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

Turning Eggs Baking Soda into Sodium Metal

Stop data brokers from exposing your personal information. Go to my sponsor https://aura.com/amateurchemistry to get a 14-day free trial and see how much of yours is being sold. In this video I use the power of chemistry to turn just some eggs and baking soda into the extremely reactive elemental s