Acoustic resonance is a phenomenon that occurs when an object or system vibrates at specific frequencies, known as its natural frequencies, in response to an external sound wave or acoustic energy. When the frequency of the external sound wave matches one of these natural frequencies, the amplitude of the vibrations increases significantly, leading to a resonant response.

As of my last knowledge update in October 2021, Archibald Read Richardson did not refer to a widely recognized person or concept. It might be a specific individual's name or could refer to a lesser-known entity or subject that hasn't gained significant public attention. If it's something that emerged more recently, I may not have information on it.

Ancient Greek physicists, often referred to as early natural philosophers, were thinkers and scholars in ancient Greece who sought to understand the nature of the physical world. They laid the foundations for various fields of study, including physics, astronomy, and cosmology, through a combination of observation, reasoning, and speculation. Some of the most notable figures include: 1. **Thales of Miletus (c.

Neal Amundson is an American chemical engineer known for his contributions to the fields of chemical reaction engineering and transport phenomena. He has published extensively on topics such as catalysis, reaction kinetics, and process design. His work often emphasizes the interplay between theory and experimental data, and he has been involved in both academic research and industry applications. Amundson is also known for his role in education and mentorship within the engineering community, having influenced many students and professionals in the field.

As of my last update in October 2021, there is limited information available about someone named Kathy Vivas. It's possible that she could be a private individual, or it could refer to someone who has gained recognition after that time.

Donald Davies was a British computer scientist who is most noted for his work in the field of computer networking and for inventing packet switching. He was born on June 7, 1924, and passed away on May 28, 2009. In the 1960s, he developed the concept of breaking data into smaller packets for transmission over a network, which became a foundational principle for the modern Internet.

Australian women physicists have made significant contributions to the field of physics across various sub-disciplines, including astrophysics, condensed matter physics, and particle physics, among others. Some notable Australian women physicists include: 1. **Lisa Kewley** - An astrophysicist known for her work on the evolution of galaxies and the interstellar medium. 2. **Elizabeth Gillies** - A physicist specializing in quantum mechanics and quantum computing.

The Database of Molecular Motions is a specialized resource that catalogs and provides access to information about the dynamic movements of molecules, primarily proteins, in various biological contexts. This database often contains detailed information about the conformational changes, interactions, and dynamics of biomolecules observed through experimental techniques such as X-ray crystallography, NMR spectroscopy, and molecular dynamics simulations.

Thomas Heath (1861–1940) was a notable British classicist, mathematician, and historian of science, particularly recognized for his work on ancient Greek mathematics. He is best known for his translations and analyses of the works of prominent ancient mathematicians, including Euclid and Archimedes. Heath authored several influential texts, including "A History of Greek Mathematics," which provides a comprehensive overview of the development of mathematics in ancient Greece.

A subcategory is a specific division or subset within a broader category. It helps to further classify or organize items, concepts, or data that share common characteristics. Subcategories allow for a more detailed and granular classification, making it easier to identify, analyze, or search for specific items within a larger group.

Criegee intermediates are a class of reactive species that play a significant role in the chemistry of the atmosphere, particularly in the formation of secondary organic aerosols and in atmospheric processes involving organic compounds. They are formed during the ozonolysis of alkenes, where ozone reacts with a double bond, leading to the cleavage of the carbon-carbon bond. This reaction produces carbonyl compounds and the Criegee intermediate, which is typically a highly reactive carbonyl oxide.

Dmitry Chelkak is known as a Russian mathematician and computer scientist, primarily recognized for his contributions to the fields of probability theory and combinatorial optimization. He has worked on various problems in these areas, including random structures and algorithms.

Dynamic nuclear polarization (DNP) is a technique used in nuclear magnetic resonance (NMR) and electron paramagnetic resonance (EPR) spectroscopy to enhance the sensitivity of these techniques. It involves the transfer of polarization (or alignment) from electron spins to nuclear spins, thereby increasing the observable signal from the nuclei by several orders of magnitude. Here's a brief overview of how DNP works: 1. **Electron Spins:** In the presence of a magnetic field, unpaired electron spins can become polarized.