BIZARRE: ancient bricks reveal anomaly in Earth’s magnetic field

A significant revelation about the magnetic field da Terra emerged from ancient inscriptions on Mesopotamian bricks, which praise the kings of the time.

These findings, detailed in an article in the journal Proceedings of the National Academy of Sciences, reveal magnetic strengthening that extended across vast regions, especially near present-day Iraq, more than three millennia ago.

Magnetic mysteries unraveled

Illustration of the Earth’s magnetic field – Image: Shutterstock/Mopic/Reproduction

The Earth’s magnetic field is dynamic, subject to changes over time and in different regions. Sometimes weak areas appear inexplicably, while others exhibit mysterious strengths.

This field plays a crucial role in our protection against space radiation, in guiding navigation systems and even in animal migration.

The discovery of these inscriptions on ancient bricks in Mesopotamia has brought a new perspective to the enigma. The bricks contained grains of iron oxide that preserved the direction and strength of the magnetic field during manufacturing.

Analysis of these items revealed that the region’s magnetic field was almost double more than a thousand years ago, especially during the reign of Nebuchadnezzar II, known for his monumental constructions.

Measurement of the magnetism of these finds suggested rapid and intense fluctuations in the magnetic field over a short period of 42 years. This confirms that the geomagnetic field can undergo rapid and intense changes, a phenomenon that intrigues scientists to this day.

Despite representing an advance in understanding the Earth’s magnetic field, the study leaves mysteries to be unraveled. He helped historians by offering details about the sequence of reigns in the region, which corroborates proposed timelines.

Magnetic anomalies are not exclusive to the past. The South Atlantic Anomaly, persistent to this day, is millions of years old.

Scientists have been tracking changes through ashes from huts burned between 800 and 500 years ago, an approach similar to the method used in these Mesopotamian bricks.

The investigation of Mesopotamian bricks provides a fascinating insight into the history of Earth’s magnetic field, offering valuable insights not only for physicists but also for science scholars. ancient history.