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Black History Portal
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THE JOURNEY THROUGH TIME

Explore Black History

Explore the people, places, events, achievements, struggles and stories that shaped our journey.

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Civil Rights

Movements, leaders, victories and the continuing fight for equality.

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Black Inventors

Innovation, patents, science, technology and world-changing contributions.

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Sports

Pioneers, champions, Negro Leagues, records, activism and excellence.

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People

Meet the people whose lives, choices and achievements shaped the journey.

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Places

Black towns, communities, institutions and places where history happened.

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Events

Moments that changed communities, movements, institutions and the nation.

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MY'STORY

The MOVE Fire

This is a personal recollection on the Move fire on May 13, 1985 Philadelphia police fired thousands of rounds at the MOVE house, city officials approved dropping an explosive device on the roof, the resulting fire was allowed to burn, 11 people—including five children—died, and 61 homes were destroyed. Philadelphia City Council later called it a “brutal attack carried out by the City of Philadelphia on its own citizens” and acknowledged that no individual faced criminal consequences for the bombing. One timeline correction worth preserving for the BHP record: the major previous MOVE-police confrontation was August 8, 1978, about seven years before the bombing, not a year or two earlier. Officer James Ramp was killed, other police and firefighters were wounded, nine MOVE members were later convicted, and television cameras recorded police beating Delbert Africa during his arrest. The 1985 MOVE Commission later specifically criticized city planners for failing to adequately use lessons from that 1978 confrontation. And that actually strengthens the point you’re making: 1985 did not happen without precedent or institutional memory. There had already been a deadly confrontation with MOVE, years of conflict, negotiations and police involvement before Osage Avenue.

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BLACK FACTS
The Truths They Never Taught You...

Wilmington 1898 — An American Coup

Wilmington, North Carolina once had a thriving Black middle class and an elected interracial government. In 1898 white supremacists used violence to overthrow that government, kill Black residents and drive many others from the city.

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Wikipedia

Timeline of fundamental physics discoveries

This timeline lists significant discoveries in physics and the laws of nature, including experimental discoveries, theoretical proposals that were confirmed experimentally, and theories that have significantly influenced current thinking in modern physics. Such discoveries are often a multi-step, multi-person process. Multiple discovery sometimes occurs when multiple research groups discover the same phenomenon at about the same time, and scientific priority is often disputed. The listings below include some of the most significant people and ideas by date of publication or experiment.

Antiquity

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Middle Ages

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16th century

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17th century

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18th century

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19th century

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20th century

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21st century

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See also

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References

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  1. ^ Rovelli, Carlo (2023). Anaximander and the Nature of Science. Allen Lane. ISBN 978-0-241-63504-9.
  2. ^ Rovelli, Carlo (2015). "Aristotle's Physics: A Physicist's Look". Journal of the American Philosophical Association. 1: 23–40. arXiv:1312.4057. doi:10.1017/apa.2014.11.
  3. ^ Russell, Bertrand — History of Western Philosophy (2004) – p. 215
  4. ^ Van der Waerden, B. L. (1987), "The Heliocentric System in Greek, Persian and Hindu Astronomy", Annals of the New York Academy of Sciences, 500 (1): 528, Bibcode:1987NYASA.500..525V, doi:10.1111/j.1749-6632.1987.tb37224.x, S2CID 222087224
  5. ^ Marchant, Jo (2022-10-18). "First known map of night sky found hidden in Medieval parchment". Nature. 610 (7933): 613–614. Bibcode:2022Natur.610..613M. doi:10.1038/d41586-022-03296-1. PMID 36258126. S2CID 252994351.
  6. ^ "Hero's Shortest Path". Harvard Natural Sciences Lecture Demonstrations. Harvard University. Retrieved 2024-02-13. Hero's Principle states that light undergoing a reflection from a plane surface will follow the path of least distance
  7. ^ Pines, Shlomo (1986), Studies in Arabic versions of Greek texts and in mediaeval science, vol. 2, Brill Publishers, p. 203, ISBN 965-223-626-8
  8. ^ American Heritage Dictionary (January 2005). The American Heritage Science Dictionary. Houghton Mifflin Harcourt. p. 428. ISBN 978-0-618-45504-1.
  9. ^ John L. Heilbron (14 February 2003). The Oxford Companion to the History of Modern Science. Oxford University Press. p. 235. ISBN 978-0-19-974376-6.
  10. ^ "Dalton's atomic theory". Oxford Reference. Retrieved 2025-03-12.
  11. ^ Boltzmann, Ludwig (1884). "Ableitung des Stefan'schen Gesetzes, betreffend die Abhängigkeit der Wärmestrahlung von der Temperatur aus der electromagnetischen Lichttheorie" [Derivation of Stefan's law, concerning the dependency of heat radiation on temperature, from the electromagnetic theory of light]. Annalen der Physik und Chemie (in German). 258 (6): 291–294. Bibcode:1884AnP...258..291B. doi:10.1002/andp.18842580616.
  12. ^ Sandage, Allan (1988). "Comment on the 1925 Trumpler Paper on Stellar Evolution". Publications of the Astronomical Society of the Pacific. 100 (625): 293–296. Bibcode:1988PASP..100..293S. doi:10.1086/132169. ISSN 0004-6280. JSTOR 40679099.
  13. ^ "What are stars made of? A century ago, this woman found out—and changed physics forever". National Geographic. January 1, 2025. Retrieved 2025-03-17.
  14. ^ Bethe, H. A. (1939). "Energy Production in Stars". Physical Review. 55 (5): 434–456. Bibcode:1939PhRv...55..434B. doi:10.1103/PhysRev.55.434. PMID 17835673.
  15. ^ Gell-Mann, Murray (15 March 1961). The Eightfold Way: A theory of strong interaction symmetry (Report). Office of Scientific and Technical Information (OSTI). doi:10.2172/4008239
  16. ^ Ne'eman, Y. (August 1961). "Derivation of strong interactions from a gauge invariance". Nuclear Physics. 26 (2). Amsterdam: North-Holland Publishing Co.: 222–229. Bibcode:1961NucPh..26..222N. doi:10.1016/0029-5582(61)90134-1.
  17. ^ Bekenstein, A. (1972). "Black holes and the second law". Lettere al Nuovo Cimento. 4 (15): 99–104. doi:10.1007/BF02757029. S2CID 120254309.
  18. ^ S. W. Hawking. (1975) "Particle creation by black holes." Comm. Math. Phys. 43 (3) 199 – 220
  19. ^ Rafelski, Johann (2020). "Discovery of Quark-Gluon Plasma: Strangeness Diaries". The European Physical Journal Special Topics. 229 (1): 1–140. arXiv:1911.00831. Bibcode:2020EPJST.229....1R. doi:10.1140/epjst/e2019-900263-x. ISSN 1951-6355.
  20. ^ "New State of Matter created at CERN". CERN. Retrieved 2025-05-22.
  21. ^ CMS collaboration (2012). "Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC". Physics Letters B. 716 (1): 30–61. arXiv:1207.7235. Bibcode:2012PhLB..716...30C. doi:10.1016/j.physletb.2012.08.021.
  22. ^ ATLAS collaboration (2012). "Observation of a New Particle in the Search for the Standard Model Higgs Boson with the ATLAS Detector at the LHC". Physics Letters B. 716 (1): 1–29. arXiv:1207.7214. Bibcode:2012PhLB..716....1A. doi:10.1016/j.physletb.2012.08.020. S2CID 119169617.
  23. ^ Rini, Matteo (June 29, 2023). "Researchers Capture Gravitational-Wave Background with Pulsar "Antennae"". Physics Magazine. Vol. 16. p. 118. Bibcode:2023PhyOJ..16..118R. doi:10.1103/Physics.16.118. Retrieved 2024-02-13. Four PTA collaborations have delivered evidence for a stochastic background of nanohertz gravitational waves
  24. ^ Palivela, Ananya (June 30, 2023). "IceCube creates first image of Milky Way in neutrinos". Astronomy.com. Retrieved 2024-02-13. IceCube Neutrino Observatory, this array has now allowed astronomers to image the Milky Way — not using light, but particles
  25. ^ "Dark Energy May Be Weakening, Major Astrophysics Study Finds". DESI. Lawrence Berkeley National Laboratory. April 10, 2024.
  26. ^ "First Results from DESI Make the Most Precise Measurement of Expanding Universe". Berkeley Lab News Center. Lawrence Berkeley National Laboratory. April 4, 2024.
  27. ^ "'A paradigm change': black hole spotted that may have been created moments after big bang". The Guardian. September 2, 2025.
  28. ^ "NASA's Webb Finds Possible 'Direct Collapse' Black Hole". NASA Science. July 15, 2025.
  29. ^ "A Single, 'Naked' Black Hole Rewrites the History of the Universe". Quanta Magazine. September 12, 2025.


Source: Wikipedia. Article content is retrieved live through the MediaWiki API.

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Wikipedia

Multiple discovery

The concept of multiple discovery (also known as simultaneous invention) is the hypothesis that most scientific discoveries and inventions are made independently and more or less simultaneously by multiple scientists and inventors. The concept of multiple discovery opposes a traditional view—the "heroic theory" of invention and discovery. Multiple discovery is analogous to convergent evolution in biological evolution.

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Wikipedia

Multiple Sclerosis Discovery Forum

Multiple Sclerosis Discovery Forum (MSDF) is a non-profit online resource created to speed progress toward a cure for multiple sclerosis (MS) and other demyelinating diseases by enabling faster sharing of information and free discussion among MS researchers in academia, industry, and the clinic. Launched in April 2012, MSDF deploys science journalism as a primary tool in fostering communication and collaboration among MS researchers from all corners of the scientific enterprise. The site combines news and features with technical resources, such as a weekly editor-curated index of MS-related papers from PubMed and a database with the latest scientific and regulatory information about drugs being marketed or in the pipeline for treatment of MS. Other resources include interactive data visualizations, meetings and events, and discussion forums. MSDF is modeled after online scientific community Alzheimer Research Forum (AlzForum). Since 1996, AlzForum has become a location for information and interaction for investigators working on age-related neurodegeneration. More recently, similar independent neutral Web-based neurology disease forums have followed, including Schizophrenia Research Forum and Pain Research Forum. As with its sister forums, all content on MSDF is provided free of charge to the research community, and editorial independence from sponsors and donors is strictly maintained. MSDF articles have unique digital object identifiers (DOI) to provide stable linking over time and to facilitate discussion and altmetrics tracking of scientific articles in social media forums, s. MSDF articles are indexed by Google News. MSDF covers the plausible but unproven questions of whether the dozen new anti-inflammatory therapies can be deployed more effectively against disease progression, as well as the upsurge in research to understand the pathological mechanisms and treatments for progressive MS. Related demyelinating conditions include neuromyelitis optica (NMO), transverse myelitis, acute disseminated encephalomyelitis, and optic neuritis. Their misdiagnosis as MS can lead to inappropriate and even harmful therapeutic choices, such as was discovered with NMO, now clearly understand to be a different disease. MSDF is a joint activity of Accelerated Cure Project for Multiple Sclerosis (ACP) and the MassGeneral Institute for Neurodegenerative Disease (MIND).

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Wikipedia

Timeline of fundamental physics discoveries

This timeline lists significant discoveries in physics and the laws of nature, including experimental discoveries, theoretical proposals that were confirmed experimentally, and theories that have significantly influenced current thinking in modern physics. Such discoveries are often a multi-step, multi-person process. Multiple discovery sometimes occurs when multiple research groups discover the same phenomenon at about the same time, and scientific priority is often disputed. The listings below include some of the most significant people and ideas by date of publication or experiment.

MORE →
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Wikipedia

False discovery rate

In statistics, the false discovery rate (FDR) is a method of conceptualizing the rate of type I errors in null hypothesis testing when conducting multiple comparisons. FDR-controlling procedures are designed to control the FDR, which is the expected proportion of "discoveries" (rejected null hypotheses) that are false (incorrect rejections of the null). Equivalently, the FDR is the expected ratio of the number of false positive classifications (false discoveries) to the total number of positive classifications (rejections of the null). The total number of rejections of the null include both the number of false positives (FP) and true positives (TP). Simply put, FDR = FP / (FP + TP). FDR-controlling procedures provide less stringent control of Type I errors compared to family-wise error rate (FWER) controlling procedures (such as the Bonferroni correction), which control the probability of at least one Type I error. Thus, FDR-controlling procedures have greater power, at the cost of increased numbers of Type I errors.

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TOPIC OF THE DAY

Greenwood / Black Wall Street

Before the 1921 destruction of Tulsa’s Greenwood District, Black residents had created a remarkable center of business and community life. The district included stores, professional offices, entertainment venues and homes owned by Black citizens. Understanding Greenwood means learning what was built—not only what was burned.

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TRIVIA QUESTION OF THE DAY

What prosperous Tulsa district became widely known as “Black Wall Street”?

The Greenwood District.