It’s made by some dude on instagram. He probably just didn’t find the proper data for some countries.

What is producing the electricity?

That question can be applied to all the electric forms of transportation of the chart though.

But if we assume it’s the about the same energy mix as for the tube or trams, then it isn’t that surprising. Volecity is major factor in the drag equation and ferries move very slow but have high capacity, so even with the additional drag, moving on cables should be closer to rail efficency than to a ship which has to use propellers.

It’s still odd that it’s below those other two, but I would have assumed they are in the same ballpark.

There is many small ferries in the UK which are basically a floating platform that get’s dragged through the water on a cable. If you run that off an electric motor those can be quite efficent.

Maybe they are thinking about those.

That’s a very odd selection.

What’s up with people misspelling “return” with a v?

Thw first picture is kind of informative. After that there is a severe lack of information.

I also fail to see how nesting in a shell or general burrowing are “adaptations to aqautic life”. Especially the last one is just a spider nesting a secluded space that happen to have some aquatic origin. The last 3 pictures are basicially just “waterproof silk”.

It works well enough for CPUs and graphics cards.