Inspire & Express

 In July 2024, the Wayanad district of Kerala witnessed a massive landslide, resulting in significant loss of life. Unfortunately, this is not a new phenomenon. A look at history reveals multiple instances of landslides in the Western Ghats districts like Ooty and Wayanad. A landslide is a mass movement of material, such as rock, earth, or debris, down a slope. They can occur suddenly or gradually over time. When the force of gravity acting on a slope exceeds the resisting forces, including friction and the internal strength of the rock, soil, or sediment, a landslide occurs. Studies suggest that tree roots reinforce soil layers, anchor the soil to bedrock, and form buttresses against soil movement. Trees also reduce landslide risk by lowering soil moisture levels through interception, evaporation, and transpiration. One of the reasons for the recent landslides is the expansion of tea plantations in these regions, leading to the destruction of forest trees. Tea plantations were int...

When I walk around parks and public places, I often see used water bottles, canned drink bottles, and snack wrappers scattered about. These items frequently end up on walkways, sometimes getting kicked around. I'm sure many of us have witnessed and experienced this. However, I've also seen people responsibly throwing their trash in bins, even separating degradable and non-degradable waste. This is something many of us have likely observed. I've noticed sanitary workers diligently picking up trash, sweeping the area, and disposing of waste. Unfortunately, many of these workers lack gloves, safety aprons, and proper tools. They work in public spaces as sanitary workers, but often don't have a place to sit and rest for their meals. Despite witnessing these efforts, I rarely see individuals picking up trash from walkways and disposing of it properly on normal days. Yet, I've observed groups of people coming together for clean-up events. They buy expensive gloves and saf...

Whenever it rains, even a little, many subways experience water logging. If the rain continues, the subway becomes completely flooded. This raises several questions: Why does water logging occur in subways? Is there a solution? Designing any product or process involves extensive analysis, testing, and consideration of various failure modes. Only after thorough evaluation is the product or process launched or implemented. When it comes to subways, water logging is identified as one of the potential failure modes. Historical data on rain and flood patterns in a particular area provide information about the amount of water that can accumulate. Subways, being low-lying areas, can easily be calculated for the amount of water diverted to them based on the slope, intensity of rain, etc. Soil water absorption capacity can be analyzed through soil properties. Parameters like soil porosity and permeability help determine the water absorption rate and holding capacity. Soil porosity is the percen...

Nature has its own way of storing and flowing water. It stores water underground, which comes out through springs. Springs are natural exit points where groundwater emerges from the aquifer and flows onto the Earth's surface, becoming surface water. These springs form streams, which flow into pits and low-lying areas, creating lakes or ponds based on their capacity. Once filled, they overflow and form rivers. Depending on the landscape, waterfalls may form along the river's path. Rivers can merge with other rivers or directly drain into the ocean. When small rivers connect with others, they form larger rivers that eventually flow into the ocean. The place where a river meets the ocean is called an estuary. This is nature's way of water flow. People started diverting water to higher landscapes or other areas for their needs by creating artificial channels. This was to serve their water needs, including irrigation and drinking water, ensuring water security. However, post-ind...

 The Bhavani River originates from the Western Ghats in the Nilgiris district and connects with the Kaveri River at Erode district. Similarly, the Noyyal River starts from the Western Ghats in Coimbatore district and joins Kaveri at Karur district. The Amaravathi River also from the Western Ghats, merges with the Kaveri. The Kaveri River, originates from Thalai Kaveri in Karnataka district. It enters Tamil Nadu at Mettur, flows through Trichy and Tanjavur, and finally meets the sea near Poompuhar in the Mayiladuthurai district. During the Chola Kingdom era, with Tanjavur as their capital, rulers faced severe floods from the Kaveri. To mitigate this, they constructed the Kallanai Dam in Trichy and created the man-made Chembarampakkam Lake to divert water. This lake now supplies water to Chennai. They also built around 18 check dams on the Noyyal River to control its flow, aiding groundwater recharge in the region. These ancient efforts showcase the immense water flow of the Kaveri d...

 Learning multiple languages is beneficial for any individual. Successful leaders often learn several languages, and many acclaimed writers have done the same, enabling them to produce innovative and translated works. In companies with a presence in multiple locations or international customers, learning their language creates a positive impact and helps build rapport. For instance, a Hindi-speaking leader who learns a few Tamil words to communicate with team members can foster a positive relationship. Similarly, when we meet a French person, attempting to speak even a single French word can help establish a connection. Learning languages out of interest allows us to appreciate the literature and culture of that language. Successful writers and filmmakers often do this. For example, many South Indian filmmakers watch Korean movies as a benchmark. Thus, learning multiple languages is always advantageous. Anyone with interest can learn a new language at any age. In India, children of...