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Alan hat
Two Bit da Vinci
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Comments by "Alan hat" (@alanhat5252) on "Two Bit da Vinci" channel.

@lephtovermeet lubrication is not needed, take apart your fishpond pump to see, the rotor/impeller assembly is sealed & often on magnetic bearings, nothing else has bearings.
15
@ytSuns26 metals aren't the only option, materials commonly used for boats will work just fine for underwater turbines, concrete, fibreglass & wood last really well underwater
12
@mementomori29231 just out of curiosity, which king or queen owned you in the past?
8
energy storage is already figured out, it's just waiting for people & companies to buy it. I have enough lead-acid batteries for about a day, if I could afford it I would have a month of NiFe batteries, grid-scale seems happy with NiFePO, liquid-metal & Li-ion batteries alongside pumped-storage hydro, pressurized air in caves & molten salt but more tech is coming fast...
6
Even if it's your home where literally hundreds of generations of your family have grown up surrounded by your olive trees, your livelihood?
6
@lephtovermeet the consumer ultimately pays full price for energy, either directly to the supplier or through taxes which is where the money for subsidies comes from. Ok, imbalanced taxes sometimes mean that some people pay more for energy than others but the principle holds.
5
@carlitoxb110 1) not all economies are built on consumption 2) elder people & robots consume services
5
thorium isn't a cooling salt, it's a fissile material. Its biggest real-world advantage is that you can't make bombs from it.
5
and when it comes round to your home, where your family has lived for 5,000 years & more? Do you just walk away when a foreigner wanders up & says "goodbye, it's my house now"?
4
yes but the sun is weak towards the poles because it's travelling through lots more atmosphere. That's how the poles remain frozen
4
@gordonmurray3153 the transmission losses on HVDC are orders of magnitude less than AC at any Voltage, long transmission lines are completely feasible & already in use.
4
That's called "fractional distillation", it's already used but not for separating the components of air because there's more efficient ways of doing it. CO₂ by the way doesn't become liquid if you just chill it, it goes straight to solid. It becomes liquid if you compress it instead. (Nature has some odd stuff).
4
Also, turning away from the current camera feels disrespectful, turning towards the new camera works better. Watch the news anchors you're copying (it doesn't help anything there either & they often do it to lower the perceived importance of what they're saying).
3
@hg2. no, environmentalists have NOT affected the price of gas. The price of gas is set by Stock Markets & the retailers that sell it to you & your government. Don't you remember the price went negative a couple of years ago? (It was news headlines all over the world) Would environmentalists have allowed that if they had any effect on the prices?
3
@TheRealCheckmate Salter's ducks?
3
it's already happened & is expanding rapidly.
3
Frankie Goes to Hollywood - Two Tribes. The song was talking about USA & Russia but the video fits well enough here too.
3
@autohmae market share changes continuously, that's just a feature of capitalism, as long as Tesla can maintain enough share to keep their chargers maintained it really doesn't matter to you & me.
3
@jghifiversveiws8729 that's what India is doing, Modi was talking about it at last year's COP
3
@gerryflores88 some of the inert rubbers (I'm thinking silicone) are pretty resistant to water abrasion, as are some ceramics, solutions can be found
3
That's interesting, thank you. Is there a 10 to 20 minute video describing this in more detail? It looks from Wikipedia as if Trump stopped the plans in China but China still has a sodium-based nuclear programme, can you clear up what's happening?
3
Like a Ridgeblade or Windcrest? Yes you can.
2
7:17 so, wind is maybe twice as safe as nuclear & hydro-power or solar maybe 4 times as safe? So, nuclear is the way to go? Hmm... I think recovery time from disaster may be a useful statistic, as well as cost. If a solar panel has a catastrophic failure it will take someone with a dustpan & brush half an hour to clean up the mess & an engineer maybe half a day to replace it. Windmills take longer, maybe weeks. A catastrophe with hydro-power can be a big thing depending what type, a tidal lagoon has minimal impact but a large dam can take a decade to recover. Nuclear? How long has Chernobyl been sitting there? What did the Russian army do to it last month? Has Calder Hall or Windscale been cleaned up & the site repurposed yet?
2
@muresandani "the last" indeed, the scattered radioactive waste will still be polluting the environment centuries after the dead people are forgotten -- go look at Iraq & the "spent uranium" munitions littered all over the countryside...
2
it doesn't get discussed much because it upsets the lunatics ("it's our sun, we can't give it away") but it's happening anyway & has been for years, most neighbouring countries interconnect their grids & it's not a great leap to use those same interconnections to traverse multiple countries. The EU has done it & is expanding across neighbouring countries quite rapidly.
2
@sandyfordd1843 Nickel-Iron (NiFe) batteries were invented for car traction batteries too but skulduggery from lead-acid makers saw the superior tech sidelined.
2
& Israel created Hamas because without a bogeyman Israel would fight itself to the death.
2
ammonia is used in some equipment
2
Gusty turbulent winds mean a HAWT is always facing the wrong direction to catch a gust & in extremes will snap the tail off (yes I have seen it). It's really frustrating having to hold your hat on while watching your windmill gyrating wildly yet not generating power.
2
@nathanbanks2354 ten times at least
2
@lifeistooshort649 not even neighbours, the British shipped the invaders in from Europe.
2
wrong
2
CO₂ works at 1000psi apparently
2
I'm not seeing any detail that isn't Victorian-era tech so all the numbers you're after are out there somewhere. Much has been improved in the intervening century (turbines especially) so look for recent data.
2
@gordonmurray3153 with HVDC you are citing problems which have already been overcome & HVDC is installed in & between many countries right now with more following rapidly. For example UK currently has 8 interconnectors to the Continent & to Ireland as well as nationwide distribution all running HVDC. I understand this has been enabled by semiconductor electronics doing away with mechanical switchgear.
2
That's the market I'm waiting for, there's got to be millions of campervans around. The bearings need to be top quality & easily changed though, there's nothing worse than a noisy bearing resonating through the frame of your 'van.
2
@rolandrohde yep, how do you get "keep left" signs to stay where you put them? 30,000 foot high poles don't seem particularly practical.
2
@asandax6 metals can be discounted entirely, there are plenty of other suitable materials. Hardwoods for instance seem to last well underwater.
2
have you seen what happens inside a toaster?
2
Not often enough to worry about if the country's economy is stable (so yes, it's an issue in the UK at the moment).
2
8:09 Hinckley Point C -- declared to be the single most expensive project on Earth ever, beating even the Egyptian Pyramids
2
how do you charge it?
2
5:19 Palestine was demilitarized soon after the British takeover in 1920 but it wasn't enforced against the Zionists Britain was shipping in. This situation still hasn't changed, a disarmed country trying to hold off an armed invasion which has the support of great empires.
2
@factnotfiction5915 "60-100 year lifetime" of a nuclear power plant includes building & cleanup, actual on-grid generation time is less than 30 years
2
@TwoBitDaVinci are you using different title screens in different markets? The one I got was definite clickbait unsupported by the video. This behavior is why I have been watching less of your videos recently.
2
@aware2action your point is explained in the video.
1
We are already well connected into Europe's DC transmission system with, I think, 4 more connections coming online this year but the Government are working hard to get us cut off, connections to France & Norway went one-way last October because of our Government's bad attitude.
1
@briankeithwood it certainly is
1
Every boat in the harbour has a small wind turbine to stop the batteries dying over winter.
1
on a stormy day in winter? I doubt it
1
@Slayer8957 thank you for repeating oil industry propaganda. Actually, no, F*CK OFF WITH YOUR OIL INDUSTRY PROPAGANDA
1
pressurizing the system is one obvious possibility, there will be others.
1
Sell your MPP tracker then, there's a gap in the market.
1
:-D
1
Whatever for? It uses about the same power as a motorcycle engine! Get a grip! Any excuse to mention the latest buzzword!
1
@Dustin Etts, did you watch the video? All of it?
1
it occurs to me a retro-reflective coating like traffic cones & road signs might survive long enough to destroy the optics of the laser weapon.
1
in a wind funnel it's probably better to use the more efficient HAWT types, these score in turbulent conditions.
1
Um, solar wind? Arthur C Clarke's short story "The wind from the sun" gives quite a good visualization of what happens to something very large & lightweight if you block sunlight with it.
1
That's interesting, can you provide links, please?
1
it would probably work but it's at the wrong end of the price curve at the moment
1
 @hattifattener1 that's a waste of a comment – suggest something better or keep quiet
1
...and sealed -- this sounds like it's open-to-atmosphere at certain points.
1
@5226-p1e the tides have remained steady for several billion years, they flow in 2 directions alternating twice a day based on astrophysics, currents similarly don't vary much because they're driven by geophysics so are reliable for thousands of years.
1
@Go2Results all I said was that tides are predictable (for centuries in advance), I don't understand your comment.
1
@5226-p1e sorry, I wasn't clear, where grid-scale hydro-power turbines are placed the flow is in either one or 2 specific directions (current or tide) & doesn't vary unlike a wind turbine which has to cope with erratic directions from any point on the compass. Currents are driven by the rotation of the planet & tides by gravitational attraction to moon & sun, the wind is driven by much more chaotic forces. There are places where the flow is turbulent but for a grid-scale installation there's no need to use them (local installations might want to use turbulent flows if there's nothing steady close by). There's more power available in steady flows & it's easier to harness. When tides change direction there's very little power available so it doesn't matter that turbines take a while to change direction, watch some time-lapses of boats at anchor & you'll see what I mean.
1
If you can't be bothered to research your topic don't post a derogatory comment 😂
1
@ICDeadPeeps the world's first city, Çatalhöyük (approx 7,100BC to 5,700BC, population up to 10,000), didn't have streets, access was across the roofs & each dwelling had a hatch & ladder. The wide tree-lined boulevards of modern cities weren't even a consideration.
1
We are on track for 3.7°C to 4°C if current pledges are upheld, something which seems unlikely. I'm just glad I'm old enough that I'll be dead before it really 'hits the fan'. My children aren't going to like it though.
1
@antronx7 propane liquifies at quite high pressure too, you can hear the pump struggling when it fills up your campervan LPG tank.
1
partly because it's a highly mobile multi-part system that might not still be there once you've figured out where it is & sent enough missiles at it to overwhelm it.
1
it's way too late to avoid this war, it's already been going 150 years & won't end till one side kicks the other out of the country.
1
The Zionists started with sticks & guns, Palestinians weren't & still aren't allowed even that, just a headscarf slingshot & rocks off the ground. The creation of Israel was the UN attempting to impose a "2 State solution" but it was never policed so history has unfolded the way it has.
1
I don't see why they would remove any component of the air?
1
@antronx7 does Lake Ontario have flow? If so that thousand years per degree is being distributed across other places, I'm guessing the Atlantic...
1
3:47 in the UK we've been told that Hinckley Point C is expected to operate for 35 years though the way they've coaxed older plants along that may well turn into 60 years.
1
this is how desalination currently works
1
that's how desalination filters work.
1
@WilliamSantos-cv8rr none of that matters because we're looking at trends not absolute numbers.
1
politics
1
there have been plans for barrages since at least the 1700s (mostly near the nuclear power plant at Hinckley) but none have happened, the closest so far is the Swansea Bay lagoon which is fully funded & fully designed, with permission from the Welsh government, it's just waiting for permission from the English government
1
The UK has pumped-storage hydro for exactly that purpose, pumped-hydro & nuclear were built in tandem in the early days so nuclear could run hotter (& produce more weapons-grade plutonium).
1
@DaveEtchells so the technicians (& consumers) need to go through their unions & government to refuse to work on bottom-dollar equipment that doesn't have trustworthy gauges built-in & also doesn't have leak-proof test points. The manufacturers will sort their kit out pretty quickly. The difference between no gauge & a quality gauge is a few cents at manufacturing volumes, there's no proper excuse. Problems have solutions
1
@DaveEtchells you're dealing with ammonia several times every single day of your life, it's part of the smell of urine. Problems come when there's lots of it like in a factory but factories have been finding solutions for many centuries, it's a well understood material.
1
@allah___maadarchod they're working on that
1
@ipp_tutor the end of copper is in sight, we've dug up almost all of it which means that transformers are becoming more expensive plus we're getting more worried about losses so electronic Voltage changing is rapidly taking over the networks.
1
@johnschneider931 many domestic grid-tied inverters balance themselves to the grid's loading by sensing frequency already, making this mandatory shouldn't be difficult even at a global level, thus automating load balancing to an extent. I understand the infrastructure for UK's Smart Meters can also signal from the grid for domestic generation to increase or decrease supply to the grid & there is a mechanism for large consumers to be requested to disconnect loads, eg Tesco's refrigerators are switched off for 15 minutes on request from the National Grid.
1
@sz5736p the 300 mile transmission limit you cite has already been superseded by a large margin. I don't pretend to know the physics of it but it can be seen 'on the ground'.
1
@daivonclark5151 at the time the world's navies were transitioning from coal to oil "who controls the oil controls the world" was reasonably true, that controller was the British Empire, but then the Empire collapsed & lost control of the Arabian oil, the 1953 installation of the Shah of Iran was Britain's last significant attempt. Since then OPEC & OPEC+ have formed & they're not interested in World Domination, their one major shutdown in 1973 was solely to inflate the price, nothing political. USA attempts political control via oil but it's success is limited (see Venezuela) & Russia is trying now but again with limited success (see Hungary & the EU). Oil is distributed worldwide about as evenly as potential for renewables (every country has some, a few countries have a lot) so the potential for attempts at domination are still there.
1
@sjsomething4936 if you believe the hippies what we're seeing is the last throes of the Piscean Age & we're already transitioning to the Aquarian Age so it will all settle down soon.
1
@sjsomething4936 whilst sufficient generation from renewables & very long-term resources like geothermal are definitely possible we suffer from politics & from fashion so it will take a very long time for this to happen.
1
@ThomasBomb45 no, Ukraine's energy problems are from the invasion & Russia blowing up infrastructure. Ukraine generates its own electricity & transmission lines for electricity, gas & oil all work just as well in one direction as the other, Ukraine can & does take supplies from all its neighbours. There are problems where those neighbours have become overly-reliant on Russian supplies so cannot supply Ukraine but that situation is being resolved.
1
oil refineries can already take in any hydrocarbon & convert it into any other hydrocarbon, that part doesn't need to be re-invented.
1
0:22 we were told nuclear electricity was going to be so cheap it would be un-meterable. How did that turn into the most expensive by far? Strike Price for solar is around 5p, it's over 95p for nuclear!
1
@gerryflores88 I think the forces will be more comparable to hulls than propellers but yes, erosion is a consideration.
1
it's been in place for years
1
If you're thinking about collecting lightning you'll want to check out Catatumbo lightning it's where the most lightning strikes on Earth happen. There's a Wikipedia page with that title.
1
Swedish submarines use that heat to run Stirling-cycle engines to charge the propulsion batteries.
1
USA's retirement age is blurred with eligibility for various components varying between ages 62 & 70.
1
You have taken an overly-simplistic view of the role of robots in employment statistics, in reality employment increases with adoption of robots.
1
wave energy is a different field to tidal, equally valid but not the topic under discussion.
1
Aeromine
1
No, this one is quite young, it started in the 1850s. It would have sputtered out by now if Britain hadn't disarmed one side & armed the other when it joined the fray in 1920 bringing hundreds of thousands of new participants.
1
@calebbearup4282 I think the 1850s may have been slightly before WWII
1
@calebbearup4282 religious conflicts between different religions aren't a major issue in Arabia. There's occasionally flare-ups between different sects of one religion but not between religions. Israel isn't about religion anyway, despite the propaganda, the fact they've only ever had one practicing Jew as Prime Minister (the last one, Naftali Bennett) is a good demonstration of that.
1
@calebbearup4282 all the Abrahamic religions were born in Palestine & there have been Jews there ever since. These religions are updates on previous ones which is why Islam is the most popular.
1
@calebbearup4282 try watching the movie Farha, it's a dramatization of one of the events. I can't watch it right through, it's too upsetting.
1
@alberthartl8885 heat recovery is generally part of Passivhaus – it is on domestic scale right now.
1
@TwoBitDaVinci agreed but please stop using title screens that imply that the current vaporware is something you can find in Lowes.
1
12:48 wasn't the Texas energy shutdown a couple of years ago because the crud in gas supply pipes froze? -- Gas pipes are not clean! They're not even much cleaner than oil pipes.
1
@TwoBitDaVinci in your talk you don't note that tides peak at different times in different places with high tide occurring somewhere throughout the entirety of our 24 hour day. Transmission lines seem to be the solution to variability.
1
@dianapennepacker6854 an investor's first thought is that aquaponics is a 1960s fad that's now only used for illegal drugs so they're not interested which means that if you do get up & running, when something expensive breaks your business has collapsed before you find funding for the replacement part. Economics & its fads, not science or agriculture, is what's killed aquaponics.
1
There's lots of different ways of doing Stirling cycle, some are bigger than others.
1
@H0mework that's why most countries got together at the UN a couple of years ago & banned nuclear weapons outright. Well, apart from the 11 countries that already have the things.
1
I wouldn't trust a thankful of compressed/liquefied air much beyond about a decade, maybe two decades, I don't know if that helps?
1
@garethbaus5471 Most of Europe & some of north-west Asia have reduced energy consumption since 1965 according to Our World in Data but everywhere else has dramatically increased (up to 40x in some countries) so we consumed 165,320 TWh just in primary-source electricity last year. How much area at 500W/m² would we need to collect that amount of energy? (allowing for losses).
1
this seems to work by freezing & thawing the working fluid, albeit by desalination. I'm fairly sure it would adapt to different climates.
1
@trapfethen refrigerators & HVAC cycle on & off...
1
@Bot.number.69420 a AA battery, technically, isn't a battery, it's a cell. A battery is a collection of cells & 'cells' could be anything, for any purpose, down the road from here is a fort that, when operational, was a battery because it had lots of guns. Isn't language fun sometimes?
1
As I understand it, it was the Romans who kicked the Jews out, the Torah is part of both Christian & Muslim holy text, I don't see why they would kick it's writers out. The people of the Holy Lands don't behave like Europeans.
1
True but we live in a world of misinformation, disinformation & propaganda, a world of lies, so most people will pick the side that continues the horror.
1
@TwoBitDaVinci or reversing pump
1
My solar setup is giving around 150Wh a day this week & the battery is hitting the low-Voltage trip every night.
1