Hi! I wanted to say since not many other people have commented on this that I really like your videos and thank you for being my attention to this channel!!
Now, every time I'm in my car waiting for someone or driving down the streets, I can think of nothing but a huge void underneath the asphalt that can open up and swallow me at any moment. Thank you!
It should make you feel better that you’ll probably not die from it, your car probably has lots of safety features that’ll prevent death in this case, including your airbags. I’d only be concerned if you live in a place where your roads are traveled very very rarely, and even then usually someone’ll notice a sinkhole before you’d run out of water down there
holy crap it's Physics Girl!! I didn't know you comment on youtube just like any other commoner. Mind... blown... Haven't seen you videos in a while, I get stuck watching pbs space time and smartereverday whenever I'm not watching computerphile or someother tech stuff . Don't worry though you haven't lost a viewer or anything.
When your teacher put this video in your classroom: OK, this is gonna be boring..... When you discovered this video by yourself: This look fun. I should watch.
I bet you are also grateful to Blue Apron Farm fresh foods. Especially if you have just moved home and not even thinking about shopping for groceries...
i was watching Xenoverse 2 modding video's but saw this and came here... who knew sink holes was part of gamming.. ooo wait they are.. the money sink!! but my joke aside i found the video very good so thanks for taking the time to make it.
You do the sponsored videos the best. "This is this video's sponsor. More on that later." I like not having to watch a 1 minute commercial at the beginning of the video.
Gear Down For What? maybe I should've posted a video 5 years back, but my explanation wouldn't have been so detailed. Probably took a while to figure out the details.
Thank you for the explanation. We were hiking the other day in a place that has limestone sinkholes and it fascinated my 9 year old son, so we set out to find out why they happen. He enjoyed your explanation and we both learned quite a bit!
Hey Grady, I work as a crane operator for foundation contractor. We build foundation and set structures for transmission power lines. I'd love to see you do a video on vertical drill shafts and the science behind keeping them open. You make amazing videos man, keep up the great work
I was searching for videos on "how to pout like a Kartrashian," and "affordable butt implants," but now I know practical stuff about compaction, bridges, thermal expansion and internal erosion. Ahem. I was lying about the Karcrashian stuff. Just trying to be funny. And probably failing.
My question is what sort of things do engineers do to 'avoid' internal erosion? Sinkholes can happen in modern cities that have high building standards. Is it difficult to stop internal erosion from happening? What are the ways to minimise it? Thanks and great video.
just some of my thoughts so take them with a grain of salt 1. take probes of the soil and excavate and change it if necesarry(very expensive so most likely not often used, if ever) 2. controll the waterflow in the soil better, maybe with some blockades or a waterproof layer, so it cant reach deeper then the engineers want to
@@Arjunkumar-dw8rw Trees are pretty and good for holding in soil, but I've seen their roots do some gnarly shit to water pipes that they happen to grow into. So either you're spending those days to deal with a sinkhole or you're spending days digging out a tree root that's grown into and blocking a water main.
Yay! Someone else remembers Goober! I'm more partial to a Fluffernutter sandwich with Banana slices, but that gets hard to choke down without something to drink, so I don't attempt to compare it to jellied sandwiches.
Hi I am a civil engineer, from TJ Mexico, good videos you explain things simple, just like often do to order people but Whit out the models.. Keep up the good work..👷
As a plumber I've seen this happen, we once started digging a hole for a burst water main and the surface collapsed below our feet! Luckily it was only about a foot drop 😂
I keep pointing out to your video when the latest victim of my neighboring country has similar case. It claim 1 victim that we do not know her fate yet.
Excellent video! I like all the demo setups you build. This is so much clearer and intuitively understandable than a diagram in a textbook (and I've seen a lot of those). I knew how sinkoles form, but I watched just to see you explain it the way you do. Thanks for making all these videos!
@@vailabegaming8142 unbreakable blocks = barriers , command block (unless in creative ), end portal block , bedrock and a /fill repeat command block ( in short it's making a block next to it over and over if u break it it just comes back
The drainage erosion holes under an asphalt road can be so big that they get measured in DDBs (Double Decker Buses). I came across a 0.5 DDB hole in Scotland a few years ago and rang the highways department engineer to report it. I gave location and suggested that they quickly measure the volume, then order concrete and fill it up before the road collapses. Next time I passed, what had been a huge hole was just concrete.
You should check out the town I live in. It's Palmyra, in Pennsylvania. It's the sinkhole capital in the nation. It's horrible, just about every road/house ends up having a singhole. Hell I have 4 huge ones behind my house. We just build a new firehouse for 1.2 million dollars, and right when we where about to have a grand opening, a huge 15 foot by 15 foot sing hole opened up right in the driveway. LOL.
This Old Ton the zee is that you have have have have have have have have have have have have have have have have have have have have have have have have have have have have have have have have have have have have have have have have have have have have have have have have have have have have have have have have have have have a look at
Hello from Darwin Australia, I fell into a sinkhole at work a few years ago. A very scary experience l would never want to repeat. Thanks for the video
Engineer, this is the first video of yours that I watch. It had just appeared on my recommend list. Pretty good stuff, gotta say =). Could you do an analysis on "O desastre de Mariana" or "Mariana's Disaster". It is a Brazilian catastrophe that happened because of a mineral dam that broke up and flooded many cities. Thanks a lot, keep up with the great job!!
Pedro Bomfim what a coincidence. It is the first video I watch from this channel also. Unfortunetely it is also the last cause I am not planning on subscribing. maybe I should to be less of an ignorant... 😧😧😞
Sink holes are my biggest irrational fear. Seriously afraid I will fall asleep and wake up at the bottom of one or not wake up at all because the ground swallowed me.
Same. That fear worsened for me when a sinkhole opened up only one block away from my house and it destroyed an intersection in the road and it took 2 weeks to fix it.
Nick Lemke I'd like to say you are crazy but my niece had one open up in her front yard while playing and she almost died or would of been seriously hurt but managed to catch herself lol they did a news story on it so I guess it's not really that irrational lol
Just randomly came across this video. It was very informative. I learned something new and the visual demonstration helped me understand it better. Keep up the good work.
Thank you for posting. I was a Forensic Geophysicist for 40 years. Sinkholes were my primary investigations. I never called a washout from piping a sinkhole though- We called the self inflicted washout for the press and local agencies as to not relate them to a natural due to fear factor. Educating the public is the hardest part of engineering LOL
If I have a known sinkhole with a diameter of 20 meters and depth of one meter and is in a known mostly karst area and it holds rain water for over 4 dry weeks after the last rain, could that sinkhole sink anymore?
@@MrTwinkieeater Sounds like it may be a cover collapse type sinkhole and may have sealed itself when it collapsed. When to roof of a void or cavern collapses, it can naturally drop the soils from above and like a funnel effect seals itself with the surface soils and materials. You can place stakes on 4 sides at the top and run string tight across to each stake and take periodic measurements in the middle to see if it still shows signs of subsidence. Sounds like you don't have much to worry about since it holds water for long periods of time.
@@adillpickle6762 thank you so much for your information and quick response. I really appreciate you sharing your expertise. That does give me some piece of mind.
Grady, love your videos. Excellent explanations, scale models, photos, demonstrations, etc. Thanks for making these interesting and educational videos.
Water is extremely dangerous if you are a crispy lifeform. Put a biscuit in gasoline - it stays crispy, put it in water - it softens and then dissolves.
A sinkhole swallowed up a house in the neighborhood where my mother-in-law lives. The family was ordered to leave and not allowed back in to get any personal possessions, everything they owned went down, and all that is left is a large overgrown depression in the ground. Sinkholes are particularly bad in Florida where we sit on mostly limestone.
Please, do the piping video. You mentioned Teton Dam, but may I sujest you take a look too at the Mariana's Dam disaster aka Bento Rodrigues dam disaster that happened in Brazil in late 2015. I think it wasn't just a bad planned upgrade to the dam or negligency, but a continuous erosion that was neglected and a last minute fix that could have made everything worse. Anyways, do make a video about piping.
When I was a kid the water pipe coming into our house sprung a leak. They sent someone out to look at it and determined it was on their side of the valve, and decided since it was late Friday and the flow wasn't too bad that they would save some overtime by fixing it Monday. My brother and I played in the water and sand all weekend and had a grand old time! (My back got sunburnt!) Anyway, Monday rolled around and they showed up with a backhoe, which promptly had one of its tires break through and collapse part of the road. By the time they got it out the hole was probably 6 feet across, right in the middle of the road. I suspect they failed on the cost benefit analysis portion overall. I make a point, anytime I see water coming out of somewhere it shouldn't, to make sure whoever is in charge knows about it. The people usually are pretty dismissive, so I tell them that story to give them an idea of what can happen if they don't deal with it quickly.
Feng shui says any leaky pipe will manifest a drain on the responsible person's finances so they recommend fixing leaks ASAP with urgency. The OP story is a piece of evidence why.
+Mingwei Zhang, yeah. I wonder how much of that philosophy is a response to their culture and climate and how much is independent of culture in its' effect.
I really enjoy your videos! I took a few semesters of physics in college and I really think just that little bit of understanding of the way I interact with the world makes everything more interesting. I think you have a great way of breaking things down to a level most people can understand but it's fun to learn.
That was a neat simplistic way to view the process of sinkhole formation. I have my own thoughts on other things that cause them to form. Like downed foliage that ends up sub surface, or large root systems that are not excavated from the ground, after trees are felled, and are in areas that stay relatively moist and in turn decay leaving voids in the ground. My thinking is that gives a good jump start on the whole thing.
2:42 Karst Topography. Ground water can also support the roofs of underground caverns. Citrus farms (Florida) will pump large volumes of groundwater from their wells to reduce the risk of frost damage to crops on extra cold nights. This can trigger many sinkholes to open up to the surface.
a 500mm high-pressure waterpipe bursted the other day near my house, causing the road to expand up until they shut off the water on the pipe, which caused it to collapse into a sinkhole. pretty interesting to see
This happened in my hometown Ipswich, Australia, in the middle of a busy road. Bad enough the town is already called a sinkhole because surrounding terrain.
i have always be aware of the underground hydrology, (7th grade science taught by a geologist) and started to learn how to surface as well as the sub surface is in constant motion. the water aspect, from tectonics to erosion is a curious thing. i appreciate you showing these videos, i have seen others but did not comment on them at the time. these are well done and clear and easy to understand. thank you for this presentation
I wish the engineers who built the condos in Fla watched your video. I'm assuming it's a sink hole but hasn't been confirmed yet. Can you do a video reflecting what could happen if a building is built too close to the ocean?
Ground penetrating sonar will let you know if there is a void below the surface, what size it is, and how far down, regular inspections will let you know if there are new voids, or if a known void is getting bigger.
The politician who invests money in disaster prevention is not likely to see the results of that investment. People will only see "higher taxes" and be angry at the politician.
Simon Rydell Its something they SHOULD do...Because the US Gov't has a budget of $582.7 Billion for the 2017 fiscal year... which is something like 54% of its budget. (Thats just a quick google search number, Im not 100% but you get the picture of how much is going to JUST the military) I think the total US budget for 2017 is something around $3.43 Trillion... Again, these may not be exact figures. Maybe if the were to construct walls straight down every few hundred meters (Sorry, Yards lol) so as to prevent the ground from being able to move from one place to another. Im not an engineer, but it was just a thought.
And sadly, NASA only recieves just under $20 billion. Thats just a fraction of what the Military recieves. So whats obvious here is, That we need less war, and more involvment into planetary space programs ("Hut-Hum", going to mars within my lifetime would be nice). I wasnt born yet for the moon landings, and I wish I was b/c that would of been a spectacular event to witness. I was just born a year BEFORE Halley's comet passed by in '86. So I wasnt old enough to appreciate its passing, Only saw it after the fact like everything else in space I missed. And lastly, even though I planned on seeing the Blood Moons we had a couple years ago (Or less, I cant remember exactly when they occured) But I missed them all and was quite upset about it... I need a telescope, I miss EVERYTHING Lol
Great video! My first grader and I really enjoyed watching it. My son said this was the best sink hole video/explanation that he has ever seen. 😃👍 Thank you so much for sharing it.
