In this video, Mike machines a precision drilling attachment.
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Thanks to the BIU for letting us use their SEM: www.southampton.ac.uk/biu
„Dem Frieden verpflichtet“ ist ein DDR-Dokumentarfilm des Filmstudios der NVA über das Großmanöver „Waffenbrüderschaft 80“, das vom 4. bis 12. September 1980 auf dem Gebiet der DDR stattfand.
Inhaltlich zeigt der Film das Manöver als große Demonstration militärischer Geschlossenheit der Staaten des Warschauer Vertrags. Im Mittelpunkt stehen die gemeinsame Übung verschiedener Teilstreitkräfte, die Zusammenarbeit der „Bruderarmeen“ und die Darstellung der NVA als verlässlicher Bestandteil des sozialistischen Militärbündnisses. Das Manöver selbst war eines der größten auf DDR-Gebiet: Beteiligt waren rund 40.000 Soldaten aus der DDR, der Sowjetunion, Polen, der ČSSR, Rumänien, Ungarn und Bulgarien.
Der Film folgt dabei weniger einer individuellen Handlung als einer propagandistisch geprägten Dokumentarstruktur: Truppenbewegungen, Gefechtsübungen, Luft- und Seestreitkräfte, Artillerie, Fallschirmjäger und koordinierte Gegenangriffe werden als Beweis für Einsatzbereitschaft, Disziplin und internationale Solidarität inszeniert. Die Botschaft des Films ist deutlich: Militärische Stärke wird nicht als Aggression, sondern als Beitrag zur Sicherung von Frieden und Sozialismus dargestellt. Das passt auch zum Motto des Manövers: „Vereint für Frieden und Sozialismus – dem Feind keine Chance“.
Aus heutiger Perspektive ist „Dem Frieden verpflichtet“ vor allem als zeitgeschichtliches Dokument interessant. Er zeigt nicht nur militärische Abläufe, sondern auch die politische Selbstdarstellung der DDR und des Warschauer Pakts am Beginn der 1980er-Jahre. Der Film vermittelt ein offizielles Bild von Stärke, Bündnistreue und Friedensrhetorik, bleibt dabei aber klar innerhalb der Sprache und Ideologie staatlicher DDR-Militärpropaganda.
_Closed Conduit Hydraulics_ is a place where intuitions don’t always serve you well
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The garden hose is a backyard version of the same problem engineers and operators deal with every day: how much flow can you get through a real system, and what does it cost you in pressure?
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Practical Engineering is a YouTube channel about infrastructure and the human-made world around us. It is hosted, written, and produced by Grady Hillhouse. We have new videos posted regularly, so please subscribe for updates. If you enjoyed the video, hit that ‘like’ button, give us a comment, or watch another of our videos!
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DISCLAIMER
____________________________________
This is not engineering advice. Everything here is for informational and entertainment purposes only. Contact an engineer licensed to practice in your area if you need professional advice or services. All non-licensed clips used for fair use commentary, criticism, and educational purposes.
SPECIAL THANKS
____________________________________
This video is sponsored by SendCutSend.
Stock video and imagery provided by Getty Images, Shutterstock, Pond5, and Videoblocks.
Video by Grady Hillhouse
Edited by Wesley Crump
Produced by Ralph Crewe
Graphics by Nebula Studios
MUSIC CREDITS
____________________________________
Tapped Out from Epidemic Sound
Practical Engineering Theme composed by Caleb Winters (https://beacons.ai/calebwinters)
Water and Light composed by Caleb Winters
Woodland Expedition composed by Caleb Winters
Tonic and Energy by Elexive is licensed under a Creative Commons Attribution License
Source: https://www.youtube.com/watch?v=U6fBPdu8w9U
This year is the 50th anniversary of the Teton Dam Failure
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Teton was one of the most dramatic and catalyzing dam failures of the 20th century in the US.
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Signed copies of my book (plus other cool stuff) are available here: https://store.practical.engineering/
Practical Engineering is a YouTube channel about infrastructure and the human-made world around us. It is hosted, written, and produced by Grady Hillhouse. We have new videos posted regularly, so please subscribe for updates. If you enjoyed the video, hit that ‘like’ button, give us a comment, or watch another of our videos!
CONNECT WITH ME
____________________________________
Website: http://practical.engineering
Twitter: https://twitter.com/HillhouseGrady
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Patreon: http://patreon.com/PracticalEngineering
SPONSORSHIP INQUIRIES
____________________________________
Please email my agent at practicalengineering@standard.tv
DISCLAIMER
____________________________________
This is not engineering advice. Everything here is for informational and entertainment purposes only. Contact an engineer licensed to practice in your area if you need professional advice or services. All non-licensed clips used for fair use commentary, criticism, and educational purposes.
SPECIAL THANKS
____________________________________
This video is sponsored by Nebula.
Stock video and imagery provided by Getty Images, Shutterstock, Pond5, and Videoblocks.
Video by Grady Hillhouse
Edited by Wesley Crump
Produced by Ralph Crewe
Graphics by Nebula Studios
MUSIC CREDITS
____________________________________
Building Blocks from Epidemic Sound
Aural Imprints from Epidemic Sound
Addicted To Me from Epidemic Sound
Magnified XY from Epidemic Sound
The Road Less Travelled from Epidemic Sound
Tonic and Energy by Elexive is licensed under a Creative Commons Attribution License
Source: https://www.youtube.com/watch?v=U6fBPdu8w9U
An overview of fuse plug and fusible gate spillways
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Most of the largest dams in the world have gated spillways with whole teams of staff dedicated to their operation. But it’s still a challenge, especially for small owners like cities. So there is another option, kind of in between controlled and uncontrolled spillways, and its use is growing worldwide.
Watch this video ad-free on Nebula: https://nebula.tv/videos/practical-engineering-spillways-that-fail-on-purpose
Signed copies of my book (plus other cool stuff) are available here: https://store.practical.engineering/
Practical Engineering is a YouTube channel about infrastructure and the human-made world around us. It is hosted, written, and produced by Grady Hillhouse. We have new videos posted regularly, so please subscribe for updates. If you enjoyed the video, hit that ‘like’ button, give us a comment, or watch another of our videos!
CONNECT WITH ME
____________________________________
Website: http://practical.engineering
Twitter: https://twitter.com/HillhouseGrady
Instagram: https://www.instagram.com/practicalengineering
Reddit: https://www.reddit.com/r/PracticalEngineering
Facebook: https://www.facebook.com/PracticalEngineerGrady
Patreon: http://patreon.com/PracticalEngineering
SPONSORSHIP INQUIRIES
____________________________________
Please email my agent at practicalengineering@standard.tv
DISCLAIMER
____________________________________
This is not engineering advice. Everything here is for informational and entertainment purposes only. Contact an engineer licensed to practice in your area if you need professional advice or services. All non-licensed clips used for fair use commentary, criticism, and educational purposes.
SPECIAL THANKS
____________________________________
This video is sponsored by SendCutSend.
Stock video and imagery provided by Getty Images, Shutterstock, Pond5, and Videoblocks.
Video by Grady Hillhouse
Edited by Wesley Crump
Produced by Ralph Crewe
Graphics by Nebula Studios
MUSIC CREDITS
____________________________________
Addicted To Me from Epidemic Sound
Practical Engineering Theme composed by Caleb Winters (https://beacons.ai/calebwinters)
Tapped Out from Epidemic Sound
Water and Light composed by Caleb Winters (https://beacons.ai/calebwinters)
Building Blocks from Epidemic Sound
Tonic and Energy by Elexive is licensed under a Creative Commons Attribution License
Source: https://www.youtube.com/watch?v=U6fBPdu8w9U
Encuentra tu profesor particular en italki (de alemán, de inglés o del idioma que necesites) 🎉Usa el código LINGU2026 para 5 € de descuento en tu primera clase (de mínimo 10 €):
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In Tips From A Shipwright – Episode 23 of the Building Orca series, Lou takes the next step in shaping the legendary hull by building Mold #5.
This episode dives deep into the precision side of boatbuilding, where accuracy on the loft floor translates directly to the final form. Lou walks through how to properly offset your lines to account for planking thickness, ensuring the finished hull lands exactly where it should. From there, he demonstrates how to transfer those lofted lines onto the mold stock, keeping everything fair and true.
You’ll also learn how to:
Read and pull bevel angles directly off the loft floor
Execute progressive bevel cuts for a clean, accurate fit
Assemble and align mold sections while only laying out half the mold—letting symmetry do the rest
Whether you’re a seasoned builder or just getting into traditional methods, this episode breaks down techniques that are fundamental to strong, accurate mold construction.
A big thank you to Arnold Lumber for supplying all the wood that makes these molds possible.
Subscribe and follow along as the Orca continues to take shape—one mold at a time.
We want to thank all our supporters and followers for helping us get this far! Keep following us on this journey and check out our website and social feeds for additional content.
Portraits of Power - Mohammad Reza Pahlavi - Politics of Oil
Narrated by Henry Fonda
Mohammad Rezā Shāh Pahlavī (26 October 1919 -- 27 July 1980) was the ruler of Iran (Shah of Iran) from 16 September 1941 until his overthrow by the Iranian Revolution on 11 February 1979. He took the title Shāhanshāh ("Emperor" or "King of Kings") on 26 October 1967. He was the second and last monarch of the House of Pahlavi of the Iranian monarchy.
Lifestyle in Teheran, modern country, growth of new Iran, poverty of the countryside, father of Mohammed Reza Pahlavi, the old shah, Mustafa Kemal Atatürk, 1939, marriage with Fawzia of Egypt, in World War II the British and the Russians joint forces against the Germans, Persia's strategic importance in World War II, forced abdication and exile of the old shah, Mohammed Reza Pahlavi was the puppet of the allied warlords, Russians in Azerbaijan, failed assassination attempt 1949, 1951 remarried with Soraya Esfandiary, born no children to the Shah, Mohammad Mosaddegh, international crisis, united states concluded that the turbulence concluded by Mosaddegh was playing into soviet hands and they would have to get rid of him, president Eisenhower authorised the CIA-operation Ajax, speech at the United Nations, visit to the pope, land back to the peasants, fortunes from the oil went into the hand of old families, modern entrepreneurs, real estate speculators, foreign investors, 1971, 2.500 year celebration of the Persian Empire. The intent of the celebration was to demonstrate Iran's long history and to showcase its contemporary advancements under Mohammad Reza Pahlavi, the Shah of Iran. Ayatollah Khomeini, Iranian Revolution, universities, technology, science, hospitals,
Hamburg im Jahr 1938: Diese seltenen Farbaufnahmen zeigen Szenen einer Reichstagung der nationalsozialistischen Organisation „Kraft durch Freude“.
Straßen und Plätze der Stadt sind dicht mit Hakenkreuzfahnen geschmückt. Festumzüge mit Motivwagen, Trachtengruppen und Tanzgruppen prägen das Bild dieser propagandistischen Großveranstaltung.
„Kraft durch Freude“ war eine Massenorganisation des NS-Staates, die Freizeit- und Reiseangebote organisierte, zugleich aber auch der politischen Mobilisierung und Propaganda diente.
A little tour of the Los Angeles Aqueduct system
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The story of the LA aqueduct in a nutshell: The project seemed obvious from an engineering perspective. But it many ways, it was not only unscrupulous, but also short-sighted.
Watch this video ad-free on Nebula: https://nebula.tv/videos/practical-engineering-the-los-angeles-aqueduct-is-wild
Signed copies of my book (plus other cool stuff) are available here: https://store.practical.engineering/
Practical Engineering is a YouTube channel about infrastructure and the human-made world around us. It is hosted, written, and produced by Grady Hillhouse. We have new videos posted regularly, so please subscribe for updates. If you enjoyed the video, hit that ‘like’ button, give us a comment, or watch another of our videos!
CONNECT WITH ME
____________________________________
Website: http://practical.engineering
Twitter: https://twitter.com/HillhouseGrady
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Facebook: https://www.facebook.com/PracticalEngineerGrady
Patreon: http://patreon.com/PracticalEngineering
SPONSORSHIP INQUIRIES
____________________________________
Please email my agent at practicalengineering@standard.tv
DISCLAIMER
____________________________________
This is not engineering advice. Everything here is for informational and entertainment purposes only. Contact an engineer licensed to practice in your area if you need professional advice or services. All non-licensed clips used for fair use commentary, criticism, and educational purposes.
SPECIAL THANKS
____________________________________
This video is sponsored by Nebula.
Stock video and imagery provided by Getty Images, Shutterstock, Pond5, and Videoblocks.
Video by Grady Hillhouse
Edited by Wesley Crump
Produced by Ralph Crewe
Graphics by Nebula Studios
MUSIC CREDITS
____________________________________
Recycled Mood from Epidemic Sound
Cave Thoughts composed by Donovan Bullen (Nebula Studios)
Magnified XY from Epidemic Sound
Building Blocks from Epidemic Sound
All Parts Equal from Epidemic Sound
Tonic and Energy by Elexive is licensed under a Creative Commons Attribution License
Source: https://www.youtube.com/watch?v=U6fBPdu8w9U
Doing a little plug for one of our biggest sponsors, Powermatic.
They just rolled out “The Powermatic Difference” — upgraded machines, better support, and a whole new experience built for today’s woodworkers. Same heavy cast iron. Just leveled up. Check them out today!
An overview of seismic base isolation for buildings
Earthquakes are such a challenge in engineering: unpredictable both in time and intensity. But I love this solution of base isolation because it’s so intuitive. It’s something my five-year-old would come up with: just put a suspension system on a building.
Watch this video ad-free on Nebula: https://nebula.tv/videos/practical-engineering-earthquakeproof-foundations
Signed copies of my book (plus other cool stuff) are available here: https://store.practical.engineering/
Practical Engineering is a YouTube channel about infrastructure and the human-made world around us. It is hosted, written, and produced by Grady Hillhouse. We have new videos posted regularly, so please subscribe for updates. If you enjoyed the video, hit that ‘like’ button, give us a comment, or watch another of our videos!
CONNECT WITH ME
____________________________________
Website: http://practical.engineering
Twitter: https://twitter.com/HillhouseGrady
Instagram: https://www.instagram.com/practicalengineering
Reddit: https://www.reddit.com/r/PracticalEngineering
Facebook: https://www.facebook.com/PracticalEngineerGrady
Patreon: http://patreon.com/PracticalEngineering
SPONSORSHIP INQUIRIES
____________________________________
Please email my agent at practicalengineering@standard.tv
DISCLAIMER
____________________________________
This is not engineering advice. Everything here is for informational and entertainment purposes only. Contact an engineer licensed to practice in your area if you need professional advice or services. All non-licensed clips used for fair use commentary, criticism, and educational purposes.
SPECIAL THANKS
____________________________________
This video is sponsored by SendCutSend.
Stock video and imagery provided by Getty Images, Shutterstock, Pond5, and Videoblocks.
Video by Grady Hillhouse
Edited by Wesley Crump
Produced by Ralph Crewe
Graphics by Nebula Studios
MUSIC CREDITS
____________________________________
Aural Imprints from Epidemic Sound
Practical Engineering Theme composed by Caleb Winters (https://beacons.ai/calebwinters)
Woodland Expedition composed by Caleb Winters (https://beacons.ai/calebwinters)
Cactus Song from Epidemic Sound
Tonic and Energy by Elexive is licensed under a Creative Commons Attribution License
Source: https://www.youtube.com/watch?v=U6fBPdu8w9U
In this episode of Tips From A Shipwright, Lou walks through how he modified our new Powermatic 20-inch Bandsaw for precision progressive beveling.
Progressive beveling is a critical step in traditional wooden boatbuilding, and Lou breaks down the setup so it can be applied to any bandsaw — not just a dedicated shipwright’s saw. He explains the angle adjustments, alignment considerations, and workflow needed to achieve consistent, repeatable bevels with accuracy and efficiency.
This demonstration sets the stage for the next major phase of the Orca build, where we’ll begin fabricating molds. Proper bevel preparation now ensures tight fits, clean glue lines, and fair lines down the road.
If you’re interested in boatbuilding, advanced bandsaw setup, or refining your shop processes, this is a detailed, practical walkthrough you won’t want to miss.
Subscribe and follow along as we move deeper into the Orca project.
Check out our new merchandise, including our limited run of ORCA Plaques, at our webstore:
https://tipsfromashipwright.com/store-2/
We want to thank all our supporters and followers for helping us get this far! A special thanks to Powermatic for the bandsaw! Keep following us on this journey and check out our website and social feeds for additional content.
Lou from Tips From The Shipwright is stepping out of the boatyard and into the garage to offer something special for sale — his customized 1958 Harley-Davidson Panhead.
In this video, Lou walks you through the entire bike, detailing the motor, frame, custom components, upgrades, and the craftsmanship that makes this classic Panhead stand out. He covers the build history, condition, performance, and the small details that only a true enthusiast would appreciate. If you know vintage Harleys, you know how rare and iconic a ’58 Panhead is — and this one has been thoughtfully customized while keeping the spirit of the original machine alive.
This motorcycle is for sale. Serious inquiries only. If you’re interested, call the phone number below to discuss details.
1 (401) 684-2032
Thanks for watching, and stay tuned for more hands-on boatbuilding!
We want to thank all our supporters and followers for helping us get this far! Keep following us on this journey and check out our website and social feeds for additional content.
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