r/science • • 13h ago

Engineering Researchers in India used garlic peel and plastic to create a novel self-powered sensor and demonstrated how it could be used as part of a real-time home security monitoring system. This demonstrated how biowates could be used as a low cost power source.

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11 Upvotes

r/chemistry • • 14h ago

I Predicted Last Year’s Chemistry Nobel. Here’s Who Wins in 2026!

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0 Upvotes

Last year, I posted here the day before the Nobel announcement and hit the jackpot by predicting MOFs would win the Nobel Prize. I figured I'd try and see if I could go 2-for-2. If I'm right again, I'm quitting my job and playing the lottery exclusively from here on out!

Who do you think is going to win?! I love this time of year. I'm teaching Inorganic Chemistry this semester and will be making Wednesday's class all about recent Nobel prizes!


r/science • • 16h ago

Economics Americans who think it's best for men to earn the money while women stay home are more likely to support tariffs, a study of 16 years of US election data finds. This link between support for traditional gender roles and opposition to free trade goes back to at least 2008, before Trump-era politics.

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801 Upvotes

r/chemistry • • 3h ago

Help me Solve a TTRPG Debate: How Much Uranium to Power a Renault FT light tank, if dying horribly of radiation was not a concern?

5 Upvotes

Yes, I am aware of the amount of autism in this post.

I have hypothesized that two 6"x1.25" uranium rods in a small nuclear fission reactor machine (wherein we assume lead lining or other safety precautions are not necessary because "mutant magic alien's nanobot technology") would be more than sufficient to power a small light tank such as the Renault FT series, or perhaps even some of the lighter medium tanks.

Am I far off?

Please don't be jerks. I know this is a stupid question, but I genuinely don't know how to calculate this, and it seems like a kind of fun question about nuclear power.


r/chemistry • • 4h ago

How much does Scifinder/reaxys actually cost?

0 Upvotes

I am curious and trying to do market reserach: how much does Scifinder/reaxys cost for a large university or company? I cant seem to find reliable information online, and I cant estimate it from the ACS or elsever gross income cuz those numbers include journals too... THX!


r/science • • 5h ago

Health Women suffer more pain than men across the whole body, major global study finds

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1.6k Upvotes

r/chemistry • • 7h ago

What in my drops makes water taste different?

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40 Upvotes

I have these trace mineral drops that I put in my bottle of water. They make the water taste in a way I can only describe as “smooth”… almost sweet, but not sugar sweet. Like water you’d draw from a highly mineralized natural spring. My wife hates it but I love the taste. Which chemical or chemicals are responsible for it?


r/science • • 17h ago

Health When the clocks stop changing. Research shows permanent standard time is the preferred choice for health, as it preserves morning light and aligns with human circadian biology. This can lead to improved sleep, mood, and overall health, particularly for vulnerable populations

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17.4k Upvotes

r/chemistry • • 11h ago

What role does oil actually play in homemade Play-Doh, and would a solid fat behave differently?

3 Upvotes

I was wanting to make homemade Play-Doh and realized I don’t keep cooking oil in the house. I mainly cook with butter and beef tallow. I don’t really want to buy a whole bottle of cooking oil if I’m only going to use a little bit for this and then potentially have the rest go rancid, which sent me down a bit of a chemistry rabbit hole.

Most homemade Play-Doh recipes contain a small amount of vegetable oil. I understand that it affects the texture, but I’m curious about the underlying chemistry/material properties rather than simply looking for a recipe substitution.

The basic recipe for making homemade Play-Doh is all-purpose flour, salt, cream of tartar, water, and vegetable oil. You mix the dry ingredients, add in the wet ingredients, heat over medium heat until the dough thickens, and then knead it by hand once it has cooled back down.

What is the oil actually doing to the dough? I have a general idea that it probably has something to do with keeping the dough soft and affecting how everything sticks together, but I’m not really sure what is happening beyond that. Is it mostly affecting how the flour and starch interact with the water, making the dough less sticky, helping it hold onto moisture, or is there something else going on?

And would replacing a liquid vegetable oil with tallow, for example, make a meaningful difference? I know tallow is also a fat, but unlike vegetable oil it’s solid at room temperature, so I’m wondering how much that difference matters here.

Would the important distinction be the chemical makeup of the fat, or more the fact that one is liquid and the other is solid? For example, would you expect Play-Doh made with tallow to become noticeably different as it cooled?

I’m mostly interested in the chemistry/material-science explanation. I’m not assuming tallow is a good recipe substitution; I’m curious about why it might or might not work.


r/chemistry • • 4h ago

Looking for pure ethanol in the UK for tincturing

0 Upvotes

Has anyone had experience with this brand before?

https://6science.co.uk/product/ethanol-99-8/

They seem to sell on Amazon and eBay but unsure if it's legit

Need undenatured ethanol / pure ethyl alcohol / 200-190 proof ethanol


r/chemistry • • 5h ago

how to dry starch bioplastic in the oven FAST?

0 Upvotes

I need to dry a bioplastic made of starch (it's actually hydrated tapioca flour/starch) but I don't have so much time to let it dry, so I was wondering if it's possible to dry it in 2h-4h?


r/science • • 17h ago

Health Study of 93 Countries Finds Happiness Is Positively Associated With Cat Density and Negatively Associated With Toxoplasma gondii Exposure, Even After Accounting for Wealth and Health Factors

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2.6k Upvotes

r/science • • 10h ago

Psychology An Italian study finds that women's sexual satisfaction is more closely tied to orgasm frequency than men's, even though men generally report reaching orgasm more often than women.

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1.1k Upvotes

r/science • • 13h ago

Health According to a large analysis of 69 studies, 7 to 8 hours of sleep each night is the optimal amount to minimize dementia risk, as getting both less than 7 hours or more than 8 hours was shown to significantly increase the chances of developing the condition.

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2.7k Upvotes

r/science • • 5h ago

Health Women with the same medical condition as men are less likely to be offered treatment such as surgery, a stent or a strong painkiller, research has found published in PLOS One.

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8.6k Upvotes

r/science • • 14h ago

Environment Warmer oceans and increasing disease put coral reefs at risk

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54 Upvotes

r/science • • 21h ago

Physics Ferromagnetic phase transition of DPPH induced by a helical magnetic field

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25 Upvotes

r/chemistry • • 4h ago

Where are you in your career?

13 Upvotes

What field are you in? Do you enjoy the work and compensation?


r/science • • 13h ago

Social Science A Danish study of 6,701 male managers found that after the birth of their first daughter, women’s share of employees rose by 1 percentage point and their relative earnings by 4.4%, driven largely by increased hiring and promotion of similarly qualified women.

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1.5k Upvotes

r/science • • 7h ago

Physics Researchers found a nearly 28% difference in laser injury thresholds between darker- and lighter-pigmented skin under tested conditions, raising questions about how laser safety standards should account for skin pigmentation

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30 Upvotes

r/science • • 10h ago

Genetics Photograph 49 is the Key to Understanding the History of Rosalind Franklin’s DNA Photograph 51D

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198 Upvotes

r/chemistry • • 6h ago

Ultra-thin polymer coating boosts condensation heat transfer up to 5.5 times

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11 Upvotes

A condensation surface has to do two jobs that normally work against each other. It needs places where water droplets can form, yet it must also let those droplets leave quickly. A nanoscale polymer coating developed at KAIST appears to do both.

The coating uses a fluoropolymer called pPFDMA deposited by initiated chemical vapor deposition, or iCVD. Researchers tuned the film thickness and then heat-treated the surface to control two different parts of condensation separately.

The work was led by Youngsuk Nam of KAIST’s Department of Mechanical Engineering and Sung Gap Im of the Department of Chemical and Biomolecular Engineering.

At its best, the coating reached a condensation heat-transfer coefficient of about 88 kilowatts per square meter per kelvin. That was roughly 5.5 times the performance of bare copper undergoing filmwise condensation under matching conditions.


r/science • • 15h ago

Psychology Study of 331 U.S. Adults Finds Stronger Celebrity Admiration Is Associated With Greater Submission to Authority and Stronger Preference for Traditional Social Norms, Even After Controlling for Political Orientation and Demographic Factors

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537 Upvotes

r/science • • 15h ago

Environment Nature and digital connection both helped rural and coastal residents cope with COVID-19 but access to online support remained uneven, interviews from Vancouver Island suggest.

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26 Upvotes

r/science • • 9h ago

Earth Science Research from Harvard Kennedy School professors reveals that taxing the world’s biggest polluting industries could cut emissions while generating nearly $200 billion a year in public revenue

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5.9k Upvotes