By 2013, McDonald’s signs could be found in all 50 states as well as approximately 120 countries. This sign was made in the U.S.A. for use in Japan. While the writing is in Japanese, the sign remains instantly recognizable due to its color scheme and signature golden arches. Not only the look o
This single reversible right and left plow model is part of a large collection of model plows that were transferred from the Department of the Interior to the U.S. National Museum in 1910. In 1952, curator Edward C. Kendall researched the model plows and desired to catalog and identify the typolo
National Public Radio reporter Andy Carvin used this iPhone 3GS to monitor stories on Twitter during the Arab Spring movement in the winter of 2011. Twitter and social media became a large source of news during the movement as users on the ground in the Middle East relayed news and real-time even
The portability of cellular telephones provides users with the ability to make calls from almost anywhere and Motorola was built on portability. The company made car radios in the 1930s and portable radios called walkie-talkies for the U.S. military during World War Two, and played a major role i
Motorola produced this BPR 2000 model pager around 1982. Prior to the widespread availability of inexpensive cell phones many people carried telephone pagers to stay in contact with work or home. A miniature radio receiver, a pager alerted the user that someone needed to talk to them and provided
Before 1954, so-called portable radio receivers used vacuum tubes to receive and amplify signals. The large batteries needed to power most tubes made radios large and heavy. Receivers built with subminiature tubes existed but were expensive. The invention of transistors in 1947 allowed engineers
Motorola produced the DynaTAC cell phone in 1984 after more than a decade of work in cellular research and technology. The Motorola DynaTAC (an abbreviation of Dynamic Adaptive Total Area Coverage) was the first commercially available portable handheld cell phone. The phone was a 9-inches tall, w
John H. Irwin received patent number 35,158 on May 6, 1862, of this design of a coil oil lamp. Irwin’s lamp was designed for coal oils and other similar hydrocarbons (such as kerosene) which volatilized at low temperatures and required an excess of oxygen to support illumination. The excess of
People have long sought better ways to illustrate and understand the structure and functions of the human body. Paper dolls and wax, papier-mache, and plaster anatomical models have all been used as tools to teach human anatomy. In the wake of the launch of the Sputnik satellite, designer Marcel
Alfred Vail made this key, believed to be from the first Baltimore-Washington telegraph line, as an improvement on Samuel Morse's original transmitter. Vail helped Morse develop a practical system for sending and receiving coded electrical signals over a wire, which was successfully demonstrated
A picture book about the life of Florence Nightingale, a nurse who was dedicated to making hospitals clean and efficient. Through her life's work, she helped to make nursing an important and respected profession.
A traveling book about an adventurous young woman, Alice Ramsay, who drives across the country in 1909. Despite facing natural and manmade obstacles - including poor roads and a lack of traffic signs - Alice's westward voyage ends triumphantly in San Francisco, making this a charming tale of a gi
Explores five Puerto Rican festivals: The Calle San Sebastian Festival, the fiesta for Santiago Apostol, the celebrations during the Las Navidades, the patriotic festivals of Grito de Lares, and Puerto Rican Day in the United States.