World News

38921 readers

2297 users here now

A community for discussing events around the World

Rules:

Rule 1: posts have the following requirements:
- Post news articles only
- Video links are NOT articles and will be removed.
- Title must match the article headline
- Not United States Internal News
- Recent (Past 30 Days)
- Screenshots/links to other social media sites (Twitter/X/Facebook/Youtube/reddit, etc.) are explicitly forbidden, as are link shorteners.
Rule 2: Do not copy the entire article into your post. The key points in 1-2 paragraphs is allowed (even encouraged!), but large segments of articles posted in the body will result in the post being removed. If you have to stop and think "Is this fair use?", it probably isn't. Archive links, especially the ones created on link submission, are absolutely allowed but those that avoid paywalls are not.
Rule 3: Opinions articles, or Articles based on misinformation/propaganda may be removed. Sources that have a Low or Very Low factual reporting rating or MBFC Credibility Rating may be removed.
Rule 4: Posts or comments that are homophobic, transphobic, racist, sexist, anti-religious, or ableist will be removed. “Ironic” prejudice is just prejudiced.
Posts and comments must abide by the lemmy.world terms of service UPDATED AS OF 10/19
Rule 5: Keep it civil. It's OK to say the subject of an article is behaving like a (pejorative, pejorative). It's NOT OK to say another USER is (pejorative). Strong language is fine, just not directed at other members. Engage in good-faith and with respect! This includes accusing another user of being a bot or paid actor. Trolling is uncivil and is grounds for removal and/or a community ban.

Similarly, if you see posts along these lines, do not engage. Report them, block them, and live a happier life than they do. We see too many slapfights that boil down to "Mom! He's bugging me!" and "I'm not touching you!" Going forward, slapfights will result in removed comments and temp bans to cool off.

Rule 6: Memes, spam, other low effort posting, reposts, misinformation, advocating violence, off-topic, trolling, offensive, regarding the moderators or meta in content may be removed at any time.
Rule 7: We didn't USED to need a rule about how many posts one could make in a day, then someone posted NINETEEN articles in a single day. Not comments, FULL ARTICLES. If you're posting more than say, 10 or so, consider going outside and touching grass. We reserve the right to limit over-posting so a single user does not dominate the front page.

We ask that the users report any comment or post that violate the rules, to use critical thinking when reading, posting or commenting. Users that post off-topic spam, advocate violence, have multiple comments or posts removed, weaponize reports or violate the code of conduct will be banned.

All posts and comments will be reviewed on a case-by-case basis. This means that some content that violates the rules may be allowed, while other content that does not violate the rules may be removed. The moderators retain the right to remove any content and ban users.

Lemmy World Partners

News [email protected]

Politics [email protected]

World Politics [email protected]

Recommendations

How to spot Misinformation and Propaganda

For Firefox users, there is media bias / propaganda / fact check plugin.

https://addons.mozilla.org/en-US/firefox/addon/media-bias-fact-check/

Consider including the article’s mediabiasfactcheck.com/ link

founded 1 year ago

MODERATORS

[email protected]

365

Panama Canal reduces the maximum number of ships travelling the waterway to 31 per day (apnews.com)

submitted 1 year ago by [email protected] to c/[email protected]

58 comments fedilink hide all child comments

The Panama Canal announced Saturday it will reduce the maximum number of ships travelling the waterway to 31 per day, from 32 in August, due to a drought that has reduced the supply of fresh water needed to operate the locks.

That compares to daily averages of 36 to 38 ships per day under normal operation.

Nine ships per day will be allowed to use the new, bigger NeoPanamax locks and 22 per day will be handled through the older Panamax locks.

you are viewing a single comment's thread
view the rest of the comments

[–] captain_aggravated 1 points 1 year ago

I don't think maintenance is the prohibitive factor; I think it's energy.

I don't know if there's a c/theydidthemath on this instance, but...the locks ultimately lift ships about 25 meters or so up to the level of the canal, right? So if you were to pump the locks full of water from sea level, you would have to pump a volume of water equal to the lock's area, 25 meters deep, up to 25 meters up hill. I'm too lazy to look up the numbers and solve for watt-hours, but I'm imagining to operate all the locks in the canal that way you'd need a power station worthy of a captain planet villain.

Using fresh water from the inland waterway (including a freshwater lake) allows the locks to be filled by allowing water to run downhill with no additional power needed.

It is my understanding (and late night refusal to look it up) that the newer locks have water storage tanks off to the side so that water drained from a lock on a "downward" trip can be used to at least partially fill the lock below it on its next "upward" trip such that less total water is released with each cycle of the locks, but still none of it is pumped uphill.