I went to that place in Munich, really mesmerizing to watch people drop in on a wave in the middle of a park, in the middle of a city! The beer garden was pretty nice too 😆
Same here- was visiting with relatives at the park there and eventually came across someone dressed like they were ready to go surfing. I was a little confused at first, but later seeing the jump was really interesting! Wasn't old enough to enjoy the beer, but I'll take your word for it and hopefully go back there someday haha
Huge thanks to my supporters on Patreon. Every buck in the hat makes it easier for me to increase the quality and quantity of videos like this. Want exclusive access to Practical Engineering content? Go to patreon.com/PracticalEngineering
you should have a look at the southern end of the gold coast, QLD, Australia just below coolangatta beeach there is a headland and further down just past the NSW border you may be able to see a large one pipe the goes for about 200m out from the coast. This a part of a sandbipass aimed at not clogging up the outlet with sand and also providing sand to the coolangatta beach and kirra beach due to their position in a shadow zone
This video is really cool and informative. Could you do a video on the 'artificial glaciers' built in Ladakh, India by Mr. Chewang Norphel (a retired civil engineer) ? Thanks again for this video.
I would be willing to bet that many of your viewers, like myself, never had an interest in infrastructure before.. it's just that you do such a good job pointing out the cool physics and engineering bits that it becomes interesting.
You should make a series "How to draw like an engineer" It would be awsome. I have always wanted to make drawing of my imagineable creation. Awsome videos keep up the good work!
honestly it's fairly simple. draw on graph paper, use a ruler/compass for every line, and if you want to make it look more professional go over all of it in a high-quality pen.
The name of the subject you are looking for is "Technical Drawing". There are books on the subject, though we were taught it in middle school. It is a shame that is clearly no longer the case.
My experience is that most engineers do not know how to draw. It is the draughtsman (draughtsperson? or “the draught”?) that knows how to draw. That isn’t to say engineers do not have draughting skills...some do (I do), but most (especially recent grads) do not.
So interesting learning the purpose behind so many engineered structures ... curved weirs ... piano key weirs ... these things may seem like subtle points to you, but please keep sharing and we'll all keep learning!
I used to do construction work when I was younger. mostly grading and pipe laying. In that time I became wildly fascinated by modern and not so modern infrastructure! I'm so happy I found this channel! Makes me wish I took more pictures during my time doing that work.
Thanks for sharing! I remember doing a lab in fluid mechanics where we created a hydraulic jump in a controlled environment. In my opinion that was one of the coolest phenomena dealing with fluid flow. Somehow I decided to go into structural engineering instead of water resources... Not sure what I was thinking. These projects seem way cooler than any that I've ever worked on.
There are a couple of those corner reflectors on the moon: they are used to measure the distance to the moon with lasers. I think Destin at Smarter Every Day did a video about it.
I recently came across your videos and I have to say they are wonderful! Informative, not too complex (for us NON engineers), and entertaining. Your vast range of subjects is just to my liking too! I often wonder about just the things you make videos of. Thank you!!!
Thank you for taking the time out of your day to provide me with more information to surprise my family and friends with! I didn't know so much thought went into the world all around me, and it's such a testament to the strength and intelligence humankind is capable of, but also a testament to just how crazy our natural world is as well!
I love your channel, i'm a different kind of engineer but love all this stuff and your elegant ability to explain the complicated. I particularly like the way you fuse your woodworking and engineering skills together to make models of these processes
There's a huge weir on the river where I live. Earlier in the year when there was massive flooding, a large barge got washed over it, filled with water and debris and spent about a month wedged across it. This was actually quite fortunate as it stopped other large things from crashing into the main road bridge in town.
the marker next to the man hole cover reminds of a geological benchmark, for surveying purposes. Speaking of, that would be a cool video, all about surveying. you could include benchmarks, and monument boxes.
In Calgary, they replaced a Weir for taking some river water off into a canal, they made it into 2 sets of rapids, a Class 3 main channel and a Class 2 side channel, making it navigable. I have seen some large eye bolts in the top of some of the rocks... likely for emergency rescue work, if needed!
I made it into the video! Yes! Thank you for continuing to make such amazing, educational videos :) I get excited every time I see one of these pop into my subscription feed. Can't wait to see what's next!
Very interesting video, thank you! I know Pulteney Bridge (in Bath, where the weir is) from my childhood, as we used to go shopping there. I remember there was a piano shop that was actually inside the bridge, and I loved looking out of its windows onto the water.
I would love a video about weirs. They seem like pretty awesome structures, and I'm sure there can be a lot of cool math involved in designing them to be more compact.
I absolutely love this video series, and your channel! my problem, however, is I study a different field, so when I watch your content, I learn new material. as much as I would love to contribute media to the series with infrastructure in my area, I am not sure what to look for, besides the things I have started to notice after you mention them in these videos. Either way, I look forward to more content and more knowledge! thanks to you and all who help you!
It's so cool watching this after watching more recent videos. "I would love to have a model and make a video about hydraulic jumps one day", yet that was the first video of yours I saw :)
I'm doing something that like 95% of people don't do. I'm going back and watching the videos from the beginning of your channel because they are so good. Apparently scrolling is very difficult
That wave in Munich is behind a bridge where an underground passage of the Eisbach river exits into a park (Englischer Garten). For several years you could only surf it in times of high water level but few years ago they built the wooden structure on the left to channel the water so it forms nearly all year. Fun fact: Parks are owned by the state, not the city. The state prohibits this type of usage, so the city of Munich "bought" around 50m of the river at that point so the surfers could stay there ;)
That river in Munich is actually a artificial river called Eisbach (Ice brook) created to make the park it goes through look more impressive or to serve as a landscaping feature. It's a side arm off the river Isar, a natural river that runs through Munich. It was created back in 1789 by a royal landscaper as part of the a system of little brooks through the park called English garden.
Great channel from one PE to another. About that picture of the ship entering the Aransas Pass jetty, I doubt he’s going to turn up the the intercostal waterway as it is only 9 to 10 feet deep. It’s only used by barges and pleasure craft, and few shrimpers.
I was really interested by that weir information. Plus I recognised the one in Bath from a British crime drama I saw years ago. I’m in Australia, but that weir featured so heavily in the TV show that I recognised it instantly.
Making a demo of a hydraulic jump is quite easy. Just hold a dinner plate face-up underneath your faucet. Near the impact point between the stream of water and the plate, there will be a small region of shallow water. That region will be surrounded by a hydraulic jump, which leads to deeper water.
3:39 Heyyy that's at Gallup Park on the Huron River! I used to walk there with my mom every day lol. Cool seeing a place you know on such a popular channel.
The marker you mentioned serves an additional purpose. If a material which can cause interference to a navigable waterway were to be spilled into a drain which dumps directly into a navigable waterway then federal cleanup funds can be made available. In addition federal environmental protection laws come into play which can mean file or other punishments for the offenders. Otherwise the fines/punishments would be local to the municipality or state.
Demonstrating an hydraulic jump is remarkably easy. Just open the faucet in to a kitchen sink. You'll notice that the water impacts the sink, speeds away from the vertical flow, travels along the surface of the sink, and then suddenly forms a circumferential boundary around the stream from the faucet. That boundary is the hydraulic jump. The more rapidly the water flows in to the sink, the wider the circumference of super-critical flow. A more abstract way to think of an hydraulic jump is sort of like a sonic boom for incompressible fluids, except with a jump instead of a boom. Unlike a sonic boom, very little thermal or pressure energy is lost across the super to subcritical transition. Instead of Mach numbers to describe the phenomenon, we use Froude numbers. The interesting thing about an hydraulic jump is that the velocity at the jump is precisely known. This feature of fluid dynamics has been used to build flow measurement devices for streams and sewer pipes. It is called a flume and these flumes have specific shapes designed to provide accurate flow measurements, without the elevation or head loss that a flow measurement weir would require.
Loved seeing the Port Aransas, Aransas Pass vid, you should do a follow up post Hurricane Harvey, my non-Engineer eye sees no change and 100% effectiveness of the Jetty, even after Mother Nature and all the floating man made items bashing into it (and there were many) Pray for Aransas Pass, Port Aransas and Rockport Texas, We took a Severe Beating but we are coming back!
Related to radar reflectors over rivers, overhead power cables stretching over rivers and straits have almost caused ships to run aground. Google "Chapter 13 radar navigation" and then text search for "Messina".
The wave in munich is basically like one of those engine-powered surfing attractions, but they use the natural water flow instead of a pump to provide the necessary flow over the concrete wave. Edit: It's just a concrete hump placed into the channelized river, not really a dam itself.
Currently laid in bed with Covid so decided to start at the very beginning. It’s weird hearing you say that you want to do a video about x y z in the future….I’ve already watched them. This must be what it’s like to time travel 😄
Yo, Grady, can you take on energy infrastructure? A lot of people don't seem to even know what a transformer is, let alone how high-voltage AC works and why we use such high voltages. PS - For anyone who's curious, Power = Current * Voltage High voltage = Lower current with the same power transferred nonetheless. Lower transport losses to heat due to smaller current.
The main reason why many streams and rivers were diverted underground was not lack of space for buildings, but because they had a tendency to spontaneously convert into disgusting open sewers. The problem and practice of diverting streams and rivers underground still persists in many parts of the world. Bringing them back to daylight is only done in countries where people have learned to not throw garbage to nearest waterway the first chance they get.
I have a more serious question regarding dams, and how the principles governing their creation can be applied at a smaller scale to individual homes during flood seasons. I am a strong survivor of hurricane Harvey and would like to know how to safeguard my parent's house against flooding in the future! The application in question is non-permanent deploy-able water dams that would protect the perimeter of one's house against flooding waters of up to 1 meter high (YES! 1 friggin meter!)
I think this series is asewome. But here's some feedback: instead of cramming as many as the viewers "letters" into the video, I would like to see just a little more depth in the analysis. The genious behind the structures is the gold nugget, and sometimes it seems a little rushed. So: more of the behind the scenes on the same pedagogic level as now, less examples. Do what you want with this feedback good sir!
New legislation coming into Wales (UK), all about Sustainable Drainage Solutions. This is to try and mimic the natural hydrology of an area and to keep storm-water at source rather than transferring it into a sewer system. I think this is happening in the USA (and China, google sponge city) as well. Should change the look of modern cities!
And you did make that Video about Hydraulic Jumps :)
I went to that place in Munich, really mesmerizing to watch people drop in on a wave in the middle of a park, in the middle of a city! The beer garden was pretty nice too 😆
Same here- was visiting with relatives at the park there and eventually came across someone dressed like they were ready to go surfing. I was a little confused at first, but later seeing the jump was really interesting! Wasn't old enough to enjoy the beer, but I'll take your word for it and hopefully go back there someday haha
Huge thanks to my supporters on Patreon. Every buck in the hat makes it easier for me to increase the quality and quantity of videos like this. Want exclusive access to Practical Engineering content? Go to patreon.com/PracticalEngineering
you should have a look at the southern end of the gold coast, QLD, Australia
just below coolangatta beeach there is a headland and further down just past the NSW border you may be able to see a large one pipe the goes for about 200m out from the coast. This a part of a sandbipass aimed at not clogging up the outlet with sand and also providing sand to the coolangatta beach and kirra beach due to their position in a shadow zone
This video is really cool and informative. Could you do a video on the 'artificial glaciers' built in Ladakh, India by Mr. Chewang Norphel (a retired civil engineer) ? Thanks again for this video.
3:30 "someday I'd like to build a demo and do a video about hydraulic jumps"
Coming to this video from that hydraulic jump video lol
always an interesting watch, keep 'em come'n!
I would be willing to bet that many of your viewers, like myself, never had an interest in infrastructure before.. it's just that you do such a good job pointing out the cool physics and engineering bits that it becomes interesting.
You should make a series "How to draw like an engineer" It would be awsome. I have always wanted to make drawing of my imagineable creation. Awsome videos keep up the good work!
honestly it's fairly simple. draw on graph paper, use a ruler/compass for every line, and if you want to make it look more professional go over all of it in a high-quality pen.
it just takes a long time.
The name of the subject you are looking for is "Technical Drawing".
There are books on the subject, though we were taught it in middle school. It is a shame that is clearly no longer the case.
My experience is that most engineers do not know how to draw. It is the draughtsman (draughtsperson? or “the draught”?) that knows how to draw. That isn’t to say engineers do not have draughting skills...some do (I do), but most (especially recent grads) do not.
@@svchineeljunk-riggedschoon4038 I was taught this stuff in high. Glad I was. May not be an engineer but I've used it a few times for DIY purposes
So interesting learning the purpose behind so many engineered structures ... curved weirs ... piano key weirs ... these things may seem like subtle points to you, but please keep sharing and we'll all keep learning!
I used to do construction work when I was younger. mostly grading and pipe laying. In that time I became wildly fascinated by modern and not so modern infrastructure! I'm so happy I found this channel! Makes me wish I took more pictures during my time doing that work.
Thanks for sharing! I remember doing a lab in fluid mechanics where we created a hydraulic jump in a controlled environment. In my opinion that was one of the coolest phenomena dealing with fluid flow. Somehow I decided to go into structural engineering instead of water resources... Not sure what I was thinking. These projects seem way cooler than any that I've ever worked on.
There are a couple of those corner reflectors on the moon: they are used to measure the distance to the moon with lasers.
I think Destin at Smarter Every Day did a video about it.
They are also used in road signs and bycycle reflectors.
I recently came across your videos and I have to say they are wonderful! Informative, not too complex (for us NON engineers), and entertaining. Your vast range of subjects is just to my liking too! I often wonder about just the things you make videos of. Thank you!!!
Thank you for taking the time out of your day to provide me with more information to surprise my family and friends with!
I didn't know so much thought went into the world all around me, and it's such a testament to the strength and intelligence humankind is capable of, but also a testament to just how crazy our natural world is as well!
+Cody T. Thanks! Really glad that people are enjoying these videos.
I love your channel, i'm a different kind of engineer but love all this stuff and your elegant ability to explain the complicated. I particularly like the way you fuse your woodworking and engineering skills together to make models of these processes
Thanks!
There's a huge weir on the river where I live. Earlier in the year when there was massive flooding, a large barge got washed over it, filled with water and debris and spent about a month wedged across it. This was actually quite fortunate as it stopped other large things from crashing into the main road bridge in town.
Hehe, "large barge". Reminds me of "Tell em' Large Marge sent ya!"
I've been studying at Bath, UK. Yeah it is as stunning as it looks in the video :)
Hope you make more of these videos. So amazing
I have so many weirs and things round my area, cool to see the designs behind them all!
the marker next to the man hole cover reminds of a geological benchmark, for surveying purposes. Speaking of, that would be a cool video, all about surveying. you could include benchmarks, and monument boxes.
That damn was Barton dam in Ann Arbor! It also has a hydro electric side, and the reservoir behind it is where the city's drinking water comes from.
Hey Grady: for Norderney. The "tides" emtpy the region called "Wattenmeer" completely. Meaning you can walk from Islands to the shore.
+matze h Very cool. Thanks for sharing.
In Calgary, they replaced a Weir for taking some river water off into a canal, they made it into 2 sets of rapids, a Class 3 main channel and a Class 2 side channel, making it navigable. I have seen some large eye bolts in the top of some of the rocks... likely for emergency rescue work, if needed!
Awesome series! Keep going please!
I made it into the video! Yes! Thank you for continuing to make such amazing, educational videos :) I get excited every time I see one of these pop into my subscription feed. Can't wait to see what's next!
Very interesting video, thank you! I know Pulteney Bridge (in Bath, where the weir is) from my childhood, as we used to go shopping there. I remember there was a piano shop that was actually inside the bridge, and I loved looking out of its windows onto the water.
I would love a video about weirs. They seem like pretty awesome structures, and I'm sure there can be a lot of cool math involved in designing them to be more compact.
Great job with these videos! Infrastructure is something I always have found interesting and your videos are unique, high quality and informative.
Never stop making videos, your stuff is great!
I absolutely love this video series, and your channel!
my problem, however, is I study a different field, so when I watch your content, I learn new material.
as much as I would love to contribute media to the series with infrastructure in my area, I am not sure what to look for, besides the things I have started to notice after you mention them in these videos.
Either way, I look forward to more content and more knowledge! thanks to you and all who help you!
Neat to see that the Elm Grove project was on here, that bridge was out for most of the year.
I love your videos. It is so exciting learning about this. Thanks!
Thank you!
Thanks for doing this. I'm a civil engineer myself and love watching them. I like the intro too!
It's so cool watching this after watching more recent videos. "I would love to have a model and make a video about hydraulic jumps one day", yet that was the first video of yours I saw :)
I'm doing something that like 95% of people don't do.
I'm going back and watching the videos from the beginning of your channel because they are so good. Apparently scrolling is very difficult
That wave in Munich is behind a bridge where an underground passage of the Eisbach river exits into a park (Englischer Garten).
For several years you could only surf it in times of high water level but few years ago they built the wooden structure on the left to channel the water so it forms nearly all year.
Fun fact: Parks are owned by the state, not the city. The state prohibits this type of usage, so the city of Munich "bought" around 50m of the river at that point so the surfers could stay there ;)
That river in Munich is actually a artificial river called Eisbach (Ice brook) created to make the park it goes through look more impressive or to serve as a landscaping feature. It's a side arm off the river Isar, a natural river that runs through Munich.
It was created back in 1789 by a royal landscaper as part of the a system of little brooks through the park called English garden.
Thank you for bringing these stuff which we take for granted.
Great channel from one PE to another. About that picture of the ship entering the Aransas Pass jetty, I doubt he’s going to turn up the the intercostal waterway as it is only 9 to 10 feet deep. It’s only used by barges and pleasure craft, and few shrimpers.
Awesome videos! Keep it up! Personally I'm starting my freshman year next fall studying civil engineering and this series is very fascinating
I was really interested by that weir information. Plus I recognised the one in Bath from a British crime drama I saw years ago. I’m in Australia, but that weir featured so heavily in the TV show that I recognised it instantly.
Awesome video. Keep up working hard
Making a demo of a hydraulic jump is quite easy. Just hold a dinner plate face-up underneath your faucet. Near the impact point between the stream of water and the plate, there will be a small region of shallow water. That region will be surrounded by a hydraulic jump, which leads to deeper water.
Look how far you've come!
These were already great, but your modern content has only improved along with your presentation skills
One of the best channels on RUclips !
I love your video and it amazing how professionaly put together the feel, keep it up
Another great video! Thanks for all the hard work putting these together, it's seems like a fantastic community is growing out of the efforts!
Really digging the intro and theme music!!! Great video :)
I don't know why I'm here but I'm glad. Cool stuff I never thought about before!
3:39 Heyyy that's at Gallup Park on the Huron River! I used to walk there with my mom every day lol. Cool seeing a place you know on such a popular channel.
Yes, please make a demonstration / explanation of hydraulic jump.
I'm definitely looking forward to any possible video about hydraulic jumps.
The marker you mentioned serves an additional purpose. If a material which can cause interference to a navigable waterway were to be spilled into a drain which dumps directly into a navigable waterway then federal cleanup funds can be made available. In addition federal environmental protection laws come into play which can mean file or other punishments for the offenders. Otherwise the fines/punishments would be local to the municipality or state.
I love this channel. Keep the content coming!
Demonstrating an hydraulic jump is remarkably easy. Just open the faucet in to a kitchen sink. You'll notice that the water impacts the sink, speeds away from the vertical flow, travels along the surface of the sink, and then suddenly forms a circumferential boundary around the stream from the faucet. That boundary is the hydraulic jump. The more rapidly the water flows in to the sink, the wider the circumference of super-critical flow.
A more abstract way to think of an hydraulic jump is sort of like a sonic boom for incompressible fluids, except with a jump instead of a boom. Unlike a sonic boom, very little thermal or pressure energy is lost across the super to subcritical transition. Instead of Mach numbers to describe the phenomenon, we use Froude numbers.
The interesting thing about an hydraulic jump is that the velocity at the jump is precisely known. This feature of fluid dynamics has been used to build flow measurement devices for streams and sewer pipes. It is called a flume and these flumes have specific shapes designed to provide accurate flow measurements, without the elevation or head loss that a flow measurement weir would require.
so happy to see this channel becoming more active
Hey! I just wanted to tell you you are awesome, your videos are always interesting and educational. Keep up the good work!
Loved seeing the Port Aransas, Aransas Pass vid, you should do a follow up post Hurricane Harvey, my non-Engineer eye sees no change and 100% effectiveness of the Jetty, even after Mother Nature and all the floating man made items bashing into it (and there were many)
Pray for Aransas Pass, Port Aransas and Rockport Texas, We took a Severe Beating but we are coming back!
This channel will reach 1 million subscribers in no time!
Love your infrastructure videos!
love the information in the weir formula. I never knew that! Soooo cool!
Related to radar reflectors over rivers, overhead power cables stretching over rivers and straits have almost caused ships to run aground. Google "Chapter 13 radar navigation" and then text search for "Messina".
I love your videos, and your channel, man. Thank you.
well that was WEIR-d
Damn you beat me to it
Thanks for the vid, as a civil engineer my self I love these vids.
The wave in munich is basically like one of those engine-powered surfing attractions, but they use the natural water flow instead of a pump to provide the necessary flow over the concrete wave.
Edit: It's just a concrete hump placed into the channelized river, not really a dam itself.
cant wait for the next one!
Love your channel man! Thanks for sharing!
This is a great channel.
There's a nice weir in Minneapolis right above St Anthony Falls, I never really thought about what it was for.
Yes more of this please.!
They should make a fractal shaped Weir to maximize length, and more importantly make it look super cool.
Snowflake.
i love these videos
Weirs are my new favorite things.
Do more about learning these things in practice
Great video!! Structural engineer here
Currently laid in bed with Covid so decided to start at the very beginning.
It’s weird hearing you say that you want to do a video about x y z in the future….I’ve already watched them.
This must be what it’s like to time travel 😄
I love this stuff!
0:50 Marine Drive aka Queens Necklace Road, Mumbai, India one of the poshest of area of city.
omg this is so cool to watch
Please do the hydraulic jump idea! You would be awesome at that!
Yo, Grady, can you take on energy infrastructure? A lot of people don't seem to even know what a transformer is, let alone how high-voltage AC works and why we use such high voltages.
PS - For anyone who's curious, Power = Current * Voltage
High voltage = Lower current with the same power transferred nonetheless. Lower transport losses to heat due to smaller current.
I really enjoy these videos! :D
I know I'm late....but I would love to see you do a video of the intercostal waterway and it's history.
You should definitely check out "deltawerken" in Holland. It's one of the most ingenious hydraulic systems in the world...
Great video!!
Thanks for another awesome upload! We need some more water in California!
Love to see the Munich standing wave
The main reason why many streams and rivers were diverted underground was not lack of space for buildings, but because they had a tendency to spontaneously convert into disgusting open sewers. The problem and practice of diverting streams and rivers underground still persists in many parts of the world. Bringing them back to daylight is only done in countries where people have learned to not throw garbage to nearest waterway the first chance they get.
I have a more serious question regarding dams, and how the principles governing their creation can be applied at a smaller scale to individual homes during flood seasons. I am a strong survivor of hurricane Harvey and would like to know how to safeguard my parent's house against flooding in the future! The application in question is non-permanent deploy-able water dams that would protect the perimeter of one's house against flooding waters of up to 1 meter high (YES! 1 friggin meter!)
I love your logo
I would love a hydraulic jump video.
I think this series is asewome. But here's some feedback: instead of cramming as many as the viewers "letters" into the video, I would like to see just a little more depth in the analysis. The genious behind the structures is the gold nugget, and sometimes it seems a little rushed. So: more of the behind the scenes on the same pedagogic level as now, less examples. Do what you want with this feedback good sir!
Pure gold!
Really cool!
Tetrapods are used especially in the marina(yacht port) of hertzeliya, israel
Thank you so much for this! These videos are amazing :D
The picture at 4:21- is that Dobbs weir in England? That's round the corner from where I work :)
How about a standing wave video for producing the best wake surfing wave?
New legislation coming into Wales (UK), all about Sustainable Drainage Solutions. This is to try and mimic the natural hydrology of an area and to keep storm-water at source rather than transferring it into a sewer system. I think this is happening in the USA (and China, google sponge city) as well. Should change the look of modern cities!
always cool videos ..