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

  1. You know you're old when you remember the Ozone layer
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  2. “When the winds of change blow, some people build walls and others build windmills.” ~Don Quixote
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  3. Great work Ricky! Ford chose a great person to cover the F150 Lightning
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  4. love your channel dude but this seems like "we cant cause we cant" situation so what's next? can self driving solve congestion?
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  5. This is the type of informative well put-together content that has me not just like, but also share. Keep it up with more content like this!
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  6. I'm a software developer... you hit the nail on the head. Legacy automakers are effed and they may not even know it. It will take conscious effort on their part not to die.
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  7. I love the Variety of engineering topics that you bring to our attention and the depth and clarity you present them with.
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  8. Good production, but I have a few little quibbles. You mentioned batteries losing energy while they sit idle, but lithium-ion cells don't really self-discharge the way other rechargeable chemistries do. At the same time, hydrogen is notorious for gradually leaking out of any storage container. Furthermore, all electric cars, whether BEV or HFCV, will have some small amount of "vampire energy drain" through their electronics when sitting idle, just like a computer in sleep mode. When you talk about the huge energy density of hydrogen, it's very misleading, because the physical density is so low, volume rather than weight becomes a limiting factor. Compressing the hydrogen to high pressure helps with the volume problem, but then you need a much stronger, and heavier, tank to store it. Then the energy density of your complete storage system plummets. Rather than individual li-ion cells versus hydrogen gas, you need to compare the filled hydrogen tank against the complete battery pack. And then it seems fair to acknowledge that those bulky hydrogen tanks present a real packaging problem for car designers, too. By comparison, BEV designers are almost all going to a "skateboard" design with batteries in the floor, which seems to be pretty versatile and efficient.
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  9. Good advice from an engineer. Next step, get a bigger battery and feed the grid at the high price time
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  10. I think his ego got the better of him and people died because of it.
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  11. Ya man, The future is here. I'm 62 and never in a thousand years did I think I would see what I am seeing today. Bring it on ! Love the show this week'
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  12. Funny story, the Model S apparently broke the machine that tests roof strength. In other words, the Tesla Model S has a stronger roof than the machine designed to crush roofs.
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  13. I like the storage method that doesn't require high pressure or really cold temperatures. The round trip efficiency going from electricity to green hydrogen and back is less than 40%, slightly better than today's gas engines, and on par with light diesel, Batteries are better than 90%.
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  14. As someone born in the USA and never being able to travel abroad until just a few years ago, pictures never do the European cathedrals justice. I am not a religious person but I can understand why someone would be after visiting a few for myself. They are truly awe inspiring. Adding the Sagrada Familia to my bucket list. Thanks!
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  15. Title: "This Heating Tech Breaks the Laws of Pysics" Content: "Why heat pumps don't break the laws of physics" content good. title bad
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  16. One of the biggest attractions not mentioned much is the Cybertruck's rust-proof stainless construction. Rust kills more cars here in the NE U.S. than just about anything else. Another point, total cost of ownership will actually be lower than any of the ICE vehicles compared in your vid over time due to the lower fuel and maintenance costs, and the Tesla will still be worth something many years from now when you won't be able to give away those obsolete ICE vehicles. Autonomous potential was the last selling point that should be considered, and Tesla is light-years ahead of the competition here. The dual motor CT was my choice to reserve.
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  17. i love the way you state all the facts and clearly separate your own theory. really interesting and informative video
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  18. Okay look, if I pay $400 million for one of these am I irresponsible if the first thing I do isn't installing and running doom on it?
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  19. This is fantastic. Retrofitting of old homes will be huge! One suggestion regarding the yard. Do you need the lawn? Lawns are huge resource hogs and can be converted to beneficial spaces for birds, bees, food production. Thanks for this series. I’m excited about seeing what you come up with. 👍🏻😃
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  20. Fun episode, flywheel are an interesting piece of historic tech being brought back to life.
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  21. "Vehicle-to Home" is different than "Vehicle-to-Grid" and Ford only promised the V2H variant. It may be that the Lightning will be capable of V2G, but it wasn't said during the presentation and I can't find it anywhere on the spec sheet. It may seem like a small difference, but it's really kind of big difference.
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  22. Might want to add "seven seater" and "3rd row" to your title, it's absolutely astounding that this video hasn't exploded. Great stuff, and so gosh darned wholesome!
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  23. Very good documented video, it must be noted that Japanese producers are incentivized to invest in hydrogen because of their new HTGR reactors which can produce hydrogen. However, it is unlikely they will export this around the world as they don't have China's financial muscle.
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  24. Another outstanding show, Ricky! Thank you! Vietnam has worked extremely hard to rebuild their country since we were over there bombing them, and I welcome this new company adding even more superior options to the exploding EV market.
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  25. This is a topic worthy of more in depth coverage.
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  26. Thank you for joining us at Lucid AMP-1, we were glad to have you.
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  27. They just showed the heat pump in the Model Y, so let's think what's possible,  they got a modern electric driven encapsulated high voltage HVAC compressor in the Model Y with a decent size. That single one is probably big enough for a small flat, and if you need more power, add another one and another one... now you can adjust the needed output much better, you divide the load over multiple compressors so they wear evenly, you got redundancy if one of the compressors fail, the other ones are still working.
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  28. I can't get past he had All this money yet he didn't invest in making the strongest most durable submersible haul humanly possible. Using spun carbon fiber in between titanium caps is THE DUMBEST THING. Especially when you deal with intense compression repeatedly!!
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  29. As someone who lives by the Arctic I look forward to seeing your take on the geopolitical aspect of my home turf. Here in Iceland the largest embassy is the Chinese one despite only a handful of Chinese citizens living here. Thanks for an interesting video as always. Feel free to contact me if you need any resources or fact checking.
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  30. One thing is for sure, companies will either develop electric cars or die. I believe in Tesla, but also looking forward to see what other companies can come up with in the next 5 years (and can only imagine where Tesla will be in 5 years from now!).
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  31. It levels out not only hills but age. I don't live where there are hills, but I'm less than a year away from 80 and zip around the neighborhood like a teenager on my Radcity.
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  32. Living in Thailand we painted the walls bright white and used a bright white steel roof. Our aircon units powered by solar are only 8,500 BTU
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  33. Renogy flexible panels are covered in dots that are supposed to allow light to gather from multiple angles. It's not concentrated of course, but it's something. When purchasing solar panels, efficiency took a backseat to lifespan for me. A 22% panel that loses 20% of its power over 25 years is way less efficient long term than a cheaper 20% panel that only loses 10% of its power over 25 years.
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  34. Great video. I'd add that the idea is not new, but many advances in recent years, both in materials, and production technologies are making these ideas more feasible and applicable in real life.
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  35. im a truck lover and a tesla lover so i will definitely buy it if i'm able to afford it
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  36. Simply astounding on so many levels. And he's said that when their revenue becomes steady they will IPO and he plans to make sure retail investors can get in on it.
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  37. my dad worked at the Ford truck manufacturing plant in Milpitas,CA that closed in 83' sadly he passed away in February 05' he was a retired UAW worker i wished he could see this truck i think he would've loved it.i think it is bad ass.
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  38. I wish we lived in a world where we didn't need to compete in such a cut-throat zero-sum way.
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  39. Since you pulled all the dry-wall off, you might as well wire the room for ethernet too (use cat-5e or cat-6 cable)... 1 gigabit is usually enough and the distribution infrastructure for 1 gigabit is very low power compared to e.g. Gbe2.5. Wifi works, but hard ethernet just has a snappiness to it that wifi doesn't have. So for any fixed PCs (etc), having a hard ethernet port is just the bees knees! Romex: either 12-2 or 14-2 usually (2 means two conductors. The copper ground wire is also in there but not included in the count). 12 gauge or 14 gauge. 12-2 for a 20A breaker (16A continuous), 14-2 for a 15A breaker (11A continuous). For a room that small the extra cost of the 12-2 should not be that big a deal. It is probably unnecessary, but it won't hurt ya either. I'd still recommend using 15A sockets (the sockets without the 20A notch in them) for all except the particular plug you might use for a microwave or toaster oven. Even then, microwaves and toaster ovens don't usually go above 11A anyway (unless its a commercial unit). Sockets are trivial to replace if needed. Wiring isn't. So deciding to use Romex 12-2 is perfectly reasonable. -Matt
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  40. The tech in 10,000 years may be a bit more advanced than what you can conceive of at this time. ✌️😎
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  41. You have a good balance of details and generalization. As a retired engineer, I would enjoy a bit more technical depth, but I understand the need to keep the viewership large enough to make your channel viable.
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  42. Damn, I love this show. Thanks, Ricky. Unfortunately, this company seems more hype than reality to me. Overuse of technical terms like 'aqueous effluent' instead of the simpler 'dissolved in water' is are massive red flags to my ears. Maybe not, but the numbers were very generalized, and instead of talking about the overall efficiency, the conversation focused on the conversion of each stage. In addition, the amount of general waste was never discussed.
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  43. Really good analysis. For the record though, Jetliners have NEVER used leaded gasoline; the change to unleaded gasoline that the FAA approved was for piston engine powered light airplanes. Jetliners burn jet fuel (Jet A, A1 or B), otherwise known as kerosene.
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  44. Can’t wait for this to get out of beta
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  45. Thank you for covering this, it's so sad to see why it isn't being covered because of the overlap of shareholders! Also thank you for pointing out the lack of rail R&D in this country, people praise Warren Buffet for being such a wise investor but what he really has done is keep our country in the 19th century because of his lack of reinvestment into the the companies he owns! ugh I could go on forever about this. Thanks again.
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  46. This project is truly intriguing! I hope that it can come to fruition as envisioned. I love this idea. Cheers to the Danes!
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  47. We put up a solar fence in our subdivision near Nashville. We love it and it isn't 'optimum' but does well. Our solar installer would not touch it, but we installed it physically and they did the electrical. We are happy with us. Ours has cost about $6.50/kwh with 3 Powerwall batteries before any tax implications. It covers our needs about 8 months of the year and we are still on grid. Our grid power is about $.11/kwh currently plus fixed fees. Even in the winter is helps reduce what was our power bills.
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  48. Just as an FYI: gamma rays are not charged particles, they’re photons. Cosmic rays are charged particles :-)
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  49. I never would have imagined “pimp my ride”, Keith Richards and fly wheel energy all in the same video. Bravo.
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  50. Now there is someone thinking. Get rid of ugly panels and integrate. Any time you can integrate a valuable component into a system and make that system better, overall, you win. This is awesome. This is ingenuity at work. I would love to use this on a build. Great video.
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