https://www.makestead.ca/ 2026-09-27 https://www.makestead.ca/episodes/underwater-tunnels/ 2026-09-27 https://www.makestead.ca/assets/tunnel-cutaway.webp How Are Underwater Tunnels Built Without Flooding? Discover how underwater tunnels are built: boring beneath the seabed, immersing sealed sections, and making watertight joints. Watch the MAKESTEAD explanation. https://www.youtube-nocookie.com/embed/LBELoHWYhW8 2026-09-25 https://www.makestead.ca/episodes/3d-printed-homes/ 2026-09-27 https://www.makestead.ca/assets/printed-wall-cover.webp Are 3D-Printed Homes Really Cheaper? Are 3D-printed homes cheaper? Learn what a construction printer builds, what still needs to be added, and how to compare the cost of finished homes fairly. https://www.youtube-nocookie.com/embed/VpvvEshgm20 2026-09-26 https://www.makestead.ca/episodes/arches/ 2026-09-27 https://www.makestead.ca/assets/arches-cover.webp How Do Arches Stay Standing? Learn how stone arches stay standing through compression, outward thrust and strong supports. Watch MAKESTEAD explain the force path behind the curve. https://www.youtube-nocookie.com/embed/zQHOmlsaW64 2026-09-27