Hearted Youtube comments on Two Bit da Vinci (@TwoBitDaVinci) channel.

  1. Rel life numbers: I bought a Model S in 2013. I got about 265 miles on a charge. 6.5 years later, I get about 259 miles on a full charge. So, the big range degradation story is a myth.
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  2. Here we are in 2018. My electric bill is $300 during the summer. I would love to get solar panels installed on my house but our neighborhood HOA's bylaws state " No energy conservation equipment (solar / wind) shall be installed on any lot"! Total BS!
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  3. Cheap is good...and weight is not really an issue for stationary batteries.
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  4. I wouldn't do a tower per say, I would instead repurpose an Oil tanker sized ship. Have it go out to sea, collect the water then bring it back and pump it into holding tanks. This improves collection because you can send the ship to places where conditions are ideal and you can use deep (cold) water pumped up to the surface to cool the condenser. Plus you wouldn't have any visual pollution of large towers just off shore blocking the view.
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  5. If designing a still-suit for cooling in the desert don't make it black. Super reflective white makes more sense.
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  6. Ricky, sorry for a long write-up but as you will read on it will make sense. I moved to Barcelona from NC back in 1989 for a 3-5 yr job which ended in my finally retiring here after falling in love with Spain, Barcelona and lifestyle. As usual, I went to Sagrada Familia in back then for the first time and was thoroughly impressed but it was still just a shadow of what it is today. Back then, and looking at how little it had advanced throughout the years, I thought it would take at least another 50 years. I remember my wife and kids going up the towers by the circular staircase, I refused, and they told me about the broken glass that is cemented in the top of the towers to reflect different colors - talk about designing detail few would ever see. Every to time friends from visit it is an imperative to visit Sagrada Familia and I see the progress which has been impressive. The construction has been advancing and I do believe that they will meet the timetable of for Gaudí's 100 yr death anniversary. When you talk about the inverted structural sand analysis it reminds me of my first thoughts upon seeing it. As a civil engineer, although never actually worked as as one, it reminded me of the structural classes with vectors which are a very graphic way of designing relatively simple structures but in this case taken to an unbelievable level. As a final note on Gaudi may I say that Gaudi was a genius and the only architect I know that when you see a building he designed you can immediately say THIS IS A GAUDI. There are 2 in Paseo de Gracia Avenue in Barcelona, Casa Batlló and La Pedrera, as well as Parque Guell which are worth a visit. I never forget a company Christmas dinner we had in Casa Batlló where you could see the detail even in the individual doors/frames to the apartments which are just unbelievable. I also remember seeing on visiting Leon where immediately remarked this is a Gaudi. Lots of respect to the man's genius.
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  7. Cloud seeding has been around for decades....I can recall my dad talking about it when he was a forest operations manager for the MNR here in Canada. They seeded the clouds to help make it rain to help fight forest fires. Climate conditions had to be right though for rain to actually happen. Right humidity, right clouds, right temperature range, etc. Pretty neat when used correctly for the right reasons.
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  8. You forgot to mention Shadow Mode! Tesla use the 'redundant' second CPU to run Autopilot code which uses all the same inputs as the 'live' CPU but doesn't have any output. Tesla continually and silently push updates that only run in shadow mode, to check that it responds in a safe way (e.g. the same as the live CPU or human driver). In this way, the code effectively gets real world testing in 500,000+ cars but without any risk of anybody dying if there's a glitch. No other company has anything like this for testing. It's an absolutely massive competitive advantage!
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  9. What an INFORMATIVE VIDEO! As a 30 year Ford retiree, and having several F-150s...I am ready to go electric. You gave me some very honest points to ponder. Thank you.
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  10. In before Elon sees this and figures out a way to tweet something to get him into trouble ;)
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  11. I forgot to mention, I have a Model S with 80,000+ miles and spend only 1,200 in maintenance for tires. No other costs. Didn't need to do the annual check up and it doesn't affect warranty either.
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  12. he didn't mention that they will be using scania diesel engines that meet all emission specs without a DPF which is huge especially a truck in the bush where you don't want to start a forest fire
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  13. Its also worth considering literally everything Elon does is basically testing and launching products to live on Mars. A base on Mars will need hvac so may as well start figuring out what works here, how it can tie into solar and battery systems, how a water capture system could work, then when 'we' go to Mars everything is ready, tested, proven to sustain life.
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  14. I'm Older, Retired .and I could not picture how gas cars would ever go away 'till Tesla came along ! there will actually be used Teslas each year that will be resold , and after a while, there will be enough of them , and cheap enough for everyone to have one , even me ! and then the gas car will be obsolete ,
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  15. I love that this effect is getting more attention from researchers. It isn't BS.
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  16. Last week the clean air as a result of this global lockdown, has been the talk of the day all around the world, with wonderful pictures of cities finally smog free... I am sure thousands upon thousands of people who were already weighing their options between an electric car or one more time an ICE car, now have definitely flipped to electric, as we now all can experience ourselves first hand what it does to our environment. Other people might not wait any longer and buy an electric car as soon as they can, I am in this catagory, thinking about doing away my gasoline car early and buy a Tesla... I hope the Model Y comes out in Europe soon.. WITH a tow hitch! I have a reservation for a Cybertruck, but that takes I think at least 3 years, and is way too big for me and our narrow roads and parking garages. So yes, that stupid Trump move is just a temporary band aid, and will need a replacement sooner than he might think. GM and Ford are doomed, speed of innovation at Tesla and startups like Rivian, NIO, Byton, Fisker, Lucid... Just to name a few, will together oblitarate the Old Legacy Automakers sooner then we might think, Like Tony Seba said, they will face "Market Trauma" just like Kodak, Nokia and GE in the past within this decade, Tonay Seba has brought his prediction forward that sales of new Ice cars will drop to zero by 2025, he used to say that would happen 2030. I like the video's you made lately quite a lot, therefore Liked and subbed.
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  17. I've been trying to conceive of an efficient "fuel into electricity" system for years, so I am also VERY skeptical that you can convert the energy twice and get even close to 80% efficiency. But I hope I'm wrong! I'd love an electric gas motorcycle that can go 1000miles on 4 gallons of gas 😊
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  18. So nice that you included your family and friends in the video. Warm feeling... and educational! This might be the video that sells my wife on the Model Y. We shall see. Thank you!!
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  19. Got my model 3, working on my solar panels.
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  20. For me, solar is worth it just to poke the fossil fuel companies and hangers on in the eye and stop filling the pockets of people that don't deserve your hard earned money. What could be better than clean energy independence?
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  21. "The stone age did not end because we ran out of stones". ~Amory Lovins. (Though it may take awhile.)
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  22. I’ve had a greenhouse with a photovoltaic roof for 10 years. I’ve always had good crops form it.
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  23. The engineers and architects are probably just waiting for less economic uncertainty before leaving the project. They are likely being paid a lot to work on a project that will take decades to complete. That gives them a lot of time before they need to bounce out to avoid the career hit when it comes crashing down. That's not even considering the graft and corruption opportunities. Lots of workers are going to retire on this project, and with project delays, entire careers might be spent working on it. I'm sure some of their workers will just want to be a part of something new, but most probably just want a steady paycheck. In a large project like this, it's easy to pass the blame down the line when something fails.
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  24. As a trucker, I am 100% behind Edison Motors.
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  25. As a former solar installer, I'd like to edit something: a solar electric system may or may not be upgradeable as easily as you say. You can't necessarily just add panels in the future, as that depends on how they're configured and the size of the inverter. Not much of an issue with micro-inverters, and not always an issue with central inverters, but it isn't correct to say that these systems are all modular and upgradeable. And WOW have prices dropped like crazy since I was putting them in! When I was installing solar (around 2006-2009), a standard 165 watt panel ran about $1500! There was a shortage of silicon at the time, and I'm glad panels are so cheap now.
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  26. Living in Europe, I've seen some roundabouts getting traffic lights added to them. It's like a mix of the old roundabout way but with lights at the entrances to help manage the flow and keep things safe. From what I understand, adding lights makes it easier for drivers to know when to go, especially when it's busy or the layout's complicated. It helps avoid jams and keeps cars, bikes, and people on foot from getting into it with each other because everyone's on the same signal. I've read that roundabouts are already safer since they cut down on really bad crashes. Instead of those direct hit crashes at intersections, you get more of those glancing blows if anything. The whole slowing down and easing into traffic thing they have going on helps a lot with that. Mixing traffic lights into roundabouts seems like a smart move for places that are really busy or have tricky roads. It's like getting the best of both worlds, making driving smoother and less of a guessing game.
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  27. Finally someone not afraid to talk to kids about the evils of the refrigeration cycle!!!
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  28. Thanks for the "nuts and bolts" of modern balloon capabilities. Also thanks for the reasoned speculation about the capabilities and mission of the Chinese balloon. Your video is sooo much more informative than common news outlets!
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  29. You are an amazing reporter! I just subscribed to your channel. I'm so disturbed by the lack of news coverage. And your clear, accurate and personal knowledge is much appreciated. I look forward to being better informed.👌
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  30. We recently learned that Light, evaporates water 4 times faster than Heat... at the same energy level.
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  31. I bought 65 used panels for my diy install. Several panels had low output like yours but a few new bypass diodes fixed the issue. Paid 55.00 each for the panels 40 each for used enphase micros and made my own racking. I make about 80 to 100 kWh a day enough for the house and 2 Chevy electric cars here in Orlando.☺
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  32. There were 4 engineers riding in a car across the desert, an electrical engineer, a mechanical engineer, a chemical engineer and a software engineer. The car suddenly died and they drifted to the side of the road. The electrical engineer said, "we must have lost spark". The mechanical engineer said, "we must have thrown a rod". The chemical engineer said, "we must have bad gas". Then after a moment of silence the three looked at the software engineer who said, "maybe if we all get out of the car and get back in again it will start".
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  33. Definitely not 'pie in the sky', even if it never comes into production. It's still necessary research and demonstrates a potential, even if it's never realized. And, of course, it might be game-changing...you never know.
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  34. This was a very detailed discussion but shared with layman's expressions so that it is understandable to the common population. Thank you.
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  35. 60 ct/ lb or 27 ct/ kg, isnt 1 kg more than 1 lb?
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  36. I've heard of one wind farm in the UK that uses excess electricity to electrolyse water to make hydrogen that it feeds into the national gas grid. The volume is small enough that no-one burning gas needs to modify their burners, but that excess electricity does reduce the amount of natural gas burned.
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  37. For anyone that can see this comment, a "controlled release" meant getting the crap off the tracks quicker and one-step closer to running trains again, upvoted!!!
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  38. On other possible storage strategy is vehicle-to-grid, i.e. using an electric car's traction battery as a storage space, then tapping it at peak times. Rather than a Powerwall, you could store energy in the EV at cheap times and release it during peak times. As EVs proliferate, and get larger battery packs, this could kill two birds with one stone - clean up the transportation sector, while evening out demand on utility-scale power generation.
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  39. i think this will be the first ford pickup that will actually get me to buy my first F-150
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  40. RICKY, for agrovoltaics, you didn’t include that the panels can concentrate rain and dew to the CROP instead of all over the place. Alternatively, rainwater could be captured with gutters, stored and then precisely distributed to the crop as needed via pipes MOUNTED to the posts that support the panels.
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  41. I'm still in for the Elio. It's a great idea for urban commutes and provides the best of both worlds as far as motorcycles and cars go; we get great gas mileage, ease of parking along with shelter from weather and a stable platform for more folks to feel comfortable in.
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  42. I wish you another 10 happy peaceful years to come! Regards from Athens Greece...thank you...
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  43. You've done a really good job walking us through the engineering and business tradeoffs, which is a breath of fresh air not just on YouTube, but in technology reporting generally. Thank you for this work!
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  44. Bro I can't tell you how valuable these videos are, and I love the informal, but well-researched way you present them. And no ego. No presumptions. AND we get to come along on the journey with you, and see the little mistakes. So cool, thank you for these.
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  45. I remember learning about desalination for survival purposes when I was very young. From that point on I’ve never understood why we’re not all pouring money into desalination.
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  46. We got a mini-split a couple of years ago and really like it and our bills! And now I know how it works, thanks Ricky!
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  47. It’s very reassuring that battery technology is accelerating in many different directions
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  48. Wow, if these plants can survive in mines despite the challenges, and are actually able to hold 25% of their weight in the metal, this could do so much good. It can clean up poisonous earth, which in turn cleans up more of our water sources, food, etc. Everything’s connected. They could used these plants to recover farms with poor soil quality. Recover metals and make some fertilizer. Also, the potential this could have for Mars-based farming doesn’t elude me. We could grow iron on Mars!
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  49. This show reminded me of when I was in the navy going to Class A damage control school on Treasure Island in San Francisco Bay. One weekend I was walking down the street where the cable cars ran and found the power house for the cable cars. Walked into the building and the engineer who was running it gave me a tour. It had a huge flywheel that powered the cable and it was very quiet. I understand that they shut the cable cars down later but then brought them back at a later time. If you are ever in San Francisco and have a change, do that tour.
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  50. Tidal energy is really just gravity :) Great video. Especially the point about the battery costs for intermittent energy sources. Would be interesting to add the storage costs to wind and solar and then compare to the tidal energy. I did not even know about the plant in France. When my kids will be older, I have to make a trip there. Thanks for sharing this!
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