Love this content!

May be thinner blades are cheaper to produce.

I hate when people call them "Windmills". There is no "millin'" goin on, folks. They are making power, not flour...WIND TURBINES

Brilliant video!

Hm. Good.

Turbine*

*wind turbine

0:52 Let the wind push the wind

All good until ruined by Bill Gates, a dangerous capitalist who wants to profit from trying to save life on Earth. If he didn't see a buisness opportunity in climate change, he wouldn't be interested. He's a sociopath. While it's a good thing if billionaires fight climate change, as opposed to selling us more crap, if we don't pressure our governments to act rapidly, we will go extinct. Billionaires alone will not save us. Please NOpostr, use your intelligence to question liberal orthodoxies, which exist to support the extractive and destructive capitalist status quo.

GREEN ENERGY Bet you didn't know, most of the parts for a wind turbine are built in Germany, it requires 60 gallons of oil to lubricant the turbine. ( where do you think that oil leaks when a seal busts - onto the ground or into the water). The blades are made of a toxic fiberglass combination and are buried in landfills in Wyoming. The turbine has to spin continually for 7 plus years just to replace the energy it took to manufacture the turbine... It has to run continually for 50 years just to pay for the cost to manufacture and install the turbine....which is approximately $2 million dollars per turbine. However, according to the U.S. Energy Information Administration (EIA), the lifespan of wind turbines is only about 20 to 25 years. @ShroodNews 🇺🇸

Small imprecision: the max you can extract from the wind is 89%. That's the max efficiency of a wind turbine, whereas the max power coefficient is 59% as the video says. You don't believe me? Go to 1:05 and look at the difference between A and A1. If you divide the extracted power by the power available on the area A you get 59%, if you use A1 which is smaller you get 89%.

missed that windmillls also tend to be oddly bladed this is so the windmill ends up easier to get going and stay going

.

Also they take energy from the grid to get the blades turning so they are never generating as much energy as you might think.

This was a beautifully concise video. Well done.

I wonder how/if this technology could be applied to more traditional windmills that do things like pump water rather than generate electricity.

you want to stop climate change as fast as possible? go full nuclear and fix the waste issue later. the whole climate 'lobby' needs to focus on a priority. Is their goal a planet with the lowest amount of man made co2 and least amount of casualties per kwh? again go nuclear. At this point they are so focust on and no nuclear and green that they'll f it up in both ways.

After watching this video, my fan became windmill.

Wind “pass.” Not “past.” You aren’t a very good narrator, and you don’t have a good narrating voice.

Anyone else annoyed that they called wind turbines “wind mills”?

*Reduce the bass in your videos*

After watching this video, my fan became windmill.

Thanks to Anh Cuc Cuc, I know this channel. Indeed very good. Thanks.

Last semester I had a month-long freshman engineering project where we investigated all kinds of aspects of windmill design. My team struggled to understand some of the results of our measurements, and this video was a major epiphany moment for me. For instance, we found that power generation didn't necessarily scale with blade count - a medium number of blades generated the most power, and also allowed for a faster windspeed through them. We figured this had something to do with turbulence, but this video really put it all together for me. I wish I had seen this last semester!

A couple of years ago I read about a new desing: open ring turbines. Suppusedly even more effecient. What ever happend to those??

Normal NOpostrs: partner with skill share brilliant nebula curiosity stream etc. Legend NOpostrs: _

Nice video. With what we now know what would have been the best way to construct the old windmills? Ie we would have to use the materials that existed 50 and 200 years ago to pump water and grind wheat. What would they look like?

Bass riff is in 5/4 and this is the first time I’ve seen someone talk about in the comments. Interesting

That leaves the question, why are three wind blades better than two or four? It's because of stability and to reduce oscillation of the rotor. For example if a rotor has two blades one blade will be above and one below. Now the higher one will experience a higher wind pressure because the wind up there is stronger. Also the lower one will experience less wind pressure because its lower and because the supporting tower is in the way of the wind. This leads to strong pulsating forces on the tip of the tower. If you have three blades instead, everytime one blade points straight upwards, there will be two pointing downwards (as kind of counterweight), decreasing stress on the wind turbine.

Bill Gates is garbage, he does absolutely nothing useful. Long live Elon Musk!

optimized not for peak power, but low speed wind operation and better torque. Source: Graduate Level Wind power design course at the Technion in Haifa, Israel.

...So I read the thumbnail as “Why don’t windmills have *snails* and spent the majority of this video wondering when the preamble would be over and he would get to why snails don’t chill on windmills

Some windmills do use sails! Go to the Netherlands! The cloth sails can even be adjusted for different wind speeds.

A modern windmill solely mills. A wind turbine generates electricity.

As always on top 🔥 Are there sports fans here?)))

Why do they use that specific windmill design though? Aren't there others that would work better?

I watched this to find out why an windmill with sails would even make sense. Still didn’t make sense of why sails sounds good.

Nuclear Power >

I'm assuming because it wouldn't work

2:20 conservation of energy doesn't say that, because conservation of energy only cares about the magnitude and not the direction of the velocities of the block and the ball. It's conservation of momentum that says that the ball ans block need to go in opposite directions.

"This video was created in partnership with Bill Gates" isn't something you hear every day.

我的这篇为主的文章上网评论仅仅十几个小时，就统一被封杀了。（Subscribe for regular science videos: ​@t for DAILY videos: @t 18个量子比特纠缠是什么？量子计算机为何如此强大？李永乐老师讲量子的纠缠态与叠加态 738,479次观看•2018年7月6日 （量子力学被推翻了？并没有！量子跃迁需要时间吗？ 89,161次观看•2019年6月17日） （耶鲁科学家验证量子跃迁确属连续过程，并成功开发量子跃迁 ...@t › ... Translate this page Jun 15, 2019 - 在研究中，研究人员通过特制的高速监测系统，成功捕捉到了量子跃迁将要发生的起始时间，并以此在量子跃迁进行到一半的时候人为逆转量子态 ...）李辉林注：这是我的论文“动力学基础理论的提出及应用原理示意”发表9年后；“宇宙物质结构动力学”网络公开（国内7年、国外5年）后，看到的第一篇国际论证“物质非能量转化”地足以推翻杨振宁“量子伪科学”为封建专制服务，及抢劫、剽窃“宇宙客观真理”否定欧美文明地权威佐证报道。 李辉林评论：总书记高呼“要发展量子科学”。就像《水浒传》开篇将所有的封建文化狗奴和伪科学骗子、牛鬼蛇神、妖魔鬼怪全都放出。几年前被我驳斥藏匿无影无踪的陈词滥调又都删除我的客观科学评论后重新放于网上。上Google网上去查看原文，却只有标题没有内容了。看来都是被那些科学巨骗们忽悠的（大陆伪科学的癞蛤蟆们一叫，台湾的伪科学癞蛤蟆们也都跟着一起叫。当然首要的不是为了某个政治人物。而是只有维护文化精神领袖，才能巩固不劳而获靠嘴巴成就生存“真理”的伪科学、文化、知识垃圾精英的荣誉、地位、利益。）！想用“电子光”物理作用，人为地设计一个“量子”伪物理概念替代 [本来想用“电子跃迁存在不连续的突变”来解释存在“物质与能量交换的量子过度现象”。被耶鲁大学的科学实验证明“电子跃迁是连续的”而破碎：薛定谔的“猫”从来就是鲜活的“电子”，是被人类所谓的科学精英们自己始终坚持近百年装死制造出地幻觉“量子”彻底死了。就想干脆用“量子跃迁”混淆、取代占有“电子跃迁”回避掉其“物质变能量地不连续性”。]。设计出“量子”的原始定义是“物质与能量地相互转化”。那么它不论作为物质还是作为能量都应该是可以实际收集储存（存在）的。可它与“光”一样只是在电子的“得”或“失”时地物质结构力地一种反应现象，电子平衡时“光”就没有了踪影（此时的元素没有电子成对地一入一出，而“量子兔成对出现就纠缠无踪影”了？），所以是不可收集储存与直接使用的臆造物质与盗窃物理现象，仅仅只是将“控制储存的基本物质电子运动，引起物质结构能量反应出的光现象及利用其物理特性，进行比特（状态）再分解（光的路径、偏振、角速度还可以做若干地分劈）获取更多的计算机运算、存储的开关单元。但是最终必须还是要还原成电子物质才能进行有效的存放。”。如“有光”（1）与“无光”（0）的计算机存储，只能靠电子的“得电”（1）与“失电”（0）来实现的。其讲解中除了将“量子”当做佛祖的名号供奉于神坛，就没有介绍出任何其具体有地实际作为。所以其“量子”没有任何实际意义，只是盗取、占有了“电子与光的物质结构与能量变化反应”的关系地“伪科学概念”。如果没有电子运动，“光”就不可能存在，“量子”更完全是垃圾科学家们脑袋里多余的“狗屎”。以你们的这种“科学理论思维”：高锟先生的“光纤技术理论”，还有“光碟信息技术理论”就都应该脱离“以电子为基础技术理论”而归依你们臆造的“正统”，作为“量子计算机的辅助材料理论”叫“量子科学技术理论体系”了？如果再对计算机追根寻源，其人类发明的第一台计算机就是使用“电子管”靠其发光运行计算、存储的，不就已经是你们这种欺骗逻辑的“量子计算机”了吗？逻辑理论上就是“挂伪真理的狗头，卖科学的羊肉。”，盗用一些成功的实用科学手段，去“证明伪真理”主观意志。将自然科学主观复杂诡异化，成为被主观封建专治说教控制地典型教义。（国内外都统一地封杀我的个人网页上的科学论文、评论、《证据》，只允许我做些时事评论，不允许做揭露伪科学的评论与论述。预示着“人类社会的专制与“民主”都从意识形态上正在接受、效仿伪基础科学欺骗性地思想认识方法，用主观搞乱客观而趋于统一去专制、奴役人类！”。2020年12月7日） 牛顿第二定律，当加速度等于0时，物体要保持原来的运动不变，就必须要克服其物体继续运动的阻力反加速度，平衡这个反加速度的一个相等的加速度存在。爱因斯坦的“能量”也只是抄袭了工程力学缺失了阻力能量、极不准确的：“E（能量）等于m（质量）乘以c（速度）的平方”地物体做功公式，以为这个物体运动公式产生出的不等E=M²C²式（速度越高质量越小），是因为“能量与质量存在互相转化”！所以就假设其中间存在一个转化媒介“量子”使其能够“被平衡”？完整的能量公式应该是“E等于M平方乘以C平方”。质量可以影响速度，速度影响不到质量。能量“消耗”的只是物质地结构（如分子结构、原子结构），没有消耗任何基本物质（电子、质子、中子，“能量”只是在改变这三种基本物质的排列组合时地“结构动态反应”动力现象。）。自然中不存在量子，宇宙不是产生于大爆炸。这不是质疑大师们的数学能力，而是其眼界和思想广度与深度的客观逻辑性地积累没有达到能够包罗宇宙所有事物。 F=ma 0=m0 ? （加速度等于零时，物体运动不需要动力？） F=mv=-a'm=F' （物体做匀速运动时，加速度等于阻力加速度。） E=M²C² （校正爱因斯坦缺失了阻力的“能量公式”，E=M²C² 为正确的能量等于质量的平方乘上速度的平方。） 我在国内（包括网络上）如此讲了十多年，又在国际网络上讲了五年。没有一个专业科技人员肯公开出来讨论，甚至辩论。其一些被我点名的中国国家权威们面对他们的虚伪、欺骗、抢劫，也全都始终选择保持静默？而不是被诽谤？名誉受到攻击？却只能动用权势，在国际网络上对我提出的“国家伪统治体制事实”进行全面封杀！认为我在此种情况下（得罪了东西方文明，遭国内外共同封杀。）不敢回国去。可是我还是于2019年9月至12月回国呆了3个月，有惊无险地回来了。因为我说的是纯粹的自然科学与客观经历、无党无派独往独来，他们不敢轻举妄动并不会是害怕李辉林，而是害怕其潜规则强盗科学与真理在全世界曝光？或者在欧美的态度与其一致的情况下，他们仍然还不坦然地害怕？ 【爱因斯坦晚年信精神，怀疑物质！】那是因为爱因斯坦只知道宇宙中的所有物质都是在“相对性”地不断变化，由存在到“消失”的。却不知道他们全都是由“绝对性、客观真理似的”不可被消灭或创造的基本物质：电子、质子、中子地相互关系（只存在万有引力与万有斥力地物质结构能量关系，。）与排列组合（能量只是改变物质分子结构或者原子结构所产生出的，并没有消耗任何基本物质。）而成的。以至于整个宇宙地不断变化却又永存地存在。如果爱因斯坦还健在，他看了我的“论证”，他还能如此为自己提出的“能量与物质相互转化！（并引起人类基础科学界半个多世纪虚假地猜想、臆造、欺骗。）”而迷茫吗？或者也会像整个中国的科学、文化、知识分子们及那几位华人诺贝尔物理学奖获得者那样地不敢面对，却又觊觎将其中拆零分散而获得一个个“重大科学突破”立可见成效的客观事实？ 上帝从来不现身于人类，只是为人类创造了一个“三基本物质”组成的客观世界，出了一道“客观宇宙”题，如果人类还不能正确认识、解释这道客观题的结构与运算，怎么有文化、资格谈论与见到上帝？靠什么去描绘、解读上帝？难道上帝也是个希望见到什么都不会表达，只会编造花言巧语吹捧他，表示愿意为他做奴才的那种人类？人类有史以来只是我首先提出了“宇宙客观真理及关系”，就是基本物质电子、质子、中子地性质、结构、运动、变化关系组成了整个宇宙。宇宙中所有的事物，包括人类自身的物质结构与运动变化，及思想、意识、行为都是这种基本物质地运动变化所产生的。在这宇宙整体客观真理面前，人类所有的先知先觉、文化圣人们，所有所谓的科学、文化、知识都只能算是其中主观臆造或者片面客观的认识；人类所有科技、文化、知识累积到现在，都连面对、探讨这个客观真理的知识能力，甚至态度都还基本不具备。

【被杨振宁带领中科院抢劫、剽窃，用于否定牛顿和爱因斯坦都错得离谱的科学论文（理论及公式）之一。】 （第八/八） 【注：此宇宙物质结构的动力能量原理分为上下两篇文章论述，上篇以数理分析论述为主，所以有大量的数学公式和图表在论文中，网络上不能正确传递讯息。所以就不完整上传，只上传“内容提要”之前部分。因为此论文2009年投稿钱学森创办的《中国力学》被建议改投“物理类”而转投杨振宁创办的《中国理论物理》，被杨振宁带领中科院截取剽窃，并用其理论和公式否定“牛顿与爱因斯坦都错得离谱”！可他们不知道该论文2010年被中国科技部科技学术杂志《中国新技术新产品》发表（论文标题被该期刊封面采用。），国内刊号:CN11_5601/T；国际刊号：issn 1673_9957。如果有兴趣可以在网上搜索。其论文的副标题就在提示与牛顿力学及爱因斯坦的相对论，是继续探索、发展中的关系，并不是要去颠覆否定。2015年开始在国际网络上指出杨振宁获诺贝尔奖的论文的虚假成分，及吴健雄为其证明手段做伪。2017年杨振宁弃美投中，否定美国教育及基础科学都落后中国！当我提出在我的个人网页上有科学论文理论、证据、资料可以充分证明其抢劫、剽窃时，就将我的国际网络上的个人网页、个人邮箱、云端资料的账户和密码全部封锁。甚至连网上“评论”功能都被取消（直到九个月后的2020年1月我从国内回到居住国后，才唯一开放了我在国际网上的部分评论权限及部分网页功能。）。当然杨振宁是东西方共同最高文明的代表，在国际网络上受到如此地保护，是不应该只局限在哪一方的。2019年12月上旬我在国内与曾经发表了上篇的出版社联系出版下篇一事，被告之：再不能在国家级刊物发表，在取消英文标题、内容提要、关键词，删除论文后面的“说明”并必须注明作者所在单位后，可以在省市级刊物上发表。在此上传其完整的下篇、是在上篇的数理理论的基础上，从最微观世界到最宏观世界，论述宇宙及所有物质全都是由不可消灭，也不可创造的电子、质子、中子三种永恒地最基本物质的性质和相互作用变化所组成的各种物理层级与各种变化现象。所以宇宙自然当然就是永恒存在的，不断变化的只是这三种基本物质在其中的各物理层级地排列组合。当然在我这个网页上的其它文章中还有一些论述涉及到，但是更大量的证明资料、图片、文章现在还是不让上传的。即使以前成功上传的小部分也是被网络封锁删除了的。 引发这两篇论文是因为中国电力机车科研制造系统在上世纪八十年代末引进、仿造并声明也达到了国际先进科技水平的机车，在应用中动力系统却出现严重、研制方始终无法解决的问题。直到严重干扰铁路运输秩序与能力时才邀请我跨界（时值2002年底，已从科技口转向技术质量监督多年）查找处理。2003年初我就检查分析出（技术科有一专业工程师配合做测试）：该型机车动力源原理设计错误、使用理论落后、应用技术指标倒退。并提出“脉流恒功率动力理论与技术”，将全面论述文章投给株洲电力机车研究所并通告刘友梅院士；同时申报郑州铁路局机车验收质量奖，被推荐到获铁道部机车质量优秀奖；向所在单位申请每台机车十万元、一年完成，可使机车节省能源百分之五十以上；或增加牵引力一倍；或提高机车运行速度一倍。三年再完成更大科技效益提升地创新研制。全被搁置不理，只好在04年以郑州局派驻部门身份申请郑州局05年科技立项，却引起了05年初“武汉铁路局从郑州局独立出”，也要完成对这项科技创新地全面阻击的大动作。只得为“科技强国献计献策”向铁道部、科技部、国务院、中国工程院、、、投递资料信息。都说：牵涉到院士，超出权限管不了。国务院推给中纪委，中纪委又推回国务院。此时胡锦涛就提出了“与伪科学和谐的社会发展观”，国家08年也就声明：已于05年就全部淘汰担当中国最主要的ss4-9六种主型、2000多台、国际先进的客货运机车。其中吹得最响的ss8型研制出才两三年、ss9型研制出才一年多。为了鬼魅般的面子，就一定让这上千亿的人民血汗钱如此打水漂？也不敢让我改装一台试验！更不惜暴露颠覆其邪恶统治制度？ 以上两篇基础科学论文是产生于之前探索发现国际国内机电动力理论基础缺陷后地提升。 从1980年就专职负责机车动力无极调速试验（首创数字自动化在机车上使用，无极控制机车动力调整。），解决了众多科技问题并取得了唯一成功，被铁道部全路机车推广采用。从此开始30多年不间断地对机电动力恒功率研究。其论文“东风4型机车无极调速结构、原理及应用”就提出了实现将牵引动力“软化”向“恒功率化”的科技手段。其论文投稿《内燃机车》杂志，因与主要负责人学术流派不同，被搁置了11年，于1996年他临退休前才得以该杂志发表。 “对国产电力机车设计缺陷的发现、研究与探讨”（实际进口的二、三代电力机车也存在同样类似的问题）、2003年投稿《机车电传动》遭封杀。院士答应了给发表而又不让发表。2012年9年后才由非铁道动力专业的中国技术经济研究会价值工程委员会会刊《价值工程》发表。 “能量有效利用、恒功率理论概率”、2004年再遭《机车电传动》封杀、同年科技部调解无效。但参加了国庆56周年庆典入编《国庆文献集》。提出了最先进的动力能效理论。 “脉流恒功率理论的应用技术实现”、2007年中国科协年会宣讲（邓楠组持、俞正声到会、近百院士、全国各路7000科技精英参加。）、并提出请杨振宁与有关专家审查，我随时答辩。也作为会议反馈表向会务递交。被《科技咨询导报》发表，其标题被该集刊面采用。（中国航天科技集团主管、中国宇航出版社）。 “机电动力变速理论向恒功率理论发展的先进性与实用性”、2008年《中国科教创新导刊》、 （国家科技部主管、科技文献出版社出版、提出了国际最新最先进的动力理论。）。】 动力能量学基础理论的提出及应用原理示意（上篇大标题） （动力学基础理论的集合及牛顿力学定律的定位与“能量守恒”、“相对论”的关系）（上篇小标题） 中国湖北武汉 李辉林 内容提要：牛顿力学诞生于300年前现代工业的萌芽期，所研究的对象基本上以重力、爆炸力或弹道力为主。工业科学发展到今天，牛顿力学作为动力学的基础也应该随着动力发展而发展，要能够对所有动力（包括人为动力）现象有一个统一完善的理论体系。如：机电动力、热动力、流体动力等，已经是人类生存环境无处不在的重要部分，但用经典的牛顿力学来完整地解释它们却存在一些问题。最根本的原因是经典力学是以常规一次性施力为研究对象，现代力学要面对的多是持续性施力的情况，而光电动因、宇宙大爆炸论的出现更需要统一的理论。论文要解决的是经典动力学与现代动力学共同的“动力微分关系”，和“变量到常量”“量变到质变”的不同关系；特别是人造动力装置往往是将动力与运动体做成一体，就容易混淆质量m与作用力F的主从关系a、功能关系Nt、表里状态V。将牛顿定律各自准确地定位于动力学系统中，从而实现了经典力学与现代动力学的统一，包括与“相对论”的通解。同时也揭示了持续动力在变量与常量的交替中，可以主动地获取更大的做功能力和更多的能量利用效率。这也解决了一些动力学应用中的一些困惑和五花八门的做法。 Abstract: in 300 years ago the Newtonian mechanics was born during the modern industry germination times, basically the gravity, explosive force or trajectory force was primarily studied. The industrial science develops up today, as the kinetic foundation the Newtonian mechanics should be developed followed by dynamic, have a complete theory system to face all dynamical phenomenon (including personal force). Such as：electromechanical dynamics, hot dynamics or hydrodynamics and so on , it is the most important part in all personal living environments. There will have some questions if they are interpreted by the Newtonian mechanics. The most basic reason is that the Newtonian mechanics takes the disposable use of force as the object of research but the modern mechanics mostly needs to face the situation of the long-enduring use of force, and photo-electrical and the Big Bang Theory

inb4 some trump supporter bursts in here babbling about how this is all a satanic communist teletubby conspiracy to steal our testicles.

Yea just don't rely on them for power like you can with fossil fuels...... looking at you Texas and Communist Socialist California.......

Please get your facts right. Windmills are directly connected to millstones to mill grains. They use sails to generate more power. Wind generators use blades to generate electricity. Two totally different systems

I miss the wind

NERD!!!

Welcome back

Brilliant!

I can't tell you how many times I've wondered this as I bike past the old Dutch windmills at Golden Gate Park. I figured the new design must be better in some way, but I couldn't physics it in my brain.

I wonder what makes a good vertical axis windmill

I still don’t get how they make the wind blow.

I was just here for a discussion of winglets and it never came

Anyone else annoyed that they called wind turbines “wind mills”?

Airfoils are very efficet and there are several sail boats that use airfoils.

“What kind of music do you like?” “I’m a huge metal fan”

Windmills are not "renewable energy" they are made by parts that go bad and need to be replaced. Since they arent made from wood or recyclable material, they are not renewable. To actually have "renewable energy" you need to have generators built from 100% recyclable materials. Neither solar nor wind are made from such, so are non-renewable

Kind of sad the old traditional sail design did not get a passing mention. You know, the wind mills that actually mill grain.

bill gates, lol

This is all fine and dandy, for 2 dimensional windmills. While 3 dimensional windmills might be theoretical At the moment doesn't mean they won't exist in the future. Main selling point of 3 dimensional windmills being they don't need to worry about slowing the wind down, cause they don't rely on the wind passing them by, rather they count on the wind to more the entire windmill (blade area) around causing the blocked wind to push on the slowed wind what pushes the blades with more energy what causes the windmill to move more and, well, generate more energy.

modern windmills modern windmills modern windmills modern windmills are you serious? i have a bunch of those "19th century design" wind turbines at my farms that i put in the last decade. they're not outdated, they have a different function. i don't need a 130m windmill to pump water from a few meters underground. geez.

"sponsored by Bill Gates" Ah, that's why there are over 1k dislikes. Fucking conspiracy nutcases are coming out of the woodwork.

I'm positive you could find a sale on windmills if you looked hard enough mate

Blades of a wind turbine are so long to take advantage of the lever effect it gives you, since most of the power is generated by the end of the blade, because of the lever effect.

Mmmmm, climate change can't really explain it. If that was the reason we'd have thorium reactors.

I was with you, right up until that college dropout that stole an OS design from Xerox. Gates .

The ideal windmill is 1, not a windmill 2, a steam turbine fuelled by nuclear power. Less dead birds, less ugly nature, LOTS more power.

Why is it, it went from "Global Warming" to "Climate Change"?

Wind mills are, thus far, our cleanest and most efficient ways of harnessing solar energy.

Bill Gates = thumb down...

but why windmills? they are big, expensive, need constant repairs and part replacements, and the production of their parts releases more CO2 than a gas plant will produce, so why windmills? if you really want emission-less power, why not nuclear? there are no emissions at all, and it produces an insane amount of power, the waste produced in its lifetime will be only at most a few dozen gallons, and they almost never have any problems that result in meltdowns (there have been 3 meltdowns in 60 years, and one was caused by a tsunami, and there are thousands of reactors in existence). so why not nuclear?

Bill gates is a shmuck and the climate emergency argument is blown way out of proportion

they are wind turbines, not windmills tard.

thumbnail: me: are you dumb?

Wow so densed together and i loved every second of it!

I was in my hometown with lots of windmills last week and I wondered this, weird to see an answer so quickly

"how to avoid a climate disaster", by: a fucking biliionaire. No thanks.

So, why are there no windmills trying to capture the energy of jetstreams?

What about bladeless windmills??

This is a great summary and well explained thanks

Why do wind turbines keep basically the same directional axis? Thinking similar to the Pelton wheel turbine, If the wind was redirected (say outward like a centrifugal pump but sloped such that a pressure gradient doesn't build up to heavily) then wouldn't the subsequent incoming wind still have somewhere to go, yet have more of the momentum absorbed and converted into energy?

2:30 interesting, but why?

I still not understand. How about water turbine? What is still working?

Just cover the technically-provable stuff and leave out the politically-correct unproven shit out of it.

Though the problem with high velocity windmills is the amount of noise they make, and as you said parts of the blade that aren’t moving at the same velocity which increases stress in the blades. They solve this by lowering the velocity of the blades but using a gearbox to convert high torque and slow speed to lower torque and high speed gears which can then convert mechanical energy into electrical energy.

Who needs windmills we need nuclear.

But isnt the wind energy turned into friction instead of rotational energy in fast moving windmills?

Like ??????

I also thought that practically smaller blades are used due to cost factor right? Just like any other engineering project, cost also plays a role in designing things in my opinion

The analogy with the ramp and the ball is incorrect, the faster the ball is sent to the right the more horizontal energy that is being transferred into the block, the opposite is being proposed in the analogy.

so why not 2 blades?

Doesn't matter because wind energy is poorly orchestrated scam designed to weaken infrastructure of western countries Heyoooooooo

I didn’t even know that I was curious about this

Does it not have anything to do with possible damage if the wing is blowing too fast? I would imagine larger blades would be more susceptible to deforming the stand or the blades themselves if they were bigger.

What’s Bill’s carbon footprint? I.e. does Bill walk it or just talk it.

Here we go again, minutephysics controls Bill Gates and thereby the world...

And, the fast moving blades end up going 120kph or something at the tips, so take massive damage, and kill birds. Slower 'less efficient' blades are better, the SHOULD look like slow moving sails, less repair and wild-life damage.

Wings mills and a wind turbines are two totally different things.

I kinda expected you to go over Dutch windmills Because the windmills are quite different then for example more southern windmills in Europe The people who operated these windmills figured out the shape and angle of the wind to capture the most wind power out of the wind to do grinding/sawing/pumping and the Dutch windmillers reached their maximum efficiency when they were forced to compete against Steam pumps in the mid 19th century