It is a well-known fact that a cat which is falling upside down, has the ability to turn its body mid-air so that it lands on its feet. In past, many scientists such as George Gabriel Stokes, James Clerk Maxwell, and Étienne-Jules Marey had shown great int…
The history of airships begins, like the history of hot air balloons, in France. After the invention of the hot air balloon in 1783, a French officer named Meusnier envisioned an airship that utilized the design of the hot air balloon, but was able to be nav…
World War I was one of the defining events of the 20th century. From 1914 to 1918 conflict raged in much of the world and involved most of Europe, the United States, and much of the Middle East. In terms of technological history, World War I is significant b…
Until the atomic bomb could be tested, doubt would remain about its effectiveness. The world had never seen a nuclear explosion before, and estimates varied widely on how much energy would be released. Some scientists at Los Alamos continued privately to hav…
In 1973, the US Army started testing possible designs for an anti-tank grenade. Commanders in Europe had asked for some sort of ordnance for destroying tanks in close quarters. If Warsaw Pact troops had invaded, NATO soldiers could have found themselves taki…
What use is an inflatable dummy tank in a very real war? A lot, if the enemy believes that it’s real. During World War I, Allied forces made use of dummy versions of the British heavy tanks. These were constructed from a wooden framework and covered with pai…
Hoover Dam is as tall as a 60-story building. It was the highest dam in the world when it was completed in 1935. Its base is as thick as two football fields are long. Each spillway, designed to let floodwaters pass without harming the dam itself, can handle …
In the early 1930s, the German military began seeking out new weapons which would not violate the terms of the Treaty of Versailles. Assigned to aid in this cause, Captain Walter Dornberger, an artilleryman by trade, was ordered to investigate the feasibil…
In 1889, Paris hosted an Exposition Universelle (World’s Fair) to mark the 100-year anniversary of the French Revolution. More than 100 artists submitted competing plans for a monument to be built on the Champ-de-Mars, located in central Paris, and serve as …
A British splatter mask worn by a French tank gunner, it was designed to help protect the crewmember's face from shrapnel when looking through the view ports. The eye covers were metal, the mask was leather and there was a chainmail skirt to cover the mout…
The development of nuclear artillery was part of a broad push by nuclear weapons countries to develop nuclear weapons which could be used tactically against enemy armies in the field (as opposed to strategic uses against cities, military bases, and heavy i…
Acoustic location was used from mid-WW1 to the early years of WW2 for the passive detection of aircraft by picking up the noise of the engines. Passive acoustic location involves the detection of sound or vibration created by the object being detected, which…
First flown in 1969, Concorde entered service in 1976 and continued commercially for 27 years. With a cruising speed of 1,350 mph (2,180 km/h at cruise altitude), its unmistakable roar and sleek, sexy lines the Concorde became an icon of aviation history. Fo…
Conveying the officials in the photograph is a section of 30ft diameter steel penstock of the soon-to-be-completed Hoover Dam. In the same year, the pouring of the project's concrete had concluded - a total of 3.25million cubic yards. As the United States…
On July 16, 1945, the United States became the first country to successfully detonate an atomic weapon, signalling the beginning of a new era in warfare and in politics. In the early 1940s, the U.S. government authorized a top-secret program of nuclear testi…
The Heavy Gustav, was completed towards the end of 1940 and the proof rounds were fired early in 1941 at the Rugenwalde Artillery Range. Both Hitler and Albert Speer, later to be his armaments minister, attended the occasion. Named after the head of the…
German troops in Soviet Union destroying the railroad during an organized retreat. The Schienenwolf (Rail Wolf), sometimes also referred to as a Schwellenpflug (Sleeper Plough) was a German rail vehicle built to destroy rail lines through the use of an imm…
In both World Wars, the most distinctive feature of the Germany army uniform was the item that has come to symbolize German militarism in even remotest corners of the world – the helmet, the Stahlhelm. Here, on a table set up outside a steel helmet factory i…