Einstein used a combination of theories on mass, energy and light to come up with his formula of e=mc2 and from that he became the father of modern physics. Michael Faraday was an uneducated English blacksmith who grew up in the 19th century. When Faraday was 20, he received tickets to a series of lectures at the Royal Institution that was the beginning of his journey into science . Faradays interests in science soon brought him to the top of his field where he discovered the invisible fields of electricity and magnetism .He created the law of conservation of energy which is the total amount of energy in an isolated system remains constant over time. Faraday also discovered the electromagnetic waves when conducting an experiment that later on led to the invention of the electric motor.
Describe the life of the personality you have studied (2010 HSC) Born in Mannheim, Germany in 1905, Albert Speer was persuaded to take up architecture by his father who made a significant impact on Speer’s life. He pursued his architecture studies at the Institute of Technology in Karlsruhe in 1923 and graduated in four years later, two years before the Great Depression. He became Professor Tessenow’s assistant, a supporter of the Nazi Party in the same year, opening the door for Speer. It must be noted that Speer and his family were an apolitical family. Speer’s first introduction to Nazism was in 1930 where he attended a meeting which Hitler spoke at.
After abandoning his dream of becoming a mathematician Speer began his career in architecture and in 1923 attended the Institute of Technology in Karlsruhe, finishing his architecture course in 1927. After his graduation from the Institute Speer began to work as his old professors assistant (Professor Tessenow). By 1930 the Nazi movement was becoming more popular with the German people and many of the students at the Institute where Speer worked had begun to support the party. In December of that year Speer was persuaded by his students to attend a Nazi rally where Hitler himself was present. Hitler delivered a charismatic speech where Speer was drawn into each word he spoke and was evidently carried away with the waves of enthusiasm and emotion which would, in later years, attribute to Speer’s defence at the Nuremburg trials claiming he was a ‘follower of Hitler who drew men in with a magnetic force and had not thereafter released me’ – Speer Speer then caught up in the Nazi frenzy joined the NSDAP Party in March 1931.
7. You want to build a circuit which causes a ligh tbulb to turn on when you throw a switch. So, you build the circuit if Figure 5. When the switch is connected to point A the capacitor charges, and when you connect the switch to point B the light goes on. Let the resistance of the light bulb be Rℓ = 1.50 ×103 Ω, the potential difference across the battery is VB = 10.0V , and the capacitor has a capacitance of C = 1.35 × 10−4 F
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Albert Einstein was born in Ulm, in Württemberg, Germany, on March 14, 1879. Six weeks later the family moved to Munich, where he later on began his schooling at the Luitpold Gymnasium. At the age of 16 he moved to Switzerland and graduated from the Federal Institute of Technology. In 1902 he became a clerk with Swiss Patent Office, where he worked with new inventions. He was an extraordinary individual who studied Theoretical physics which is a branch of physics which employs mathematical models and abstractions of physics to rationalize, explain and predict natural
He was able to enter Westminster School at the age of thirteen, and from there went to Oxford, where some of the best scientists in England were working at the time. Hooke impressed them with his skills at designing experiments and building equipment, and soon became an assistant to the chemist Robert Boyle. In 1662 Hooke was named Curator of Experiments of the newly formed Royal Society of London -- meaning that he was responsible for demonstrating new experiments at the Society's weekly meetings. He later became Gresham Professor of Geometry at Gresham College, London, where he had a set of rooms and where he lived for the rest of his life. His health deteriorated over the last decade of his life, although one of his biographers wrote that "He was of an active, restless, indefatigable Genius even almost to the last."
After this he joined the Bucharest Military School where he graduated as an artillery officer. Fond of technical problems, especially of flight technics, in 1905 he built a 'missile-airplane' in Bucharest for the Army. Then he went up to Berlin to attend studies at Technische Hochschule in Charlottenburg, after which he followed with studies at the Science University in Liege, part of the Electrical Institute in Montefiore. He registered at the Superior Aeronautical School in Paris where he graduated in 1909. H. Coanda began his engineering practice in aerodynamics where he is only now becoming become world reknowed.
Carbon nanotube transistors operate as unconventional Schottky barrier transistors in which transistor action occurs primarily by varying the contact resistance rather than the channel conductance. These types of FET require careful alignment of the Schottky barrier and gate electrode which leads to manufacturing challenge. Also the presence of Schottky barrier lowers the ON-current. Figure 3.7: Schottky-barrier (SB) CNTFET Partially gated (PG) CNTFET PG-CNTFET is a depletion mode CNTFET in which the nanotube is uniformly doped or uniformly intrinsic with ohmic contacts at their ends. PGCNTFETs can be of n-type or p-type when respectively n-doped or p-doped.
The total transmission probability will be the product of the individual tunnel probabilities of each rectangular barrier. In the limit where the rectangular barrier thickness Δxi is infinitesimally small; The Tunnel Field Effect Transistor: In a TFET, instead of changing the physical barrier height between the source and drain as we would in a MOSFET, we use the gate to control the effective, electrical thickness of the barrier and thus the probability that electrons can slip through it. The above figure shows an n-channel TFET structure and energy band diagrams of operation. A positive gate voltage pulls the energy band downwards in the channel. This causes the conduction band in the source and the valence band in the channel to overlap, opening up a tunneling window.