A to Z of Innovations at Expos: Solar oven

A to Z of Innovations at Expos: Solar oven

Inventors and entrepreneurs have long been hoping to harness the power of the sun as a long-term source of sustainable energy. French mathematics professor Augustin Mouchot was a precursor, when he first demonstrated the potential of this form of energy, showcasing the parabolic solar collector, at World Expo 1878 in Paris.

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A to Z of Innovations at Expos: Phonograph

A to Z of Innovations at Expos: Phonograph

In an era of rapid technological change and regularly updated devices, it is easy to underestimate the revolutionary impact of new inventions in the late 19th century. At World Expo 1878 Paris, one such invention - Thomas Edison’s phonograph, capable of recording and playing back sound – seemed so amazing to visitors that many were convinced it was a fake.

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Expo 1878 Paris: The revelation of Sun Power

Expo 1878 Paris: The revelation of Sun Power

Augustin Mouchot’s solar device made its debut at Expo 1878 Paris. At a time when France was seeking to rebuild itself following the Franco-Prussian war, the inventor of the first parabolic solar collector was seen as a genius.

A brilliant French mathematician who possessed a futuristic mentality that led him to foresee a time when the world would no longer be able to depend on non-renewable resources, Mouchot first built a solar-powered steam engine using a concave mirror to reflect the sun’s rays onto a glass-covered boiler. To his amazement, it worked perfectly and motivated him to experiment further in Northern Africa.

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