Henry J. Kelley may refer to a specific individual or organization, but without more context, it's difficult to provide a precise answer. If you are referring to a person, he could be a historical figure, an author, a scholar, or someone in business, among other possibilities. If it is an organization, it might relate to a company or institution with that name.

Jerrold E. Marsden (1942–2020) was a prominent American mathematician known for his contributions to the fields of applied mathematics and mathematical physics. He was particularly noted for his work in dynamical systems, fluid mechanics, and the mathematical formulation of classical mechanics. Marsden authored several influential textbooks and research papers, often collaborating with other mathematicians and scientists.

John Hopcroft is a prominent American computer scientist known for his significant contributions to the fields of computer science, particularly in algorithms, automata theory, and graph theory. He is best known for his work in the development of efficient algorithms, and he co-authored the influential textbook "Introduction to Automata Theory, Languages, and Computation" with Rajeev Motwani and Jeffrey D. Ullman.

Kristin Lauter is a prominent mathematician known for her work in the fields of algebraic geometry, number theory, and cryptography. She is particularly recognized for her contributions to the study of elliptic curves and their applications in cryptography. Lauter has held academic positions, including being a professor, and has been involved in various research initiatives and collaborations within the mathematical community.

Leonard Schulman is an American computer scientist known for his contributions to the fields of theoretical computer science, particularly in areas such as algorithms, cryptography, and computational complexity. He has published numerous papers and has been involved in various research projects. Schulman is also known for his work on error-correcting codes and the computational aspects of machine learning.

Liliana Borcea is a mathematician known for her work in the fields of applied mathematics, particularly in dynamical systems and mathematical biology. She has made contributions to various areas, including the mathematical modeling of biological processes and applications of bifurcation theory.

Lois Curfman McInnes is known for her contributions to the fields of mathematics and engineering, particularly in relation to applied mathematics and computational methods. She has been recognized for her work in areas such as numerical analysis and mathematical modeling. In addition to her research, McInnes has also been involved in education and mentorship, influencing the next generation of mathematicians and engineers.

Mark A. Lewis might refer to a person with contributions in various fields, such as academia, science, or the arts. However, without specific context, it's challenging to determine which Mark A. Lewis you are referring to, as there may be multiple individuals with that name. If you have more specific information about the field or context in which Mark A.

The breadboard of photonics!

For example, that is how most modern microscopes are prototyped, see for example Video "Two Photon Microscopy by Nemonic NeuroNex (2019)".

This is kind of why they are also sometimes called "optical breadboarbds", since breadboards are what we use for early prototyping in electronics. Wikipedia however says "optical breadboard" is a simpler and cheaper type of optical table with less/no stabilization.

Clear experiment diagram which explains that the droplet mass determined with Stoke's law:

American Scientific, LLC sells a ready made educational kit for this: www.youtube.com/watch?v=EV3BtoMGA9c

Here's some actual footage of a droplet on a well described more one-off setup:

This American video likely from the 60's shows it with amazing contrast: www.youtube.com/watch?v=_UDT2FcyeA4

composite particle made up of an odd number of elementary particles.

The most important examples by far are the proton and the neutron.

"Barys" means "heavy" in Greek, because protons and neutrons was what made most of the mass of known ordinary matter, as opposed notably to electrons.

Baryons can be contrasted with:

The Quadratic Integrate-and-Fire (QIF) model is a mathematical representation used to describe the behavior of a neuron. It builds upon the simpler Integrate-and-Fire (IF) model by incorporating quadratic nonlinearity to more accurately represent the dynamics of action potentials (spikes) in neurons.

The term "small control property" is often discussed in the context of functional analysis and operator theory. It pertains to a specific characteristic of certain types of Banach spaces or functional spaces. A space is said to have the small control property if, roughly speaking, every bounded linear operator from this space into a Hilbert space can be approximated by finite-rank operators in a certain way.