This was a guest video on Tom Scott's channel about the Hyatt Regency Walkway Collapse.Read More
When you run a new utility line, whether it be electrical, gas, water, sewer, or communications, you basically have two choices for where to put it: overhead strung across poles, or below the ground. Today we’re talking about that second one, subsurface utilities. What’s that Infrastructure is a series where we divulge and discover the manmade world around us, and below us too.
Always call 811 before you dig (or the equivalent outside the US).
In this video, we’re talking about computational hydraulic river modeling. HEC-RAS is ubiquitous in the industry, and many H&H engineers in the U.S. use it regularly for various applications including floodplain mapping, reservoir simulations, breach analysis of dams, and even fluvial geomorphology.Read More
The damage and destruction caused by Hurricane Matthew this month has got flooding on my mind. Water is one our most basic needs, but it also can be our worst enemy. You may know that managing water is one of the most important aspects of civil engineering, so today we’re talking about hydraulic structures.Read More
We all know that magnets are pretty much voodoo: invisible forces acting on the real world in unknown and unexpected ways. But engineers have developed a number of methods to harness that magic to perform useful and beneficial tasks, including answer that age old question: How do you measure the flow of a liquid in a pipe?Read More
This is the first episode of a new series I started where I talk about miscellaneous pieces of infrastructure, including viewer-submitted photos. Click the WTI link at the top of the page if you'd like to submit your own photo!
Don't let anyone try to convince you that the earth is a sphere! It's actually closer to an ellipsoid. How does your airline pilot know which direction to head when he’s over the ocean with no landmarks? How do we know the exact boundaries between parcels of land and between states and countries?Read More
Engineers that work with fluids need a solid understanding of how they behave. There’s one branch of fluid mechanics that plays a role in areas all across our lives, yet it's not always so intuitive.Read More
A Japanese company plans to create an artificial meteor shower for the opening ceremony of the 2020 summer Olympics in Tokyo. What engineering challenges will they face in creating these synthetic cygnids?Read More
Dirt is probably the cheapest and simplest construction material out there, but it's not very strong compared to other choices. Luckily geotechnical engineers have developed a way to strengthen earthen materials with almost no additional effort - Mechanically Stabilized Earth (aka MSE or Reinforced Soil). If you look closely, you'll see MSE walls are everywhere.Read More
In 2009, the an MLB committee determined that the increase in the use of maple baseball bats (over the traditional ash bats) was a primary reason for the rise in bats breaking during games. But why?Read More