Search results for “calcium deposits”

This is how a heart attack happens

The origin may be coronary heart disease. In this case, circulatory disorders occur due to calcium deposits in the coronary vessels. In the worst case, this "arteriosclerosis" can lead to a heart attack. Author: ZDF/3sat/nano/Südkino F i l m p r o d u c t i o n GmbH/Berndt Welz/Hannah Dewies/Tim Sp

What are helicopters used for in an emergency?

The helicopter measurements have been carried out in cooperation with the Federal Police since 1989. By using BfS measurement technology, it is possible to quickly and precisely obtain an overview of which radioactive substances have been deposited on the ground and in what concentration they are pr

What is a stromatolite

Stromatolites are calcareous deposits. The stones can be up to 3.5 billion years old. For a long time they were known only as fossils, until 1956, when a "living" colony of stromatolites was discovered off the west coast of Australia. Author: ZDF/Terra X/Viking Film/Iris Gesang/Andreas Kieling, Fra

Curiosity Rover Hits Paydirt on Mars | NASA Planetary Sciences

Learn about the discovery of conditions that would have been suitable for life on ancient Mars. In 2013, the Mars Science Laboratory (MSL) science team released initial findings from its first drilled sample using the Curiosity rover. MSL scientist Joel Hurowitz describes the sedimentary rock sample

Mars Streambed | NASA Planetary Sciences

NASA Jet Propulsion Laboratory scientist Sanjeev Gupta uses images captured by Curiosity rover to explain the significance of pebbles found on Mars. Gupta describes the ground-layer composition at three outcrops near the rover's landing site that contain rounded pebbles. Because rounded pebbles on E

Renewable Energy and the Energy Transition

The world is driven by fossil fuels like oil and gas. This has some negative repercussions: Rising energy prices due to decreasing deposits, dependence on unstable oil and gas producing regimes and global warming. It becomes clear, that a revolution in the way how we produce and use energy is necess