True but efficiency is not the same and not as simple to compare since we don't know how much of the ship's battery is converted into motion. Similarly we don't directly know it's mass. ICE cars can use ~20% of the energy in fuel while EVs 90%+ of the energy in a battery. But now much can that ship effectively use? I have no idea how efficient boats are or aren't, hence the roundabout method above.
COASTER1921
joined 2 years ago
It's still not a lot of energy though. Some rough napkin math for how far this would get you is below:
Typical medium size cargo ships in the Panama Canal travel around 25 knots burning 63000 gallons per day of fuel with 5000TEU of cargo. That's roughly 600mi/63000gal or 1142miles per ton gallon. That Silverado EV somehow weighs 4 tons (totally safe to be driving at highway speeds), so this is the equivalent of roughly 285.5mpg per Silverado. The Silverado is 67mpge on its own, so the ship is just over 4x as efficient (and slower which is ignored here but would impact the vehicle efficiency).
So using the Silverado's 450 mile optimal range we can say it has at most an optimistic 7 gallons equivalent fuel in its 200kWh battery. 50 MWH would be enough for a theoretical 1750 gallons equivalent if efficiency were the same. But for the efficiency difference this corresponds to a 4.2x improvement to 7350 gallons equivalent. Therefore this is enough to run that typical ship above for 2.8 hours. So with 65000 tons of cargo in the above ship to do a 200 mile route this ship would need roughly 3x as large a battery. More likely it will just carry ~1/3 the cargo or have charging stops en-route.
The 19.4km/h top speed of this ship suggests they're well aware of the extremely limited range this will have for its size and it sounds like the Shanghai to Nanjing route will be pushing it's limits despite being less than 200 miles.
Yep, and the Chevy Silverado EV manages 200kWh now. This cargo ship better be small and efficient because 250 American pickup trucks worth of battery really isn't much.
Posy has many videos along the lines of technology connections with incredible macro footage as well as lots of other random interesting stuff.
mitxela for well documented high quality projects blending mechanical and electrical engineering.
The Tim Traveller is basically Tom Scott if only covering strange historical things. And unlike Tom Scott he's still making videos.
Cathode Ray Dude does a mix of long form content like technology connections, but focusing on relatively modern computers.
When they charge many $100s for an extra 8gb the value of the bare minimum 8gb doesn't look so terrible (if only comparing to Apple). Especially considering the performance of swap on a fast SSD.
Notably this post gets it wrong too, missing the S. It's "the quick brown fox jumps over the lazy dog".
Part of the difference is that the Apple silicon Macs aggressively use SSD swap to make up for limited memory. But that's at expense of the SSD lifespan, which of course isn't replaceable.
I'd never recommend a Mac, but the prices they charge to get a little more RAM or SSD over base are crazy. The only configurations offering any "value" are the base models with 8gb RAM.
This is just going to lead to people using outdated Windows 10 for various reasons. I don't use Windows much but have it installed. The trackpad gesture customization is basically gone in Windows 11 but was at least serviceable in Windows 10 (to change virtual desktops and volume easily).
The difference between top 10% and top 1% is shocking. And if they included 0.1% it would probably make all the other bars too small to see the difference at all.
I love when phones place the usb on the top. I have no idea why the bottom is standard, nobody uses docks anymore.
Employer sponsored 401k plans usually don't give that much choice in how you allocate the money.
That being said our whole economy is tied to the stock market, in my opinion to the point it's "too big to fail" (at least catastrophically). Betting against it on the order of decades would be a very bad idea as our whole economy relies on inflation of the dollar.
This has been the case forever. Itemizing receipts for hotels is always a pain and at least my company's expense tool has buttons for more than 7 different tax fields each night. It's like filling out a whole spreadsheet it the nightly rate varies.