530
top 50 comments
sorted by: hot top controversial new old
[-] cholesterol@lemmy.world 366 points 4 months ago

The dump truck, at 45 tons, ascends the 13-percent grade and takes on 65 tons of ore. With more than double the weight going back down the hill, the beast's regenerative braking system recaptures more than enough energy to refill the charge the eDumper used going up.

[-] ladicius@lemmy.world 320 points 4 months ago

So the energy this truck uses is harnessed via mining and loading... Essentially this energy was stored in the ore via geological processes.

This truck uses continental drift as his fuel.

[-] Speculater@lemmy.world 87 points 4 months ago

In other words, OP's mom.

[-] Sparky 52 points 4 months ago

Or in physics terms, potential energy.

[-] brrt@sh.itjust.works 32 points 4 months ago

Since everything seems to be going downhill right now, how would I harness that power? You telling me the crystal peddling influencers were right all along? 🤣

[-] captain_aggravated@sh.itjust.works 23 points 4 months ago

I've seen a cable lift that worked basically like that. It transferred ore down the mountain, so heavy buckets going down lifted the empty buckets back up.

[-] vaionko@sopuli.xyz 9 points 4 months ago

Didn't Tom Scott make a video about this?

[-] captain_aggravated@sh.itjust.works 28 points 4 months ago

Statistically, yes.

load more comments (1 replies)
load more comments (2 replies)
[-] ieatpwns@lemmy.world 43 points 4 months ago

Is that just a gravity battery that just so happens to be a dump truck as well?

[-] whyNotSquirrel@sh.itjust.works 32 points 4 months ago

So it was designed for this mine I guess?

I'm not sure there's a lot of mine you're going down filled up, the images I have in mind are quite the opposite, but that's a really cool idea!

There actually is some design to stock energy this way, with weights you lift while having excess energy

[-] groet@feddit.org 36 points 4 months ago

Depends on the scale of "going down". Many mines are in the mountains and the material has to be brought down to lower elevations. The mine entry may be lower than the nearest pass but still a lot higher than the destination of the ore.

load more comments (3 replies)
[-] SomeoneSomewhere@lemmy.nz 21 points 4 months ago

If you're thinking of that CGI crane lifting concrete blocks, it's unfortunately a really bad idea.

Pumped hydro stores energy by lifting weight uphill, instead. Water is basically the cheapest thing you can get per tonne, and is easy to contain and move.

To store useful amounts of energy using gravity, you need pretty large elevation differences and millions of tonnes of mass to move.

load more comments (1 replies)
[-] nova_ad_vitum@lemmy.ca 13 points 4 months ago

Reminds me of this ropeway thing that Tom Scott covered that doesn't require power input either, for similar reasons:

https://youtu.be/6RiYXI1Tfu4

Niche application but still cool.

[-] Th3D3k0y@lemmy.world 7 points 4 months ago

ARGH Why did you have to remind me that Tom Scott is still missing from Youtube!

load more comments (3 replies)
[-] ChaoticNeutralCzech@feddit.org 138 points 4 months ago* (last edited 4 months ago)

Amateurs.

The 1963 Černý Důl – Kunčice nad Labem aerial ropeway is over 8 km (5 mi) long, over 30 m high in places and carries 135 tons of limestone every hour from a quarry to the nearest train station. Its 120kW 3-phase synchronous motor requires power for a few minutes at the start and end of each day when most of the 800kg-capacity trolleys are empty, and spends most of the shift generating mains electricity and acting as a speed governor. Unlike the EV, it is fully autonomous most of the way, only 5 people are required to operate it. (Loading, unloading and timed dispatching is automatic, arriving/leaving carts just need to be checked; a safety latch has to be manually dis/engaged on trolleys passing the check.) The quarry will continue operation as long as it pays off, then the ropeway will be scrapped (projected 2033). A dude illegally rode the way up on it somewhat recently. He could have fallen to his death if he pulled the latch.

[-] SomeoneSomewhere@lemmy.nz 13 points 4 months ago

I wouldn't be surprised if there are electrified railway lines doing the same. Regenerate large amounts of energy into the grid while descending loaded; consume a relatively small amount of energy to haul the empty train back uphill.

[-] residentmarchant@lemmy.world 8 points 4 months ago* (last edited 4 months ago)

Content aside, what a great video! It's not that old of a video but it reminds me so much of early YouTube, just friends messing around and posting it with top tier song choice.

load more comments (3 replies)
[-] Soleos@lemmy.world 68 points 4 months ago* (last edited 4 months ago)

EV never has to be recharged... Because it recharges on the way downhill.

"World's largest EV never has to be plugged in" is sufficiently click-baity without being so dumbly self contradicting

[-] locuester@lemmy.zip 24 points 4 months ago

More like “never has to stop working to charge”. It is novel that its charging mechanism operates as a function of doing its primary job.

[-] uis@lemm.ee 8 points 4 months ago

Not novel. I think there was a train somewhere in Africa, that transported some ore from mountain to port. On the way down with ore it charged and uphill it used charge.

load more comments (2 replies)
[-] NikkiDimes@lemmy.world 9 points 4 months ago

Reminds me of some guy with a OneWheel that was saying he'd never charged his board in like a thousand miles as his daily commuter.

He lives near the top of a mountain lift, so he takes it home and just runs on pure regen lol.

load more comments (1 replies)
[-] prole 7 points 4 months ago

I think it's still pretty cool. Turning potential energy to kenetic

[-] shasta@lemm.ee 7 points 4 months ago

Yeah I was gonna say I'm pretty sure this isn't a single use, disposable vehicle

[-] Walk_blesseD 48 points 4 months ago

"World's largest EV"

Blatantly untrue. Larger EVs have been in use for more than a century at this point in the form of EMU trains.

[-] Agent641@lemmy.world 42 points 4 months ago

The emus have trains now?!

[-] timduncant@lemmy.world 22 points 4 months ago

Take that Australia!

[-] Walk_blesseD 15 points 4 months ago

Yeah we're proper fucked tbh

[-] NoSpotOfGround@lemmy.world 10 points 4 months ago

We truly are lost...

[-] finitebanjo@lemmy.world 10 points 4 months ago

It was part of the treaty. That and the Great Dingo Barrier.

[-] Glitterbomb@lemmy.world 19 points 4 months ago

I'll pick up the pedantic torch. Trains are made of train cars, I'd argue each one is a separate car or vehicle even though they're strapped together.

I feel like The ISS ticks a lot of the boxes for a vehicle though, how big is that?

[-] Walk_blesseD 8 points 4 months ago* (last edited 4 months ago)

Sure, but quite often in EMUs the cars come in sets that can't operate disconnected from each other, so I'd argue that they still comprise a single vehicle.

~~I'd argue that the ISS, due to lacking means of propulsion (unless you count explosive decompression) is not a vehicle.~~

load more comments (2 replies)
load more comments (3 replies)
load more comments (1 replies)
[-] faltryka@lemmy.world 32 points 4 months ago

Wow what a great use case.

load more comments (7 replies)
[-] Dagwood222@lemm.ee 30 points 4 months ago

Click bait that actually makes me glad I clicked???

[-] lightnsfw@reddthat.com 29 points 4 months ago

You just toss it when the battery dies and get a new one.

load more comments (7 replies)
[-] sircac@lemmy.world 24 points 4 months ago

I cannot avoid to be pedantic on this, it is recharged during half the trip… it just does not require plug-like recharging

[-] Siegfried@lemmy.world 22 points 4 months ago

Till elon finds out that if he manages to cover the sun, he can charge us on sunscription

load more comments (2 replies)
[-] mEEGal@lemmy.world 18 points 4 months ago

well that was unexpected

I'm curious if the desgin team knew about it in advance

[-] Bloodyhog@lemmy.world 33 points 4 months ago

Are you asking if Swiss guys knew about mountains? )

load more comments (2 replies)
load more comments (1 replies)
[-] FlashMobOfOne@lemmy.world 12 points 4 months ago

"EDumper" is a great name for a dump truck.

load more comments (2 replies)
[-] A_Random_Idiot@lemmy.world 9 points 4 months ago

I read the story.

I saw the comments on the story

I laughed at the pedantic slapfights happening in the comments.

I came here to comment on the neat story and poke fun at the silliness, to find the same pedantic slapfights here.

Sigh.

[-] gedaliyah@lemmy.world 9 points 4 months ago

Very cool! It's a pretty specialized use case, but still awesome to see.

[-] ShadowRam@fedia.io 8 points 4 months ago

2017

At 50 tons and 700 kilowatt-hours, this truck is the biggest EV in the world Each round trip will generate 10kWh of spare electricity for the grid.

https://arstechnica.com/cars/2017/09/this-cement-quarry-dump-truck-will-be-the-worlds-biggest-electric-vehicle/

[-] Imgonnatrythis@sh.itjust.works 8 points 4 months ago

Cool EV bruh, but can the horn make a fart noise?

[-] ChaoticNeutralCzech@feddit.org 7 points 4 months ago

I hope OpenTTD devs consider adding gravity-based electric transportation of heavy loads as an option

[-] ContrarianTrail@lemm.ee 7 points 4 months ago

I'm no phycisist but I'd bet that the claim "it consumes no energy" is almost certainly false. I get what they mean but this isn't exactly a honest way to describe it.

[-] Ultraviolet@lemmy.world 12 points 4 months ago* (last edited 4 months ago)

Strictly speaking, the energy it consumes is the gravitational potential energy of the ore they're mining, which would be consumed anyway in the form of, well, gravity, acting on the ore on the way down. They're just using it productively instead of dissipating it as heat from the brakes. Using only energy that ordinarily would have been wasted is of course very neat, but it's not breaking any laws of physics.

load more comments (2 replies)
load more comments
view more: next ›
this post was submitted on 12 Nov 2024
530 points (100.0% liked)

Technology

68495 readers
3219 users here now

This is a most excellent place for technology news and articles.


Our Rules


  1. Follow the lemmy.world rules.
  2. Only tech related news or articles.
  3. Be excellent to each other!
  4. Mod approved content bots can post up to 10 articles per day.
  5. Threads asking for personal tech support may be deleted.
  6. Politics threads may be removed.
  7. No memes allowed as posts, OK to post as comments.
  8. Only approved bots from the list below, this includes using AI responses and summaries. To ask if your bot can be added please contact a mod.
  9. Check for duplicates before posting, duplicates may be removed
  10. Accounts 7 days and younger will have their posts automatically removed.

Approved Bots


founded 2 years ago
MODERATORS