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A timeline of guns, missiles, and rockets
\"In ancient times, warriors threw spears or fired arrows from bows. Today soldiers shoot bullets from machine guns that fire up to 3,000 times a minute. Follow the steps in the process that led from spears and cannonballs to armor-piercing rockets and missiles that can strike targets on the other side of the world.\"-- Provided by publisher.
Book
The Columbia Guide to Hiroshima and the Bomb
Few aspects of American military history have been as vigorously debated as Harry Truman's decision to use atomic bombs against Japan. In this carefully crafted volume, Michael Kort describes the wartime circumstances and thinking that form the context for the decision to use these weapons, surveys the major debates related to that decision, and provides a comprehensive collection of key primary source documents that illuminate the behavior of the United States and Japan during the closing days of World War II.
Kort opens with a summary of the debate over Hiroshima as it has evolved since 1945. He then provides a historical overview of thye events in question, beginning with the decision and program to build the atomic bomb. Detailing the sequence of events leading to Japan's surrender, he revisits the decisive battles of the Pacific War and the motivations of American and Japanese leaders. Finally, Kort examines ten key issues in the discussion of Hiroshima and guides readers to relevant primary source documents, scholarly books, and articles.
eBook
ATMOSPHERIC RADIOCARBON FOR THE PERIOD 1950–2019
This paper presents a compilation of atmospheric radiocarbon for the period 1950–2019, derived from atmospheric CO2 sampling and tree rings from clean-air sites. Following the approach taken by Hua et al. (2013), our revised and extended compilation consists of zonal, hemispheric and global radiocarbon (14C) data sets, with monthly data sets for 5 zones (Northern Hemisphere zones 1, 2, and 3, and Southern Hemisphere zones 3 and 1–2). Our new compilation includes smooth curves for zonal data sets that are more suitable for dating applications than the previous approach based on simple averaging. Our new radiocarbon dataset is intended to help facilitate the use of atmospheric bomb 14C in carbon cycle studies and to accommodate increasing demand for accurate dating of recent (post-1950) terrestrial samples.
Journal Article
Solar Ultraviolet Bursts
The term “ultraviolet (UV) burst” is introduced to describe small, intense, transient brightenings in ultraviolet images of solar active regions. We inventorize their properties and provide a definition based on image sequences in transition-region lines. Coronal signatures are rare, and most bursts are associated with small-scale, canceling opposite-polarity fields in the photosphere that occur in emerging flux regions, moving magnetic features in sunspot moats, and sunspot light bridges. We also compare UV bursts with similar transition-region phenomena found previously in solar ultraviolet spectrometry and with similar phenomena at optical wavelengths, in particular Ellerman bombs. Akin to the latter, UV bursts are probably small-scale magnetic reconnection events occurring in the low atmosphere, at photospheric and/or chromospheric heights. Their intense emission in lines with optically thin formation gives unique diagnostic opportunities for studying the physics of magnetic reconnection in the low solar atmosphere. This paper is a review report from an International Space Science Institute team that met in 2016–2017.
Journal Article
Erratum: Ilyas and Athwal (2021). De-Radicalisation and Humanitarianism in Indonesia. Social Sciences 10: 87
The authors wish to make the following correction to their paper [...]
Journal Article
MAGYARORSZÁG AKNA- ÉS LŐSZERMENTESÍTÉSÉNEK TÖRTÉNETE. A KEZDETEK 1944 - 1948
A II. Világháború során 1944. szeptember 23. és 1945. április 4-e közötti több mint félév alatt a szembenálló felek mintegy egymilliónyi katonája vívta Magyarország területén az elkeseredett ütközetek sorát. A háború következtében Magyarország megelőző történelmében soha nem látott mennyiségű akna, bomba és más robbanószerkezet került alkalmazásra. Ezek többsége felrobbanva a szembenálló felekből és a polgári lakosságból közel félmillió embert, több tízezer lakó- és középületet, ipari létesítményt, közlekedési és közműtárgyat semmisített meg.
Journal Article