The hottest Science Substack posts right now

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Space Debris: the Global Flagship Conference Takeaways from Saudi Arabia

Space Ambition • 159 implied HN points • 23 Feb 24
🔬 Science Space Exploration Technology development Environmental Policy International cooperation Sustainability
  1. The recent Space Debris Conference in Saudi Arabia gathered over 50 countries to discuss the growing issue of space debris. This problem arises from the increasing number of satellites and other objects in Earth's orbit.
  2. Experts stressed the need for global cooperation and innovative technologies to tackle space debris. They highlighted that ignoring this issue could lead to serious threats for future space missions and satellites.
  3. Saudi Arabia is taking a proactive role in addressing space debris, signing agreements with key organizations to enhance tracking and safety measures. Their commitment shows a strong dedication to ensuring safe and sustainable space exploration.

A new chapter on generalization

Mindful Modeler • 99 implied HN points • 16 Apr 24
🔬 Science Machine Learning Generalization Statistics Interpretability Data Analysis
  1. Many COVID-19 classification models based on X-ray images during the pandemic were found to be ineffective due to various issues like overfitting and bias.
  2. Generalization in machine learning goes beyond just low test errors and involves understanding real-world complexities and data-generating processes.
  3. Generalization of insights from machine learning models to real-world phenomena and populations is a challenging process that requires careful consideration and assumptions.

Cracking biological emergence with mechanistic interpretability

Trevor Klee’s Newsletter • 597 implied HN points • 26 Nov 24
🔬 Science Biology Emergence Deep Learning
  1. Emergent properties in biology can be hard to connect, kind of like trying to understand a car by randomly taking it apart. Even as we learn about proteins and genes, connecting them to actual biological traits remains a challenge.
  2. Deep learning models like Alpha Fold are changing the game by revealing connections between micro and macro biological features, even if we don't fully understand how they do it. It's like having a model that can assemble a car based on its parts without exactly knowing how all those parts work together.
  3. Recently, there's been exciting work in mechanistic interpretability, which helps us understand how these deep learning models make sense of biology. This could lead to new insights and even virtual experiments that help us learn about cell behavior and gene interactions.

Who should be the first to set foot on the Moon?

Europe in Space • 196 implied HN points • 24 Jan 24
🔬 Science Space Exploration
  1. European Astronaut Corps was formed in 2002 to centralize astronaut efforts from various European countries.
  2. ESA recruited a new class of astronauts in 2021, including career astronauts and reserve astronauts with a unique designation.
  3. Countries like the UK, Poland, and Sweden have accepted offers from Axiom Space for commercial spaceflights, while ESA manages and promotes crewed missions to the ISS.
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2.7 Summary and Conclusions

Fields & Energy • 159 implied HN points • 21 Feb 24
🔬 Science Physics History Philosophy Methodology Empiricism
  1. Scientists should consider multiple models to explain natural phenomena and not cling to a single theory. Even if an old idea isn't widely accepted anymore, it could still hold value.
  2. Inductive reasoning, based on observations, and deductive reasoning, based on theories, are both vital in scientific discovery. They work together to help us understand the world better.
  3. Our understanding of science evolves over time, with new ideas replacing or revisiting old ones. It's essential to stay open-minded and not assume today's beliefs are the ultimate truth.

My White Whale

Eat Shit and Prosper • 359 implied HN points • 06 Oct 23
🔬 Science Microbiology Health Longevity Nutrition Research
  1. Centenarians tend to have unique gut bacteria that could be linked to their long lives. This suggests that what we have in our gut might play a big role in our health.
  2. Certain types of bacteria, particularly a genus called Bacteroides, are important for a strong immune system and may help fight cancer.
  3. One surprising finding is that a specific bacterium called Epulopiscium is found more often in the guts of centenarians, hinting it could be connected to their longevity.

The Social Network (Part 1)

Logging the World • 358 implied HN points • 10 Apr 23
🔬 Science Social Networks Interactions Connectivity
  1. Networks can be represented by vertices (dots) and edges (lines connecting dots) to show relationships, such as friendships.
  2. The size of the largest connected component in a network is important for social media networks to prevent isolation and promote the spread of ideas.
  3. There is a critical level of interaction for social networks, above and below which functionality can dramatically change, impacting how ideas flow and network connectivity.

Tessier-Lavigne resignation shows that running a lab is a full-time job

Science Forever • 358 implied HN points • 19 Jul 23
🔬 Science Research
  1. Running a research laboratory is a full-time job that requires undivided attention.
  2. Principal investigators should not try to balance a high-profile administrative role with running a lab, as it can lead to issues.
  3. University search committees should address the issue by inquiring about the PI's plan to manage both the lab and other responsibilities.

It matters who does science

Science Forever • 358 implied HN points • 11 May 23
🔬 Science Research Identity Bias Diversity
  1. Scientific research is a collaborative and iterative process involving diverse perspectives, not just individual 'Eureka' moments.
  2. Acknowledging the human element in science, including errors, helps build public trust and improve the scientific process.
  3. Diverse backgrounds and identities among scientists lead to more robust research outcomes, faster consensus building, and fairer implications for all.

How To 'See' The World Like Daredevil

Everything Is Amazing • 610 implied HN points • 12 Nov 24
🔬 Science Biology Research Psychology Environment Technology
  1. Some recent science suggests that it's possible for people to see the world in a unique way, similar to characters like Daredevil. It hints at untapped human abilities that we might not even know we have.
  2. There is a fascinating tree in Utah called Pando, which is actually one single tree made up of many clones. It's estimated to be between 16,000 and 80,000 years old, making it one of the oldest living organisms on Earth.
  3. It's important to focus on positive stories and support the art and media that inspire us. Finding and sharing things we love can help create a better world.

Natural selection: what's the effect size?

Wyclif's Dust • 2414 implied HN points • 07 Apr 23
🔬 Science Genetics Evolution Statistics
  1. Many polygenic scores are significantly correlated with the number of children a person has, indicating a link between genetics and fertility.
  2. The effect sizes of these correlations can be influenced by the accuracy of the polygenic scores, with noise potentially underestimating the true effects.
  3. Improving polygenic scores and considering the impact of rare genetic variants are important for better understanding the relationship between genetics, fertility, and education.

Scientific celebrity has its dangers

Science Forever • 338 implied HN points • 15 Oct 23
🔬 Science Communication Public Perception
  1. Scientific figures communicating with the public are essential, but crossing over into mainstream celebrity can make critics undermine the scientific process.
  2. History shows the dangers of overselling research prematurely, especially when mixed with personal fame, which can provide ammunition to those seeking to undermine science.
  3. The importance of scientists communicating with wide audiences while also maintaining humility and acknowledging the uncertainties in science as a process.

The Moon exploration: the past and the future

Space Ambition • 1099 implied HN points • 16 Sep 22
🔬 Science Space Exploration Technology development Astrobiology Resource Management
  1. The Moon has many resources, like water ice and minerals, that could help support life and reduce our reliance on Earth. This could be a big deal for future space missions.
  2. There are lots of new companies working on lunar projects, like transportation and communication for a Moon base. A lot of exciting developments are happening in the lunar economy right now.
  3. Plans for Moon exploration are moving forward, with crewed missions set for 2024 and a permanent base by 2030. Many countries and companies are joining forces to make this a reality.

⚛️🌟 Our fusion future: A Quick Q&A with … nuclear engineer Michael Ford

Faster, Please! • 456 implied HN points • 21 Jan 25
🔬 Science Energy Engineering Physics Technology Research
  1. Fusion energy has great potential and is seen as safer than fission because it doesn't have the same risks of catastrophic accidents.
  2. Many companies are investing in fusion technology, which is leading to a quicker development pace than in the past.
  3. Public perception and understanding of fusion will be important for its acceptance and can affect the costs and deployment of fusion power systems.

What awe feels like

Cozy Philosophy • 99 implied HN points • 09 Apr 24
🔬 Science Astronomy
  1. Experiencing a total solar eclipse is a mindblowing and awe-inspiring event, worth witnessing at least once in a lifetime.
  2. Total solar eclipses are rare events that occur about every 400 years in a specific location but can be seen more frequently if you're willing to travel.
  3. The experience of a total eclipse is surreal and powerful, temporarily shifting focus from earthly concerns to the vastness and mystery of the universe.

The Magnet 75

The Magnet • 334 implied HN points • 21 Feb 23
🔬 Science UFOs Cognitive Biases Advertising
  1. The U.S. has shot down 4 unidentified aerial objects recently.
  2. Baader-Meinhof phenomenon involves suddenly noticing something more often after learning about it.
  3. Pitted Windshield Panic of 1954 was caused by normal driving conditions, not cosmic threats.

Are AlphaFold's new results a miracle or a mirage?

Oleg’s Substack • 37 HN points • 24 Jun 24
🔬 Science Research Data Analysis Machine Learning Proteins
  1. AlphaFold 3 can predict how drug-like molecules bind to proteins better than existing programs without needing a 3D structure of the target.
  2. Data redundancy in scientific datasets can impact the performance and interpretation of machine learning models.
  3. AlphaFold 3's occasional missed obvious insights, like atoms overlapping, raises questions about its learning methods and performance.

Spirit Whales and Sloth Tales

Street Smart Naturalist: Explorations of the Urban Kind • 299 implied HN points • 26 Oct 23
🔬 Science Paleontology Geology Ecology History Education
  1. The book 'Spirit Whales and Sloth Tales' explores the rich fossil history of Washington State, showcasing a vast timeline of plants and animals that lived there over hundreds of millions of years.
  2. It features twenty-four profiles that connect specific fossils with their geological and human history, making the science behind them more engaging and accessible.
  3. The authors include beautiful fossil photos and aim to deepen readers' appreciation for the paleontology and geology of Washington State through these stories.

Nature to the North

Street Smart Naturalist: Explorations of the Urban Kind • 359 implied HN points • 27 Jul 23
🔬 Science Biology Ecology Wildlife Conservation Environmental
  1. Seeing hundreds of bald eagles feeding at once is a spectacular sight. They gather to feast on fish when conditions are just right.
  2. Some tree stumps can stay alive and continue to grow even after being cut down. This shows how interconnected nature can be through shared resources.
  3. Sea stars, which faced a severe disease, are now showing signs of recovery. Those that survived may pass on stronger genes to help their species adapt.

Amadee-24 Chronicles: Mars on Earth - How Do We Prepare for a Mars Mission?

Space Ambition • 79 implied HN points • 26 Apr 24
🔬 Science Space Exploration Astrobiology Robotics Artificial Intelligence Human factors
  1. Analog missions help us practice for going to Mars by simulating life on other planets. These missions are done on Earth to learn about the challenges astronauts might face.
  2. Communication on missions to Mars is tricky because it takes about 10 minutes for messages to travel. This makes astronauts more independent and affects their mental state during the journey.
  3. People can join analog missions to gain experience and be part of the preparation for Mars. These missions are exciting and beneficial for anyone interested in space exploration.

Interesting reads, November 2024 edition

Brain Pizza • 529 implied HN points • 19 Nov 24
🔬 Science Health Technology Psychology Environment Society
  1. The new 'Collective Minds' lab focuses on understanding how we think as a group. It's an interesting place to explore collective thought.
  2. Smartphones are often blamed for many problems in the world, but there might be other factors contributing to these issues.
  3. There's ongoing research about how our brain reacts to stories while watching movies. It's cool to see how our thoughts are tied to brain activity.

Prospective Memory and UX

UX Psychology • 317 implied HN points • 04 May 23
🔬 Science Cognitive Psychology UX Design Human behavior Research
  1. Prospective memory is the ability to remember to do something in the future. It's crucial for daily tasks like attending meetings or taking medication.
  2. There are two main types of prospective memory: event-based (triggered by cues) and time-based (triggered by specific times). Distractions or cognitive load can lead to failures in remembering to do a task at the right time.
  3. Designing interfaces with visual cues, gamification, habit formation, contextual design, and cognitive offloading can improve users' prospective memory performance and create more engaging experiences.

The Fusion Energy Landscape

Ulysses • 359 implied HN points • 05 Apr 23
🔬 Science Energy Physics Technology Research Funding
  1. Fusion energy promises clean, pollution-free energy that can be built anywhere and lasts millions of years without geopolitical disputes over fuel reserves.
  2. Different fusion technologies like magnetic confinement, inertial confinement, and magneto-inertial confinement offer diverse approaches to achieving fusion reactions with varying benefits and challenges.
  3. Developing fusion energy requires extensive funding, traditional engineering solutions, and expertise underscoring a journey to harness limitless energy potential.

The AI basis of the Eve Theory of Consciousness

Vectors of Mind • 314 implied HN points • 07 Jun 23
🔬 Science Evolution Psychology Mythology Language Personality
  1. The Eve Theory of Consciousness suggests self-awareness was discovered by women and spread memetically.
  2. Personality structure can be understood using language models to determine latent factors related to important traits.
  3. Gossip and social selection played a role in shaping personality traits like considerateness and tolerance.

The Solar Buildout

Syncretica • 314 implied HN points • 25 Sep 23
🔬 Science Solar energy Renewables Energy Policy
  1. Building solar power in regions with high sun hours is more economical and efficient.
  2. Solar power can be strategically placed based on demand, like in coastal regions with high air conditioning demand.
  3. Transitioning to solar power impacts traditional energy sources like gas and coal, potentially leading to energy independence.

The Y Chromosome Bottleneck

Vectors of Mind • 314 implied HN points • 29 May 23
🔬 Science Genetics Evolution Human behavior Anthropology Selection
  1. Men and women think differently, and there may have been a moment in history where men had to 'catch up' on self-awareness and language.
  2. Recent genetic research suggests a bottleneck on the Y chromosome, indicating possible massive selection in the recent past.
  3. The Y chromosome bottleneck coincided with cultural changes and patrilineal competition, shedding light on human male demographic history.

What a COVID-19 Food Fight Says About Scientific Discourse

The Honest Broker Newsletter • 1089 implied HN points • 18 Mar 24
🔬 Science Discourse Partisanship Debate Journalism COVID-19
  1. One strategy in science partisanship is to associate opponents with unpopular political figures to discredit their views without engaging with the substance.
  2. Another strategy is to argue that certain debates are harmful to scientific goals, leading to avoiding critique that might impact funding or research opportunities.
  3. Partisanship in science can also involve associating legitimate arguments with totally unacceptable views, like labeling individuals with terms that discredit their opinions.

1.5 The Paradigm Shift to a New Model

Fields & Energy • 239 implied HN points • 29 Nov 23
🔬 Science Physics Education Cognition Models Innovation
  1. People often prefer sticking to familiar ideas instead of embracing new ones, which can create mental barriers to understanding change. To overcome this, simplifying complex concepts is important.
  2. Models are tools we use to understand the world around us. Having multiple models allows us to tackle problems from different angles, making us better problem solvers.
  3. Understanding basic principles in science can help anyone grasp more complex ideas without needing extensive knowledge. For example, knowing atoms make up everything can help explain many scientific concepts.

Why wasn't preservation with the goal of potential future revival started earlier in history?

Neurobiology Notes • 176 implied HN points • 16 Jan 24
🔬 Science Biology Technology History Neuroscience Cryonics
  1. Despite preservation with the goal of future revival not being proposed for most of human history, in 1962, Evan Cooper and Robert Ettinger independently introduced the concept of cryonics.
  2. Factors influencing the delay in proposing preservation with future revival include a need for optimism in technological progress, willingness to take risks, and advances in preservation technology.
  3. Other possible reasons for the delayed start include societal restrictions, advancements in information theory, and the idea that preservation does not need to be perfect to be pursued.