From Practical Engineering. Go to https://NordVPN.com/practicalengineering to get 75% off a 3 year plan. Use code PRACTICALENGINEERING to get an extra month for free. The modern world depends on electricity. It’s a crucial resource, especially in urban areas, but electricity can’t be created, stored, and provided at a later time. The instant it’s produced, it’s…

From Practical Engineering. The first 500 people to click get 2 months of Skillshare Premium free: http://skl.sh/practicalengineering4 We normally build a dam to hold water back and store it for use in water supply, irrigation, hydropower, or flood control. But sometimes we have to let some water go. Whether we need it downstream or the…

From Practical Engineering. Start your Squarespace free trial at http://www.squarespace.com/practicalengineering and use code PRACTICALENGINEERING to get 10% off your first purchase. Traffic management in dense urban areas is an extremely complex problem with a host of conflicting goals and challenges. One of the most fundamental of those challenges happens at an intersection, where multiple streams…

From Practical Engineering. A quick overview of how we build underwater structures. Get $80 off your first month of Hello Fresh: https://bit.ly/2VGUxzl and use code practical80. Oceans, rivers, and lakes are often beautiful, but they’re not necessarily convenient places to build things. Yet, many types of the infrastructure we depend on every day, including wharves,…

From Practical Engineering. Start your Squarespace free trial today at http://www.squarespace.com/practicalengineering and use code PRACTICALENGINEERING to get 10% off your first purchase. Dams serve a wide variety of purposes from hydropower to flood control to storage of water for municipal and industrials uses. But when a dam’s useful purpose fades away, the structure itself still…

From Practical Engineering. The first 500 people will get two months of Skillshare Premium for FREE: https://skl.sh/practicalengineering3 A weir is a small dam built across a river to control the upstream water level. Weirs have been used for ages to control the flow of water in streams, rivers, and other water bodies. Unlike large dams…

From Practical Engineering. Go to https://NordVPN.com/practicalengineering to get 75% off a 3 year plan. Use code PRACTICALENGINEERING to get an extra month for free. Engineers need to be able to predict how water will behave in order to design structures that manage or control it. And fluids don’t always behave the way you’d expect. On…

From Practical Engineering. Purpose and function of elevated water storage tanks. The job of finding enough water, making it safe to use, and then reliably distributing it to the system customers with almost no downtime is a monumental task that requires a lot of infrastructure. And, probably the most visible component of a public water…

From Practical Engineering. Sometimes conventional reinforcement isn’t enough. The basics of prestressed concrete. Prestressing reinforcement doesn’t necessarily make concrete stronger. But, it does increase the serviceability of concrete members by reducing the amount of deflection under load. This video explains the two most common types of prestressed concrete: pre-tensioned and post-tensioned. Prestressed concrete is used…

From Practical Engineering. Comparing modern concrete to that of the western Roman empire. More Videos About Concrete: – What is Concrete? (https://www.youtube.com/watch?v=UOHURuAf5iY) – Why Concrete Needs Reinforcement (https://www.youtube.com/watch?v=cZINeaDjisY) -Does Rebar Rust? (https://www.youtube.com/watch?v=PLF18H9JGHs) In this video, I discuss a few modern techniques that help improve design life of concrete, including roller compacted concrete (RCC) and water…

From Practical Engineering. Check out the first two videos on concrete if you haven’t seen them already: – What is Concrete? (https://www.youtube.com/watch?v=UOHURuAf5iY) – Why Concrete Needs Reinforcement (https://www.youtube.com/watch?v=cZINeaDjisY) While steel reinforcement solves one of concrete’s greatest limitations, it creates an entirely new problem: Corrosion of embedded steel rebar is the most common form of concrete…

From Practical Engineering. Wind can be one of the most critical and complicated loads on civil structures. The case of the Tacoma Narrows bridge is a well-known cautionary tale that’s discussed in engineering and physics classrooms across the world. Both resonance from vortex shedding and aeroelastic flutter contributed to the failure. When you push the…

From Practical Engineering. How simple reinforcement is used to prevent collapse of rock tunnels. Tunnels play an important role in our constructed environment as passageways for mines, conveyance for utilities, and routes for transportation. Rock bolts are a type of reinforcement for stabilizing rock excavations, usually made from steel bars or bolts. This simple construction…

From Practical Engineering. The basics of fluid cavitation, including demonstration from AvE. If you subject a fluid to a sudden change in pressure, some interesting things can happen. You can cause tremendous damage to moving parts, or you can harness this destructive power in many beneficial ways. Thanks to AvE for supplying the demonstration for…

From Practical Engineering. Ever heard of a muon? I hadn’t either until I stumbled upon this awesome project! Now I can detect and count these cosmic particles from my desktop – and you can too. Cosmic Watch: http://cosmicwatch.lns.mit.edu/ -Patreon: http://patreon.com/PracticalEngineering -Website: http://practical.engineering Tonic and Energy by Elexive is licensed under a Creative Commons Attribution License…