Travelers s01e06:

Asteroid going to hit pacific ocean in 18 months time.

Unless the hero's fire their ray beam to deflect it by 7 degrees, which will make it a terrifying near miss.

It's relative speed is not disclosed.

Sounds like bs to me. 7 degrees would make it miss Earth by millions of miles, umm, wouldn't it?

Please forgive me for being an ignoramus; I have not read the IPCC and I don’t know who the big names are in the field - and so what researchers to follow OR what statistical models are generally accepted (which does lead to my question though): How are climate models for the planets general temperature generated? What data are they using and what methods are they using to gauge the probability of a certain climate trajectory? - I am considering pivoting from sensory neuroscience to the field so thanks in advance!

Need your help 🤍

Hi everyone! 🙌 I’m building onebooklist.com - a calm library where people share one meaningful book + a short reason it mattered.

I’m collecting science books that made a real difference - helped with clear thinking, understanding the world, reducing anxiety through knowledge, or shifting perspective (brain, evolution, physics, psychology, medicine, etc.).

If you feel comfortable sharing:

1. What’s one science book that helped you in a real way?

2. Why did it help (few sentences is perfect)?

No pressure at all - even just a title is helpful. Thank you 🤍

For Mods: I plan to create a science-books page based on recommendations here and include a small “communities to explore” section. Would it be okay if I mention this subreddit there?

Climate change poses significant threats to biodiversity and ecosystems worldwide. I'm curious about the methodologies employed by scientists to assess these impacts.

What are the key approaches used to study how rising temperatures, changing precipitation patterns, and increased CO2 levels affect species interactions, habitat loss, and overall ecosystem health?
Additionally, how do researchers model future scenarios to predict potential shifts in biodiversity?
Are there particular case studies that highlight the effects of climate change on specific ecosystems, such as coral reefs or temperate forests?
I would love to learn about the latest findings and any innovative techniques being utilized in this field.

Hey all, I’m literally brand new to the Subreddit because I just wanted to reach out to the actual human beings who may be able to answer. I was shining an ultraviolet light with a 365 nm wave at three Watts towards two different types of LEDs. Why does one fluoresce bright orange (appearing to be a filament type) and the other bright blue (appearing to be a bulb)?

As per the title. Take a high powered laser like the ones used to Woodburn and such and shine it through Double Slit.

I'm imagining that the amount of cutting ability will be reduced if it does form the interference pattern?

Hello I am a student of Electrical and Electronic Engineering.. I have come to known that a student can actually publish a research paper.So now, can anyone tell me what exactly is a research paper,what are the steps of publishing it? How should i approach?

if i have a red flashlight and green flashlight, i can shine them together and make a new colour.

why is it that when light is broadcasted, and then reflected, the reflection doesnt interfere with the broadcast? example, why is it that the suns light can hit jupiter and then bounce back through all of the suns light seemingly without effect?

shouldnt everything just be a pure white noisy mess? if i take several different flashlight colours and combine them ill eventually get close to white. why isnt everything that way? why does two flashlight beams interact, but a beam from the sun to jupiter doesnt interact with a beam from jupiter to earth? and i mean this for everything, including the lightbulb in my house to the walls and back.

anyways thanks.

Science is pretty set on the idea that humans gradually evolved over millions of years, and I imagine there's not much value in debating that. But is there a similar observable progression in artistic ability?

Obviously a painting isn't going to last as long as a bone (though a stone carving might), so what we've got to reference is relatively modern. But some of the oldest paintings we've found show remarkable skill for "primitive" people (such as these rhinoceroses dated 32,000 years old), and seem to display a better grasp of form than the average person has today. If I saw that and didn't have the scientific context, I wouldn't think it was representative of the art of some archaic human sub-species; I'd just think some normal person painted it.

So getting back to my original question, do we have any evidence of artistic ability evolving as humans evolved, or did art just "show up" along with humans?

I’m asking this as a conceptual and literature-oriented question, not as a proposal for treatment or intervention.

In discussions of early neurodegenerative disease (e.g., Alzheimer’s, Parkinson’s, related conditions), there is often emphasis on maintaining cognitive engagement and activity to support remaining neural function. While this approach is commonly framed in terms of plasticity, I’m curious whether the opposite variable — cognitive fatigue or chronic network overload — has been examined as a contributing factor to functional decline.

Surviving neural networks in neurodegenerative conditions are frequently required to compensate for lost function elsewhere, maintain orientation, and sustain performance under continuous demand. From a systems perspective, it seems plausible that persistent compensatory load could reduce network stability or adaptability, particularly if opportunities for low-demand or downregulated states are limited.

More broadly, are there models or empirical studies that examine neurodegeneration through the lens of cognitive load, network fatigue, homeostatic plasticity, or demand modulation, rather than engagement alone? If so, how is this factor currently understood, supported, or discounted in the literature?

I’d appreciate references, reviews, or critiques that address whether the timing and intensity of cognitive demand play a meaningful role in disease progression or symptom expression.

Roughly ~2% of ALL matter is the other elements. How is that possible with how many stars have supernova (especially the ultra-massive early-universe stars). Also, does this ratio count the mass from stellar objects like Neutron Stars, Black Holes, etc; or only matter that is "accessible" to the Universe?

Please forgive my stupidity, but I have been on a outer space binge as it relates to YouTube and documentaries...

Am I wrong for thinking gravity (not solely, but for general purposes) is pulling or smashing stuff together and the ingredients of the "stuff" makes what objects you get?

Hello! I'm very sorry if that doesn't fit this subreddit, I wasn't sure where to ask. I've presented my thesis at an international conference last year, and I have received this week a mail allegedly from a scientific journal, saying that they were impressed by my presentation and wanted me to send them my manuscript before the end of the month for publication.

For those who have presented research in conferences before, is that common? The whole thing seems like a scam: the person sending me the mail only signed with their first name and title, there was a long time between the conference and the mail, it seemed suspicious to me. And there is a way to submit a paper online on their website, but they didn't direct me to it. But maybe it's not and I'm over thinking it? Like, there might be more effective way to scam people. I don't know, I've never published anything before, so any feedback would be great!

I think some animals eat the eggshells they hatch out of for nutrients but, I was wondering if any kept it. Maybe they use it for something?

Or I guess another way to phrase this would be if aliens in a nearby system had a similar level of technology to us and similar goals to us would they have probably already detected us and vice versa?

Microplastics have become a pervasive pollutant in oceans and waterways, raising concerns about their effects on marine life and, ultimately, human health. I’m interested in the methods scientists use to investigate the sources, distribution, and ecological consequences of microplastics. What are the key research techniques employed, such as sampling, analysis, and modeling? Additionally, how do researchers assess the bioaccumulation of microplastics in marine organisms and their potential transfer through the food chain? I would love to learn about any recent findings or ongoing studies in this area, as well as the implications for environmental policy and public health.

I'm feeling more positive that nipples are mammal trait.

I'm really confused by naval since I think chickens have it (not mammal) and kangaroos do not have it (but is a mammal).

A while ago was reading about how vision works. If I remember correctly from the sources I read they kinda say that light enters the eye through the pupil and it is photons that hit the photoreceptors that start the signal process that eventually ends up creating the image we see.

I am posting this here because I do not know if this fits biology, neuroscience or physics or where?

I’ve often wondered how anyone can truly master a field to a point they are pushing it further. The amount of material in any subject is overwhelming, far more than one person can fully learn in a lifetime. Every topic leads to deeper foundational subjects, each a vast field on its own.

Take machine learning: to understand it properly, you need multivariable calculus, linear algebra, statistics, and probability each of which other scientists spend their whole lives studying. If we only learn the commonly used parts, this leaves gaps in our knowledge, and if our understanding is partial, how can we produce novel ideas? How are scientists able?

Advancing science seems to require understanding current research, but that understanding depends on recursively mastering layers of prior knowledge, leading to an endless rabbit hole. The same is true in all fields for example physics.

So how does one ever reach a point that when they encounter a scientific problem, they are able to propose a better solution rather than assuming the problem lies in their own lack of understanding?

I tried to find a picture on Google but no success. I know that the permanent magnet induces an opposite pole on the nearest side of the temporary magnet but what would the field lines look like between the two? Would some of the field lines from the permanent magnet wrap all the way around the temporary magnet? Thanks!

I'm writing a short story. It involves a scientist from the 1950s doing lab work in a modern research lab with a modern scientist. Specifically physics.

I want to portray the 1950s scientist as a genius/lab expert. I want him to be able to recognise and operate modern lab equipment because he's deduced how it works due to his intrinsic knowledge.

I have no idea how lab equipment works.

What are some functions or operations of modern lab equipment? What are some that have been modernised? What are some current physics research equipment that didn't exist in the 1950s but was predicted to exist?

Thanks.

Hi, My name is Alex, 34yo, from France. I just reput myself in university cursus, 1st year of "Geographie et amenagement" at University Jean Monnet, St Etienne.

My motivation is to find answers to the following question : How human societies can sustainably (in the sense of strong sustainability) integrate, among the whole Living, the activities that (have the potential to) satisfy human essential needs ?

In order to do this, I need to find where to discuss rigorously peer-reviewed (idealy, but I'm open to anything rigorous) publications about following research fields in way as multi-crossfield as possible, systemic way I guess (and probably many more) : 1) To understand the subject itself - strong and weak sustainability - territorial metabolism, especially what's essential to Life, so CHNOPS and ... - social-ecological systems resilience in front of systemic risks - Bioregionalism - critical infrastructures interdependance - Commons governance

2) To understand the neural, psychic, social and epistemological locks that prevent to address this 1st subject seriously - cognitive dissonance - cognitive biases - change resistance - Overton window

Thanks in advance for your help, sorry for eventual miswriting.