The Relative Humidity Of The Atmosphere In The Encasements Containing The Declaration Of Independence The Us Constitution Pages 1 And 4 And The Bill Of Rights PDF Download
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Author | : James W. West |
Publisher | : |
Total Pages | : 26 |
Release | : 2002 |
Genre | : Hygrometry |
ISBN | : |
Download The Relative Humidity of the Atmosphere in the Encasements Containing the Declaration of Independence, the US Constitution (Pages 1 and 4), and the Bill of Rights Book in PDF, ePub and Kindle
Author | : National Aeronautics and Space Administration (NASA) |
Publisher | : Createspace Independent Publishing Platform |
Total Pages | : 38 |
Release | : 2018-06-19 |
Genre | : |
ISBN | : 9781721297115 |
Download The Relative Humidity of the Atmosphere in the Encasements Containing the Declaration of Independence, the Us Constitution (Pages 1 and 4), and the Bill of Rights Book in PDF, ePub and Kindle
In 1951, the four pages of the US Constitution, the Letter of Transmittal, the Bill of Rights and the Declaration of Independence, collectively called the 'Charters of Freedom,' were hermetically sealed individually in glass encasements. The atmosphere in the encasements consisted of a mixture of helium with water vapor at a relative humidity between 25 and 35% at room temperature. In 1998, Margaret Kelly of the National Archives and Records Administration (NARA), contacted Dr. Joel S. Levine at NASA Langley Research Center (LaRC) to request assistance in determining the chemical composition of the atmosphere inside the encasements. Several different Langley learns were assembled to address that request. each using a different measurement technique. This report describes the method and results of one team's relative humidity measurements on encasements containing pages 1 and 4 of the US Constitution, the Bill of Rights, and the Declaration of Independence performed at NARA, College Park. Maryland, on July 23, 2001. West, James W. and Burkett, Cecil G. and Levine, Joel S. Langley Research Center NASA/TM-2002-211433, L-18145, NAS 1.15:211433
Author | : Alan Fried |
Publisher | : SPIE-International Society for Optical Engineering |
Total Pages | : 278 |
Release | : 2002 |
Genre | : Science |
ISBN | : |
Download Diode Lasers and Applications in Atmospheric Sensing Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 322 |
Release | : 2004 |
Genre | : Archives |
ISBN | : |
Download Prologue Book in PDF, ePub and Kindle
Author | : Mary Lynn Ritzenthaler |
Publisher | : Rittenhouse Book Distributors |
Total Pages | : 521 |
Release | : 2010 |
Genre | : Archival materials |
ISBN | : 9781931666329 |
Download Preserving Archives and Manuscripts Book in PDF, ePub and Kindle
Rev. ed. of: Preserving archives and manuscripts. 1993.
Author | : Charles de Secondat baron de Montesquieu |
Publisher | : |
Total Pages | : 418 |
Release | : 1777 |
Genre | : French literature |
ISBN | : |
Download Complete Works Book in PDF, ePub and Kindle
Author | : Carl Lotus Becker |
Publisher | : |
Total Pages | : 304 |
Release | : 1922 |
Genre | : Natural law |
ISBN | : |
Download The Declaration of Independence Book in PDF, ePub and Kindle
Author | : Sue Grabowski |
Publisher | : |
Total Pages | : 122 |
Release | : 1996 |
Genre | : Interns (Legislation) |
ISBN | : |
Download Congressional Intern Handbook Book in PDF, ePub and Kindle
Author | : Madison, James H. |
Publisher | : Indiana Historical Society |
Total Pages | : 359 |
Release | : 2014-10 |
Genre | : Juvenile Nonfiction |
ISBN | : 0871953633 |
Download Hoosiers and the American Story Book in PDF, ePub and Kindle
A supplemental textbook for middle and high school students, Hoosiers and the American Story provides intimate views of individuals and places in Indiana set within themes from American history. During the frontier days when Americans battled with and exiled native peoples from the East, Indiana was on the leading edge of America’s westward expansion. As waves of immigrants swept across the Appalachians and eastern waterways, Indiana became established as both a crossroads and as a vital part of Middle America. Indiana’s stories illuminate the history of American agriculture, wars, industrialization, ethnic conflicts, technological improvements, political battles, transportation networks, economic shifts, social welfare initiatives, and more. In so doing, they elucidate large national issues so that students can relate personally to the ideas and events that comprise American history. At the same time, the stories shed light on what it means to be a Hoosier, today and in the past.
Author | : Joe Pappalardo |
Publisher | : Abrams |
Total Pages | : 242 |
Release | : 2019-03-26 |
Genre | : Science |
ISBN | : 1468315641 |
Download Spaceport Earth Book in PDF, ePub and Kindle
“Tackles the ever-changing, twenty-first-century space industry and what privately funded projects like Elon Musk’s SpaceX mean for the future of space travel.” —Foreign Policy Creating a seismic shift in today’s space industry, private sector companies including Elon Musk’s SpaceX and Jeff Bezos’s Blue Origin are building a dizzying array of new spacecraft and rockets, not just for government use, but for any paying customer. At the heart of this space revolution are spaceports, the center and literal launching pads of spaceflight. Spaceports cost hundreds of millions of dollars, face extreme competition, and host operations that do not tolerate failures—which can often be fatal. Aerospace journalist Joe Pappalardo has witnessed space rocket launches around the world, from the jungle of French Guiana to the coastline of California. In his comprehensive work Spaceport Earth, Pappalardo describes the rise of private companies and how they are reshaping the way the world is using space for industry and science. Spaceport Earth is a travelogue through modern space history as it is being made, offering space enthusiasts, futurists, and technology buffs a close perspective of rockets and launch sites, and chronicling the stories of industrial titans, engineers, government officials, billionaires, schemers, and politicians who are redefining what it means for humans to be a spacefaring species. “Private companies and rich people like Elon Musk and Jeff Bezos have taken over the exploration of space. Pappalardo explores this new sort of spacefaring at the outer reaches of business and technology.” —The New York Times “For anyone obsessed with how spaceflight grew into what it is today, this book is a must-have.” —Popular Mechanics