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PIB Summary- 30th January, 2025 | Current Affairs & Hindu Analysis: Daily, Weekly & Monthly - UPSC PDF Download

Travel of magnetic pole from Canada to Siberia, disallows deeper dive of particles


Context

The Earth’s north magnetic pole has been moving from Canada to Siberia, affecting how charged particles behave in space.

PIB Summary- 30th January, 2025 | Current Affairs & Hindu Analysis: Daily, Weekly & Monthly - UPSC

Movement of  Earth’s north magnetic pole

  • Charged particles, like protons and electrons, create the Northern lights and are influenced by the Earth’s magnetic field.
  • Scientists studied how this shift in the magnetic pole changed the altitude of these particles over time.
  • In 1900, the magnetic field near Canada was stronger, and particles stayed at higher altitudes.
  • By 2020, as the pole moved toward Siberia, the magnetic field in that region grew stronger, causing particles to reach altitudes that were 400 to 1200 kilometers higher.
  • This shift affects satellites that orbit near the poles, as charged particles can cause drag, a force that slows them down.
  • The particles can also heat the atmosphere, changing its density and affecting the paths of satellites.
  • The change in the Earth’s magnetic field is important for understanding space weather and protecting our satellites from possible damage.
  • By studying these changes, scientists can better predict space weather and safeguard technology in space.

Reason for movement of earth’s north magnetic pole:

  • The movement of Earth’s north magnetic pole is mainly caused by changes in the Earth’s core.
  • The Earth’s core is made of molten iron and nickel, which moves and generates the planet’s magnetic field.
  • The flow of liquid metals in the outer core creates electric currents, which produce magnetic fields.
  • These movements in the core are not uniform, which can cause the magnetic pole to shift.
  • The movement is influenced by the way the molten metals move, which is still not completely understood.
  • Over time, these changes cause the magnetic pole to drift from one location to another.

Question for PIB Summary- 30th January, 2025
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FAQs on PIB Summary- 30th January, 2025 - Current Affairs & Hindu Analysis: Daily, Weekly & Monthly - UPSC

1. What is the significance of the magnetic pole's movement from Canada to Siberia?
Ans. The movement of the magnetic pole from Canada to Siberia is significant as it affects navigation systems that rely on magnetic compasses. This shift can lead to inaccuracies in navigation for ships, aircraft, and even smartphones that use magnetism to determine direction. Additionally, the movement indicates changes in the Earth's magnetic field, which can have broader implications for geomagnetic phenomena.
2. How does the migration of the magnetic pole impact scientific research on particle physics?
Ans. The migration of the magnetic pole can impact scientific research on particle physics by altering the geomagnetic conditions under which experiments are conducted. Changes in the magnetic field can affect the trajectories of charged particles, making it more challenging to study their behaviors at particle accelerators or during cosmic ray observations.
3. What are the potential consequences of the magnetic pole's shift on global navigation systems?
Ans. The potential consequences of the magnetic pole's shift on global navigation systems include increased navigational errors for devices that depend on magnetic north. This could lead to difficulties in maritime and aerial navigation, requiring updates and recalibrations of navigation charts and systems to ensure accuracy and safety.
4. Why is it important for researchers to monitor the movement of the magnetic pole?
Ans. It is important for researchers to monitor the movement of the magnetic pole to understand the underlying processes driving changes in the Earth's magnetic field. This monitoring helps predict future shifts, assess their potential impacts on technology and navigation, and contribute to our understanding of geophysical phenomena and the Earth's core dynamics.
5. How does the movement of the magnetic pole relate to climate change or other environmental factors?
Ans. The movement of the magnetic pole is not directly related to climate change, but both phenomena can be influenced by changes in the Earth's interior and exterior processes. Understanding the magnetic pole's movement can provide insights into geological activities, which may have indirect effects on environmental changes, including those related to climate patterns and natural disasters.
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