National Weather Service Map

Joseph Henry, the first director of the Smithsonian Institution in Washington, DC, USA, founded the national weather service in 1848. Continue reading

Inauguration of International Airmail Service

International airmail service was inaugurated on March 3, 1919, between Seattle, WA, USA, and Victoria, BC, Canada Continue reading

Supersonic Concorde Jet Crossed The Atlantic

Two Concorde supersonic jets flew across the Atlantic Ocean on May 24, 1976 from both Paris, France and London, England arriving at Dulles International Airport, Washington, DC, USA. Continue reading

Boeing 747 Double-Decker Jet in Operation

Boeing Company of Seattle, WA, USA introduced the jumbo jet, Boeing 747 in 1970. Continue reading

First Military Radar Experiment

The Naval Research Laboratory (NRL) in Washington, DC, USA conducted the first military radar experiment in 1922 Continue reading

First National Geographic Issue with Holographic Cover

The National Geographic magazine published a hologram on the March 1984 edition cover Continue reading

Invention of the Monotype Typesetter

Tolbert Lanston of Washington, DC, USA invented and patented the monotype individual letter typesetter Continue reading

Samuel Pierpont Langley

Title: Samuel Pierpont Langley

Samuel Pierpont Langley (August 22, 1834 – February 27, 1906) was an American astronomer, physicist, inventor of the bolometer and aviation pioneer. Continue reading

Samuel Pierpont Langley Propelled a Steam Engine Plane

Samuel Pierpont Langley propelled a steam engine plane, Aerodrome across the Potomac River near Washington, DC, USA, on May 6, 1896. Continue reading

Seattle Builds Underground Hydroelectric Plant

First underground hydroelectric plant was built in Snoqualmie Falls Continue reading