Adventure Ausrama Blog

It is accepted that early photography was a difficult path for an enthusiast to take. Cameras were bulky and heavy. The person who took photos had to be a virtual specialist chemist. It is so different from the ease of trapping a moment in the present. A pioneer in this field was Ducos du Haurun a brilliant Frenchman. He took color photographs. Three different colored filters were used to capture negative shots developed on gelatin film. The yellow, red and blue layers were then assembled to produce a single print. Over time, Ducos du Hauron introduced practises to speed up the process. French investigators have analyzed some of the 18th century pictures. They used x-ray florescent spectroscopy, synchrotron-based infrared (IR) spectroscopy and Raman spectroscopy to determine the chemicals used as pigments for the different colors. Photographs taken in 1878 showed that Prussian blue was the ingredient used for the blue gelatin layer. Carmine lake was the foundation pigmen

Information about the climate five centuries ago has come to light from leaves found in an old Bible. Susana Melo de Howard was returning the 1540 Great Bible back into its humidity-controlled room when she saw the preserved leaves. The book is kept at the University of Western Australia. It came from the monastery of Ely Cathedral in England and was the first English translation of the Bible. William Tyndale was executed in Belgium for this "crime". The West Australian university got the book at the bargain price of $500 in 1977. No one had viewed the Bible in the last twenty years. Detective work began on the leaves as soon as they were found. By sending photographs of the leaves to academic centers all around the world, they were identified as Wych elm which was common in England 500 years ago. Carbon dating showed the leaves were placed in the Bible in the 1560s. Nitrogen was high on wetland farms in those days. Mercury, chromium and arsenic pollution was also