Question
Which technology was used to discover a lost Mayan city
in the Mexican jungle?Solution
Discovery of Lost Mayan City Using LiDAR -      Location: Mexican jungle -      Discovery: Lost Mayan city revealed beneath dense vegetation -      Technology Used: LiDAR (Light Detection and Ranging) , which penetrated the jungle canopy to reveal ancient structures What is LiDAR?                -      Definition: A remote sensing method using light pulses to measure distances and create 3D surface models -      Accuracy: Can achieve up to 10 cm vertical accuracy (US Geological Survey) - Components: -      Laser: Emits rapid pulses toward the ground -      Scanner: Collects reflected light to measure distance -      GPS Receiver: Provides precise geographic location for each data point How Does LiDAR Work? - Process: -      Laser pulses are directed at surfaces (trees, buildings, ground) -      Light reflects back to the sensor -      The time for reflection is measured to calculate the distance -      GPS adds exact location data to each point, ensuring geographical accuracy Applications of LiDAR -      Forestry: Measures tree height and density -      Urban Planning: Maps infrastructure -      Archaeology: Reveals hidden sites (e.g., Mayan city) -      Environmental Science: Flood modeling and landscape change assessment Advantages of LiDAR -      Speed: Quickly covers large areas -      Accessibility: No need for physical ground access; ideal for dense or hard-to-reach areas -      Accuracy: Provides high-resolution terrain data useful for various scientific fields Limitations of LiDAR -      Cost: Expensive to deploy and operate -      Skill Requirement: Requires skilled operators and specialized equipment -      Weather Sensitivity: Heavy rain or fog can reduce data quality
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