United Technologies

Throughout the 1960s and 1970s, a diverse group of teachers and students working together on academic computing systems conducted many of the activities we now recognize as personal and social computing. Joy Rankin draws on detailed records to explore how users exchanged messages, programmed music and poems, fostered communities, and developed computer games like The Oregon Trail. These unsung pioneers helped shape our digital world, just as much as the inventors, garage hobbyists, and eccentric billionaires of Palo Alto.

Formaldehyde, borax, salicylic acid. Today these chemicals are used in embalming fluids, cleaning supplies, and acne medications. But just over a hundred years ago, they were routinely added to all kinds of food by unregulated and unethical companies. Noted science and history writer Gail Jarrow introduces listeners to the relentless work of U.S. government chemist Dr. Harvey Washington Wiley, who mounted a thirty-year campaign to protect consumers from harmful food and drugs. As part of his research, he tested food additives by serving them to a squad of volunteers—the poison eaters.

Thomas Jefferson praised Tom Paine as the greatest political writer of the age. The author of Common Sense and Rights of Man, Paine helped make revolutions in America and France. But beyond his inspiring calls to action, Paine harbored a deeper political vision for his adopted country. It was embodied in an architectural project that he spent decades planning: an iron bridge to span the Schuylkill River at Philadelphia.

This extraordinary travel book tells the true story of how in 1997 writer Michael Paterniti agreed to take a road trip from New Jersey to California, reuniting the preserved brain of the great scientist Albert Einstein (1879-1955) with his granddaughter Evelyn. Paterniti's improbable travelling companion is 84-year-old Thomas Harvey, the pathologist who not only removed Einstein's brain from his head during the autopsy but purloined it from Princeton Hospital also!

How did the colonists of Jamestown and Maryland live and die? Forensic anthropology provides an incredible array of answers. Scientists can look into a grave and determine the skeleton's gender, age at time of death, nationality, and sometimes even economic standing within minutes. Laboratory studies can provide cause of death information.

Welcome to the United States of America! The USA is the third largest country in the world and also, one of the most beautiful. It is full of lakes and rivers, mountains and canyons, beaches and deserts. It has many different trees and flowers and all sorts of different crops grown for use as food. And, of course, America has birds and animals of all kinds. Last, but not least, the United States has about 300 million people from many different backgrounds and cultures.

As the 2022 National Security Strategy and National Defense Strategy (NDS) makes clear, the United States is in the midst of a decisive decade where the terms of geopolitical competition between the world’s major powers will be set. The Department of Defense (DoD) will advance its priorities in three interlocking ways– through integrated deterrence, campaigning, and by building enduring advantages. Accelerated technology advancement and innovation are key elements to achieving DoD priorities through these strategic ways, and to ensure our national security over the long term.

Federal agencies with a lead role to assist and protect one or more of the nation’s 16 critical infrastructures are referred to as sector risk management agencies (SRMAs). The SRMAs for three of the 16 have determined the extent of their sector’s adoption of the National Institute of Standards and Technology’s (NIST) Framework for Improving Critical Infrastructure Cybersecurity (framework). In doing so, lead agencies took actions such as developing sector surveys and conducting technical assessments mapped to framework elements.

At least as far back as the ancient myth of Icarus, humans longed to fly - but it wasn't until December 17, 1903, on the windy dunes of Kitty Hawk, North Carolina, that the dream finally came true. And it was all thanks to Orville and Wilbur Wright, two former bicycle mechanics who built their first toy plane - a rubber-band powered rotary - when they were just children.

Albert Einstein ist der Inbegriff des Genies. Kein Wissenschaftler des 20. Jahrhundert hat unser Verständnis vom Universum so revolutioniert wie er. Neben den teils verschlungenen Wegen zu seinen Theorien, widmet sich das Hörbuch auch dem Menschen, der diese Wege beschritt. Es beschreibt, wie Einsteins Kindheit in Deutschland, seine Arbeit im Schweizer Patentamt, aber auch sein komplexer Charakter und die daraus folgenden familiären Begebenheiten den großen Wissenschaftler formten.

The Cherokees might be the most famous tribe in the country. If so, the person most responsible for it is Sequoyah, whose invention of the Cherokee syllabary also played a prominent role in facilitating the assimilation between the Cherokee and Americans. Sequoyah began work on devising the writing and reading system around 1809, and it was instantly popular among Cherokees, to the extent that it was being used in written publications among the tribe by the 1820s. The syllabary has been in use ever since, both within the tribe and among outsiders.

An Emmy Award-winning producer and the host of more than a dozen TV series, Jeff Corwin has spent his life working for the conservation of endangered species. Corwin’s Junior Explorer series shows kids that there are natural worlds of wonder all over the planet. In this adventure, Lucy, Benjamin, and Gabe go camping in the Gila National Forest in New Mexico—and there they find breathtaking sights that they’ll never forget.

What's so great about California? Find out the top 10 sites to see or things to do in the Golden State! Explore California's beaches, mountains, film studios, and colorful history. A special section provides quick state facts such as the state motto, capital, population, animals, foods, and more. Take a fun-filled tour of all there is to discover in California.

What's so great about Georgia? Find out the top 10 sites to see or things to do in the Peach State! Explore Georgia's stunning scenery, buzzing cities, and exciting history. A special section provides quick state facts such as the state motto, capital, population, animals, foods, and more. Take a fun-filled tour of all there is to discover in Georgia!

What's so great about New York? Find out the top 10 sites to see or things to do in the Empire State! Explore New York's busy Big Apple, beautiful waterways, and rich history. A special section provides quick state facts such as the state motto, capital, population, animals, foods, and more. Take a fun-filled tour of all there is to discover in New York.

Why GAO did this study. The internet is a global system of interconnected networks used by billions of people across the world to perform personal, educational, commercial, and governmental tasks. The US Government over time has relinquished its oversight role of the internet. A global, multistakeholder community made up of many organizations shapes internet policy, operations, and security. But the ongoing and increasing reliance on the internet underscores the need to understand the risks to its underlying architecture.

The United States is experiencing a profound crisis when it comes to mental health care. In a recent Senate Committee on Finance hearing on youth mental health, US Surgeon General Dr. Vivek Murthy shared that Americans wait 11 years, on average, between onset of symptoms and first receiving treatment. The consequences are plain to see: higher suicide and drug overdose rates, more Americans without a safe place to sleep, more children experiencing depression and anxiety. The house is on fire, and the nation is short on firefighters equipped to put out the blaze.

Benjamin Franklin was an author, physicist, innovator, statesman, diplomat, printer, publisher, and political thinker who resided in America. Franklin was just one of the Founding Fathers of the United States, a drafter and signer of the US Declaration of Independence, and the first postmaster general of the United States. For his discoveries and views about electrical energy, he was an essential player in the American knowledge and the history of physics as a researcher. He is most prominent for his developments like the lightning arrester, bifocals, and the Franklin hotplate.

Have you ever been on a cross-country trip? If not, then this is your chance to see the sights of the Northeast States of the US! Each state presents unique geographic features that you should visit, whenever you get the chance. Studying geography now will boost your child’s awareness of the world, including the different cultures followed in different regions. Start listening today!

Take your fifth graders on a trip, albeit only virtually, across the western states of America. Geography will open your child’s eyes to the different landscapes in each state. It will also encourage the ability to understand the similarities and differences of each of the states included. Grab a copy now.