Quantum chromodynamics

Photon-induced near-field electron microscopy (PINEM), a key UEM technique, is based on the photon-electron interaction [83]. The basic principle of PINEM can be explained as follows: in free space, an electron cannot absorb a quantum of electromagnetic energy because of the lack of energy-momentum conservation. However, in the presence of the nanostructure, the inelastic coupling between the free electrons and photons takes place [138, 139] due to the deceleration of the scattered photons and the

5. Direct imaging of transient structure dynamics and 4D Electron Tomography The development of ultrafast electron microscopy was a revolution step in the field. UEM allows for connect the ultrafast electron diffraction dynamics measurement with the structure morphology of the sample under study. Barwick et al. [82] utilized the UEM to study the structural dynamics and morphological changes in single crystal gold and graphite films. In this study, the structure change of specific area of the sample

Albert Einstein By Paul Nguyen Introduction The person I chose was Albert Einstein, who was born in, Germany March 14, 1879 and died in, New Jersey, April 18th, 1955. The reason why I picked him is because he made a huge impact on the world by changing the world’s thinking about how to determine the speed of light and all his quote. The thing he was well known for was making the theory E=MC2. A quote he said was, “Imagination is more important

The University of Chicago would be the ideal university to explore my interests. Chicago is one of the most resilient cities in the country, which causes the members of its community to be as strong. One of my favorite stories is about the rebuild after the Great Chicago Fire of 1871. After a two day conflagration the city was decimated, but instead of being defeated, they took the destruction as an opportunity to rebuild. Chicago was revitalized into an improved city. The University of Chicago’s

forbidden nature of fluorescence and phosphorescence, respectively. In fluorescence the decay of an electron from the exciton to the ground state is 'allowed' by Pauli's exclusion principle which states that no two identical fermions can occupy the same quantum state simultaneously. Hence the decay of an electron from a

The first unknown is BaCl2, the second unknown is Sr(NO3)2, and the third unknown is KCl. This was determined through observing that each of the respective unknown solutions displayed the most similar color to its respective known solution, meaning that the electrons were making the same energy transfers, therefore being the same solution. From highest to lowest energy emitted, the metal ions are as follows: potassium ions, copper ions, barium ions, sodium ions, calcium ions, strontium ions, and

Dennis Overbye wrote a fascinating article called “Gravitational Waves Detected, Confirming Einstein’s Theory”. The main idea in this article was to tell us how on Thursday, February 11, scientists discovered gravitational waves cause by two black holes colliding a billion light-years away and in addition to the research leading up to the discovery to gravitational waves. The article starts telling the readers how a team of scientists announced on Thursday, February 11, that they had heard and

Honor is high respect or glory. To me honor is a person of great accomplishments and should be highly respected. A person of great honor to me is Sir Timothy John Berners-Lee who was born on June 8th, 1955 in London, England. Berners-Lee’s parents are Mary Lee Woods, who was an english mathematician and a computer programmer, and Conway Berners-Lee, who was also a mathematician and a computer scientist. After completing his A levels at Emmanuel School, he then went to Queens College of the University

James Chadwick was born October 20, 1891 in Cheshire, England. He received the Nobel Peace Prize in 1935 for the discovery of the Neutron. He is the son of John Joseph Chadwick and Anne Mary Knowles. Not much is known about his early childhood, except that he came from a poor family at who struggled to get by at many times. Ever since his early childhood he was very smart, at the age of 11 he won the chance to go to the adored Manchester Grammar School. He was sadly unable to attend because his family

Stage 1 Physics investigation - Parachute Investigation The purpose of this assignment is to work out a parachute design and investigate parachute’s drop time. Parachutes are designed to fall slowly so that the person can land safely to the ground, as shown in figure 1. Parachutes are big, but not heavy and have a larger surface area for air resistance like traps the air from escaping out of it. This is because the air pushes the parachute back up, but the force of gravity pulls the parachute to