There’s 10⁹ living cells in a gram of surface soil, and in 20 km depth that reduces to 10⁶ cells per gram, but they’re still alive and actively metabolizing down there! eating rock, mmhm tasty rock oh yeah! :p
they have cell turnover rates of hundreds of years though, so they age very slowly and multiply very slowly due to energy shortage.
Life uhh… find a way.
I wonder if they ever check samples from like meteors, asteroids or moon rocks for evidence of that kind of organism.
80% of the neurons in your brain are in your cerebellum
The universe and everything in it is mostly empty space.
I’m sure you’re also referring to empty atoms too heh
Yep. Most of us is nothing.
Fundamentally everything and everyone, even nothing, is made of the same fields of invisible…stuff. We can measure them in very accurate detail. We are all connected. We are all ripples and waves in those fields. Everything is. If only you could see the entire spectrum of light, you would see one of those fields.
All I can see when I look in your eyes are the waves of love that connect us.
Apt username
There a more hydrogen atoms in a single molecule of water, than there are stars in the entire solar system.
At least read the top comment before you write the exact same thing.
Sorry I don’t have it sorted by top :p
Heehee, you’re clever.
Male ducks have a corkscrew penis almost as long as their body. Female ducks have vaginas that corkscrew in the opposite direction, with false endings. Ducks do not have consent, so nature found a way.
Does the male spin his body around in an impossible way until he’s fully inserted? Or does he just shove it straight in, painfully eviscerating her?
Even better! They just kinda fire out and expand like a balloon you’d use for a balloon animal.
Wait…m have you never seen the spinning ducks on the lake before?
The rape labyrinth
Trump branded hedge maze
Time derivatives!
- Rate of change in position is called velocity
- Rate of change in velocity is called acceleration
- Rate of change in acceleration is called jerk
- Rate of change in jerk is called snap
- Rate of change in snap is called crackle
- Rate of change in crackle is called pop
Snap crackle pop and Bob’s your uncle, easy peasy
And if I recall correctly
- Rate of change in pop is called lock
- Rate of change in lock is called drop
When the fuck could those possibly be useful? 😆🙃
IIRC the James Webb had/has max snap, crackle and pop tolerances. Not sure about these two.
Not sure about anything past crackle, but minimum snap trajectory is widely used in efficient path planning for quadcopters.
I can’t even comprehend what something beyond jerk means in reality or how to even produce it by physical means
Well these are higher order derivatives, so they do have physical meaning but the latter ones are increasingly abstract and subtle from our normal earthly perspective.
If you think of a stable and perfectly circular orbit, that’s a steady and constant acceleration. Then if you thrust to make it elliptical, you’re changing the acceleration which can be measured as jerk. But then if that thrust itself is variable, you can measure its changes as snap. And then of course the rate of how much you change that is crackle, and so on.
If I was working with those concepts, I’d just start using numbers.
Like, acceleration is v2, jerk is v3, and so on.
These are n th order mathematical derivatives so I’m pretty sure physicists do something very similar to that whenever n matters.
In aerodynamics I guess
They aren’t useful. It is just scientists memeing. Any research that involves anything past jerk would be esoteric.
This explains the sounds when I move to get up, these days.
Is it snap? You might have to slow down your rate of jerk
Wait, what. 🤩
Don’t forget jitter, now!
Which one is jitter?
Jitter is a technical term for latency variations between Internet packets over time.
High jitter is bad for VoIP and online gaming and potentially streaming if the jitter is caused by packet loss and retransmits.
None of those, but I think a series of irregular jerks could be considered jitter.
So trump, elon and hegseth form a jitter?
I only know jitter as irregularity in data flow (e.g. network packets).
Jerk is sometimes called jolt though. Both terms seem fitting to me. Supposedly in roller coaster design, having too much jerk/jolt can be quite unpleasant for riders. Which kind of makes sense, if the acceleration varies too wildly I could see that making me sick.
If you took all the DNA from every cell of one person and laid it in a straight line they would die
Relevant xkcd: How long would you survive with no DNA?
Red grapefruits were originally created by planting yellow grapefruit near a radioactive source with the express purpose of creating mutations in the plant.
Radioactivity and chemical mutagens are normal methods of creating new traits in crops. That’s how new varieties of fruits, grains etc. are often created. Nobody knows what exactly it does on the genomic level, usually. And then people complain about modifying a specific gene by targetted tools…
From what I read, red grapefruit like Ruby Red existed naturally, but the atomic mutations only made them more red / not fade over time.
Commies! They’re in your fruits!
Commies and fruits have been bedfellows for a long time.
So that’s where Oxygen Not Included got the idea from.
There are more hydrogen atoms in a single molecule of water than there are stars in the solar system.
:P
For now…
you mean the galaxy, a solar system usually has 1 star.
Woosh!
And a water molecule has 2 hydrogen atoms…
Yeah and how many hydrogen atoms are there in a SINGLE water molecule?
If memory serves, binary star systems are more common but the statement was specifically on the system around Sol
Some have more than one, and no solar system has zero stars, so the average is greater than one.
What about when the stars degrade into a dwarf?
Toads swallow food with their eyes. When they snag some food into their mouth they close their eyelids, and their eyes go inside and help push food down the throat before coming back up to the front of the head.
It’s always fascinating for me to learn about the totally unexpected and “creative” solutions evolution “comes up” with, real or simulated.
Sounds like a usefull skill for the next all you can eat buffet.
That would bring new meaning to “eyes bigger than your stomach”
All the planets in the solar system can fit between the earth and the moon
And murcury is the closest planet to all of them!
Australia is wider than the moon. If earth had the size of a football (soccer), the moon would be about 7m away. If the sun had a diameter of 1m, Neptune would be 5.6km away. In that scale model, the next star would be placed in the outer planets. Space is insanely big.
I’m confused what you mean by wider. As far as I can tell Australia is about 4000km wide and the moon’s circumference is about 11000km
EDIT: it’s late and I am dumb, I take it you mean the moon’s diameter! 3474km
7 meters?
I looked up the circumference of a football and it said about 70cm. As the moon is about 10 times the circumference of the earth away, that’d put the moon at 7m away.
Diameter or circumference?
A 70cm diameter soccer ball (>2 ft across) would be kinda fun. Except headers the CTE would be even worse!
All Very true facts. I admit I was and am still taken aback by the measurement and extrapolation of linear distances using… circumference.
Yeah it’s a weird way to make the distances sound shorter than pi*(a measurement we all can visualize).
That’s insane when you really think about it.
I doubt we’ll ever leave our systemIf you count Voyager, we already have.
Otherwise … Yea, I’ll be surprised if society in general even makes it to 2100 unscathed.
Bad news with the AMOC modeling yesterday. 2100 is starting to seem optimistic…
Voyager is fantastic, but it’s still way, way closer to the solar system than anything else.
An excerpt from Wikipedia:
At this rate, it would need about 17,565 years to travel a single light-year.[78] To compare, Proxima Centauri, the closest star to the Sun, is about 4.2 light-years (2.65×105 AU) distant. If the spacecraft was traveling in the direction of that star, it would take 73,775 years to reach it. Voyager 1 is heading in the direction of the constellation Ophiuchus.
This is why I don’t get excited to hear about the discovery of ‘Earth-like planets’ 182 light years away.
30 years ago we didn’t even know for sure if planets around other stars was a common thing and had no expectation we’d actually know their chemical compositions
Yes, and they are still on a galactic orbit, not a solar orbit. They are, unquestionably, the first things we’re sending off, regardless of whether they arrive anywhere substantial.
Gonna need a fact check on this one.
Are we counting the gas of Jupiter or just the solid core? Same for the others
Actually, Jupiter doesn’t have a solid core the way you think! The gases just get so dense at the core that it starts to behave like a solid. You couldn’t, like, blow away all the clouds and have some rock to wander around on.
I assumed the hydrogen had become condensed into a crystal solid? Or at least, that’s the current theory
Whole planets. You do have to cant Saturn because the rings don’t fit
thats why you just flip Saturn so the rings unobtrusively stick up and down and not horizontal
they’re ephemeral anyway
Snakes have two dicks.
I mean… Everyone who’s scrolled on e621 for 2 mins knows this
So there are two mes inside me. One of them looked up what that is and then promptly told the other me not to.
“Hemipenis”
See also: Brodozer and Pavement Princess.
Like a… bifurcated one similar to their tongue or they have two in different parts of their body? And do females also have two holes? Are snake threesomes a thing?
So many questions!
They’re Klingons?
Sharks are older than trees
They are also older than the rings of Saturn.
Sharks are older than fire.
Sharks existed before there was enough O2 in the atmosphere to sustain a fire.
What. The. Fuck.
The real facts are in the sub-comments
They must have been really hungry for a long time before their staple diet of attractive people on beaches arrived :D
Also trees existed before bacteria did. So when a tree died it just fell over and sat there for a while. Never decomposing
I don’t think trees are older than bacteria in general. Bacteria still existed, it’s just that bacteria didn’t develop the ability to break down wood until long after trees had come on the scene
It’d be remarkably fortuitous if bacteria evolved to break down wood before wood existed.
The earliest trees evolved around 400 million years ago.
The ancestors of bacteria were unicellular microorganisms that were the first forms of life to appear on Earth, about 4 billion years ago.[23] For about 3 billion years, most organisms were microscopic, and bacteria and archaea were the dominant forms of life.
Yeah, I was quick in writing that comment
that isnt true, there was no decomposing fungi, bacteria that evolved yet at the time of the carbiniferous peroid, and those “tree” were actually gigantic gametophytes(posessing half the chromosomes) of early bryophytes. the actual first tree dint evolve til after that peroid.
Wild fires must have been insane.
Clouds.
- polar stratospheric clouds play an important role in creating the ozone hole
- the highest clouds on earth are about 80 km high
- in the mid-latitudes most rain is cold rain, that means it leaves the clouds as ice and melts on the way down
- pure water droplets without an aerosol inside (cloud condensation nucleus) freeze at about -40°C, sea salt aerosols make cloud droplets freeze at about -38°C, …
And there’s much more to be found.
