This animation highlighting the phases of the Moon was released by the Scientific Visualization Studio at NASA Goddard Space Flight Center.
Search Results (39)
The complete Abraham Lincoln Papers at the Library of Congress consists of approximately 20,000 documents. The collection is organized into three "General Correspondence" series which include incoming and outgoing correspondence and enclosures, drafts of speeches, and notes and printed material. Most of the 20,000 items are from the 1850s through Lincoln's presidential years, 1860-65. Treasures include Lincoln's draft of the Emancipation Proclamation, his March 4, 1865, draft of his second Inaugural Address, and his August 23, 1864, memorandum expressing his expectation of being defeated for re-election in the upcoming presidential contest. The Lincoln Papers are characterized by a large number of correspondents, including friends and associates from Lincoln's Springfield days, well-known political figures and reformers, and local people and organizations writing to their president. In its online presentation, the Abraham Lincoln Papers comprises approximately 61,000 images and 10,000 transcriptions
The Ad*Access Project presents images and database information for over 7,000 advertisements printed in U.S. and Canadian newspapers and magazines between 1911 and 1955. Ad*Access concentrates on five main subject areas: Radio, Television, Transportation, Beauty and Hygiene, and World War II, providing a coherent view of a number of major campaigns and companies through images preserved in one particular advertising collection available at Duke University.
The collection consists of 4,500 photographs documenting natural environments, ecologies, and plant communities in the United States at the end of the nineteenth and the beginning of the twentieth century. Produced between 1891 and 1936, these photographs provide an overview of important representative natural landscapes across the nation. They demonstrate the character of a wide range of American topography, its forestation, aridity, shifting coastal dune complexes, and watercourses. Among the natural features these images document are ecological settings such as dunes, bogs, forests, and deserts; individual plants from the Ponderosa pine and birch to grasses and mosses; landscape features like the Grand Canyon, Lake Superior, and the Sierra Nevada; and the consequences of natural and human changes to the environment ranging from erosion and floods to irrigation and lumbering.
- History, Law, Politics
- Life Science
- Forestry and Agriculture
- Space Science
- Material Type:
- Primary Source
- AMSER: Applied Math and Science Education Repository
- Library of Congress
- University Corporation for Atmospheric Research
- Provider Set:
- AMSER: Applied Math and Science Education Repository
- American Memory
- DLESE Community Collection
America on the Move explores the role of transportation in American History. It looks at how transportation transformed American communities, cities, and suburbs during the 19th and 20th centuries.
This Weddell Seal Science website is produced by the Weddell Seal Population Ecology Project based at the Montana State University - Bozeman to present information, video files and multimedia, and social media about the Project's Weddell research in Antarctica. This Weddell Seal Project is funded by the National Science Foundation (NSF), and assisted by the United States Antarctic Program. (USAP). The purpose of the website is to function as a central web portal to make available to the general public, educators and students numerous assets including articles, a seasonal Antarctic field blog, select videos and multimedia on the project, Weddell seals, and the work of the researchers studying the population and mass dynamics of Antarctica's Weddell seals.
This collection contains documents about arms control, nuclear deterrence and nuclear proliferation. Principle documents include: The Baruch Plan, Churchill' s "Iron Curtain" Speech, Eisenhower's Atoms for Peace Speech, Sec. of Defense McNamara's "No Cities" Speech, Sec. of Defense McNamara's "Mutual Deterrence" Speech. The collection also contains documents about recent nuclear events in North Korea, India and Pakistan.
Asian Journal of Chemistry and Pharmaceutical Science (AJCPS) is an open access international journal publishing original peer-reviewed research articles. The journal is a Quarterly Publication.
This collection contains photographs from the National Atomic Museum, the Titan Missile Museum, the Enola Gay exhibit and the Imperial War Museum.
These documents chronicle the events of the Cuban Missile Crisis. On October 15, 1962, the Soviet Union was discovered attempting to install nuclear missiles in Cuba. These missiles would have been capable of quickly reaching the United States. President Kennedy responded with a naval blockade. After several days of increasing tensions, the Soviet Union finally agreed to remove the missiles.
These documents chronicle the United States? effort in developing the hydrogen bomb and the effects of the Soviet Union's atomic-bomb development. Documents include: ?General Advisory Committee's Majority and Minority Reports on Building the H-Bomb? and ?Comments on The History of the H-Bomb? by Hans A. Bethe.
A militarily plausible nuclear attack, even "limited," could be expected to kill people and to inflict economic damage on a scale unprecedented in American experience; a large-scale nuclear exchange would be a calamity unprecedented in human history. This collection of documents includes: "The Atomic Bombings of Hiroshima and Nagasaki" by The Manhattan Engineer District (1946), "The Effects of Nuclear War, Worldwide Effects of Nuclear War" by U.S. Arms Control and Disarmament Agency, and "The Effects of Nuclear Weapons" by Samuel Glasstone and Philip J. Dolan.
This collection of documents chronicles milestones in the development of a ballistic-missile defense. These include: President Reagan's ?SDI? Speech (excerpts), ?Foreword Written for a Report on the Strategic Defense Initiative,? and President Bush's ?Address to the American People about Ballistic Missile Defense.?
At the height of McCarthyism, Oppenheimer's politics during the 1930s came under scrutiny and ultimately led to his undoing at the hands of the Atomic Energy Commission in 1953. He asked for a security hearing to review the charges, which went on for four weeks and heard testimony from 40 witnesses including Oppenheimer. Documents include: ?Testimony in the Matter of J. Robert Oppenheimer - Gen. Leslie Groves, Hans Bethe, George F. Kerman, I. I. Rabi, Edward Teller,? and ?Decision and Opinions of the United States Atomic Energy Commission in the Matter of Dr. J. Robert Oppenheimer.?
Weddell seals have a large repertoire of very strange vocalizations–everything from chugs, chirps, trills, and whistles to what sounds like something from outer space. Weddells make these sounds both underwater and on top of the sea ice. Our soundtrack composer Steve Perez used hydrophone recordings the project obtained under NMFS Permit 1032-1917 to interweave with guitar and midi to create an other-worldly composition consisting of some of those Weddell seal vocalizations recorded by the Weddell Population Ecology project. Video field footage obtained by project members Eric Boyd and Terrill Paterson under NMFS Permit 17236. Video editing and production by Mary Lynn Price. Learn more at WeddellSealScience.com!
Documents about the atomic boming of Hiroshima and Nagasaki. These include: Potsdam Declaration, White House Press Release on Hiroshima, an Eyewitness Account of Atomic Bomb Over Nagasaki, Eyewitness Account of Hiroshima By Father John A. Siemes, The Voice of Hibakusha, The Atomic Bombings of Hiroshima and Nagasaki by The Manhattan Engineer District, The Yields of the Hiroshima and Nagasaki Nuclear Explosions , On My Participation In The Atom Bomb Project - Albert Einstein, and Truman's Reflections on the Atomic Bombings.
Historic Pittsburgh, an extensive digital resource created at the University of Pittsburgh, offers both an entry point and substantive classroom resources for teachers of American History at various grade and university levels. This Web site enables access to historic material held by the University of Pittsburgh's University Library System, the Library & Archives at the Heinz History Center, Carnegie Museum of Art, Chatham College Archives, Pittsburgh History & Landmarks Foundation, and Point Park University Archives. The project represents a model of cooperation between libraries, museums and institutions of higher learning in providing centralized access to selections of their respective historic materials.The books allows teachers to focus on historical currents, social movements and individual historical personalities, both famous and less well-known. Thousands of photographs offer students at all levels opportunities for observation, comparison and inference. The decennial census contains a wealth of information about the occupational, racial, gender, family, and residential structure of a key industrializing region, from pre-Civil War years to the Gilded Age. The chronology captures significant events that took place in Pittsburgh throughout three centuries.
This section features a collection of some of the documents and reports that have shaped the atomic age. Categories include: The Nuclear Age Begins, The Manhattan Project, The Trinity Test, The Bombing of Hiroshima & Nagasaki, Developing the Hydrogen Bomb, The Oppenheimer Affair, Cuban Missile Crisis, Arms Control, Deterrence and Nuclear Proliferation, and Missile Defense.
These documents chronicle the establishment of a secret program?which came to be known as the Manhattan Project?to develop an atomic bomb, a powerful explosive nuclear weapon. Principal documents include: ?The Quebec Agreement,? The Roosevelt-Churchill "Tube Alloys" Deal, Interim Committee's Report, ?Report of the Committee on Political and Social Problems (The Franck Report), and ?Atomic Energy for Military Purposes (The Smyth Report).?
Presented by UW-Milwaukee, this collection includes images of Milwaukee neighborhoods and provides documentation of the city's development from the mid-1880s to the early 1990s.
These early documents chronicle the beginnings of the atomic age: Meitner and Frisch's ?Nature Article: Disintegration of Uranium by Neutrons,? Einstein's Letter to President Roosevelt, President Roosevelt's response to Dr. Einstein, Frisch-Peierls Memorandum, and ?The MAUD Report.?
These photographs are a collection of various atmospheric tests conducted by the United States. The images were originally available from Los Alamos National Labs, but they are now no longer available online. They include the following operations: Crossroads, Ranger, Greenhouse, Buster-Jangle, Tumbler-Snapper, Ivy, Upshot-Knothole, Castle, Teapot, Redwing, Plumbbob, Hardtack, Dominic and Fishbowl.
This photograph collection shows a wood-frame house located 1,100 meters from ground zero, exposed to a nuclear blast at the Nevada Test Site. The test was Upshot-Knothole Annie, a 16 Kt tower shot, on March 17, 1953. Exposure to thermal radiation was 25 cal/cm2, about one-quarter of that experienced at ground zero in Hiroshima. The blast over pressure was 5 psi, and the blast wave created surface winds of 160 mph.
This collection shows photographs shows the construction of CP-1, or Chicago Pile Number One, that was done under the football stadium in an abandoned squash court at the University of Chicago. The pile contained 771,000 lbs. of graphite, 80,590 lbs. of uranium oxide and 12,400 lbs. of uranium metal when it went ?critical.? It cost about $1 million to produce and build. The pile took the form of a flattened ellipsoid, which measured 25 ft. wide and 20 ft. high.
A collection of photographs of the Little Boy and Fat Man atomic bombs features some images of the actual bombs that were detonated over Hiroshima and Nagasaki, Japan, as well as photographs of replicas displayed in museums.
This collection of photographs depicts the 509th Composite Bomb Group on Tinian Island in the Pacific, the crews of the Enola Gay and Bock's Car, and actual atomic bombs that were used on Hiroshima and Nagasaki.
This section contains images of the first atomic test and aftermath. On July 16, 1945, at 5:29:45 AM, a light "brighter than a thousand suns" filled the valley. As the now-familiar mushroom cloud rose into the sky, Oppenheimer quoted from Hindu scripture, the ?Bhagavad-gita,? ?Now I am become death, the destroyer of worlds.? The world had entered the nuclear age. The ?Gadget? had a yield equivalent to 19 kilotons of TNT. ?Fat Man,? the bomb dropped on Nagasaki, was identical in design to the ?Gadget.?
In partnership with the University of Alabama Libraries, this project presents books bound in 19th century decorative book bindings.
Portal of documents, images, photographs, records, multimedia files from the unique collections of Texas institutions, organizations, libraries, museums, and private family collections
http://TrianCal.esy.es - Open in Google Chrome. (Triangles online calculator developed by Jesus S.)
I propose this free online calculator triangles without advertising to help students with geometry, does not perform the duties, because their calculations formulas are not displayed. It is designed in a didactic way to check and view the realized duties.
TrianCal is online calculator triangles that works with any combination of values including sides, heights, angles, the area or perimeter of any triangle, calculating it with the minimum possible value (typically three).
- Draw the triangle (s) with GeoGebra.
- Set the range of values in each element.
- The type of angle.
- The type of triangle by its angles and sides.
- Selection of language (English or Spanish).
- Select the angle type [degrees (°), radians, degrees, minutes and seconds (° ' ") or degrees and minutes (° ')].
- Number of decimal places shown in the results (0-15).
- You can use the arrow keys and the Tab key to navigate through the settings.
- Drop-down menu to select the values comfortably.
- Create a link (URL) to the current triangle.
- An icon mail to communicate with the author.
NOTE: You must use the Google Chrome browser to display correctly TrianCal.
Examples of possible combinations:
- The area, perimeter and other data (side, height or angle), if the outside equilateral triangle would not need the third data.
- 2 angles and other data (if the value of the other data is not put aside the value of "a" at the time of drawing the triangle is 10).
- One side, one high and one angle.
- 3 heights.
- 3 sides.
- 2 heights and perimeter.
- Any other combination of values.
This collection of documents covers the preparations, observations, and post-test summaries of the first test, known as the Trinity Test, of an atomic device (the Gadget).
This site features historical flight information beginning with the efforts of the Wright brothers in 1903. Other topics include the Tuskegee Airmen, Women's Army Auxiliary Corps, aircraft of the U.S. Air Force, and Operation Desert Storm.
Ecologists are investigating whether Weddell seal pups that spend more time in the water learning to swim with their moms have a higher chance of surviving to return and have pups of their own. Weddell seals live all their lives in Antarctica, and are the southernmost mammal in the world. Weddell moms spend a lot of time with their pups coaxing them into the cold Antarctic water and helping them learn to swim. Footage includes interviews with Montana State University ecology professors Bob Garrott and Jay Rotella. Video production by Mary Lynn Price. Additional footage by Jessica Farrer, Jesse DeVoe, Henry Kaiser, Rob Robbins, and Steve Rupp. More information at http://WeddellSealScience.com.
The resilient Weddell seals of Erebus Bay in Antarctica's Ross Sea, and how they responded to a massive iceberg event that blocked access to some of their pupping areas in the past decade. These seals are the southernmost mammal on Earth, and are the subject of one of the longest running population studies ever of a long-lived mammal.
Video includes interviews filmed in Antarctica with Montana State University ecologists Jay Rotella, Bob Garrott, and Thierry Chambert. Footage and images contributed by Mary Lynn Price, Henry Kaiser, Jay Rotella, Bob Garrott, Don Siniff, Gillian Hadley, Rob Robbins, Steve Rupp, Jesse DeVoe, Glenn Stauffer, Jessica Farrer, Jen Mannas, and Thierry Chambert. Video editing by Mary Lynn Price. Opening music composed by Darren Roberts, piano by Rachel Carlson.
A preview of this video first screened at the 2012 Scientific Committee on Antarctic Research (SCAR) Special Cultural Event Program in Portland, Oregon. More info on the Weddell seal population study project at http://WeddellSealScience.com.
The Why Files is a great site that discusses the science behind the news. It's well written, with lots of great images, and there's also a page about classroom activities.
This online archive brings together Blake's disparate, widely dispersed, and often restricted major visual and artistic works in one searchable website. The archive contains scalable electronic editions of Blake's illuminated works with full, up-to-date bibliographic information about each image.
The field notes and plat maps of the public land survey of Wisconsin, conducted between 1832 and 1866 by the federal General Land Office. This work established the township, range and section grid; the pattern upon which land ownership and land use is based.
Presents more than 80 photos, letters, newspapers, manuscripts, maps, music, and films related to the Supreme Court's 1954 decision that "separate educational facilities are inherently unequal." The online exhibit is organized in three parts: previous court cases that laid the ground work for the decision, the argument underpinning the ruling and the public's initial response, and the aftermath.
Between 1897 and 1911 Elizabeth Smith Miller and her daughter, Anne Fitzhugh Miller, filled seven large scrapbooks with ephemera and memorabilia related to their work with women's suffrage. The Elizabeth Smith Miller and Anne Fitzhugh Miller scrapbooks are a part of the National American Woman Suffrage Association (NAWSA) Collection in the Rare Book and Special Collections Division. These scrapbooks document the activities of the Geneva Political Equality Club, which the Millers founded in 1897, as well as efforts at the state, national, and international levels to win the vote for women. They offer a unique look at the political and social atmosphere of the time as well as chronicle the efforts of two women who were major participants in the suffrage movement.