science goddammit

trash-cactus  asked:

bc youre one of the few people i feel i can trust on this: are the 7 potentially habitable planets NASA found really that big of a deal and all the hype around them is justified? or are they just another 7 rocks that are vaguely the size and temperature of earth without actually being particularly special to us otherwise, let alone truly habitable? i wanna get excited about new planets but i often see people acting like a planet is "habitable" just bc it wont kill you in 2 seconds so i gotta ask

They’re just seven new rocks. They’re probably tidally locked to their star, too, which means that one side always faces the sun and the other side always faces away, which would make the planet completely unsuitable for anything more than microbial life. Until we know more–like getting atmospheric spectrometric data that indicates one or more of them has an atmosphere–I wouldn’t get too hype.

Toby has some ‘splaining to do!

So I tried to explain the whole Asriel situation and the @dreemurr-reborn theory with Frisk sacrificing their soul to bring back Asriel, and this is basically what happened.

Flowey says:

Okay so as Flowey, Asriel is soulless, his soul breaks shortly after dying, Flowey is just his essence….but then:

Wait, Asriel doesn’t have soul anymore, its destroyed, but I guess somehow you brought back his soul? thats why he can feel love again now, because he has his soul back?

wait,  I thought you got your soul back? don’t you still have it? and if you gave back the souls, how are you still like this and capable of feeling love? how do you have any power to still maintain this form at all if you gave all the souls back? what did you do with the human souls that can’t be given back? why are they not revolting like before when you were Photoshop Flowey? 
can’t you just keep the 6 human souls because being in a little goat boy is probably better than being returned to a giant jar that stays in the same place?
do you really need 7 human souls worth of power to maintain a boss monster soul that is a fraction the power of a single human soul? you were able to be a horrible abomination with 6 human souls before, why can’t you maintain the form of a goat boy, or at the very least, turn back into a flower but have 6 human souls worth of compassion? 

man, this is a lot of questions, lets go see what the royal scientist has researched about the nature of souls that we don’t already know from the historic plagues and talking to a flower and goat child.

Oh great! let me go visit the library and see what you’ve figured out about the nature of the soul.


anonymous asked:

Science question: I don't know if you've heard about the supposed NASA-developed EM drive paper that's been peer reviewed and published. As far you as you can tell, is this like, an actual thing?

Yeah, let’s talk about that thing.

So last year, NASA’s Eagleworks team built and tested something called an “electromagnetic propulsion drive,” or EmDrive for short. The paper about their work has just passed peer review and been published. The Eagleworks team is a small group of people within NASA whose job it is to test out the weirdest things in science. You know: they try to build warp engines and lightsabers and shit.

And the EmDrive is in that same category of weird science. The idea is pretty simple: you take a cone, and you fire a bunch of microwaves into it. Because of how the cone is shaped, the microwaves concentrated in the narrow end of the cone would have greater collective momentum than the microwaves that were spread out in the wider base of the cone. That difference should generate thrust, like, for powering a space ship or something.

This is an exciting idea because, if it worked, it’d be an engine that didn’t need fuel. If it worked well enough, it could theoretically propel us to Mars in two or three months, instead of the years it takes us now.

It is also, according to many in the physics community, a dumb and annoying idea, because it violates Newton’s Third Law of Motion, which means it’s impossible and the nerds at Eagleworks should get back to work.

Newton’s Third Law is the one that says that every action has an equal and opposite reaction. In this context, that means that you can’t generate thrust unless you’re pushing against something. Your feet push against the ground when you walk. Airplanes push against the air. You can’t just have spontaneous force that doesn’t push aside something else, for the same reason that you couldn’t walk if you were tumbling freely through space.

And yet the EmDrive seems to do exactly that. It generates thrust without generating any exhaust. No equal-but-opposite force is observed.

So, science is wrong about Newton’s third law? Smooth down your britches, Nellie. Think about what you’re saying. If EmDrives actually work the way this suggests they work, you could make a perpetual motion machine with them. You could make a big wheel, put EmDrives at the end of each spoke, then whirl the thing faster and faster and faster and it would just go forever, producing way more energy than it takes to supply them with microwaves. Then you could siphon energy off of them and run an entire city off of one weird whirling cone wheel.

That sounds cool, but also stupid and like magic.

And yet, the EmDrive NASA made did appear to generate thrust. NASA wasn’t the first team to try to build one of these things, either: it’s been done before by a team in China, and a team in Germany. The team in China did not observe thrust; the team in Germany did, although they did not submit their findings for peer review.

So, there are a couple possible explanations for how the cone-engine works, when everything we know about physics says it shouldn’t.

1) The EmDrive is producing an equal but opposite force; we just can’t see it. Fans of the EmDrive have suggested that it’s pushing against invisible, temporary quantum particles we currently have no way of measuring.

2) The experiment was flawed and the thing doesn’t actually work.

Here’s the thing about peer review. It doesn’t mean that the scientists doing the reviewing go off conduct the experiment themselves. It means they read the paper the team put together, think about it, and come back with questions or criticisms about the team’s methodology. The team then attempts to correct their errors or answer any questions to that peer’s satisfaction.

It doesn’t mean the Eagleworks team’s results can be replicated. It doesn’t mean their instruments might not have a flaw they don’t know about. It doesn’t mean that the experiment’s results are right. It just means that the experiment itself is conceptually sound.

And listen. The EmDrive used in the NASA experiment was made in somebody’s dining room. Like, literally, just, on somebody’s dining room table. It was described by one person on the team as looking like “something my mom would hang from a tree to scare away wild animals.”

Personally, I’m skeptical that mom’s squirrel-spooker is going to overturn the Third Law of Motion. I think it’s way more likely that there was some experimental error the team just hasn’t caught yet. Now that this has made such a big splash, lots more teams are going to be trying this experiment, and we should find out pretty fast if there’s really anything to the “impossible engine.”

If it does work, that would be totally badass. Even if it only kinda works, in one particular way, on a technicality, and won’t get us to Mars but might still have some interesting applications if we just workshop the idea for another ten or fifteen years, that’d still be pretty cool. But my advice? Is don’t get too excited.

Sources: 1 2 3 4 5

Man what the hell is with people getting all mad or crying over the loss of contact with Opportunity. All these news articles and memes are treating this rover as if it were like, a dog that we shot into space and left to die? Guys, I know where youre coming from but it’s just a platform of tools that has stopped functioning after far exceeding its intended purpose. It didnt sing happy birthday to itself (that was Curiosity). It didnt say “my battery is low and it’s getting dark” (it sent a series of system error codes to that effect and media outlets paraphrased that into a viral “quote”).

We should be proud of the men and women behind this machine, the engineers who made a 90 day mission last 15 years. I know human psychology is such that we have the urge to anthropomorphize and sympathize with everything, but it’s fine. It’s a robot thats out of juice. We’ll recover it someday when humanity sets foot on Mars, which I hope will happen in the next few decades. Oppy-chan, or whatever the fuck yall are calling it now, just needs to be patient.

Also why just now, with Opportunity? Didnt see anyone crying over the two Voyagers leaving the solar system to never return. Didnt see anyone drawing heartwrenching comics when Cassini, the amazingly successful orbiter which pointed to potential extraterrestrial life in our own solar system, made a final death plunge in 2017. When Hayabusa burned up in our atmosphere after delivering the first-ever geological samples from an asteroid, I didnt see anyone cryi- oh wait, yeah, actually Hatsune Miku managed to make people cry about that one.

My point is, if you’re gonna pretend to care about space ex, at least have the courtesy of caring about all of it and not just whatever happens to trending on twitter.

mindturnedoff  asked:

Hey, I've noticed you reblogged a few things about AI/neural networks today and I've found those topics super interesting; I respect your curating abilities, any recommendations on who I should follow to see more of that stuff? Thanks!

Hmm…I follow just a lot of science-y-related blogs, but nothing that I think reports on those topics specifically. If you’re into a specific field of science, I think you’re usually better off hitting up the archives of a popular science publication like New Scientist, that lets you search by topic and has tons of laymen-friendly material!

anonymous asked:

hey sorry im not sure if youre the right person to ask, but youre the only one i follow on here who i feel could possibly help me out so i was wondering if you could recommend any blogs that post about quantum theory and multiverse theory a lot?? i wanna learn more about those things and have no idea where to start really, so if you know any blogs or even sites off tumblr about that itd be really cool! thank you in advance

I don’t know of any blogs that talk about quantum theory specifically, no; it’s not really a topic that has a lot of cool images or lots of frequent developments that would make it easy to blog about. I think the best place to start would definitely be sitting down to some introductory articles!

I like New Scientist! It’s a very friendly site. And you can put pretty much anything you’re interested in into their search bar, and get dozens of articles about it. I put in “quantum theory” and got these that looked promising:

Reality Guide: The Essential Laws of Quantum Physics

Introduction: Quantum World

Quantum Twist Could Kill Off The Multiverse

Seven Wonders of the Quantum World

Quantum’s the tits. Enjoy!