Let's string wires on poles down every street in the nation and use them to put a device in every home that allows anyone in the world to ring a loud bell at any hour, day or night.
pathetic. the real money is if we blanket the planet in radio from high towers and poles, create thousands of types of mostly-incompatible portable wallet-sized devices that provide this ring-a-loud-bell functionality, make them requisite for daily life so everyone must purchase one to the tune of hundreds of dollars per year and keep it on their person, and then create an automated system that randomly rings every device multiple times per day trying to steal money. oh also they spy on everyone constantly and deliver incredibly volatile cognitohazards if you so much as look at them.
and we'll move on from this when we develop cheap brain implants that are even worse
Still sounds partly crazy to me (German). All those lines on poles in the US, I think the only lines here that are above ground are these super high voltage long distance power lines, anything else is underground (and safe from weather etc.)
Geology is one reason. Many major urban areas in the western US have a layer of caliche under the surface. Digging through 1m+ of natural concrete makes underground lines even more hideously expensive than they would otherwise be.
What do you mean not necessarily. Hyperloop sounds like a complete and utter fantasy. Closely followed by tunnels in LA where cars drive themselves actually.
Yes, who would get into a vehicle when the outside air pressure is below 5 PSI. I mean if the seals broke you could die, and for what to save on fuel costs. What’s next flying through the air in a flying brick instead of the naturally buoyant dirigible, just imagine what happens if the engine cuts out… It’s madness, madness I say!
to save on fuel cost but spend a lot of money running pumps to keep a tube near vacuum ? these people are insane... just like building a tunnel to drive a car back and forth and pretend like its some new innovation, if only they knew of trains and trains that move underground in tunnels.
Commercial jet aircraft fly at 30,000 feet ~4psi to save on fuel which also translates to higher speeds, which was the joke. Hyperloop was supposed to be lower at ~0.1 psi mostly to allow for higher speeds.
As to the effort to maintain a low vacuum, that has relatively minimal associated energy costs assuming the track is reasonably air tight.
do you know how hard it is so keep vacuum? let alone massive tubes ? imagine just the temperature differences on day to night cycle and the overall length
just look at the energy cost and how much a pump can do in a reasonable time period vs the volume of a large distance tube.