A "smart mob" refers to a group of individuals who come together quickly and spontaneously, often utilizing mobile technology, social media, or other digital communication tools to organize and coordinate their activities. The term was popularized by Howard Rheingold in his book "Smart Mobs: The Next Social Revolution," published in 2002. Smart mobs can form for various purposes, including protests, social movements, collective actions, or even collaborative efforts in non-political contexts.

A list of supersonic aircraft includes various types of military and civilian aircraft that have the capability to exceed the speed of sound (approximately 343 meters per second or 1,125 feet per second at sea level). Here’s a list that highlights some notable supersonic aircraft: ### Military Supersonic Aircraft 1. **Bell X-1** - The first aircraft to break the sound barrier, flown by Chuck Yeager in 1947.

The Bristol Type 223 was a British aircraft design developed in the 1940s by the Bristol Aeroplane Company. It was intended as a medium bomber for use by the Royal Air Force after World War II. The design of the Type 223 featured a twin-engine configuration and was notable for its intended use of advanced aerodynamics and technology for its time. However, the Bristol Type 223 never reached production. As military priorities and technologies evolved post-war, the project was eventually abandoned.

The Convair Model 58-9, also known as the Convair 58-9 or simply Convair 58, is a prototype aircraft developed by Convair, which was a division of General Dynamics. This aircraft was conceived as a potential military transport and reconnaissance platform during the early Cold War era.

The Captive Bubble Method (CBM) is a technique used primarily in the field of materials science, particularly in the study of the properties of porous materials and the measurement of fluid permeability. This method involves creating a controlled environment in which a gas bubble is trapped within a porous medium. The primary goal is to analyze the behavior of the bubble as it interacts with the surrounding material, often to understand how liquids or gases move through porous structures.

Superhydrophilicity refers to the extreme affinity of a surface to water, resulting in a very high contact angle hysteresis and the ability to attract and spread water droplets over the surface. In practical terms, materials exhibiting superhydrophilicity have low contact angles (typically less than 10 degrees), meaning that water droplets spread out almost completely on the surface rather than forming beads.

Surface tension is a physical property of liquids that describes the elastic tendency of a fluid surface. It is the result of the cohesive forces between liquid molecules at the surface, which causes them to contract and minimizes the surface area. Surface tension is typically measured in units of force per unit length, often expressed in dynes per centimeter (dyn/cm) or newtons per meter (N/m). The values of surface tension can vary widely among different liquids.

Helium-3 surface spin echo is a technique used primarily in the field of condensed matter physics to probe the properties of liquid helium-3 (³He) near surfaces, usually in the context of studies involving superfluidity and quantum phenomena. Helium-3 is notable because it is a fermionic isotope of helium, and it can exhibit superfluid behavior at very low temperatures.

A tensiometer is an instrument used to measure the surface tension of liquids. Surface tension is the property of the liquid's surface that makes it behave like a stretched elastic membrane, which arises from the cohesive forces between liquid molecules.

Surface chemistry of paper refers to the study and understanding of the chemical properties and interactions occurring at the surface of paper materials. This area of research is vital because the surface characteristics of paper can significantly influence its functionality, printability, wettability, and interaction with various substances. ### Key Aspects of Surface Chemistry of Paper: 1. **Surface Composition**: - Paper is primarily made from cellulose fibers, which derive from wood pulp or other plant materials.

The Dyakonov–Voigt wave refers to a type of electromagnetic wave that propagates in a birefringent medium. This phenomenon is named after the researchers Mikhail Dyakonov and Ya. P. Voigt, who studied the behavior of waves in certain anisotropic materials. In a birefringent medium, the speed of light differs depending on the polarization state of the light and the direction of propagation.

Surgery in ancient Rome was a developing field that was influenced by earlier practices from ancient Greece and other cultures. Roman surgical practices were somewhat advanced for their time, although they were still limited by the medical knowledge and technology available. ### Key Aspects of Surgery in Ancient Rome: 1. **Surgeons and Medical Professionals**: Roman surgeons known as "chirurgi" (from the Greek term "cheirourgos") were often distinct from physicians.

"Surgery obstruction" generally refers to the blockage or hindrance that can occur in surgical procedures or recovery, though it is not a standard medical term. More commonly, the term "obstruction" is used in a medical context to describe a blockage in a natural passageway in the body, such as the intestines, bile ducts, or blood vessels.

Luis Eduardo González could refer to various individuals, as it is a relatively common name in Spanish-speaking countries. Without additional context, it's difficult to specify who you might be referring to. This name could pertain to a public figure, a professional in a specific field, or a fictional character, among other possibilities.

Stanley Presser is a prominent American sociologist known for his work in survey methodology and research methods. He has contributed significantly to the fields of sociology and social science research, focusing on issues such as survey design, data collection, and the impact of social factors on survey accuracy. His research often explores how question wording, response formats, and other methodological details can affect survey outcomes and the validity of collected data.

Floyd J. Fowler Jr. is an American statistician and social scientist known primarily for his research in survey methodology, public opinion, and the evaluation of social programs. He has contributed significantly to the understanding of how to design and analyze surveys, particularly in the context of public health and social research. Fowler has authored several influential texts and articles, and he has been involved in various academic and applied research projects.

A Sustainable Urban Mobility Plan (SUMP) is a strategic plan that aims to develop sustainable transport systems in urban areas. It outlines measures to enhance mobility while minimizing the impact on the environment and improving quality of life for residents. Here are key components and objectives of a SUMP: 1. **Comprehensive Approach**: SUMPs take a holistic view of urban transport, integrating various modes of mobility (public transport, cycling, walking, car-sharing, etc.) and considering the interconnections between them.

A graphometer is an instrument used for measuring and laying out angles, primarily in surveying and construction. It typically consists of a circular protractor that allows for the precise measurement of angles, often combined with a sighting mechanism for taking bearings and aligning features accurately. Graphometers can be used to determine horizontal and vertical angles, making them useful in various applications such as land surveying, architecture, and engineering projects.

An inclinometer, also known as a tilt sensor or tilt meter, is a device used to measure the angle of tilt or inclination of an object relative to a reference plane, typically the vertical or horizontal plane. Inclinometers can be used in various applications across multiple fields, including: 1. **Geotechnical Engineering**: To monitor the stability of slopes, embankments, and structures, ensuring they do not tilt dangerously or shift in position.

Molecular symmetry refers to the spatial arrangement of atoms in a molecule and how that arrangement can exhibit symmetrical properties. It is a key concept in chemistry that helps in understanding the physical and chemical properties of molecules, including their reactivity, polarity, and interaction with light (such as in spectroscopy).