Quantum efficiency

Ultrafast Electron Microscopy has been demonstrated to be an effective table-top technique for imaging the temporally-evolving dynamics of matter with subparticle spatial resolution on the time scale of atomic motion. A stringent enhancement of the UEM temporal resolution is demanded for recording snapshots of the electron motion which will provide a real-time access to all microscopic motions outside the atomic core and radically change our insight into the workings of the microcosm. Here, we…

In 1964 a physicist by the name of Peter Higgs took some ideas that were floating around at the time, added an insight or two of his own, and proposed that there was an energy field that permeated the entire universe. This energy field is now called the Higgs filed. The reason he proposed this field was that nobody understood why some subatomic particles had a great deal of mass, while others had little and some had none at all. The energy filed that Higgs proposed would interact with the…

1 The Nature All my life through, the new sights of Nature made me rejoice like a child. – Marie Curie (1867-1934), the Polish-French physicist chemist famous for her pioneering research on radioactivity. She was the first person honored with two Nobel Prizes in physics and chemistry. All that is beautiful, delightful and affable in this world, the silence of the night, the loveliness of the morning, the beauty of the day, the melody of the breeze, the fragrances of the flower, the precious…

Research Question Is the Physics in the movie Gravity accurate? Does it adhere to Newton’s laws? Introduction The purpose of this task is to find out if the science behind certain scenes in the movie Gravity is accurate, compared to what Newton’s laws suggest would happen in real life. The film Gravity is largely set in space, 600km above the Earth – according to the movie. Hypothesis The Physics in the movie Gravity is accurate, as it complies with Newton’s Laws of Motion in the context of…

An electron vacancy is created and is further filled by an electron from the higher shell and thus an X-ray is emitted to balance the difference in energy between the two electrons. The detector placed on the energy dispersive spectroscope apparatus measures the number of emitted X-rays and their energies. Energy of the X-ray is characteristics of the element from which X-ray is emitted. A spectrum of the relative counts of the detected X-rays is obtained and evaluated for quantitative…

Results and dissection 3.1 Transition metal complexes of the macrocyclic, H6L Ligand 3.1.1 The macrocyclic, H6L Ligand The physical and analytical data of the macrocyclic, H6L ligand and its transition metal complexes were shown in Table 1. From the investigation, the expected structure of H6L with its possible toutomeric forms can be represented as shown in Figure 1. H6L ligand is highly symmetric under the point group C2v symmetry and can show all the normal modes of vibrations by solving…

INTRODUCTION • Energy is a scalar quantity. • It was first hypothesized by Newton to express kinetic and potential energies. • We cannot observe energy directly, but we can measure it using indirect methods and analyze its value. • Energy may be in different forms, such as potential, kinetic, magnetic or electrical. Potential energy of a system is by virtue of its location with respect to gravitational field. If an object has a mass m, located at elevation h, and acceleration due to gravity is g…

Pierre Bourdieu was born on 1 August 1930 in Denguin, France. He attained a degree in philosophy and was also the gold medalist of the National Centre for Scientific Research. Throughout his life, he contributed to various areas of discussions and involvements that include art and culture, education, language and methodology (Grenfell 2012:12-14). Bourdieu was also influenced by Karl Marx and adapted his theories to elaborate further on capital in regards to class divisions. Similar to Marx,…

J.J Thomson was born in Cheetham Hill, a suburban area in Manchester, England on December 18, 1856. Thomson was a Nobel Prize winning physicist with his research that helped discover the electrons of an atom. J.J Thomson full name was Joseph John Thomson, He was an English physicist and mathematician. Joseph Thomson was considered to be a prodigy at his time, becoming the first to be 14 and attending college. Joseph Thomson’s father was a book seller who intended Thomson to become an engineer.…

Mauritas Cornelis Escher, also known as M. C. Escher, has been a well-known for his spectacular art of illusions. Born on June 17th, 1898 in Leeuwarden, Netherlands, his father wished for him to try to learn to become a carpenter and try other crafting skills (World of Mathematics 1). When he was out of elementary, he did not graduate from secondary school. He went to multiple schools to find his interest and when he was in the School of Architecture Ornamental Design located in Haarlem,…