World War II Innovations

Introduction The period following the end of World War II was characterized with a great deal of technological development, probably as a consequence of the victories achieved by the Allied forces. The aftermath of World War II set in motion a wave of innovations that proved to be greatly beneficial in improving the living standards of the global population.Advertising We will write a custom essay sample on World War II Innovations specifically for you for only $16.05 $11/page Learn More Such advancements in technology were a direct consequence of the experiences gained during the several years of the War. An urgent need was felt to innovate in order to have more technologically advanced weaponry that would allow having the much required edge in winning the war. The potential for technological development had been thus created during the Second World War itself. After it ended in 1945, the available resources and technology could be gainfully used in the development of consumer goods that led to improved standards of living on a global basis. The technological innovations in this regard were made in several fields such as Linguistics, Medicine, Weaponry, Intelligence and Communication in addition to the technological progress made in manufacturing and service industries (Castells 45). The rapid advancement in technology during World War II was primarily inspired by the propensity to research and devise military strategies that would allow penetration and sabotage of enemy forces and supply lines respectively. In addition, innovation in technology was also inspired by the enhanced ability of the military to use technology in gathering intelligence, which was gainfully used in obtaining the much needed information about military capabilities and movement of enemy forces. After the World War II ended, the technology developed till that time could be further innovated in creating a virtual technological revolution that transformed the lives of humanity in the coming decades (Gray 36). World War II heralded noteworthy technological innovations in the areas of nuclear technology and information technology that revolutionized ways of living in the 21st century. Nuclear Technology Invention of Nuclear Reactor The invention of the atomic bomb by the United States and its allies eclipses any other innovation made during World War II. Named as the Manhattan Project during World War II, the nuclear program of the Allies led to catastrophic consequences for the Axis forces, particularly in the context of the bombings on Hiroshima and Nagasaki, which led to the death of millions of people.Advertising Looking for essay on history? Let's see if we can help you! Get your first paper with 15% OFF Learn More Although the initial objective of the Manhattan Project was to use nuclear technology in establishing reactors for the generation of electricity under the auspicious leadership of Italian physicist Enrico Fern i, the need to annihilate German, Italian and Japanese forces during World War II made the Allied leadership to focus on developing the first atomic bomb. It was under the leadership of Enrico Fermi, who is recognized as the father of the atomic bomb because of his exhaustive research and positive outcomes in developing nuclear power, that the US made use his technology in establishing several nuclear power plants across the entire country (Russell 93). Further innovations in nuclear technology were made by Enrico Fermi after the end of World War II, leading to major breakthroughs in reducing dependence on electricity generated through coal fuel and hydro power. This was made possible because of the innovation that led to the availability of cheaper, environmentally friendly and reliable nuclear generated electric power. Innovation of Radiology Medicine Besides its significant role in leading the green revolution through generation of environmentally clean energy, innovation in nucl ear technology during World War II allowed wider application in medicine, especially in radiology therapy and imaging. The use of nuclear technology in medicine can be traced back to the campaign initiated by the Polish Physics and Chemistry Nobel Prize laureate Marie Curie just before the beginning of World War II. Marie Curie embarked on a campaign to collect radium for use in radiology medicine. She is credited with the establishment of globally recognized research institutes of radiology medicine, including the Curie Institutes in Paris and Warsaw. Nuclear medicine finds wide application in radiology treatment of different cancerous malignancies with the use of techniques such as neoplasm and radiology imaging. Radar Technology The innovations in radar technology during World War II helped in making improvements in the aviation industry and its associate role of uplifting the living standards of the global population. Such innovations also helped in enhancing national security from the perspective of external and internal aggression. Radar technology involves the use of radio waves in the detection of far-off objects.Advertising We will write a custom essay sample on World War II Innovations specifically for you for only $16.05 $11/page Learn More Such objects may include ships, aircrafts, submarines and a wide-range of missiles and rocket weaponry. Innovation of radar technology during World War II led to improvement in bombsights and radar capabilities, which were inspired by their increased use in World War II. Radar technology is even regarded as the defining innovation that tilted the balance in favor of the allied forces during World War II. Later, it also heralded the revolution in both military and civil aviation in the contemporary world. Radar technology was invented immediately after World War II began, but significant improvements in the technology were made during the war through research and development, mainly for military purposes. This new technology allowed the use of applications with which approaching enemy aircraft and ships could be detected. Vaccines Collaborative arrangements were made between the military and academia in efforts to prevent war-exacerbated diseases, particularly pneumococcal pneumonia and influenza and such initiatives led to the innovation of disease prevention vaccines. Wartime research programs on preventable disease are recognized for having led to the improvement and innovation of 10 new vaccines for treatment of a series of virulent preventable diseases (Godin 121). Besides, wartime research in health and medicine science and technology led to innovations relative to substitute blood samples such as plasma, antibiotics such as penicillin and insecticides such as DDT. Nevertheless, the innovation of vaccines stands out as the most important achievement in the area of medical and health technology during World War II. Such vaccines involved development of hig hly effective, safe and licensed antibiotics and microbial preventative therapy for immunization against several diseases, which did not exist before the War began. Electrolysis Chemistry, Digital Technology Military Technology Other notable innovations during World War II having significant impact on the lives of human beings in the 21st century include the demagnetization of ships to prevent them from torpedo and mines attacks. This technique also helps in detection of submarines. Demagnetization technology was developed during World War II and is particularly useful in exploration of mineral and ore deposits.Advertising Looking for essay on history? Let's see if we can help you! Get your first paper with 15% OFF Learn More Research is currently underway to come up with innovations that will help the ship building industry to use corrosion free material that prevents ships from the harmful impacts of corrosive sea water. This is possible through the application of cathode electrolysis technology, which was developed during World War II. World War II also spearheaded the digital revolution of the late 20th century and early 21 century through robust research in information transmission, electronics and intelligence. Amongst these was the development of the encryption machine by Germans, which heralded the large scale application of digital encryption in information technology. Conclusion It is apparent that in contrast with World War I, the Second World War featured both military and scientific methods of warfare as the two opposite camps tried to outmaneuver each other through the use of technologically advanced, updated and state-of-the-art military equipment and techniques, which could not have been made possible without the support of science and technology. Innovations in both military combat weapons and military technology have led to the improvement of standards of living in the 21st century. People feel more secure now because there are lesser risks of aggression and the military is very well equipped with the latest technology in doing away with security threats. This has been made possible because of the use of science and technology, which has led to innovations that have improved defense capabilities as also the living standards of people. Many hold that the innovations in nuclear technology have enhanced fears of another world war, which will lead to the destruction of the world. However, such fears do not have a strong basis because the global community understands the consequences of a nuclear war and recognizes that nuclear technology is best used for the welfare of human societies. Works Cited Castells, Manuel. Technopoles of the World The Making of 21st Century I ndustrial Complexes. Hoboken: Taylor and Francis, 2014. Print. Godin, Benoit. Measurement and statistics on science and technology 1920 to the present. New York: Routledge, 2005. Print. Gray, John. Reconstructions of secondary education: theory, myth and practice since the second world war.. S.l.: Routledge, 2012. Print. Russell, James. Innovation, Transformation, and War Counterinsurgency Operations in Anbar and Ninewa Provinces, Iraq, 2005-2007. Palo Alto: Stanford University Press, 2010. Print. This essay on World War II Innovations was written and submitted by user Mar1a to help you with your own studies. You are free to use it for research and reference purposes in order to write your own paper; however, you must cite it accordingly. You can donate your paper here.

Daughter Cells and Chromosome Number in Mitosis and Meiosis

Daughter Cells and Chromosome Number in Mitosis and Meiosis Daughter cells are cells that result from the division of a single parent cell. They are produced by the division processes of mitosis and meiosis. Cell division is the reproductive mechanism whereby living organisms grow, develop, and produce offspring. At the completion of the mitotic cell cycle, a single cell divides forming two daughter cells. A parent cell undergoing meiosis produces four daughter cells. While mitosis occurs in both prokaryotic and eukaryotic organisms, meiosis occurs in eukaryotic animal cells, plant cells, and fungi. Daughter Cells in Mitosis Mitosis is the stage of the cell cycle that involves the division of the cell nucleus and the separation of chromosomes. The division process is not complete until after cytokinesis, when the cytoplasm is divided and two distinct daughter cells are formed. Prior to mitosis, the cell prepares for division by replicating its DNA and increasing its mass and organelle numbers. Chromosome movement occurs in the different phases of mitosis: ProphaseMetaphaseAnaphaseTelophase During these phases, chromosomes are separated, moved to opposite poles of the cell, and contained within newly formed nuclei. At the end of the division process, duplicated chromosomes are divided equally between two cells. These daughter cells are genetically identical diploid cells that have the same chromosome number and chromosome type. Somatic cells are examples of cells that divide by mitosis. Somatic cells consist of all body cell types, excluding sex cells. The somatic cell chromosome number in humans is 46, while the chromosome number for sex cells is 23. Daughter Cells in Meiosis In organisms that are capable of sexual reproduction, daughter cells are produced by meiosis. Meiosis is a two part division process that produces gametes. The dividing cell goes through prophase, metaphase, anaphase, and telophase twice. At the end of meiosis and cytokinesis, four haploid cells are produced from a single diploid cell. These haploid daughter cells have half the number of chromosomes as the parent cell and are not genetically identical to the parent cell. In sexual reproduction, haploid gametes unite in fertilization and become a diploid zygote. The zygote continues to divide by mitosis and develops into a fully functioning new individual. Daughter Cells and Chromosome Movement How do daughter cells end up with the appropriate number of chromosomes after cell division? The answer to this question involves the spindle apparatus. The spindle apparatus consists of microtubules and proteins that manipulate chromosomes during cell division. Spindle fibers attach to replicated chromosomes, moving and separating them when appropriate. The mitotic and meiotic spindles move chromosomes to opposite cell poles, ensuring that each daughter cell gets the correct number of chromosomes. The spindle also determines the location of the metaphase plate. This centrally localized site becomes the plane on which the cell eventually divides. Daughter Cells and Cytokinesis The final step in the process of cell division occurs in cytokinesis. This process begins during anaphase and ends after telophase in mitosis. In cytokinesis, the dividing cell is split into two daughter cells with the help of the spindle apparatus. Animal Cells In animal cells, the spindle apparatus determines the location of an important structure in the cell division process called the contractile ring. The contractile ring is formed from actin microtubule filaments and proteins, including the motor protein myosin. Myosin contracts the ring of actin filaments forming a deep groove called a cleavage furrow. As the contractile ring continues to contract, it divides the cytoplasm and pinches the cell in two along the cleavage furrow. Plant Cells Plant cells do not contain asters, star-shaped spindle apparatus microtubules, which help determine the site of the cleavage furrow in animal cells. In fact, no cleavage furrow is formed in plant cell cytokinesis. Instead, daughter cells are separated by a cell plate formed by vesicles that are released from Golgi apparatus organelles. The cell plate expands laterally and fuses with the plant cell wall forming a partition between the newly divided daughter cells. As the cell plate matures, it eventually develops into a cell wall. Daughter Chromosomes The chromosomes within daughter cells are termed daughter chromosomes. Daughter chromosomes result from the separation of sister chromatids occuring in anaphase of mitosis and anaphase II of meiosis. Daughter chromosomes develop from the replication of single-stranded chromosomes during the synthesis phase (S phase) of the cell cycle. Following DNA replication, the single-stranded chromosomes become double-stranded chromosomes held together at a region called the centromere. Double-stranded chromosomes are known as sister chromatids. Sister chromatids are eventually separated during the division process and equally distributed among newly formed daughter cells. Each separated chromatid is known as a daughter chromosome. Daughter Cells and Cancer Mitotic cell division is strictly regulated by cells to ensure that any errors are corrected and that cells divide properly with the correct number of chromosomes. Should mistakes occur in cell error checking systems, the resulting daughter cells may divide unevenly. While normal cells produce two daughter cells by mitotic division, cancer cells are distinguished for their ability to produce more than two daughter cells. Three or more daughter cells may develop from dividing cancer cells and these cells are produced at a faster rate than normal cells. Due to the irregular division of cancer cells, daughter cells may also end up with too many or not enough chromosomes. Cancer cells often develop as a result of mutations in genes that control normal cell growth or that function to suppress cancer cell formation. These cells grow uncontrollably, exhausting the nutrients in the surrounding area. Some cancer cells even travel to other locations in the body via the circulatory system or lymphatic system.

ASSIGNMENTbiologychemical and cellular foundations of life Essay

ASSIGNMENTbiologychemical and cellular foundations of life - Essay Example , thus "passive" whereas in In active transport it is possible to go against the concentration gradient and an external source of energy like ATP is required to move the carrier and its materials thus, "active" 3a i A. Connective tissue B. Ciliated epithelium C. Columnar epithelium ii A. Connective tissue joints bone with muscles B. Ciliated epithelium forms lining of the respiratory systems C. Columnar epithelium forms lining of the digestive track. B i and ii The primary function of Connective tissues is to connect and join different organs. Ciliated epithelium tissue has cilia which helps cleaning the surface and restrict settlement of microorganism on to the surface. Columnar epithelium having a appendages called microvilli which helps in smooth movement of food particles in intestine. 4.a. Ribbon shape structure. b. It is a linear chain of amino acids. C.i. X- beta sheets Y-alpha helix ii. Hydrogen bonds d. Tertiary structure is responsible for formation of active site for lysozyme, the site responsible for the enzyme catalysis. 5.a. i-D ii-E iii-A iv-B v-C b. i. Glucose ii.a triglycride iii. an amino acid Simple sugar has aldehyde and ketone whereas Triglyceride contains fatty acids and glycerol . Amino acids possess carboxyl and amino groups. c. Uracil is present in RNA whereas Thymine is present in DNA. 6.a. Mitosis and Meiosis. b. Growth= Mitosis Reproduction = Meiosis C During fertilization two cells are combine and forms zygot. Number of chromosome should be maintain 2n and that's why It is necessary for reduce chromosome number to n fro 2n during gamete formation. 7a G1 phase, S or synthesis phase, andG2 phase. b. G1 phase: The first phase within interphase, from the end of the previous M phase till the beginning of DNA synthesis is...The hydrophobic domain consists of one, multiple, or a combination of -helices and sheet protein motifs. Most of the biological molecules are either larger in size or having definite charges on it. Hence The plasma membrane is non permeable to it. lipid bilayer is permeable only to water molecules and a few other small, uncharged, molecules like oxygen (O2) and carbon dioxide (CO2). These diffuse freely in and out of the cell. Passive transport involves carriers, channels, or direct diffusion through a membrane. This type of transport always operates from regions of greater concentration to regions of lesser concentration. No external source of energy is required, thus "passive" whereas in In active transport it is possible to go against the concentration gradient and an external source of energy like ATP is required to move the carrier and its materials thus, "active" G1 phase: The first phase within interphase, from the end of the previous M phase till the beginning of DNA synthesis is called G1 (G indicating gap or growth).