Quantum chemistry

1. Please summarize your assessment of the paper: YES MAYBE NO Does the paper contain enough significant new physics to warrant publication in the Physical Review? (X) ( ) ( ) Is the paper scientifically sound and not misleading? (X) ( ) ( ) Is the paper well organized and clearly written? ( ) (X) ( ) Are the subject matter and style of…

Discussion – Tayla Dorrington Introduction There are 2 major theories about the universe and how it began. These are the steady state and The Big Bang theory. Both theories have an explanation on how our Universe is, how it began and how it works. Both theories have stuff in common but also have many differences that could completely change the way we look at the Universe. The Big Bang Theory has much more evidence supporting it, while the Steady State Theory has been proven wrong. Big Bang…

Interpretation of the NOESY: (Nuclear Overhauser Effect) spectrum of 1-(2-methyl-1,2,3,4-tetrahydroquinolin-4-yl)azepan-2-one (3a) is as follows. Strong coupling interaction of protons of 2nd and 4th position in 1-(2-methyl-1,2,3,4-tetrahydroquinolin-4-yl)azepan-2-one (3a), was not so strongly observed in COSY because it involves long range coupling i.e. protons attached between 2nd and 4th carbon atom. Hence, we studied NOESY to know the spacial interaction between these two protons. Thus, the…

Jean Jacques Rousseau was a Swiss born philosopher. His father was an educated watchmaker. His mother died at childbirth and his father was exiled from Geneva. He had a hard time living with his mother's family. At the age of 16, he fled Geneva and went to France. Paris was culturally very different from Geneva. He suffered from deep isolation and his life was very unstable. He was involved in many strange affairs with women. However, he met a woman named Mme de Warens who was 10 years older…

Evie McCormack Mr. Acland B Block Physics Lab: Speed of Sound Essential Question Asked: How does the speed of sound differ between metals and gases? Background Information: The speed of sound is gauged by distance over time (distance/time). Certain aspects that can change or affect the speed of sound would include the density of the item through which the sound is traveling. Continuing on with that concept, when sound is…

As we know most of the things we humans learn are by mainly active experimentation or passive observation. Imagination is also one way of learning. For example in physics the first structure of atom was first imagine by a scientist but then that keep on changing . What is active experimentation ? it is when you yourself do some thing new ,which is new to you. that is basically active experimentation. what is passive observation ? passive observation is when you see or observe something happening…

The beam of electrons must hit the screen in one specific spot, as if you were throwing baseballs through a hole against a wall. (Hence quantum physics challenged our classical thinking about objects and was deemed controversial in its early years.) In fact, when a slit is closed, the interference pattern disappears — the photons or electrons form a single band that spreads out from the brightest…

For devices on Nano scale classical physics usually cannot explain transmission of electron through the insulating barrier with higher potential energy than kinetic energy of the tunnelling electrons and in this case the Heisenberg’s uncertainty principle takes place. Barrier penetration can be explained from Heisenberg’s uncertainty principle: If we were to say a particle cannot enter a barrier, we would actually say this particle is not there, i.e. its position uncertainty is Δx = 0 in the…

Fig: Schematic representation of LHC and it's detectors The primary objective of LHC is to answer the following questions: 1. Why some particles are heavier than others? If the Higgs mechanism is valid? 2. If the super-symmetry theory is valid? If yes then if super-symmetric particles exist? 3. If the concept of dark matter and dark energy correct? 4. Why our universe is made up of matter only? 5. What was the state of matter in the early universe? 6. What will be the properties…

WERNHER VON BRAUN Wernher Magnus Maximilian Freiherr von Braun, the father of modern rocketry and one of the most important outer space engineers of the 20th century, was born on 23th of March 1912 in Wirsitz (Wyrzysk)(today in Poland). He was a child of a wealthy family from Germany. With their second son, Wernher, Magnus von Braun and Emmy von Quistorp moved to Berlin in 1915. In those years, Wernher von Braun became interested in music and astronomy. And his passion, astronomy, went on for…