Tlaloc_Temporal
@Tlaloc_Temporal@lemmy.ca
- Comment on The Cock-of-the-rock is one of the most difficult Brazilian birds to find in the world. 2 weeks ago:
I believe you can just see the shadow of the beak on the right side of the crest. The crest splits and lays on both sides of the beak sometimes.
- Comment on Literally exactly how it works, too. 2 weeks ago:
That’s not “litterally” how it works then, just “figuratively”.
- Comment on Spicy Air ☢️ 3 weeks ago:
And that’s why replacing coal with fission is a massive step forwards!
- Comment on Science is iterative 3 weeks ago:
Yes, ion thrusters still use conservation of momentum to generate thrust. They aren’t limited by how fast or how hot we can make something explode though, so we can shove way more energy into the stuff they’re throwing out the back. They’re basically tiny coil/railguns, using electricity to move individual ions really fast.
In terms of efficiency, Ion thrusters are 4 to 40 times better than liquid fueled rockets. The draw back is that ion engines make very little thrust for the mass of the engine.
- Comment on Evolution 4 weeks ago:
Coral trees are make of rock wood and each leaf is it’s own organism.
- Comment on Take that ass back 👏 👏 👏 👏 4 weeks ago:
Chromodynamics uses colour to represent the three charges of the strong field, like + and - for the one charge of the electromagnetic field. It rarely interacts with actually visible light.
- Comment on Take that ass back 👏 👏 👏 👏 4 weeks ago:
The Feynman diagrams? I think those just represent terms in a statistical integral. It’s a nice way of describing an otherwise horrendously arcane function.
- Comment on caww caww 1 month ago:
It’s older than genAI by at least a decade.
- Comment on A shrubbery! 1 month ago:
I’m pointing out flaws in your reasoning. Bulbous and small aren’t good categories, especially when you recognized that raspberries are different.
I would contest that the nature of a cultural berry is being a small sweet fruit that typically wants to be eaten. Strawberries sit alongside gooseberries, raspberries, cherries, and all the other traditional berries in this. Strawberries are certainly unique in their structure, but that doesn’t change how we eat them.
The botanical berry definition has little to do with the cultural definition besides taking the name. Try looking at the botanical definition of tree sometime. Does Bamboo count? Palm trees? Ginkgo? It’s a strategy for than a rigid group.
- Comment on Some cheeses are luminescent. 1 month ago:
“Dark” here apparently means “unsern” or “hidden”, but it’s incredibly confusing.
- Comment on A shrubbery! 1 month ago:
Bayberries/waxberries aren’t really smootth, and Yewberries aren’t very bulbous.
Haskap berries are lumpy and mealy, are they not berries?
Do groundcherries count with their paper husk? Tomatillos? Cherry Tomatos?
Are cherries berries? Rose hips?
Cherry chili peppers are bulbous and smooth, are they berries?
Raspberries and blackberries often have little hairs growing off of each fruit, does that mean they’re not smooth? If hair is ok, kiwifruit are bulbous, but hariy.
- Comment on Turbine go brrrr 1 month ago:
True, we can optimize the cycles more. Like double expansion piston engines, or that crazy proposal for a hydrid steam-mercury super high pressure power plant.
- Comment on Turbine go brrrr 1 month ago:
I’ll believe it when I see it. They have so many material science challenges ahead of them and aren’t very forthcoming with progress.
- Comment on Turbine go brrrr 1 month ago:
Unfortunately, there’s no way to get energy out of waste heat that won’t be spent pushing that heat a little harder. Already a significant amount of energy is spent cooling data centers, any attempts at energy recapture will just make that cooling harder.
The best we can do is something like district heating, because heat pumps can get over 100% effective efficiency.
- Comment on Sad Ganymede noises 4 months ago:
200+ dwarf planet candidates. Lots of them have very low densities, and most are too far away to know hardly anything about them. Pluto was only confirmed to be in hydrostatic equilibrium with New Horizons, and Quaoar has a Dwarf Planet name, but probably isn’t in hydrostatic equilibrium.
It’s not the specific bodies I’m worried about, it’s a useful idea of a planet. Finding dozens or hundreds more of them should be exciting, not a reason to throw up our hands and disqualify them.
- Comment on Sad Ganymede noises 4 months ago:
I think “Planet” should be a gravitationally rounded mass that’s not a star anyway. Those can be divided into rocky and gaseous, and further divided by principal composition.
Smaller than that isn’t usually worth having a name, but moons can be just as interesting as free orbiting planets.
The distinction between minor and major planets is decently clear in our star system, but if we define it poorly it won’t help us understand other systems or why the major ones are important. It’s definitely not enough to disqualify minor planets from being full planets though. Go ahead and declare 8 major planets arbitrarily, but don’t try to justify ignoring the other few dozen planetoids poorly.
- Comment on I hacked mars! 4 months ago:
You need that living habitate to survive 6 months in 0g minimum, plus move it planetside without breaking anything.
You could expand the habitate to a larger area later, true, but there’s still like 7 mass cycles that need to be maintained long term, and this system needs to be robust enough to trust a few dozen people to. Otherwise, it’s just an extension of Earth’s biosphere and is dependent on regular resupply.
- Comment on I hacked mars! 4 months ago:
Ceres would be a way better start. Lots of water for shielding, consumption, and fuel; easy access to asteroid orbits; and a shallow gravity well to make transport easy.
Similarly, many of the icy moons around the gas giants would be good, also with decent mining, but better science opportunities too!
Our Moon is good too. Close, big enough to not need zero gravity setups. That’s actually about it really, it’s just right here. May as well do Orbit I guess.
Start with Antarctica and the ocean floor. That’s still 80% as difficult, and rescue can take 30 minutes, not 3 days or 10 months!
- Comment on I hacked mars! 4 months ago:
You need a very big one though, and humans need a more varied diet than soil bugs.
You’d also need to deploy the system, or find a way to maintain it all the way from Earth orbit to Mars’ surface.
- Comment on I hacked mars! 4 months ago:
1kg of oxygen is a good estimate, humand need 0.5-1kg per day.
Astronaut calorie budges is a bit higher than average, as would be for labouring humans. About 3000kcal, or 12 MJ.
I think more important than the raw energy and oxygen is sourcing the water, cleaning the water, producing the energy to electrolyse and heat, and maintaining the equipment necessary to do so. And that’s assuming all food is shipped in.
- Comment on I’m somewhat of a bad dude myself 🐟 4 months ago:
That’s a Scleral Ring and helps to keep the shape of the eye in fish, many reptiles, and birds. Fish don’t have round eyes (they’re shaped more like M&Ms or chocolate chips), and the ring helps support the shape when swimming. Most rings are just cartilage, but fast swimmers often have bony rings.
- Comment on How about the digestive system? 4 months ago:
That’s why we have the compound word “through-hole”.
90% of important parts on living things are pockets and manipulations of surface area, two things completely ignored by topology. Topology is interesting mathematically, and has meaning for traversal and knot problems, but it’s not really useful to describe reality.
- Comment on How about the digestive system? 4 months ago:
And yet each indentation could hold something, like cheese or a kitten, so each indentation in functionally different from a smooth surface.
Deforming a shape changes it, thus topology is a special case of specifically ignoring most aspects of a shape.
- Comment on bumper sticker 5 months ago:
I think the problem would be getting enough reflected light and not too much radiant light from the compression and/or fusion plasma.
- Comment on Ġ̵̻ͅį̴̹̜̼̙͍͋̈̕m̷̦͎͈̎̄̄̿̈ṁ̶̭̫͓̞̻̾̂̚ë̶͚́̍̀͆ ̴̻͗̈́̿̂̚͝f̴̧̳̝͓̫̆̍͌͠u̸̧̖̠̗͔̽̽̾ȇ̶̝̠̎̔l̵̡͙͔̀́̃́̓͘,̵̠̜̽͛ ̴͙̜͇͚̥̜̑͛͐̓͆͒ḡ̸̮͝͠ḯ̸͍̩͛͗̍͝ṁ̶̛͎̖̭̖̓̃͑̃ḿ̵̫̇e̸͈͕̍̍͒ ̸̧̣̣̣̹̺͌̃ẇ̴̤̳͇̪̝̑̈́̏̚i̶͖͒̒r̶̢̪̙͉̭̥̂̐e̵̞̳̻̍͘ 5 months ago:
Yes, but at that point it’s not really voltage anymore. It would be more like a rapidly expanding cloud of electrons ionizing anything it came across.
It could be more focused though a magnetar though, and a magnetar might conduct the ionised plasma nearby, or even through the galaxy in interactions with the local supermassive black hole.
- Comment on electricity is honestly eldritch 5 months ago:
Well the path of least resistance is pretty full right now, the path of next most resistance seems like less bother.
- Comment on Sea Level 5 months ago:
The Sol-Jupiter system would have a bary center just 7% outside the surface of Sol. The effect of all the Gas Giants together can either center the syster in Sol’s core or move the barycenter 120% outside Sol.
The really weird thing is that the part of stars outside the core is more like an atmosphere. If the star gets hotter, the parts outside the core can expand. This is happening slowly as Sol’s core fills up with Helium and becomes denser, which fuses Hydrogen faster. So despite weighing less, the Sol-Jupiter barycenter will be engulfed within Sol’s envelope. Once Sol stops fusing Hydrogen in it’s core, the core will shrink and heat up, fusing Hydrogen in a shell around the core, which will cause the envelope to grow and engulf Venus and possibly Earth directly, and definitely contain the full system’s barycenter. After that it will release a bunch of mass in a planetary nebula, which will cause it to shrink a lot, and the remaining planets will probably orbit much farther out, which would throw the barycenter waaaayyyyyy outside of the white dwarf left over.
- Comment on Sea Level 5 months ago:
So bad that bridge players see a perfect deal like once a decade. It often makes the news.
- Comment on Contadont deny it. 5 months ago:
Ooo, a cladistic pun!
- Comment on The Warbussy 5 months ago:
Far better names than most others get. What the hell does a C. elegans elegans look like?