Step voltage is a difference in voltage between two nearby points on the ground, usually at a distance of 0.5 to 1 meter. This phenomenon can occur during powerful lightning strikes or serious electrical line faults, which can lead to electric shocks if someone is nearby.
To protect yourself from step voltage, it is recommended to keep your feet close together and move away from the area quickly but carefully. Another way to protect yourself is to hop on one foot or take very small steps. Special protective footwear and insulating rubber mats can also be used to minimize the risk, especially for those working near high-voltage power lines.
The Great Green Wall is an ambitious ecological initiative aimed at halting desertification in the Sahel region of Africa. Launched in 2005, this project involves the creation of a belt of artificially planted trees and shrubs approximately 15 kilometers wide and over 7,700 kilometers long. This green belt is intended to prevent the Sahara Desert from expanding southward, thereby protecting areas with naturally occurring trees and agricultural lands from degradation and soil fertility loss. The initiative includes 11 African countries that are collaborating to build this green wall, which aims to serve as a barrier against the spread of the desert. The project also seeks to improve living conditions for local communities by supporting agriculture, retaining water in the soil, and restoring biodiversity. While the project is impressive, its effectiveness is often questioned. Challenges such as harsh climatic conditions, lack of adequate resources, and difficulties in maintaining the pla...
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