study the natural world. Anthony Van Leeuwenhoek was the first to microscope all of the cells and molecules.]]> 2017-09-26 19:35:42 UTC https://padlet.com/jmessenger/dyhgum9maht3/wish/191440899 Mikey Muhlenfeld https://padlet.com/jmessenger/dyhgum9maht3/wish/191442903 I learned about the history of microscopes  during the 1590's, two Dutch spectacle makers, Zacharias Jansen and his father Hans started experimenting with these lenses. They put several lenses in a tube and made a very important discovery. The object near the end of the tube appeared to be greatly enlarged, much larger than any simple magnifying glass could achieve by itself. Their first microscopes were more of a novelty than a scientific tool since maximum magnification was only around 9x and the images were somewhat blurry. Although no Jansen microscopes survived, an instrument made for Dutch royalty was described as being composed of "3 sliding tubes, measuring 18 inches long when fully extended, and two inches in diameter". The microscope was said to have a magnification of 3x when fully closed, and 9x when fully extended.It was Anton van Leeuwenhoek (1632-1723), a Dutch draper and scientist, and one of the pioneers of microscopy who in the late 17th century became the first man to make and use a real microscope.Van Leeuwenhoek achieved greater success than his contemporaries by developing ways to make superior lenses, grinding and polishing five hundred and fifty lenses to make his new lens tube that had a magnifying power of 270x and could view objects one millionth of a meter other microscopes of the time were lucky to achieve 50x magnification.Van Leeuwenhoek made many biological discoveries using his microscopes. He was the first to see and describe bacteria, yeast plants, the teeming life in a drop of water, and the circulation of blood corpuscles in capillaries. I learned that Zacharias Jansen was the first to make the microscope by playing around with the lens and in that day if they were lucky they would get to 50x zoom also that if you look through the small end and look out the big end you get better zoom.]]> 2017-09-26 19:41:33 UTC https://padlet.com/jmessenger/dyhgum9maht3/wish/191442903 Aidan Height https://padlet.com/jmessenger/dyhgum9maht3/wish/191444663 What I learned about microscopes is that  a microscope has seven main parts to it. They are the eye piece, body piece,  arm, stand, light source, and on and off switch. The microscopes we use today have three magnifications. The base of the microscope is used for support. If it didn't have an arm is would just collapse. when you put something on the stage you need to center it so you can see it better. When Galileo made a microscope it had a convex and a concave lens. The first modern microscope was made in the 1800's. With a microscope you can see lots things you can't see with the naked eye.                                                                                                                               ]]> 2017-09-26 19:46:53 UTC https://padlet.com/jmessenger/dyhgum9maht3/wish/191444663 Dylan Carver https://padlet.com/jmessenger/dyhgum9maht3/wish/191445454 There is something interesting I learned and found interesting about microscopes. Something that that I found interesting about microscopes is that they have lasted 400 years. I never thought they have lasted that long.  Another thing I found interesting was that they have so many pieces.  I wasn't expecting all of those tools to be there.  I thought it was only a couple pieces.  The last thing I learned was that a lot of people kept on making microscopes until today. That is what I learned about and found out about microscopes.]]> 2017-09-26 19:48:53 UTC https://padlet.com/jmessenger/dyhgum9maht3/wish/191445454 Ben Madore https://padlet.com/jmessenger/dyhgum9maht3/wish/191446385 What I learned about the microscope. The first microscope was made four hundred years. I learned that there is eleven parts in the microscope. There is the ocular lens (eyepiece), body tube, nose piece, objectives, stage clips diaphragm, light, arm, stage, coarse adjustments, and fine adjustments. The arm of the microscope is so it doesn't collapse when it is standing. The eyepiece is where you look out of. The tube is where it connects the eyepiece. The nose piece holds three objective lenses. I think microscopes are really cool.]]> 2017-09-26 19:52:09 UTC https://padlet.com/jmessenger/dyhgum9maht3/wish/191446385 Kyle Bacso https://padlet.com/jmessenger/dyhgum9maht3/wish/191447790 The first microscope was made over four hundred years ago. If microscopes weren't invented there would not be a cure for polio, or we would not have been able to find microchips. One of the first people to invent the microscope were Hans and Zacharias Jenssen(father and son). In the fifteen hundreds they made their living out of making eyeglass lens grinders. Onsen found that his device could magnify up to nine times,it also had short vocal length witch means it could make objects appear closer than they really are. Seventy years later a man named Robert Hooke tricked out Onsets design, he named it cells. The four main parts of a modern day microscope include, ocular lenses(eye piece), the stage, objective lenses, and of course the lighting source. Frits Zernike won a Nobel Peace Prize in Physics for inventing a phase-contrasts microscope, witch allowed the study of colorless and transparent materials. These are the things I learned in today's videos.]]> 2017-09-26 19:56:49 UTC https://padlet.com/jmessenger/dyhgum9maht3/wish/191447790 Olivia Berkeridge https://padlet.com/jmessenger/dyhgum9maht3/wish/191447919 What I learned about the microscope The first microscope was created four hundred years ago. It has changed a lot since then. There are eight parts to the modern day microscope. The ocular lens (aka the eyepiece), the tube, revolving nose piece, arm,stage, coarse adjustments, stage clips, and the light. The eyepiece is what you look through to see your slide. The tube connects the eyepiece and revolving eyepiece . The stage is where you place your slide. The stage clips hold your slide in place. Coarse adjustments adjust the stage. The revolving eyepiece has three settings low, medium, and high. Finally the light helps see the slide because it makes it transparent. I think microscopes are awesome. ]]> 2017-09-26 19:57:20 UTC https://padlet.com/jmessenger/dyhgum9maht3/wish/191447919 Liam Kansler https://padlet.com/jmessenger/dyhgum9maht3/wish/191448723 The first ever microscope was invented over four hundred years ago in the 1500's. The inventors of the microscope were father and son, Hans and Zacharias Janssen. Seven years later, an English philosopher Robert Hooke made his own design of a microscope, called cells. Microscopes are practically a property of light with a short focal length. There are eleven parts in the microscope, the Eyepiece, Arm, Rack Stop, Stage Clip, Coarse Focus, Fine Focus, Revolving Nosepiece, Objective Lens, Stage, Condenser, Illuminator, and last but not least, the Base. There are many types of microscopes and it is a very important tool to use in science. I have enjoyed learning about microscopes so far and i can't wait to learn more about them.]]> 2017-09-26 20:00:14 UTC https://padlet.com/jmessenger/dyhgum9maht3/wish/191448723 Jacob Sack https://padlet.com/jmessenger/dyhgum9maht3/wish/191456367 For more than 400 hundred years we have been able to use Microscopes! Hans and Zacharias Jenssen ( father and son team. Were making there living as eye glass lens grinders at times when everyone wanted them. Jenssen wondered what would happen if he put two convex lenses. They found out there device could magnify objects up to five times. Seventy years later Robert Hooke tricked out the old design and used his own version to study the natural world. when he studied cork under his invention he saw tiny compartments that looked like monks chambers, so he called them cells. Soon after that a Dutch Polymath  Antony Van Leeuwenhoek designed his own handheld microscope with a new lens that could magnify object up to 270 times. He discoverer organisms that no one new even existed. first to observe human cells. each new generation we design better and even more power full microscopes.    
  ]]> 2017-09-26 20:27:19 UTC https://padlet.com/jmessenger/dyhgum9maht3/wish/191456367 Cici Yankuba https://padlet.com/jmessenger/dyhgum9maht3/wish/191459376 For more than four hundred years people in the science community have been able to use microscopes. Microscopes have many different parts to them, each is very important. One of the earliest microscopes were created by Galileo. Galileo's microscope had a really big concave lens on one end that was used to gather light. On the other side was a convex lens that could magnify it. Almost seventy years later English Philosopher, Robert Hooke tricked out the Onsens design and used his own version to see the natural light of the world. One of the very first handheld microscopes was made by Dutch Polymath Antony van Leeuwenhoek. His new and improved design could magnify objects up to 270 times. He discovered organisms that no one even knew existed. For example, bacteria, human saliva, which he called animalcules. Science is a very interesting topic you could learn from and after watching these three videos, I learned a lot about this fascinating tool called a microscope. ]]> 2017-09-26 20:38:10 UTC https://padlet.com/jmessenger/dyhgum9maht3/wish/191459376 Aidan Hackett 2019ahackett https://padlet.com/jmessenger/dyhgum9maht3/wish/191460134 There are eleven different parts of the microscope. There is an eye piece, which you put your eye on the eye piece so you can see the slide. There is a body tube, which connects the eyepiece to the lens. There is a nose piece, which holds 2-4 lenses. There is a objective lens, which helps you to see it from different magnifications. There is a arm, which supports the microscope and you should always hold the arm when you carry the microscope. There is a stage, which is flat and is where you place the slide. There is a light source, which helps you see the source better. There is stage clips, You use it sometimes for the slide. There is a on/off switch, to turn it on and off. There is a base, which is at the bottom and is used for support. There is a diaphragm, which controls how much light is showing through the slide (not used often). ]]> 2017-09-26 20:40:55 UTC https://padlet.com/jmessenger/dyhgum9maht3/wish/191460134 Madeline Waldt https://padlet.com/jmessenger/dyhgum9maht3/wish/191465370 What I learned About Microscopes
Today in class I learned that there are ten different parts to a microscope.The eyepiece allows you to view the specimen. The body tube is long tube that connects the eyepiece to the objectives. Objective lenses are the low, medium, and high you can see the specimen. The revolving nose piece holds multiple lenses, allowing the user to achive various levels of magnification. The arm connects the body tube to the base to keep all the other parts in line. A stage is a small platform where the specimen is mounted for examination. The diaphram controls the light able to pass through aperture. The course adjustment knob is used to turn objective lenses toward or away from the specimen. The Aperture allows the light through. Last but not least the on/off switch turn the microscope on and off.]]> 2017-09-26 21:03:21 UTC https://padlet.com/jmessenger/dyhgum9maht3/wish/191465370 Abby Streib https://padlet.com/jmessenger/dyhgum9maht3/wish/191472086 What I learned about the history of microscopes.  Scientists using this tool called a microscope have seen so many things. Like using the Optical microscope we  cured Boleo and even maked micro chips. People all have different opinions on who invented the microscope. Some people believe that it's the men who invented the telescope their names are Galileo Galilei and Hans Lippershey. Also many give credit to the Dutch father and son team Zacharias and Hans Janssen that were eye glass lens doctors. Did you know Robert Hooke created his own microscope? Anthony Van Leeuwenhoek invented a hand held microscope. He also Found bacteria in rain water and saliva no one even knew that bacteria existed and he called it Animalcules. Also  Anthony Van Leeuwenhoek was the first to observe human cells like blood sells. In 1926 Richard Zsigmondy broke what they called a code which really was scientific results his code was to study smaller than a wave length of visible light he did this by using the ultra microscope. Last but not least Frits Zernike invented the contrast microscope  that made it possible to study the color less and transparent. This is what I learned about microscopes.]]> 2017-09-26 21:35:44 UTC https://padlet.com/jmessenger/dyhgum9maht3/wish/191472086 Scotty Simmons https://padlet.com/jmessenger/dyhgum9maht3/wish/191473661 What I learned about microscopes is that there is many parts of the microscope. There is the eyepiece, body, nose piece, objective lens, arm, stage, light source, stage clips, on/off switch, base, and diaphragm. Every single one of them is important. I also learned that the very first microscope was built in the 1500's. The people that built it were Hans,  Zacharias, father, and the son. 
Robert Hooke improved their microscope to make it better. Anthony Van Leuwenhoek was the first to microscope all the cells and molecules.]]> 2017-09-26 21:42:40 UTC https://padlet.com/jmessenger/dyhgum9maht3/wish/191473661 Grace Griffin https://padlet.com/jmessenger/dyhgum9maht3/wish/191480090  From ancient times, people have wanted to see things  smaller than they could with the naked eye. Although the first use of a lens is a bit of a mystery, it's now believed that use of lenses is more modern than previously thought. During the 1st century AD (year 100), glass had been invented by the Romans. They were looking through and testing the glass. They experimented with different shapes of clear glass and one of their samples was thick in the middle and thin on the edges. They quickly discovered that if you held these "lenses" over an object, the object would look larger. These early lenses were called magnifiers or burning glasses. The lenses were not used a lot until the end of the 13th century when spectacle makers were producing lenses to be worn as glasses.]]> 2017-09-26 22:27:18 UTC https://padlet.com/jmessenger/dyhgum9maht3/wish/191480090 Logan Mezzatesta https://padlet.com/jmessenger/dyhgum9maht3/wish/191492461 I learned a lot about microscopes from watching the video. I never knew that the microscope was invented in the 1500's. I didn't think it was that old. It was a very important discovery because it allowed polio to be cured and scientists could learn more about the human body.  If it wasn't for the microscope, they never would have found that cells exist.  The microscope has come a long way since the first one.  We now have Ultra microscopes that use light that was invented in 1926. And, we even have Contrast microscopes that can see transparent things. I never knew that the modern microscopes were that good. ]]> 2017-09-27 00:25:36 UTC https://padlet.com/jmessenger/dyhgum9maht3/wish/191492461 Cambria Stansfield https://padlet.com/jmessenger/dyhgum9maht3/wish/191493405 For more than four hundred years, people have been able to see the small things more clearly using a microscope. There are many arguments about who invented the microscope first. Some people believe its the people who invented the telescope. Galileo and Hans Lippershey tinkered with using lenses to look at things closer on Earth. Some others give credit to the father-son-duo names Hans and Zacharias Johnson. In the 1500's, they were making a living off of eyeglass making which became very important around that time. People wondered what would happen if they took the  
telescope Galileo made which had a large concave lens used for light and at the end a convex lens to magnify it and turned it into two small, spherical convex lenses. After experimenting, they found they could magnify things up to nine times and it had a short focal length which meant it could bring an image into focus over a short distance. It wasn't until 70 years later that English philosopher Robert Hooke tricked out this invention and made his own to study the natural world. After this invention, Anthony van Leeuwenhoek designed his own handheld microscope that had special lenses that could magnify objects up to 270 times. Thanks to this he discovered new human organs no one else has ever seen. It wasn't until the 1800's that the microscope model we know today was invented.
]]> 2017-09-27 00:30:37 UTC https://padlet.com/jmessenger/dyhgum9maht3/wish/191493405 Alex Eyler https://padlet.com/jmessenger/dyhgum9maht3/wish/191501504 There is so much history about the microscope.  People have been using microscopes for over four hundred years.  It was interesting to learn that without the optical microscope they would not have been able to find a cure for polio. Onsens discovered that two very small convex lenses could magnify up to 9 times. Seventy years later, Robert Hooke tricked out the Onsens design. He named tiny compartments that he saw under the microscope cells. Anthony Van Leevwenhoek designed a handheld microscope with special lenses that could magnify up to 270 times. He discovered organisms, like bacteria found in rainwater and human saliva and called this Animalcules. He was the first to observe human cells, like red blood cells and sperm.  By the late 1800, we arrived at a version of the microscope that is similar to today's microscope.  In 1926, Richard Zsigmandy broke the code to study particles smaller than wavelength of visible light. He invented the Ultra Microscope. Then there was a wave of technology like the electron microscope that uses beams of electrons instead of light to magnify up to 10 million times. It is so interesting to learn how far we have come with the technology of the microscope and what all it can do.]]> 2017-09-27 01:30:17 UTC https://padlet.com/jmessenger/dyhgum9maht3/wish/191501504 Amanda Schall https://padlet.com/jmessenger/dyhgum9maht3/wish/191731232 I find the history behind the microscope very interesting. There were so many people who had a different way or kind of microscope. Galileo and Hans Lippershey both tinkered in using lenses to see things more close up. Robert Hooke took the eyeglasses invention and switch it around to make his own version of a telescope called the Hooke Microscope. He used this microscope to look at they eyes of flies flower pedals and more. Anthony Van Leeuwenhoek designed his own hand held microscope called the Leeuwenhoek Microscope. He used different lenses that could go up to 270x more than the others. He discovered organisms that nobody even knew existed with his microscope. He was the first to observe human cells. For example red blood cells. There are more people leading up to the the microscope which is very interesting and I can’t wait to use the microscopes in a lab.

]]> 2017-09-27 15:42:53 UTC https://padlet.com/jmessenger/dyhgum9maht3/wish/191731232 Matteo Scotto https://padlet.com/jmessenger/dyhgum9maht3/wish/191732791 Since the late 1500's we had microscopes, invented by Hans and Zacharias Janssen. Since then the microscope has been remodeled and improved. The modern microscope has many parts, such as the eyepiece, where you put your eye. The body tube, the part that supports the eyepiece. The arm, where you hold it by. The nosepiece, the part that changes power. Power, there are three different types of power, low, medium, and high. The stage, the part that hold the stage clips and the thing you want to magnify. The adjustments, the part where you adjust the magnification level. The base, the part that holds everything together and has the light source.]]> 2017-09-27 15:45:54 UTC https://padlet.com/jmessenger/dyhgum9maht3/wish/191732791