17 Jun 2020 #industrial #manchesterhistory #canals
Manchester’s story continues with the introduction of the world’s first industrial canal system. We’ start by looking at why the River Irwell didn’t become Manchester’s primary port or its biggest waterway as the industrial era expanded and trade needed to move in and out of the city fast.
Then we move onto the only other option – canals. First the famous Bridgewater Canal – its origins, its source at Worsley Delph, and its terminus at the new Castlefield Basin in Manchester city centre.
Then we look at how the basin itself was constructed, and how it encouraged some of the world’s earliest and largest industrial-era warehouses.
Finally, we’ll see how other canals soon surrounded the Manchester region, including those that cut through the city centre itself.
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Beeherenow
#industrial #manchesterhistory #canals #bridgewater
Music:
‘The Ash Grove’ – Dodworth Brass Band
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5 Jun 2026
Something is disrupting GPS signals across Europe. Sponsored by Ground News. Go to https://ground.news/Ve for 40% off the unlimited Vantage plan.
If you’re looking for a molecular modelling kit, try Snatoms, a kit I invented where the atoms snap together magnetically – https://ve42.co/SnatomsV
Sign up for the Veritasium newsletter for weekly science updates – https://ve42.co/Newsletter
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0:00 What is jamming Europe’s GPS?
4:43 How does GPS work?
10:46 How easy is it to jam GPS?
12:18 The Hunt To Find The Jammer
17:12 Who are the possible culprits?
20:06 The Investigation Goes Public
23:00 Narrowing In On The Jammer
25:15 Cosmos 2546
28:25 A Secret Messaging Service?
29:19 What happens if we lose GPS?
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Special thanks to the experts and collaborators who made this video possible:
Professor Todd Humphreys and Dr Zach Clements at the University of Texas at Austin, whose research this story is based on – thank you for sharing your data, your time, and the inside story of the hunt.
Ramsey Faragher, for the brilliant interview, feedback and stories that helped to shape this video.
Richard D. Easton, for helping us understand the history of GPS.
Dana Goward, President of the Resilient Navigation and Timing Foundation, for providing context on interference and alternative systems.
Richard Bowden and Luis Enrique Aguado from GMV for sharing their independent work tracing the source of the interference.
Ben Watts, for sharing his first-hand experience of GPS jamming and spoofing from the cockpit.
KeepTrack (https://keeptrack.space/) for generously giving us access to their satellite-tracking software, which we used to visualise the search through 15,000 satellites for the culprit. And to GPSWise (https://gpswise.aero/) for kindly providing their software which we used to visualise GPS jamming and spoofing.
Bartosz Ciechanowski, whose interactive GPS explainer (https://ciechanow.ski/gps/) was a great resource for research and the basis for one of our technical animations. Thank you for allowing us to build on your work.
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References:
Clements, Z. L., Kriezis, A., & Humphreys, T. E. (2026). Chasing Lightning: Detecting, Characterizing, and Identifying a Powerful Space-Based GNSS Interference – https://ve42.co/GNSSInterference
The rest here: https://ve42.co/GPSJammingRefs
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msamba 