Thursday, May 30, 2019

Computational physics


1. Computational physics is the study of scientific problems using computational methods; it combines computer science, physics and applied mathematics to develop scientific solutions to complex problems.

Computational physics complements the areas of theory and experimentation in traditional scientific investigation.  It has been successfully applied to areas such as molecular modeling, electronic circuit design, protein folding, atmospheric science, aerodynamic design and testing, and material science – to name just a few.

In a nutshell: Computational physics will allow you to tackle realistic problems in practically every field of science and engineering.

(Ref: APSU)

2. In a short definition, computational physics is physics that uses computations to solve problems that are hard or impossible to solve analytically and arrive to conclusions.
Computational physics has enormous applications all research going on in physics, such as the study and the development of materials at different scales by using more complex models to simulate and compare with experiments, nuclear reactions simulations, predicting the properties of materials, astrophysics systems simulations like black holes and solar systems and so much more.

(Ref: Achraf Atila, Research Associate at University of Erlangen-Nuremberg)

Wednesday, May 29, 2019

Nuclear Physics


Nuclear physics is a combination of particle physics, quantum physics, and tidbits of other physics to study how the nucleus of an atom (or single subatomic particles) will change under various circumstances.

It is not a molecular physics that studies how two or more atoms will interact electronically at low energies or speeds.

Anything related to radiation sciences, ionizing photons, neutron interactions, nucleus excited states, and high energy materials damage, nucleus structure, fusion, fission, etc. is considered part of nuclear physics. If I had the time, support, and knowledge I would post what I think is the most important figures and graphs below to show what each nuclear physicist knows as each breakthrough finding in this field.

(Ref: RYAN CARROLL, B.A. Nuclear Engineering & Nuclear Materials, University of Wisconsin)

Monday, May 27, 2019

Bio Physics


#Biophysics is the study of physical phenomena and physical processes in living things, on scales spanning molecules, cells, tissues and organisms. Biophysicists use the principles and methods of physics to understand biological systems. It is an interdisciplinary science, closely related to quantitative and systems biology. (Ref: Natures.com)

Includes the development of new computational and experimental tools to tackle the de novo modeling of protein and RNA folds, the high-throughput structure mapping of riboswitches and random RNAs, and the design of self-knotting and self-crystallizing nucleic acids; x-ray scattering on biological molecules to relate structure to function using SSRL and LCLS at SLAC and the APS at Argonne National Lab; theoretical work on application of the Fokker-Planck equation to biochemical reactions and on modification of the Poisson-Boltzmann equations for calculation of thermodynamic quantities for DNA and RNA; the development of advanced positron emission tomography and other imaging modalities; the development of artificial sight and techniques based on laser-tissue interactions; and the application of measurement techniques from physics and the development of technology to improve biological measurements, including micro-fluidic large scale integration and ultra-high throughput DNA sequencing technology. It also includes theoretical studies of population genetics and eco-evolutionary dynamics. (Ref: Standard ford University)

Thursday, May 23, 2019

Engineering Physics


What is Engineering Physics?

Engineering physics or engineering science refers to the study of the combined disciplines of physics, mathematics and engineering, particularly computer, nuclear, electrical, electronic, materials or mechanical engineering. By focusing on the scientific method as a rigorous basis, it seeks ways to apply, design and develop new solutions in engineering. Engineering physics or engineering science degrees are respected academic degrees awarded in many countries. It can be taught at the undergraduate level and is often designed as an honors program at some universities due to the rigorous nature of the academic curriculum which covers a wide spectrum of scientific disciplines. (Jaat Singh, India).

Quantum Physics


What is quantum physics?

Quantum physics is necessary to understand the properties of solids, atoms, nuclei, sub nuclear particles and light. In order to understand these natural phenomena, quantum principles have required fundamental changes in how humans view nature. To many philosophers (Einstein included), the conflict between the fundamental probabilistic features of quantum mechanics and older assumptions about determinism provided a cognitive shock that was even more unsettling that the revised views of space and time brought by special relativity.

The word quantum refers to discreteness, i.e., the existence of individual "lumps" as opposed to a continuum. In Newtonian physics, all quantities are allowed to be continuous. For instance, particles can have any momentum and light can have any frequency. A quantum is a discrete packet of energy, charge, or any other quantity. For instance, one might say that electric charge is quantized in units of 

e=1.602e-19 C. (Or in the case of quarks, units of e/3.)

In the next few pages, we will discuss the fact that all exchanges of energy come in discrete amounts. For instance, when light is absorbed by some material, the energy of the material does not rise continuously, but in discrete jumps. Each jump occurs when the material absorbs a single quantum of light. We will also learn that energy levels ("orbits") of an electron in an atom do not have a continuous range of possible energies, but instead that only discrete "orbits" are possible. This strange behavior is linked to the concept of wave-particle duality. We will see that particles can be described by wave functions that tell the probability of finding the particle.

A new fundamental constant must be introduced to account for all these new phenomena: Planck's constant. It is denoted by h.

h=6.626 X 10-34 J. S

This constant relates wave-like quantities to particle-like ones. For instance, a particle's energy is related to the frequency of its wave function, and a particle's momentum is related to the wavelength of its wave function.

E = hf       P = H/λ

Wednesday, May 22, 2019

Astro Physics


What is Astro Physics?

Astrophysics is literally “space science.” Specifically, it is a branch of space science that applies the laws of physics and chemistry in an attempt to understand the most massive objects in the universe. Obviously, astrophysics is about more than just stars. It’s about understanding planets, galaxies, nebulae, black holes, and all of the other objects drifting in the cosmos. Since these objects directly influenced our evolution (and continue to influence our evolution), understanding their exact mechanisms is of the utmost import.

There are two branches of this discipline: #Cosmology and #Astronomy.

Cosmology is the study of the cosmos at large. For example, a cosmologist may study the origin, evolution, and eventual fate of the universe (things like the big bang, cosmic inflation etc). Astronomy is the study of individual objects or structures (measuring positions of galaxies or galaxy clusters, measuring luminosities, plotting motions of stars, etc.). Astrophysics is the field that creates physical theories for the small to medium-size structures in the universe. If it sounds like they all blend together a bit, it’s because they do. (Ref: Futurism.com)

Wednesday, May 15, 2019

Applied Sciences 2019 - 1

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Larix International is delighted to welcome everyone to Physics 2019 which is scheduled during October 30-31, 2019 in Kuala Lumpur, Malaysia, addresses key issues that is the spine of technology and innovations impacting our lifestyle. Physics 2019 conference aims to improve the cognizance by claiming world through perception, experimentation and hypothesis. Physics 2019 summit solves engineering and medicine problems through exploratory standards. Similarly, Mathematics proves the description of nature and universe done on the basis of the principle of physics. Mathematics 2019 Conference aims to apply the mathematical models to different fields such as science, engineering, business, computer science and industry. There is an immense opportunity to learn and express the views through interactive sessions, poster presentation, and abstract publishing. Eminent Professionals, Scholar and Post Graduate young researcher will share their views and enhance knowledge on broad spectrums of Physics and Mathematics. It will publish the abstracts of the research conducted by the prominent scientist and scholar.

Medical Physics


Medical Physics

Medical Physics is: Defined аѕ thе application оf physics tо thе nееdѕ оf medicine. Launched by 2 Nobel prizes in physics; subsequently 2 Nobel prizes in Medicine or Physiology. Responsible for thе technical foundations оf radiology, radiation oncology, and nuclear medicine. Built on foundation оf physics, but with distinct body оf knowledge and scholarship. Distinct from biophysics. Incorporates both theoretical and experimental methods, but inherently an applied discipline.
(By: Victor Horo, Doctor of Medicine, and University of Cincinnati)

Medical physics is the discipline of physics, particularly specializing in medical applications. In the real world this translates to two branches:
(1) Working in a clinical setting with radiation & radiation exposure, CT Scans, MRI Scans, Ultrasound, PET Scans, SPECT Scans, and various combinations of those scans to create better imaging techniques. (2) Working in industry carrying out research & development in a role very similar to biomedical engineering, creating new scanners or medical devices. (By: Joe Soap)


Tuesday, May 14, 2019

applied sciences


What is the importance of applied sciences?


Applied Sciences take results of research in the "pure sciences" like physics and mathematics, and use them to actually create new technologies, new social processes, new materials and medical treatments, introduce those new scientific concepts into society and exploit them to our advantage.  You don't get trains, planes, or automobiles without engineers, you don't implement new ways of education or new methods to treat diseases based on research, without applied sciences like engineers and doctors.

The BEST applied science is the one you are most interested in, the one you excel in the most.  Which of the primary sciences do you like most? Math, physics, chemistry, biology (especially anatomy/physiology), social sciences, now people will be mad at me because this is not an exhaustive list, but you get the idea.  Almost any scientific discipline has its method of having its science be an applied science, creating actual useful things, ideas, processes, changes to social attitudes, etc. in our modern society. (Ref: Brian Stephenson B.S. Physiology, Pennsylvania State University)

Monday, May 13, 2019

Question 3



What is the difference between Physics and Applied Physics?

The latter is a subset of the former. Applied physics is still “physics”.
Loosely speaking, physics research can be divided into two categories, theoretical and experimental/applied. There are, however, many avenues of research that inhabit the liminal space straddling the two!
Theoretical physics concerns itself primarily with understanding the theoretical frameworks of physical theories, the fundamental postulates and mathematical formulations that underlie the successful models of the physical universe in attempts to gain insight into the nature of physical entities or to develop new ways of thinking about physical problems in order to illuminate nebulous concepts or to unify hitherto disparate ideas within a single framework.
Applied physics engenders a pragmatic approach, largely concerning itself with applying all of this knowledge, in combination with relevant knowledge from other fields, to potentially practicable scenarios for whatever reasons.
(Ref:  Alexander Matthew Peach, PhD, Durham University, UK)

Applied Physics


What is Applied Physics?

Applied physics is the study of physics for a practical purpose, as opposed to physics motived solely for an improved fundamental understanding. This includes technological advances such as the development of electronics, photonics and device physics, or improving practical investigations, such as experimental nuclear physics and experimental particle physics. (Ref: Nature.com)
Applied physics is the application of the science of physics to helping human beings and solving their problems. It differs from engineering because engineers solve well-defined problems. Applied physicists use physics or conduct physics research to develop new technologies or solve engineering problems. (Ref: Physics Today)


Applied Mathematics



What is Applied Mathematics?

“Applied mathematics is a branch of mathematics that deals with mathematical methods that find use in science, engineering, business, computer science, and industry. Thus, applied mathematics is a combination of mathematical science and specialized knowledge. The term "applied mathematics" also describes the professional specialty in which mathematicians work on practical problems by formulating and studying mathematical models. In the past, practical applications have motivated the development of mathematical theories, which then became the subject of study in pure mathematics where abstract concepts are studied for their own sake. The activity of applied mathematics is thus intimately connected with research in pure mathematics.” (Ref: Luigi Morelli, studied Computer Science & Mathematics at Harvard University)

Applied mathematics is a branch of mathematics that deals with mathematical methods that find use in science, engineering, business, computer science, and industry. Thus, applied mathematics is a combination of mathematical science and specialized knowledge. The term "applied mathematics" also describes the professional specialty in which mathematicians work on practical problems by formulating and studying mathematical models. (Ref: Ashish Yadav, M.Sc Mathematics, Chhatrapati Shahu Ji Maharaj University)

Historically, applied mathematics consisted principally of applied analysis, most notably differential equations; approximation theory (broadly construed, to include representations, asymptotic methods, variational methods, and numerical analysis); and applied probability. Applied mathematics is a branch of mathematics that deals with mathematical methods that find use in science, engineering, business, computer science, and industry. Thus, applied mathematics is a combination of mathematical science and specialized knowledge. The term "applied mathematics" also describes the professional specialty in which mathematicians work on practical problems by formulating and studying mathematical models. In the past, practical applications have motivated the development of mathematical theories, which then became the subject of study in pure mathematics where abstract concepts are studied for their own sake. The activity of applied mathematics is thus intimately connected with research in pure mathematics. (Ref: Lyceum Tutorials)