Archimedes Screw: Because Hauling Water is Awful
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- เผยแพร่เมื่อ 26 มิ.ย. 2019
- In which JB talks about the technological challenge of lifting water without engines to do the work by gesturing at a windmill.
Filmed at the Open Lucht Museum near Arnhem in the Netherlands.
Nowadays, lifting water is about the best we can do for storing energy. The energy we put into lifting it, we can recover by letting it fall through a turbine, with only about 15% loss in a modern plant. Lifting it is *hard*, but we can make it do hard work for is later!
Which is so cool! JB
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@@GoodandBasic Totally not declining EROEI!
Consider as well the lengths the Romans went to with the aqueducts just to preserve the elevation of water so that it would not need to be lifted.
Yes, indeed! The New York City water system is another example; it has some of the longest tunnels in the world, just to preserve a uniform descent from its reservoirs high in the Catskill Mountains down to the pipes of New York City. Lifting water is *hard*, and virtually the entire system is gravity fed. The water quality has historically been quite good indeed, because it is literally drawn from mountain streams.
Well, with the power of lifted* water Romans could literally wreck mountains...
*read: transported by aqueducts
The Romans did lift via siphons, an even more incredible feat than the screw in my opinion. In deep valleys they would use siphons to make the water flow down and then back up hill following the terrain. Imagine how our world would be if all of our ancestors didn't destroy knowledge Everytime they conquered a civilization.....
@@joshuahafel4506there is nothing new under the sun
@@joshuahafel4506 War is part of the problem, but deliberate attacks against knowledge even more so. Like the Library of Alexandria wasn't burned down during Cesar's battles in Egypt (merely damaged); it was destroyed deliberatively and over time by Muslims and Christians.
Anti-enlightenment movements are the bane of our existence.. almost as much as war is.
I always love how mind blowing everyday things that we take for granted can be, when you actually take a step back to consider it fully and compare it with how things were for people thousand of years ago.
Great video Would prefer if you continued the making metal from scratch series though! ;p
Fear not, that project is alive and well. We got a new batch of high grade ore just last weekend. JB
Good and Basic bog ore?
Nope. High grade magnetite from mine tailings. JB
Love content like this..Much respect to the brilliant & ingenuity of past people before us 👏👏
Look up the Ram pump.
Uses 2 one way valves and a head of water... can run 24/7 365 days of the year.
"A hydraulic ram, or hydram, is a cyclic water pump powered by hydropower. It takes in water at one "hydraulic head" and flow rate, and outputs water at a higher hydraulic head and lower flow rate. "
And a DC to DC converter does exactly the same thing in electronics land. They even work a similar way. A ram pump uses "water hammer" to generate a higher pressure.
You forgot to tell that that thing throws about 60 cubic meters in a minute. So that is quite an improvement.
A plan to show they built one back in the day would be a good thing.
Where is that?
Could a waterwheel transfer the force via gears to a screw like this next to the waterwheel? Cause waterflow from the river is constant, while the wind is not.
Perhaps the tolerances were just not tight enough to make this plausible back in the day.
Those setups exist.
The water lifting windmills are just so well known because of the Netherlands who use(d) them to keep their feet dry. As they needed to lift water from canals that had no flow but had wind, they used wind to lift water.
@@MazeFrame Ah guess it makes sense to use what's best available, since that whole region is a flat as you can get and not be in salt flats :)
this is awesome
My cousin Wilbur can build this now with modern tools if only I can get him to finish our take-down bows. 😊😊😊
wait, what's the reason for the 6-foot elevation gain limit? is it just a limit of the old manufacturing techniques, or is there something more fundamental to it?
That's the size they built that specific pipe, therefore it is limited to 6ft. That's all
Yes.
You have a fixed amount of power (from the size of your windmill and the strength of your average winds).
Thus, you are limited - if you go for a longer screw for more elevation, you have to reduce the capacity or the mill won't be able to turn it.
By keeping the rise to the minimum, you can maximize the diameter of the screw (and thus the quantity of water lifted per rotation).
So, for every foot of elevation gain you are getting less water per hour out of the same facility's energy use.
If by a running stream would a pellatin wheel connected to the crank be enough energy?
As long as the pelton wheel is turned by more volume/heavier weight than the volume/wieght that the screw is displacing&(minus any friction points)it should work🤷🏼♂️
Is 6 feet the max for this device ?
If you have a long enough screw, you can lift water much more than just 6 foot. You are only limited by the length of your screw.
Plus drag and materials limitations of course. JB
"Give me a screw long enough and the right materials to make it and I can move an ocean" (Archimedes, probably). JF
How much skill does it take to make a barrel? Your comparison between skill set has me stumped.
👏🏽what country is this in?
Netherlands. JB
I bet they are using a screw because it will still function properly at very high load and maybe act as a brake, bucket chains and wheels would be destroyed in a harty gust. no screw on the marble machine x though
Are you going to build a small scale Archimedes screw?
I'd like to. I might 3d print one for demonstration purposes. JB
@@GoodandBasic did you make one..? Cuz I only saw windmills are awesome and the metal thing videos as a sort of a follow up for this..
@@GoodandBasic An easier way is to wrap a flexible tube around a cylinder. Then arrange the cylinder like he revolving screw here.
then recommend a book on elements
ah, archimedes gets 10 billion points for this one.
Dr Stone reference?
@@MioAkiyama3686 yup!
He was like the Jews. Stole it from Egypt.
@@szolanek Why would they even need to steal technology when they can just siphon money without lifting a finger?
That intro sounded kinda like the beginning of vicinity of obscenity.
"God may have created the earth but The Dutch did Holland"
simple.wikipedia.org/wiki/Netherlands#Geography
Who would archimedes screw?
What wood achimedes screw.
Archimedes nuts?
I was expecting you to have a very British accent
Dance
Game
All this when a ram pump doesnt use electricity too
But you need to have moving water for a ram pump to work. You can't raise water from a lake with it.
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