So many would say “Pluto” and I would cry.
Back in my day the only planets we knew of were the ones in our solar system.
That’s still very much the case. All planets are, by definition, in our solar system. Any planet-like bodies not in our solar system are called exo-planets.
You make it sound like exoplanets are not planets, but they are, unless you have a recent source that contradicts my education.
Did you hear about Pluto? That’s messed up, right?
the human named Jerry has something to announce…!
Thumbs nose
You know that’s right.
Not really, no… it’s a comet or at best a rogue kuiper belt object. It’s smaller than earth’s moon, its orbit is wildly elliptical, and it hasnt cleared out its orbital path. Many reasons not to consider it a planet, and so it was dropped.
If Pluto was to be called a planet, then Ceres would also need to be called one, and everyone seems happy with calling that an asteroid.
And there were nine of them!
people who dropped out: “I know all”
Just read the wikipedia list of common misconceptions
list of common misconceptions
The Middle Ages were not “a time of ignorance, barbarism and superstition”; the Church did not place religious authority over personal experience and rational activity;
Like hell it didn’t.
and the term “Dark Ages” is rejected by modern historians
Because it’s a prejudicial term, not because the past isn’t fucking shitty.
Citation needed
Because it’s a prejudicial term, not because the past isn’t fucking shitty.
If that were true then what do you call the classical age? The darker ages?
We generally say ‘Antiquity’ and ‘Late Antiquity’ anymore.
Ooh present-tense anymore! Really don’t see that very often, but it’s got a nice ring to it
Can you explain please ? I don’t understand their sentence as it is. What’s surprising to me isn’t the present tense, it’s the fact that it isn’t negative.
It sounds odd to me too, but I found a wiki article on it: https://en.m.wikipedia.org/wiki/Positive_anymore
Okay but should I put in the year I graduated or the year of our textbooks/curriculum? Because my U.S. history textbook had an assignment for the “present day” to write about the “ongoing” war in iraq under “current” president George W. Bush. Spoiler, I did not go to HS when bush was president.
I was in high school during that time
It’s really weird to see actually witness history becoming “history”
I went to a Christian private school.That list would take down the website for days!
Only if an incompetent made the site. User input is a drop in the bucket compared to aggregation, searching, and now “AI”.
Quickly need to query half a billion results…
Oh hey, I have one for you! I was taught that the Christian flag was the oldest flag in the history of the world.
deleted by creator
Hold my fuckin beer friends i remember when tunguska was a ‘weird alien thing’ and when Ballard found Titanic
Actually, this is a really really amazing idea.
Set country as an option, and private/public school (different lies…)
It’d be great to let us all face our biases _
different lies
A Japanese person asks, “What did my school get wrong about Japan’s involvement in World War II?”
is given an exhaustive history of the World War II Pacific Theater
Hard to call it a bias when that was the accepted convention for a large portion of the population.
Can’t really blame someone for being taught something than never having it come up again.
Yeah like the food pyramid. That’s not my bias, that was the government fucking up
That was big business fucking with the government on purpose.
Yup. Sucks ass how many of us they conned
Biases? Ignorances, is that the word you meant?
A little of column A and a little of column B.
There are 9 planets…
I’m torn on this one, cause recently they’ve been finding evidence of a ‘new’ 9th planet, way beyond Pluto’s orbit. So I’m on the fence of “there are 8 planets” and “there are 9 planets.” 🤔
I’m of the believe that we made up the word planet and it can mean whatever we say it means.
I’m of the opinion we made up all the words, but those mouth sounds must have a strict meaning whenever possible. Words are important, they’re how you communicate concepts. Everyone should be precise with their words to the best of their understanding, if you have to redefine the word planet in every conversation the concept is diluted and you waste a lot of time
In this case, if Pluto is a planet, we have at least 13. We might discover another 10 or 20 if there’s no planet 9 hiding behind the kyper belt and it’s all dwarf planets… Ain’t no one got time to remember 30+ planets
30+ planets should be pretty easy. They name them after mythology. The 50 states aren’t difficult to remember, and those don’t have any sort of naming convention.
That’s pretty much how it is. In ancient times, planets would have been objects that were distinguishable from stars in ways they had the ability to differentiate from. For example, with a telescope, any object that doesn’t shine like a star, that moves across the sky at a different rate than the stars, or maybe has visible rings.
Then once science found things that past science couldn’t account for, they redefined what a planet was, according to its size/gravitational pull or other factors, and which Pluto didn’t fit. Apparently due to Pluto’s small size, it’s not even a dwarf-planet, and by that measure is basically just a really big asteroid (we even know of asteroids that are bigger than Pluto).
The issue is, as I understand it, we either have 8 planets (or 9, if there is an exoplanet), or a whole bunch of planets, depending on how narrowly we define them.
It’s also the fact that Pluto doesn’t have its own orbital slot. It is clearly something that escaped Uranus at some point, that’s why their orbits intersect. A planet doesn’t just have to have a certain size, it also has to have its own distinct orbital path.
Yeah this is the correct take. Either Pluto (and by extension, any object of similar size) is a planet, which would mean there’s thousands of Pluto-sized planets in the solar system; or pluto is ‘too small’ to be a planet. Which is the answer they (Sci community) settled on, because if every comet/asteroid is within the threshold definition of ‘planet’ then there would be no point in distinguishing planets at all.
Kinda like how we have dwarf-stars and supermassive stars 1000x bigger than our sun. If they were all the same size there would be no point defining them beyond ‘star’.
Pluto being too small isn’t actually the grounds on which it got demoted. The size requirement is just being massive enough to reach hydrostatic equilibrium - that is, be heavy enough that it’s round. Pluto does meet this one
The one it fails is clearing its orbit. This basically means being much heavier than everything else in the same orbit. Be gravitationally in charge of your orbit. The other eight are all hundreds if not thousands of times heavier than everything else in their orbit (not including moons, since they’re gravitationally bound to the planet anyway), whereas Pluto is less than a tenth of the total mass in its own orbit. Ceres is actually more gravitationally dominant over its orbit than that, although still nowhere near the eight planets.
This one sounds a bit weird at first, but I kinda like how it has such a massive delineation between the things we instinctively think of as planets and everything else.
Recently? I’ve been hearing about a possible large trans-Pluto object since before Pluto lost its status as a planet.
I must not be on the more scientific news places then, I didn’t start hearing about it until around last year–maybe the year before–, well after pluto got thrown out like last night’s trash.
There’s been “planet X” theories since the 50s
Happy cake day!
What about Uranus
Edit: or is that a moon 🤣 I crack myself up!
I’m sorry, Fry, but astronomers renamed Uranus in 2620 to end that stupid joke once and for all.
Oh…what’s it called now?
Urectum.
Lmao I love Futurama
There are at least 9
Pluto is a dwarf planet. Planet. You wouldn’t say that a dwarf person isn’t a person.
You wouldn’t call a person a dwarf, period. So don’t do that. If you ever meet a little person, they’ll probably refer to themselves as a little person. You should just follow their lead
A dwarf planet is not a category of planets. It is a category of sub-planetary objects. This is how the term “dwarf planet” was adopted by the IAU in 2006. It did used to mean “type of planet”, but there are just too many of them, and they’re really too different from planets, so it literally does not mean that anymore. At least to astronomers.
Whatever a red car is still a car.
It’s dumb to say it isn’t a planet just because it hasn’t yet cleared its orbit. The decision to make it “not a planet” was also made by astronomers, not by planetary scientists. Like people with “Star” in their name know more about planets than people with “planet” in theirs.
Anyways it’s extra silly because if you have “real planets” and “dwarf planets” then what is the higher group containing those two? “Things that orbit the sun”? No, they should both be planets.
Speak for yourself
We could call it thefactsbook
factsbook
oh I get it, my grandma goes on there so often, she must be trying to get true information
I started a subreddit called facefacts at one point, was gonna debunk Facebook bullshit with a JS bookmarklet, but got too busy with work, then Trump flooded the zone and deleted my Facebook and twitter accounts.
This assumes that your teachers were up to date
I’ve actually seen a website that is exactly this.
Can’t remember the URL, but can confirm it exists (existed?) and it was an interesting website to read.
Same, I want to say it was a NYT page? Or something like that. Not a dedicated site.
Could be, it’s been a while. Or maybe there’s been multiple sites.
Likely, yep!
RIP Pluto
damn what a shit website.
Some of these things are just like, shit we’ve known since the 60’s repackaged as “hey we’re pretty sure this isn’t that anymore”
Damn, impossible to read from a mobile phone
Cool concept, but the facts given are a very basic start.
Pretty sure a Redditor coded it in a morning in response to this tweet.
Whois lookup says this. Doesn’t discredit the “hastily thrown together in an hour” idea, though.
Created: 2023-10-02 02:12:17 UTC
I want to say 2-3, it was a quick job for sure ;-)
It says right at the bottom of the page that it was inspired by a tweet. With the same wording as this post.
Got em!
I think that already exists? I remember seeing it on Lemmy some months ago. I’ll try to find it.
