as a self-taught scientist, I find through this experience that it is safer to live in a house with a gray roof. Thank you for your attention. edit: thanks for the likes. Thanks to your support, I am thinking of opening a science popularization channel.
@@QuantumTB yeah but the grey roofed house got the warning and thus extra time to ignore the signs of the inferior other color roofed houses early demise.
I saw this house once that was literally built on sand. I was called out to help figure out their drain issues, and their sewer line had sunk and filled up with sand. I saw another house that was built in basically a giant puddle. Any amount of rain and the entire yard floods. His bedroom is falling off the side of his house like a wet graham cracker...
@@kyle18934 It's knowledge as old as time not to build on sand. Even the Bible cautioned against it. But even today I still hear people complaining about their house collapsing under their feet or their walls being dragged away after a storm, then still chose to rebuild ON THE SAME PLACE. 🤯
Have you ever tried building one without sand? Like maybe using dirt in one instance? I think that could be interesting to see how the different bases hold up
Or maybe it’s time for them to use GODDAMN CONCRETE! Who is in charge of PUTTING HOUSES ON TOP OF A SAND DAM! IF YOU WANT THAT USE CONCRETE INSTEAD. It’s better for holding up.
If you put just a small amount of dish soap in your water you will break the surface tension and you should get a lot less pieces of sand floating on top of the water.
Ye that's a good point but i am not sure that's the primary source of inaccuracy of the model. Flood water does get dirty though the edges with surface tension wouldn't scale the same. I think I am more concerned with the fact that the model depicts trees and plants as a load on the soil because there are no roots. Vegetation has the opposite effect, where it helps retain soil during a flood though of course at a certain point I guess it's all going wrong if you build a house on sand where it can flood. I like how you can see the lens of water under ground though.
@@tedgerahedron I was just make a comment about the fact water clarity could be improved to better increase visuals. Maybe some people have learned something about surface tension of water in the process.
Essentially, you are recreating what happened to the town of Port Royal, Jamaica in the Golden Age of Piracy. Built entirely on a sandbar, one earthquake liquefacts the sandbar, the whole town gets swallowed by the sand, along with a lot of the people in it, and half the town just slides the hell into the ocean while the rest gets slammed with a tsunami.
@J OH that makes it more frightening to me. Imagine, walking along on solid sand, and suddenly there's a shaking, you can't keep your feet, and then suddenly you fall through the sand and everything's black and you can't breathe and then the shaking stops and you can't move in the black and can't breathe and die not even knowing what happened.
I remember doing a similar build when demonstrating to some students in the science department the importance of understanding WHERE you're building and the surrounding water/climate processes that could lead to ground inundation and severe flooding. We used toothpicks to be the "trees" to try and hold the sand together better. Essentially they were designing cities, and we were trying to come up with ways to deal with flooding. Vegetation/trees and so on are some of the best because of root systems holding on to dirt but they aren't a sure-fire thing. We also added rocks into our mix. Overall it was a good visual representation of the destruction water can do.
The speed with which things went down hill alarmingly fast, was the moment the water broke to the other side. The rate that liquefaction of the sand took place at was a tremendous force and one that happens here on earth. What a fantastic little model. Some aggregate stone and other loose binding materials to more accurately replicate earth environments maybe interesting as you move along from the coastland further in-land. Just a thought. Good stuff !
@@dontbelazy007 no one builds a dam out of sand either for the exact same reasons. I don't understand what this video is supposed to even be demonstrating...this is why we wouldn't ever do this in the first place?
@@dontbelazy007 except every beach front condo in the world in Southern Florida, or maybe entire countries as examples Iraq, Iran, UAE, Jordan, Sudan................
This was cool and clever version of your thing. May I suggest something? Build the houses from the bricks so there could be more eventful and "realistic" collapses. I personally would like to see how different (brick) foundations would affect their flood resistance. Also the roof could consist of smaller pieces so it wouldn't be so big chunk at once. What do you think?
I've seen a lot of roofs float away as more or less whole pieces in flood videos before. Not sure why, but I did a bunch of roofing back in the day. Best guess, the various interlocking pieces (beams under plywood, plywood covered by shingles) gives more area stress can be distributed across without breaking the roof a whole up. Like a piece of wet wood bending instead of breaking all at once.
I live on a 136 acre lake that was once a quarry. To keep stuff like this from happening, we use a coconut husk mesh along the shore, then build a wall of large stones on top of it. We try to keep everything as natural as possible.
Sped up erosion with a whirlpool he created the sand is abrasive and is eating away at it way faster than it would no hate just have the water come in by the middle not where it created a whirlpool Bc without that it would take longer
This is one of my favorite so far cause we got to see it go over the top as the structure of the dam was strong enough not to just slough off because of the water. I would like to see more variations of this dam.
Only its 100% inaccurate. Wheres the varying layers of soil, dirt and hard pack? Wheres the compressed rock bed, or clay pit? Not all ground is lightly tamped sand lol, the earth does have varying layers of compressed dirt, soil, clay and rocks. This is about as accurate as flying a kite with a GI Joe on it to test and see if people can breath at high altitudes lol
I'm reluctant to show this to my husband, he and his family lived through the flood of 1972 in Rapid City, South Dakota. He was just a boy, they were floating on his parents bed, all that was visible was the roof. When the flood receided there were 17 bodies just around their house. The dam broke on Rapid Creek due to heavy rain fall in a short time.
@@KingOfDams also these videos are pretty cool…… it would be cool to see the water rising from an underwater cave kind of thing so that the structure of the sand will start to cave in instead of creating a landslide. These videos are so fun to watch… Keep up the good work 👍
this makes me wonder what the highest water level you could have without a breach. since you got pretty high up before the final critical failure occurred
Two things I said to myself during this video: 1: I was certain the red car was gonna slide in before the topping over occured and end up on the other side entirely! 2. My man in the good house's top floor bedroom will wake up tomorrow without a neighbor OR a neighborHOOD as a matter of fact ! That's wild ^^
Such a worthy recommendation on youtube! (Finally one jsjs) this kind of exact science its totally the future of the entertaiment~ and what a very good song btw!
I don't know why I'm getting such a kick out of these videos but I am. It's really fun to watch the water come up and to slowly destroy stuff. Please keep making these videos
I recommend putting a scale or axes (x,y) glued to the glass to get an idea of the dimensions, and if possible the type of sand you use. I am referring to its origin (sea beach, river, quarry, etc) and if you have access to a 10X magnifying glass you can take a picture of the grains that make it up to appreciate its shape. good video and thank you for the time you invest in each one.
This dam looks very dry! Like no rain in two months. In the Netherlands they spray the dams with big boats to prevent 'floating' of the dam and keep the dam heavy. Would the dam in the video be more strong when you spray it with a little bit of water? (On scale, for example with a plant sprayer)
This commentary brought to you by National Geographic In the quick aftermath of the Lego City Dam failure on February 12th, 2003, two residential structures were damaged by the flood. At the time the two homes were built in an ideal setting, however the subsequent failure of the dam up stream proved a sudden increase of water flow into a reservoir would massively change the expected shoreline. Currently ordinances require that no structures be built near the shores upstream of a dam, and levees must be constructed along the shore line to decrease water damage and erosion to structures and their foundations.
This is pretty much what happened in Johnstown Pa in 1889. A bunch of rich people built a dam for their country club and it failed horribly taking the city with it
pretty interesting how when you used the bricks they broke when the water rea hed about their hight but when it's a thicker wall of sand/just sand it keeps water back better
Is it possible to rerun this experiment with Simulated "Deep Root" infrastructure? Like either Deep root plants on the hillside/around the houses or Pile driven poles sunk deep into the earth to add further stability? To show possible safety measures that can be taken to prevent this kind of scenario?
@@tedgerahedron simulating would be faster and probably cheaper. To get a proper simulation, you would have to let the roots really spread out, and the fake stuff wouldnt be at risk of dying after the experiement. But yes, its something they could do
@@dkakito well yea and at that point with such an inconsistent variable it would almost be easier to go to a shoreline before tide with pre-existing vegetation and then just match the scale to the tide variation you get during the experiment because at that point we are basically taking an external variable with data and building an experiment around it So that's a great sign....
I'd like to contact the engineer and architect who made the taller house. It's safe, it lasted 10 minutes even everything surrounding it is falling apart, especially that cold-hearted yellow guy doing nothing to save other lives.
Looked realistic throughout except when it comes to the big dip on the other side of the warer breach, which is implicitly what caused the most damage.
My first thought was I see a massive lawsuit against developers and county engineers for building and allowing construction on that kind of ‘ soil ‘ I also see one or two people being thrown under the bus to protect the true guilty parties , and I do include the builders/maintainers of the dam in that as well.
@@danielfantino1714 yep , but developers and governments all have the attitude that it’s easier to defend against a lawsuit than do it right the first time.
I actually really enjoyed this video. I don't know why it was in my recommended, but I do think it would be fun to see some facts about how quickly this would all happen in real life.
Would you class this as a dam failure? I wouldn’t! It held water until 101% capacity, most dams would fail well before that, sure structural integrity failed in forward parts of the dam, but all in all, what killed the dam was the overflow, something IRL dams have safety measures to prevent such as spillways etc
The simulation doesn't 100 % true. Sand can't represent the soil, because the compound materials are different. Soil more stronger and solid than sand if there are some plants, grass, and trees on it. The roots automatically hold the land from abrasion.
I have no idea what I just watched or why i stayed the whole time... but watching this to the end was an interesting experience. I kept betting on which red car would sink first.
Police officer banging on the door: "Hello? Hello?! Have you seen this man before? He's wanted for mass murder and mass destruction on small human town property and he's still on the loose." 🤣🤣🤣
Pretty cool and fairly accurate. The only thing I see is the pawning of the water on the back side of the dam really slows down the speed of the water going over the dam like it wouldn in real life
