Greg Bernhardt said:Effective immediately, in General Discussion, the topic of politics as a thread starter has been banned. Political points/discussion may be used within threads but a thread may not have a political origin.
Threads in Current News Events forum may have political origin, but within the framework of a specific news event. We no longer will entertain opinion pieces and open ended thoughts with no story attached. Here are the revised guidelines: https://www.physicsforums.com/threads/must-read-current-events-guidelines.113181/
All threads dated 4-3-16 and earlier are exempt.
Digging a trench filled with water is a more cost-effective and environmentally friendly method of creating a barrier compared to building a traditional wall. It also allows for easy drainage and maintenance.
A water-filled trench can be just as effective as a wall in preventing intruders or controlling water flow. It creates a physical barrier and the water can also act as a deterrent for animals or humans.
One potential drawback is the need for a constant water supply to keep the trench filled. There may also be maintenance and safety concerns, such as preventing stagnant water or ensuring proper drainage.
Aside from cost-effectiveness and environmental friendliness, a water-filled trench can also serve as a natural habitat for aquatic plants and animals. It can also add aesthetic value to a property.
The depth and width of a water-filled trench will depend on its intended purpose. For security purposes, a deeper and wider trench may be needed to prevent intruders from crossing. For water control, the depth and width will depend on the expected water flow and drainage needs.