- cross-posted to:
- lemmybewholesome@lemmy.world
- cross-posted to:
- lemmybewholesome@lemmy.world
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“No parenting class would have ever prepared me for having my kid ask me why we don’t need artificial oxygen storage.”
No, but a grade school science class would have…
I mean… I know perfectly well that plants produce oxygen, but it never would’ve occurred to me that that was waht a child asking about oxygen tanks wanted to know.
It wasn’t about wanting to know about photosynthesis, the original question was really about the oxygen tanks. Kids very often are looking for a simple answer. Even though the real answer is far more complex.
As a Dad who helped raise 4 Daughters, (a CPA, a Triage Nurse, PHD Mech Engineer, and a Computer Forensic Expert for the FBI), teaching at home is a crucial part of parenting. Beyond offering a wide variety of materials to learn from, (we built a library of books that filled my office), and being ready to answer those oxygen tank questions, you need to show and make asking those questions and learning from them fun.
Right? This seems like a…strange problem to have. “Why don’t we need gas masks when we go outside?” “Why don’t we need to worry about rivers of lava?”
…because those aren’t problems on this planet. Lava stays underground unless there is an active eruption and the air outside isn’t toxic. Pretty simple.
A time traveler’s survival guide. The vertical green bars are the only times in Earth’s history with enough oxygen to breathe (hypoxia) and low enough to avoid oxygen toxicity (hyperoxia):
That blue bar is extremely pessimistic. Humans can survive pretty well with 15% oxygen, and do so in several places in the Andes mountains, China and India. I wouldn’t recommend doing it without lengthy acclimatizing, especially not considering my last paragraph, but it’s completely survivable by itself.
Humans also don’t really have a problem with 25% oxygen, although that will definitely bring down the life expectancy.
On the other hand, note how those pointers talk about giant insects, megafauna and other scary things. Those are a much bigger problem than the air you’re breathing.
Dumb question, but in a very oxygen rich environment, can you just breathe through a paper bag or something? Mostly just breathe your own exhaled CO2 with a bit of O2 leaking in?
For short periods maybe. You only use a few percent of the O2 you breathe in each time. But you also increase the CO2 each time. It’d depend on the amount of leak because you need enough O2 coming in but enough CO2 going out.
So like how big mosquitos are we talking about?
About crabhead ticks?
Mosquitos are kind of modern, being only 45 million years old, way after the megafauna bugs died.
but think 40cm long, meter wide “dragonflies”, half-meter long “scorpions”, 60cm “spiders” with knifelike front legs and 250cm long millipedes (technically not an insect, but eh)
But if you’re looking for giant mosquitoes, you’re in luck: the very much not-extinct elephant mosquito can grow over 1.5cm long.
Dragonflys don’t scare me, but if we got same proportional upgrades to anything that regularly bites, I would move underground.
bring down the life expectancy
why?
Oxygen is really rough on the DNA due to making the cells “rust” which hampers cell division and/or increases risks of mutations or cancers
So those memes that were “warning” that oxygen was dangerous because it created rust in metal rods is actually true ??
I’m super skeptical of this.
You don’t get oxygen toxicity, even breathing pure oxygen, unless you’re under significantly more pressure than atmospheric pressure…
So either this graphic is wrong/misleading, or the atmosphere was more than double current pressure for most of earth’s history… Which I’m pretty skeptical of.
Is there a higher resolution version?
Is there a version with more JPEG?
Is there a version which actually loads?
My grandfather would tell stories of how the planet used to be covered in plants and you could breathe the air outside. Back when the sky was blue.
Where is this from ?
It is (I hope) an original. Though the form “my grandfather would tell stories” might be bordering on cliché.
I have a feeling that I read this before somewhere
Especially the “Back when the sky was blue” part
It just feels like some dystopian, Bradbury-type implication
Reminded me of his story All Summer in a Day, actually.
I mean he’s got a story about people living on Venus
That’s what I immediately thought of too
Yup. Exactly the one I was thinking of.
I’d be surprised if I’m the first person to say it. If you find your source though, let me know, would be interested in reading it.
It is (I hope) an original
Haha, that’s a big mood.
Sounds to me like Dad needs a little credit here.
Even if you arent good at improv “Thats a good question! I’m not sure, we should look that up!” Is an easy go-to.
Then after shower and get into bed we look up todays questions.
Sounds like you need some credit too!
Get some perri-air
God damnit I missed that pun until now.
This is just your “one of today’s lucky 10,000” moment.
So, where do I find this dad, as opposed to, “Dunno, ask yer mom, and fetch me a
bud lightcoors.”?They’re what you call “nerds.”
So, Lemmy. Lemmy is where you find one.
I guess I’m here, and being the fun nerdy dad is kind of my whole shtick.
Maybe we need a DadAdvice community. Who needs free non-binding advice about random shit?
They make great partners, because their spirits come pre-broken.
And they tell you to get whiskey or rum, not Coors.
Or a Coors. Who cares. It’s alcohol.
Also how many whys does it take to get to the big bang and final we can’t know before popping we need better instruments or math so difficult it’s impossible for even mathematicians to pretend to make sense of besides ‘maybe, the math works anyway.’
Almost everywhere…if all the men in your life are really that shitty it’s time to prioritize getting the fuck out of whatever community you’re stuck in.
I was both of those dads.
“Go get me a beer and let’s figure out the answer to your question!”
That’s awesome. I love weird questions with weird but accurate answers.
Isn’t the ocean that produces most oxygen?
Yes, the ocean grass
Plankton
The algae in it, specifically I believe
Phytoplanktons be like, what’d he say fuck me for (^_-)
deleted by creator
Never been a big fan of kids, but for some reason this post clicked with me. I think I get it.
You sure about that? Having a kid means that you will have to dedicate your money and energy (working), and you will have to be there with them.
But I hope this doesn’t stops you from being a parent. /lh
Dude… just like… think before you speak to a stranger on the internet. You assume. You assume I’ve never raised a child that wasn’t mine in a relationship that lasted 10 years. You assume I didn’t wake up 30 minutes early every morning to drive my exs’ kid to school for 5 years. You assume I don’t have my nieces and nephews over for sleep overs regularly. Mostly you assume that I don’t take the “financial possibilities” of having a child into consideration. Just like shut the fuck up. I’m sorry, but be quiet. The adults are speaking and you don’t know of what you speak. You spew, you throw up nonsense. Be quiet 🤫
Mostly, mostly you may assume I’m female. I’m a 40 y/o male that aches to have a child to love and raise. I yearn for the day when a child says “I love you dad” to me again. Cause it happened with my exs’ child and it’s like a hit from heroin, instantly addicted but in the best way possible
I wasn’t assuming anything, just saying from what I know, sorry if it sounded harmful.
I’m very disappointed there was no praise for dad at the end of all that.
We don’t do that.
My kid is twenty three years old. I raised her alone. Crazy, I know, but she and I are pretty close.
To this day, I get dozens of adulating text messages on mother’s Day for “playing both roles.”
On Father’s Day, total utter crickets except from my daughter herself.
Fathers are here to donate sperm and fund other lives. That’s it.
Happy belated father’s day, from someone who is glad you made this comment. I appreciate you highlighting this issue, because this is something that is sorely lacking in progressive discourse; it’s getting better, I think, but that is likely due to people like you helping people like me to understand how caring fathers are usually not respected or appreciated by the world. (Edit: like you say, “appreciation” towards fathers is usually limited to financial support, which completely ignores the vast majority of what it means to be a father (and also marginalises full-time dads whose partner is the working parent))
As far as I can tell, the whole thing was praising the dad.
Oh look, it’s buzz-Killington.
“Not on this planet… yet.”
Or if you want to go full crash course, “For now, but that hasn’t always been the case and might not be in another million years” and explain things like Oxygen Collapse/Great Oxygenation during the proterozoic when oxygen levels first shot up and killed off a ton of oxygen-hating things.
Aim her at Asimov and Clarke.
Not on this planet… Yet
You know that lil mf reading the expanse.
