what is its part in photography?
It was used in early photographic technology by thinly coating bitumen onto a pewter plate which was then exposed in a camera.
Asphalt
was used in early photographic technology
when did the saber toothed cat become extinct It became extinct 10,000 years ago in the Quaternary extinction event. what is smilodon? is a genus of the extinct machairodont subfamily of the felids. how does it look like? It is well-developed forelimbs and exceptionally long upper canine teeth and its jaw has a bigger gape than that of modern cats. how did it get its name? Lund named it Smilodon populator which the Ancient Greek meaning of "Smilodon" as ("smilē"), "scalpel" or "two-edged knife", and "οδόντος" ("odontús"), "tooth". how friendly is their behavior with humans? UNANSWERABLE where can these creatures be widely found? Fossils were found in parts of North America, South America and as far as north Alberta, Canada. what do they feed on? They fed on peccary "Platygonus" and the llama-like "Hemiauchenia", bison, tapirs, deer etc were there any natural traps that acted as its threat? Yes, asphalt seeps and the Talara Tar Seeps what does the first one mean? They are naturally occurring deposits of bitumen are formed from the remains of ancient, microscopic algae (diatoms) and other once-living things. what are its other uses? Roofing shingles, roll roofing, cattle sprays, fence-post treatments, and waterproofing for fabrics. what was its purpose in ancient times? Waterproofing, adhesive, used for mortar between bricks and stones, to cement parts of carvings etc
wiki:1608815
Asphalt [SEP] Photography and art
Bitumen was used in early photographic technology. In 1826 or 1827, it was used by French scientist Joseph Nicéphore Niépce to make the oldest surviving photograph from nature. The bitumen was thinly coated onto a pewter plate which was then exposed in a camera. Exposure to light hardened the bitumen and made it insoluble, so that when it was subsequently rinsed with a solvent only the sufficiently light-struck areas remained. Many hours of exposure in the camera were required, making bitumen impractical for ordinary photography, but from the 1850s to the 1920s it was in common use as a photoresist in the production of printing plates for various photomechanical printing processes.