All the planets in the solar system can fit between the earth and the moon
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.
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.
You could calculate it more accurately, of course. But the relationship between earth’s circumference and the distance to the moon is roughly 1:10, purely by coincidence, making it easy to calculate an estimate when scaling earth up or down.
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.
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.
Sharks are older than trees
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
They are also older than the rings of Saturn.
Also trees existed before bacteria did. So when a tree died it just fell over and sat there for a while. Never decomposing
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?
There are more hydrogen atoms in a single molecule of water than there are stars in the solar system.
:P
There a more hydrogen atoms in a single molecule of water, than there are stars in the entire solar system.
Told that joke to my daughter. Didn’t understand it. Fine, hydrogen, atoms molecules… thought one for a 10 y/o with no particular interest in science.
But then I asked how many stars our solar system had.
Answer: “I don’t know”
Asked with emphasis on “our solar system”.
Answer: “Infiite number of stars”
Asked how many stars are in out living room
Answer: “Zero”
Asked how many stars are on our planet
Answer: “Zero”
Me thinking we are on track and that she understood the scoping error in her first assessment asking the original question again with emphasis on sun (in german its sonnensystem, I.e. sun system, so it makes sense)
Answer: “Zero”
Lovely seeing extrapolation in real live.
I’m sorry, you are raising an AI.
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
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
I hope it’s not it Canonical might sue them.
Red grapefruits were originally created by planting yellow grapefruit near a radioactive source with the express purpose of creating mutations in the plant.
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.
The moon is currently drifting away from the Earth. Eventually, that will make total eclipses impossible, so enjoy them while they last.
Fast forward a few billion years, and the Sun begins to swell up, engulfing the closest planets. At some point, the atmosphere of the Sun could begin to cause drag on the Moon, slowing it down. If so, the Moon begins to crash down on Earth. Once it reaches the Roche limit, it gets shredded into kwazillion bits, and the Earth will have rings, just like Saturn.
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
E: Invalid operation username
Glass is absolutely a solid, the term amorphous just refers to the structure being non-crystalline. It’s still a solid tho.
I was taught glass is a supercooled liquid. If you look at window panes that are over 100 years old they are thicker at the bottom than at the top because they slowly flow down due to gravity.
We were taught wrong. That is an artifact of how the glass was made.
https://www.scientificamerican.com/article/fact-fiction-glass-liquid/
That article doesn’t contradict what I was taught, just that the reason for the melted appearance of old glass isn’t due to this state, as that would take longer than the universe has existed to reach that effect, but due to old glass making techniques. We weren’t taught wrong, just given the wrong timeframe for it to happen. Doesn’t change the fact that glass isn’t a solid. Don’t know why my original comment is currently negative. I guess I’m taking the down votes earned by my chemistry teachers back in the 90s.
On the scale of millions of years, everything flows.
Well, if it is a type of glass, it will flow until it is able to cool enough to crystallize
No matter how much you cool a glass, it won’t crystallise. You have to go over the glass transition temperature and cool down slowly enough for crystals to form. In the case of silica glass, that’s not going to happen, though, because it’s a “strong glass former” - it doesn’t crystallise unless you do something pretty extreme.
I think you might actually be thinking of the Pitch Drop Experiment?
https://en.wikipedia.org/wiki/Pitch_drop_experiment?wprov=sfla1No.
Honestly, I probably won’t post anything like this again. Lemmy is turning into Reddit way too much.
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Why do people ask questions like this?
Why do you lack basic curiosity?
I don’t. I’m also not asking broad-ass questions like “how long is a string?”
These are reddit-style click bait engagement questions.
That’s okay. We’re not on reddit and just have a lighthearted chat without corporate interests in it.
The chip on my shoulder wants to rattle off a litany of facts related to women’s health, but I imagine this was intended to be a lighthearted post so I’ll grab my popcorn and wait to see what others share
You can’t just tease us like that and not deliver…
I wanna hear all of them!
