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Albert Baez
Albert Vinicio Báez (; November 15, 1912 – March 20, 2007) was a Mexican-American physicist and the father of singers Joan Baez and Mimi Fariña, and an uncle of John C. Baez. He made important contributions to the early development of X-ray microscopes and later X-ray telescopes. Early life Albert Báez was born in Puebla, Mexico in 1912 to Alerto B. Báez and Thalia Báez. His father was a Methodist minister and his mother was a social worker for the YWCA. Albert was four when his father moved his family to the United States, first to Texas for a year and then to New York City. Albert, his sister Mimi and brother Peter were raised in Brooklyn where his father founded the First Spanish Methodist Church. New York. During his youth, Baez contemplated becoming a minister, but he followed his interests in mathematics and physics instead. Báez earned degrees in mathematics and physics from Drew University (BS, 1933) and mathematics from Syracuse University (MS, 1935). He ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Puebla, Puebla
Puebla de Zaragoza (; nah, Cuetlaxcoapan), formally Heroica Puebla de Zaragoza, formerly Puebla de los Ángeles during colonial times, or known in English simply as Puebla, is the seat of Puebla Municipality. It is the capital and largest city of the state of Puebla, and the fourth largest city in Mexico, after Mexico City, Monterrey, and Guadalajara. A viceregal era planned city, it is located in the southern part of Central Mexico on the main route between Mexico City and Mexico's main Atlantic port, Veracruz—about east southeast of Mexico City and about west of Veracruz. The city was founded in 1531 in an area called Cuetlaxcoapan, which means "where serpents change their skin", between two of the main indigenous settlements at the time, Tlaxcala and Cholula. This valley was not populated in the 16th century, as in the pre-Hispanic period this area was primarily used for the "flower wars" between a number of populations. Due to its history and architectural styles rang ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
YWCA
The Young Women's Christian Association (YWCA) is a nonprofit organization with a focus on empowerment, leadership, and rights of women, young women, and girls in more than 100 countries. The World office is currently based in Geneva, Switzerland, and the nonprofit is headquartered in Washington, DC. The YWCA is independent of the YMCA, but a few local YMCA and YWCA associations have merged into YM/YWCAs or YMCA-YWCAs and belong to both organizations, while providing the programs from each. Governance Structure The World Board is the governing body of the World YWCA, and includes representatives from all regions of the global YWCA movement. The World Council is the legislative authority and governing body of the World YWCA. The 20 women who serve on the World Board are elected during the World Council, which meets every four years to make decisions that impact the entire movement. This includes the World YWCA’s policy, constitution, strategic direction, and budgets. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cold War
The Cold War is a term commonly used to refer to a period of geopolitical tension between the United States and the Soviet Union and their respective allies, the Western Bloc and the Eastern Bloc. The term '' cold war'' is used because there was no large-scale fighting directly between the two superpowers, but they each supported major regional conflicts known as proxy wars. The conflict was based around the ideological and geopolitical struggle for global influence by these two superpowers, following their temporary alliance and victory against Nazi Germany and Imperial Japan in 1945. Aside from the nuclear arsenal development and conventional military deployment, the struggle for dominance was expressed via indirect means such as psychological warfare, propaganda campaigns, espionage, far-reaching embargoes, rivalry at sports events, and technological competitions such as the Space Race. The Western Bloc was led by the United States as well as a number of other First W ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synchrotron
A synchrotron is a particular type of cyclic particle accelerator, descended from the cyclotron, in which the accelerating particle beam travels around a fixed closed-loop path. The magnetic field which bends the particle beam into its closed path increases with time during the accelerating process, being ''synchronized'' to the increasing kinetic energy of the particles. The synchrotron is one of the first accelerator concepts to enable the construction of large-scale facilities, since bending, beam focusing and acceleration can be separated into different components. The most powerful modern particle accelerators use versions of the synchrotron design. The largest synchrotron-type accelerator, also the largest particle accelerator in the world, is the Large Hadron Collider (LHC) near Geneva, Switzerland, built in 2008 by the European Organization for Nuclear Research (CERN). It can accelerate beams of protons to an energy of 6.5 tera electronvolts (TeV or 1012 eV). Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zone Plate
A zone plate is a device used to focus light or other things exhibiting wave character.G. W. Webb, I. V. Minin and O. V. Minin, “Variable Reference Phase in Diffractive Antennas”, ''IEEE Antennas and Propagation Magazine'', vol. 53, no. 2, April. 2011, pp. 77-94. Unlike lenses or curved mirrors, zone plates use diffraction instead of refraction or reflection. Based on analysis by French physicist Augustin-Jean Fresnel, they are sometimes called Fresnel zone plates in his honor. The zone plate's focusing ability is an extension of the Arago spot phenomenon caused by diffraction from an opaque disc. A zone plate consists of a set of concentric rings, known as Fresnel zones, which alternate between being opaque and transparent. Light hitting the zone plate will diffract around the opaque zones. The zones can be spaced so that the diffracted light constructively interferes at the desired focus, creating an image there. Design and manufacture To get constructive interference ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Medicine
Medicine is the science and practice of caring for a patient, managing the diagnosis, prognosis, prevention, treatment, palliation of their injury or disease, and promoting their health. Medicine encompasses a variety of health care practices evolved to maintain and restore health by the prevention and treatment of illness. Contemporary medicine applies biomedical sciences, biomedical research, genetics, and medical technology to diagnose, treat, and prevent injury and disease, typically through pharmaceuticals or surgery, but also through therapies as diverse as psychotherapy, external splints and traction, medical devices, biologics, and ionizing radiation, amongst others. Medicine has been practiced since prehistoric times, and for most of this time it was an art (an area of skill and knowledge), frequently having connections to the religious and philosophical beliefs of local culture. For example, a medicine man would apply herbs and say prayers for healing, o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microscope
A microscope () is a laboratory instrument used to examine objects that are too small to be seen by the naked eye. Microscopy is the science of investigating small objects and structures using a microscope. Microscopic means being invisible to the eye unless aided by a microscope. There are many types of microscopes, and they may be grouped in different ways. One way is to describe the method an instrument uses to interact with a sample and produce images, either by sending a beam of light or electrons through a sample in its optical path, by detecting photon emissions from a sample, or by scanning across and a short distance from the surface of a sample using a probe. The most common microscope (and the first to be invented) is the optical microscope, which uses lenses to refract visible light that passed through a thinly sectioned sample to produce an observable image. Other major types of microscopes are the fluorescence microscope, electron microscope (both the transmi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Society Of Hispanic Physicists
The National Society of Hispanic Physicists (NSHP) was established in 1996 with the goal of promoting the participation and advancement of Hispanic-Americans in physics and celebrating the contributions of Hispanic-American physicists to the study and teaching of physics. Brief history A grant from the Sloan Foundation was awarded to the Pan-American Association for Physics to establish the National Society of Hispanic Physicists (NSHP). The Founding Meeting of the Society was held in Austin at the University of Texas in April, 1996 and the first annual meeting was held in Houston, Texas in October 1997. The ''US-Mexico Workshop on Teaching Introductory Physics'', the first major project undertaken by the Society, was held later that year in Monterrey, Mexico. The project was a bilingual joint venture between the NSHP and the Instituto Tecnológico y de Estudios Superiores de Monterrey (ITESM) to explore the goals of the introductory physics sequence and recent pedagogical developme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paul Kirkpatrick
Paul H. Kirkpatrick (July 21, 1894 – December 26, 1992) was co-inventor of the X-ray reflection microscope, and the imaging technique he and his graduate student Albert Baez developed is still used, particularly in astronomy to take X-ray pictures of galaxies and in medicine.Paul Kirkpatrick, inventor of the X-ray microscope, dead at 98 . Obituary, Stanford University, 1992 An award in his name was established in the Physics Department at Stanford University
Stanford University, officially Leland Stanford Junior University, is a private research university in Stanford, California. The campus occupies , among the largest in ...
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Doctorate
A doctorate (from Latin ''docere'', "to teach"), doctor's degree (from Latin ''doctor'', "teacher"), or doctoral degree is an academic degree awarded by universities and some other educational institutions, derived from the ancient formalism ''licentia docendi'' ("licence to teach"). In most countries, a research degree qualifies the holder to teach at university level in the degree's field or work in a specific profession. There are a number of doctoral degrees; the most common is the Doctor of Philosophy (PhD), awarded in many different fields, ranging from the humanities to scientific disciplines. In the United States and some other countries, there are also some types of technical or professional degrees that include "doctor" in their name and are classified as a doctorate in some of those countries. Professional doctorates historically came about to meet the needs of practitioners in a variety of disciplines. Many universities also award honorary doctorates to individuals d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California
California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territories of the United States by population, most populous U.S. state and the List of U.S. states and territories by area, 3rd largest by area. It is also the most populated Administrative division, subnational entity in North America and the 34th most populous in the world. The Greater Los Angeles area and the San Francisco Bay Area are the nation's second and fifth most populous Statistical area (United States), urban regions respectively, with the former having more than 18.7million residents and the latter having over 9.6million. Sacramento, California, Sacramento is the state's capital, while Los Angeles is the List of largest California cities by population, most populous city in the state and the List of United States cities by population, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quakers
Quakers are people who belong to a historically Protestant Christian set of denominations known formally as the Religious Society of Friends. Members of these movements ("theFriends") are generally united by a belief in each human's ability to experience the light within or see "that of God in every one". Some profess a priesthood of all believers inspired by the First Epistle of Peter. They include those with evangelical, holiness, liberal, and traditional Quaker understandings of Christianity. There are also Nontheist Quakers, whose spiritual practice does not rely on the existence of God. To differing extents, the Friends avoid creeds and hierarchical structures. In 2017, there were an estimated 377,557 adult Quakers, 49% of them in Africa. Some 89% of Quakers worldwide belong to ''evangelical'' and ''programmed'' branches that hold services with singing and a prepared Bible message coordinated by a pastor. Some 11% practice ''waiting worship'' or ''unprogramme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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