Sunday, May 3, 2015

The Economics and Science of the 1900 Exposition

In spite of the spectacularly overtaxing of the Parisian water, sewage, and transportation systems, reports from the fair indicate a remarkable degree of financial success. A 1900 Chicago tribute report indicates that funding for the fair was secured by a combination of state contribution, donations from the city of Paris, and private investment. In a novel system, donations from individuals were secured in the form of non-reimbursable bonds costing four dollars. More than three million and a half of these bonds were issued, and they promised the purchaser twenty entries to the fair, a reduction in price of the railroad, and entry into a quarterly lottery drawing. As entrances to the fair cost nothing for the fair, this approach of soliciting public interest was an effective means of gathering “a great many millions” for the fair planning committee.

The Octroi tax repaid the city of Paris for its investment in the exposition by a factor of three. Levied on food and wines brought into the city, this tax charged businesses for a third again the cost of food and drink in the city. While the report is unclear whether the fee was transferred to urban businesses or primarily to guests, it is likely that this approach relied heavily on the large crowds of foreign tourists visiting for the fair.

In addition to the business of the fair itself, many countries made contributions to exhibitions of recent scientific research. While it is difficult to point out a thematic contest of national specialties, the eagerness of the United States, for example, to contribute its discoveries made in Experiment Stations recently established in 1890 indicate that such representation was crucial for international prestige and possibly private investment. The 1900 report on US exhibits at the Exposition Universelle shows a strong focus on agricultural research. The report conveys news of new testing systems for the saline content, acidity, and moisture of soil. Likewise, the United States displayed numerous crops that pushed the boundaries of climatic extremes. 

  Meanwhile, however, the French competitors of the United States pushed the boundaries of scientific understanding through the Professor Curie’s demonstration of the “purely physical influence” of isolated radium on natural surroundings. In this experiment, a tube of radium next to a tube of zinc sulphide. The radiation from the radium causes the zinc sulphide to shine without any direct chemical reaction, indicating an invisible, heretofore unknown physical process. Simultaneously, Professor Pellat proved the existence of another invisible force, that of magnetic fields, through an independent demonstration.


A dramatization of the Curie experiment



            Thus, the demonstrations of scientific advances at the fair show a new approach by French scientists. While other displays, such as that of the United States, were focused on practical technology to improve agricultural yield, the French displays condensed laboratory procedures for public presentation as “devices” and remained focused on research that, while utterly groundbreaking, as yet had no immediate commercial implication.


The Curie experiment in its most common form: combined radium and zinc sulphide, or glow-in-the-dark paint. 


Exhibition of Scientific Devices in Paris. Scientific American (1845-1908); Jul 19, 1902; Vol. LXXXVII., No. 3.; American Periodicals pg. 34

American Experiment Stations at the Paris Exposition. Scientific American (1845-1908); Mar 24, 1900; Vol. LXXXII., No. 12.; American Periodicals. pg. 178


Chicago Daily Tribune (1872-1922); Mar 11, 1900; ProQuest Historical Newspapers: Chicago Tribune. pg. 49

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