Grady Hillhouse is an author, civil engineer, and science communicator widely known for his educational video series Practical Engineering, currently one of the largest engineering channels on YouTube …

Jan 20, 2026 · Feb 3, 2026 The Hidden Engineering of Runways Jan 20, 2026 Recreating an Ancient Pump (with no moving parts) Jan 6, 2026

Jan 6, 2019 · I’m Grady, and this is Practical Engineering. One of the fundamental problems we face in engineering, and really life in general, is that we can’t predict the future.

Each month, millions of people tune in to Practical Engineering to see Grady Hillhouse’s idiosyncratic online video series about infrastructure and the human-made world.

Oct 21, 2025 · The falls themselves have required quite a bit of engineering over the years, and they’ve even been shut off for maintenance. Let’s take a little tour of the Niagara Peninsula (even though it’s …

Jun 4, 2024 · I’m Grady, and this is Practical Engineering. In today’s episode, we’re talking about how power actually flows on the grid. I’ve built a model power grid here in the shop. (Not the first time I’ve …

Mar 18, 2025 · I’m Grady, and this is Practical Engineering. The original bridge over the Seekonk River was finished in 1930. Part of that old bridge now serves as a pedestrian crossing and bike link. It’s a …

Aug 6, 2024 · Once you know the base soil’s grain size distribution, there are a number of engineering methods to find a material that will both allow water to flow while still holding the soil back.

Jan 20, 2026 · I’m Grady, and this is Practical Engineering. A fully loaded semi truck usually weighs on the order of 80,000 pounds (or 36 metric tonnes) and, depending on what state you’re in, legally …

Mar 5, 2024 · I’m Grady, and this is Practical Engineering. On today’s episode, we’re talking about hydropower! This is McNary Dam, a nearly 1.5-mile-long hydroelectric dam across the Columbia …