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Have you ever gazed out of an airplane window and spotted those large green circles sprawling across fields? What are they, and how do they work? Today, we're going to unravel the mystery behind these agricultural wonders. Welcome to another episode of Smarter Every Day, where we explore the genius of farming and its technological advancements.
Our journey begins with a question that has likely crossed your mind: What are those big green circles in the middle of fields? The answer is simple yet profound – they are center pivot irrigation systems. These systems are the brainchild of farming innovation, designed to transfer groundwater to crops in a highly efficient manner. But how do they operate? Let's delve deeper.
We started our exploration by building two pivots, one for each field. The process was a family affair, with Trey, a farmer, leading the charge. The first step involved creating a pad for the pivot itself, followed by digging ditches to run the pipe out to the pivot point. This was no small feat, and it required the entire family's involvement.
As we lubed up the pipes and connected them, we couldn't help but marvel at the complexity of the task. Each section of the pivot had to be assembled with precision, and the electronics box that would control the entire pivot was a marvel of modern engineering.
The pivot's mechanics are fascinating. It not only provides water to the crops but also serves as the structure's backbone. We assembled the pyramid that would become the center of the pivot and attached the electronics box to its side. The entire assembly was then placed on a concrete pad and bolted down, ready for action.
The next challenge was to attach the axle and wheels, which would allow the pivot to move across the field. This was a moment of realization for me, as I understood the intricate balance between the pivot's movement and the water distribution.
One of the most intriguing aspects of the pivot is the sprinkler system. We attached plastic tubes to the pipe, which would eventually connect to the sprinklers. These tubes were designed to break off in case of a storm, preventing damage to the pipe. The sprinklers themselves were numbered and placed in a specific order to ensure even water distribution across the field.
The final piece of the puzzle was the drive train and electric motor, which turned the wheels and powered the pivot's movement. The entire system was a testament to engineering prowess, with each component working in harmony to achieve the common goal of watering the crops.
A few months after the pivot was installed, I returned to see it in action. The sight was breathtaking, as the pivot moved smoothly across the field, watering the crops with precision. Trey demonstrated how he could control the pivot from his phone, adjusting the start and end points to ensure even coverage.
Two big questions remained: How do the pivots distribute water evenly, and how do the sections stay aligned? The answer lies in the design of the sprinkler nozzles and the control system. Each nozzle has a regulator, and the flow rate is adjusted based on the distance from the pivot center. This ensures that each plant receives the same amount of water.
The alignment of the pivot sections is managed by a clever system of limit switches and cam mechanisms. As one section moves, it adjusts the linkage, which in turn rotates a cam that controls the switches. This system ensures that each section moves in sync, creating the illusion of a perfectly straight line.
Before we wrap up, I want to extend a heartfelt thank you to our Patreon supporters. Your continued support allows us to create these videos and share the wonders of technology and science with you. If you're interested in joining our community, please consider supporting us on Patreon.
Our journey through the world of center pivot irrigation has shown us the incredible ingenuity of farmers. These systems are not just tools; they are the result of a deep understanding of hydrology, mechanics, and technology. Farmers are the unsung heroes who put food on our plates, and I hope this video has given you a new appreciation for their work.
Thank you for joining me on this exploration. If you enjoyed this episode, please subscribe to Smarter Every Day and consider supporting us on Patreon. Let's continue to learn, grow, and get smarter every day!
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