Photokina 2014 highlights

Dinosaurs

Three-dimensional printing is being used to create precise robotic models of dinosaurs (Im...

Although it may seem that we know a great deal about dinosaurs, a lot of the knowledge is actually based on assumptions rather than hard facts. Often, scientists have to resort to guesswork. Some hypotheses can only be tested by manipulating a skeleton model, but that's quite a challenge if the bones you want to study belonged to an enormous animal. Also, size is not the only issue. Dinosaur fossils tend to be fragile, unique and valuable. That's why the researchers at Drexel University, who want to build precise robotic models of dinosaurs, decided to use 3D printing technology.  Read More

New computer modeling technology suggests that Tyrannosaurus rex was even larger than prev...

Tyrannosaurus rex, that coolest of all the dinosaurs, may have been even bigger and scarier than originally thought. That’s the conclusion that was recently reached by a team of scientists, who used computer modeling technology to estimate the average body mass of the carnivorous dinosaurs. After digitally “fleshing out” existing T. rex skeletons, the researchers now believe that the reptiles grew twice as fast, and reached adult weights up to 30 percent higher than previously assumed.  Read More

A present-day salt lake in the south of Russia
 Pic Credit: Dr. Ludwig Weißflog/UFZ

A new report by an international team of scientists has suggested that the largest mass extinction in the history of the earth may not have been caused by volcanic eruptions, methane hydrate or the impact of an asteroid as previously surmised. It may actually have been triggered by giant salt lakes, whose emissions of halogenated gases changed the atmospheric composition to such an extent that vegetation was irretrievably damaged. While this is a lot less dramatic than a volcanic eruption or an asteroid, the effect would be no less devastating and may have implications for us today with forecasts predicting an increase in the surface areas of deserts and salt lakes due to climate change that researchers expect will also lead to an increase in the effects of these halogenated gases.  Read More

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