this post was submitted on 19 Feb 2024
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solarpunk memes

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Look what they need to mimic a fraction of our power (slrpnk.net)
submitted 10 months ago by silence7@slrpnk.net to c/memes@slrpnk.net
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[–] Poggervania@kbin.social 93 points 10 months ago (5 children)

I wish we could somehow make a huge self-driving car that could link up to other cars. Maybe we could even have specialized roads for them where they can go on rails or something to help conserve the car’s battery and even recharge it.

[–] ChilledPeppers@lemmy.world 38 points 10 months ago (3 children)

yes, and we could add one more rail to make it not need a battery at all. I think that would be a nice addition, as batteries are expensive…

[–] thisfro@slrpnk.net 18 points 10 months ago (1 children)

Also make it like 300km/h fast

[–] lud@lemm.ee 14 points 10 months ago

Maybe we could even make suspend cables in the air to power them. Seems cheaper than one more rail.

[–] aeharding@lemmy.world 7 points 10 months ago

Better for the environment, too!

[–] cooltrainer_frank@lemmy.world 22 points 10 months ago (2 children)

I love re-deriving the train with people as a thought experiment

[–] Facebones@reddthat.com 9 points 10 months ago

I love when carbrains do it themselves 😂

[–] jaybone@lemmy.world 5 points 10 months ago

🎵 Deriving that train, high on cocaine

[–] Flumpkin@slrpnk.net 4 points 10 months ago* (last edited 10 months ago)

Yeah I often imagine something like a self driving podbike "robotaxi". It weights ~65kg and needs a tiny fraction of the energy to reach 50kmh (30mph) in a city. Or better a longer version with 2 seats facing each other (for two people or for shopping bags).

For longer travels you could even have "roll-on/roll-off" trains so you could get in from your home, roll on and then roll off while staying in a comfortable compartment.

I'd love to know how a "robotaxi train" would compare with public transport in terms of embodied and expended energy. My guess is that it's rather close and would be much more popular, and easier to maximize utilization, hence more easy to make real.

[–] uis@lemm.ee 1 points 10 months ago

https://youtu.be/GcKUYbChE3A?t=671

He calls them gigataxies and terataxies

[–] XTornado@lemmy.ml -1 points 10 months ago

I mean... I know that your are implying using trains... But trains don't work on all situations, and something like you say that is a middle ground but that doesn't depend on rails which is basically the limitating factor in some cases due the height differences or other related issues wouldn't be that bad.