u/MrNesti

sure, it might be some other green material, but if a planet is in the habitable zone, has oceans and green, unidentifiable land, can't we just assume that thats some type of grass or plant?

I often see things about "earth like exoplanets" get thrown around on the internet. The videos in which I hear of them make them out to be completely clear and confirmed to be habitable for life, some even more than earth, but how much of that is actually official knowledge and how much are just rumors? I also dont hear alot of said exoplanets aside from clickbait looking youtube videos

EDIT: i dont specifically mean grass, but generally some kind of organic matter that covers large areas of land

Recently ive been looking into getting speakers for my beamer arrangement and I always see the term subwoofer being thrown around on here. I know that it amplifies or multiplies low frequency sounds to create bass or whatever but thats about it. Is it built into most speakers? If not, are they expensive? How many do I need? One for each speaker or just one per seddap?

Im planning to get the EDIFIER R1280DB and on "subwoofer-input" it just says bluetooth. Does that mean i have to regularly charge a piece of my stereo thingys?

mods pls dont remove, nobody checks megathreads

before biology class a couple of weeks ago, I kind of always just assumed the body transforms and adapts in minimal ways over hundreds of thousands of years, which, according to what my teacher said that lesson, is total bullshit, and that the only major changes would occur through mutation, thus being completely random/Independent of the environment, and natural selection playing the part in bringing evolution forward.

If thats true, then how did fish begin to develop lungs? Gills and lungs feel like absolute opposites, to me it seems like saying a person can just be born with the abillity to breathe water. It being a gradual process doesnt make sense to me, how can a fish breathe mostly water but also a tiny bit of air? Would a fish with lungs not drown? So how would natural selection help it forward?

Another thing is things recessing, like apes not having tails. Yeah, maybe a long tail like that of a monkey would be useless or even a slight hinderance to something that walks upright, but surely not to the point where anyone with anything even resembling a tail in the slightest would not find a partner and die out, right? Same thing with fish and lungs. Unless a fish was one day just randomly born with fully developed lungs, ready to live on land, there should have been a point at which a subspecies of fish could breathe both air and water, and I dont see any reason why theyd lose the ability to breathe water overtime

Today I thought about how there are different types of intelligence (such as emotional intelligence, problem solving, etc) and then I came to the conclusion that IQ Tests arent really that accurate.

Later, I wondered about how cats seem alot smarter than dogs even though their brains are probably smaller, where I then thought that the correct way to measure intelligence would probably be brain volume, mass, density and potentially size compared to the body.

This could explain how humans are smarter than whales despite their brains being as big as a beach ball and being roughly 5 times heavier than ours on average

Am I correct or completely wrong? Its probably not that simple right