Janssen was a Dutch spectacle-maker from Middelburg, credited with inventing the first microscope, which at the time was a tremendous increase in technology and allowed for detailed drawing, sketching, and recording. His microscope was very simple, hand-held, and consisted of three draw tubes with lenses inserted into the ends of the flanking tubes.
The lens for the eyepiece was bi-convex and the objective lens was plano-convex, which was a very advanced compound design during this time period. His microscope was able to magnify objects up to three times when closed and up to ten times when fully extended out. Janssen was well known for his invention of the first microscope as well as counterfeiting coins in which he was sent to court and was tried and eventually died in 1638. The game involves the scientist Janssen in the first mission by applying his work of art into use.
My goal was to use a microscope using the same basic draw tubes lenses (in an attempt to emulate Janssen’s microscope) and observe a rare coin from Middelburg (Janssen’s hometown) by flipping different size lenses one over the other in order to read the print on the back of the coin. By flipping the smaller lenses over the bigger lenses or vice versa, you are able to come into focus and clearly read the text print on the back side of the coin which reads, “with many eyes you see my truth the code of Janssen’s 1402. ” This was the main clue to complete the mission.
There were several other orders you could have flipped the lens over one another and it only depended on the size and if you needed to look closer or enhance your vision by using another lens over the other. Janssen’s invention of the first simple microscope was the basis of what modern technology microscopes built off of. http://www. history-of-the-microscope. org/hans-and-zacharias-jansen-microscope-history. php Mission 2 History of Biology (Schwann, Theodor) Theodor Schwann was a German physiologist born in Neuss in Rhenish Prussia on December 7th 1810.
The Essay on Slaughterhouse five Realitivity Of Time
Many writers in history have written science fiction novels and had great success with them, but only a few have been as enduring over time as Kurt Vonneguts Slaughterhouse-Five. Slaughterhouse-Five is a personal novel which draws upon Vonneguts experiences as a scout in World War Two, his capture and becoming a prisoner of war, and his witnessing of the fire bombing of Dresden in February of 1945 ...
He was credited to defining the cell as the basic unit of animal structure. Schwann studied medicine at the University of Berlin. Later in 1838 Schwann became a professor at the Belgian University of Leeuven and in 1848 he was appointed to the University of Liege. Schwann is most famous for his theory of the cell which identifies that cells are the basic particles of plants and animals or for short cells are the basic units of structure. Schwann also recognized that some organisms are unicellular, while others are multicellular.
He discovered that sugar and starch fermentation are not purely chemical, examined the muscle contraction and the structure of nerve cell, and discovered the striated muscles in the upper esophagus and the myelin sheath of peripheral nerves and he also discovered in the gastric juice pepsin, a digestive enzyme for protein. It was the first enzyme that could be presented from an animal tissue. Schwann proposed three generalizations concerning the nature of cells: First, animals and plants consist of cells plus the secretions of cells.
Second, these cells have independent lives, which, third, are subject to the organism’s life. Schwann also contributed to the understanding and classification of adult animal tissues. Schwann’s work was ultimately recognized by scientists in other countries, and in 1879 he was made a member of the Royal Society and also of the French Academy of Science. In 1845 he had received the Copley Medal. Schwann later died January 11, 1882. http://www. merke. ch/biografien/biologen_en/schwann. php Mission 2 History of Biology Matthias Schleiden Matthias Schleiden was born in Hamburg, Germany, in 1804.
He did not originally pursue his interest in botany; instead, he studied law at Heidelberg University from 1824 to 1827. After graduation, Schleiden became a barrister in Hamburg, but he soon grew dissatisfied with his legal practice and suffered a deep depression that culminated in his attempted suicide. In 1831 and returned to college to pursue his real interests in botany and medicine. He took his degree in botany and medicine and observed their development using the microscope because he felt that was the only way plants could be studied.
The Essay on Cell Theory Cells Schwann Things
Cell Theory The Cell Theory states that all organisms are composed of similar units of organization, called cells. The concept was formally articulated in 1839 by Schleiden and Schwann and has remained as the foundation of modern biology. Formulation of the cell theory In 1838 Theodor Schwann and Matthias Schleiden were talking about their studies on cells. It has been suggested that when Schwann ...
By 1838 his methods had led him to propose the cell theory for plants. Schleiden was the first to recognize the importance of cells as fundamental units of life. Schleiden realized that the cell nucleus is connected to cell division but faulty believed that that new cells erupted from the nuclear surface. Schleiden was one of the first German biologists to accept Charles Darwin’s theory of evolution. He became professor of botany at the University of Dorpat in 1863. He concluded that all plant parts are made of cells and that an embryonic plant organism arises from the one cell.
He played an important role in the cell theory along with Schwann in the cell theory. His main area of study involved a microscope and he viewed cells. Schleiden died later on June 23rd 1881. http://www. bookrags. com/biography/matthias-jacob-schleiden-wsd Mission 3 History of Biology Mission 3 of the game was on the famous scientist Anton Van Leeuwenhoek who is considered to be the “Father of Microbiology” because of the advances he made in microscope design and use. Leeuwenhoek was born 1632 in Delft, Holland.
In his early years he started as an apprentice in a dry goods store where he there used a magnify glass to count threads in cloth. He was interested in the glasses and was inspired in which he taught himself new methods for grinding and polishing tiny lenses. Eventually he got himself to lenses that could magnify 270x diameters which was the most advanced at the time. His work on these lenses later led to the building of the microscope. And he became famous for the discoveries of biological creatures he observed using his microscope.
The Essay on Cell Theory and Knowledge and Understanding
Explain how the advance in technology allowed the progressive accumulation of knowledge and understanding of the cell theory The technological advancements, in the scientific field, have opened opportunities for scientists to accumulate knowledge and understanding of the cell theory and have thus provided justification to the living organisms that exist. Notably, prior to the proposal of the cell ...
He was the first to see and describe bacteria (1674), yeast plants, the teeming life in a drop of water, and the circulation of blood corpuscles in capillaries. Unfortunately none of Leeuwenhoek’s microscopes exist today. In the third mission I had to do a number of things to complete the mission such as a lot of research. Firstly I had to go and view an image of Leeuwenhoek and click on the paper in the portrait that he was holding and then look at images that were given to me and match the description to the image. The images were of microscopic organisms that were magnified up close using a microscope.
By using the microscope that Leeuwenhoek had created he was able to magnify objects and look at organisms that you cannot see with the naked eye which is a great advancement in science. Leeuwenhoek discovered blood cells, and was the first to see living sperm cells of animals. He discovered microscopic animals such as nematodes, rotifers, and many more. In 1680 Leeuwenhoek was elected a member of the Royal Society and later in his years he became famous all over Europe and in 1698 and later died in 1723.
