- Over a Cup of Coffee
- Posts
- Theory: Black holes spew matter
Theory: Black holes spew matter
Amazonian forest cut for highway for climate conference
Coffee Table Science
March 16, 2025
In partnership with
Welcome to this edition of Over a Cup of Coffee!
Thank you for reading this newsletter diligently every week.
The newsletter now supports comments and likes. If you like something or want to add something to the story, just click to contribute.
We would love to hear your thoughts.
Before, we head to the newsletter, a word from this week’s sponsors.
Join over 4 million Americans who start their day with 1440 – your daily digest for unbiased, fact-centric news. From politics to sports, we cover it all by analyzing over 100 sources. Our concise, 5-minute read lands in your inbox each morning at no cost. Experience news without the noise; let 1440 help you make up your own mind. Sign up now and invite your friends and family to be part of the informed.
In this newsletter
Venting ineffective for anger; study finds better solutions
Despite the widespread belief that expressing anger helps, this 'pressure cooker' analogy is inaccurate. Analyzing 154 studies, Ohio State University researchers concluded that venting does not alleviate anger, and can potentially amplify it. With 10,189 participants of various backgrounds, the studies indicated that lowering physiological arousal is the central factor in effectively managing anger, regardless of its source.
The phenomenon of 'rage rooms,' where customers pay to smash items to vent anger, contributed to the impetus for this research. The team constructed their research review based on the Schachter-Singer two-factor theory, which states that emotions are made up of both physiological and cognitive parts.
Researchers advise calming over venting for anger control using simple techniques like taking a break or counting, as the optimal approach to controlling anger. Reflection enables us to explore the origins of our anger, address contributing factors, and validate our emotions, all of which are vital for healthy emotional management.
The insights were published in Clinical Psychology Review.
Amazonian forest cut for highway for climate conference
Ahead of COP30 in Belém, Pará, satellite images reveal the apparent construction of Avenida Liberdade, a new highway cutting through the Amazon rainforest. Copernicus satellite data from October 2023 and 2024 shows a cleared road surrounded by thick forest.
As stated on the Pará regional government website, Avenida Liberdade is projected to be around 8.2 miles in length, with two lanes in either direction. This highway will join two existing road systems and provide a new entry and exit for the Belém Metropolitan Region.
The Avenida Liberdade highway is intended to reduce traffic during COP30, which will see approximately 50,000 delegates. They will travel through Belém, a port city at the mouth of the Amazon, and will host the conference from November 10 to 21.
The findings were published by the BBC.
Dear readers,
Coffee Table Science is run by a small team of science enthusiasts who are passionate about sharing interesting science.
We DO NOT make any profits from this newsletter or our Instagram page. But there are costs to running this project. Sending this newsletter alone costs us over $50 a month.
If you enjoy reading this newsletter, consider supporting it and keeping the light bulb on.
or you can also support us by clicking this ad.
These cannabis gummies keep selling out
Just 1 can get you feeling right within 5 minutes! Get 20% off your order.
Theory: Black holes spew matter
A new theoretical paper suggests white holes could form through a quantum 'bounce' within black holes, expelling both matter and time. There might be a possibility that it's theoretically possible for a hypothetical observer to journey through a black hole, pass the singularity, and appear on the other side as a white hole.
As of now, there's no proof of white holes existing in the Universe. But researchers have shown that a black hole can transition into a white hole. The researchers utilized a planar black hole model, situated in anti-de Sitter space—a warped representation of our Universe—as the basis for their calculations.
Researchers concluded that the black hole's heart, contrary to being a singularity, is a space where large quantum fluctuations, meaning energy variations in space-time, occur. In this framework, a black hole evolves into a white hole, with the singularity and horizons becoming regions of intense quantum fluctuations. Time, rather than vanishing, undergoes a 'bounce', carrying its associated information.
The insights were published in Physical Review Letters.
Short diets can cause obesity
The desire for fast, comforting snacks like chips or chocolate is common after stressful workdays or when rushed. Studies indicate these high-calorie, ultra-processed foods are a major contributor to obesity. Brief exposure to processed food can cause lasting brain insulin issues.
Brain insulin sensitivity, which is crucial for appetite control in healthy people, is compromised by unhealthy fat distribution and weight gain. This leads to insulin resistance in individuals with obesity. Increased fat, particularly belly fat, leads to both obesity and insulin resistance. Fat cells produce substances that impair insulin function.
Participants of an experiment experienced a rapid decrease in brain insulin sensitivity, similar to that of obese individuals, after only five days of consuming an extra 1,500 calories of chocolate and crisps daily. Even after a week of normal eating, brain insulin sensitivity remained reduced, according to MRI scans.
From the experiment the result shown that obesity doesn't purely depend upon poor diet but it also depends on the brain's insulin response plays a significant role. Worldwide obesity has dramatically increased over the last two decades, with no end in sight. This reinforces the idea that obesity is a complex issue involving brain functions, not just dietary and exercise habits.
The insights were published in The Conversation.
If you like this newsletter, you will also like Breefx, which carries interesting facts and insights about the world around us. Sign up today to get their next issue directly in your inbox.
Thanks for reading.
Until next time,
Adya
Reply