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Composition of soil The composition of soil can be categorized into three phases: solid, liquid, and gaseous. Solid phase Mineral particles: This is the primary component of soil. Mineral particles vary widely in size, shape, and composition. Based on particle size, they are generally classified into sand, silt, and clay. Sand particles are relatively large […]
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Table of Contents What is chlorine? Chlorine (Cl) is a yellow-green gas with a pungent odor, known for its strong oxidizing and corrosive properties. It is widely used in water treatment, chemical manufacturing, healthcare, and disinfection. In nature and industrial applications, chlorine exists both as a gas and in the form of chloride ions (Cl⁻)
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Table of Contents What is Hydrology? Hydrology refers to the various phenomena of water changes and movement in nature. It studies the formation, circulation, spatial and temporal distribution, as well as the chemical and physical properties of water on Earth. Hydrology provides scientific support for preventing and mitigating floods and droughts, as well as for
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Table of Contents Have you noticed this interesting phenomenon? When using gas detectors, different gases have different concentration units. For example, the unit for hydrogen sulfide gas detector is usually ppm, while for oxygen gas detector, it is %VOL, and for methane gas detector, it is LEL. Why are there different detection units for gas
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Table of Contents What do pH Mean in Water? The water pH is an important indicator of its acidity or alkalinity. pH (Potential of Hydrogen) ranges from 0 to 14, with a value of 7 representing neutrality. When the pH is below 7, the water is acidic (the lower the value, the stronger the acidity);
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Table of Contents What are wireless sensors? Wireless sensors are miniature electronic devices that integrate sensing, data processing, and wireless communication functions. They are capable of autonomously detecting physical quantities in the environment, such as temperature, humidity, light, pressure, motion, etc., and transmitting the data in real-time to central nodes or cloud platforms via wireless
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Table of Contents Since the dawn of industrial development, the emission of various toxic gases and solid waste has continuously polluted our air, soil, and water sources. This has made it essential to utilize advanced technologies such as sensors and the Internet of Things (IoT) to establish scientific environmental monitoring systems, enabling us to monitor
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Table of Contents Gardening is a thought-provoking and enjoyable activity. Sometimes, it’s not easy to figure out exactly how much water each plant needs. This is because different plants have varying moisture requirements depending on factors like how and where they are grown, and the type of soil they are in. Ultimately, watering plants is
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Table of Contents In your daily life and work, have you ever felt troubled by unsuitable temperature or humidity levels? Whether you’re an engineer managing a production line, a business owner running a warehouse, or an individual concerned about home comfort, temperature and humidity are critical factors that cannot be overlooked. Changes in temperature and
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Table of Contents What is evaporation? Water exists in three states in nature: liquid, gas, and solid. These states can transform into one another. At normal temperatures, water gradually turns into water vapor and disperses into the air, this is evaporation. It can occur at any temperature. For example, water in a bucket dries up
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