Comments by "Alan hat" (@alanhat5252) on "Engineering with Rosie" channel.

 @phyarth8082 the sun seems to work, that works by nuclear fusion
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@PinataOblongata the rockets SpaceX are using are literally thousands of years of iterations of Chinese rockets, SpaceX's innovation is autonomous landing, even re-usable rockets is ancient tech (before SpaceX they crashed & were repaired).
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@PinataOblongata we already have the materials for space elevators on the moon or Mars, it's the Earth's extra gravity that's proving challenging -- the current contenders are Buckytubes, graphene & monocristalline diamond, all of which are made now but not in 62,000Km lengths with a thickened centre.
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@PinataOblongata original concept/design -- let's go with an example you can see & visualize yourself, a new lampshade, one you haven't seen in a shop. You've got that in your mind's vision? It's complete? How does it deal with heat from the bulb? Does this shade attach to the bulb itself, the holder, the flex or a post? Now how are you going to make all of its separate components & assemble them? I hope you can see that your 'scalability' requirement comes a very long way through the iterations of design even if it's high on your priorities from the outset. The most you can ask is that un-scaleable designs get redesigned or abandoned quickly.
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@PinataOblongata no I haven't watched Foundation, I did enjoy in my youth Asimov's trilogy though. (Apparently there are now 7 books). Safety, crash tolerance & sabotage are yet more design iterations a long way after the initial concept though they are under consideration at the moment by the teams working on the designs.
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it's a big planet...
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10:57 is domestic generation a significant player yet?
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This is top-quality journalism, we need these principles to spread around the world, voters cannot make informed choices without it.
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not stated clearly in the video but it sounds like it's something to do with the way the wind moves around the blades.
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"B1M" channel on Youtube (the largest construction engineering channel) has been looking at engineered timber buildings for a while
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fashion
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Portland Cement has been on the market less than 200 years (1840s) but cement & concrete have been in use since before the Roman era. Which type of cement is popular at any one time is purely fashion.
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@WeatherGuardLightningTech This is engineering, it's not necessary to know every last precise detail to solve the problem, just pick up on a couple of facets & work from there. We know an electrical field builds up before a strike, I understand that when graphed it has a predictable pattern & is detectable with an electroscope (yes I know, Victorian-era tech, but it's reliable & everyone's seen one at school). This could be a trigger for a leading-edge slat or just an air or water blast to pop out & disrupt the airflow into massive vortices deflecting the formation of a plasma. If left fully analogue & at least mostly mechanical it should be fast enough to be useful, self-retracting & tough enough to withstand strikes that still get through. Consideration might be given to the idea that a superheated plasma discharge inches from the blade might stress the blade.
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what's V2L?
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found it - Vehicle to Load
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@EngineeringwithRosie apparently Pylontech rackmount (blade) batteries integrate very nicely with home automation giving you enormous scope for matching supply/demand with your lifestyle (& the charts are very pretty 😊). You'll have to decide whether that beats your new wheeled battery.
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They do reach market, Portland Cement itself was patented in 1824 & current variants weren't available till the 1840s yet the Romans used a very similar & plainly long-lasting cement centuries before. What we're waiting for is fashion to change & that could easily be encouraged by for instance taxation.
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China uses a lower-carbon cement.
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@EngineeringwithRosie B1M & others are watching the market for wooden buildings grow using "engineered timber" & low-rise adobe is still viable (the cities in Yemen are marvels) & can be 3d-printed.
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@WeatherGuardLightningTech are you a politician? Vaguely hinting at blaming someone else while not answering the question.
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