The hottest Physics Substack posts right now

And their main takeaways
Category
Top Science Topics

Links for 2024-02-10

Axis of Ordinary • 19 implied HN points • 10 Feb 24
🔬 Science AI Neuroscience Physics
  1. AI advancements are progressing rapidly, with more agents leading to better performance in Language Models.
  2. Neuroscience is evolving with innovations like sensors enhancing sensation in prosthetic limbs and brain control enabled by neural networks.
  3. Physics research reveals insights such as gravity showcasing the strong force in the proton and implications of linearity in quantum mechanics.

(Ad-free Video). A Conversation with Irwin Shapiro: Scientist Extraordinaire from the Earth to the Stars, and at 94, still going strong.

Critical Mass • 8 implied HN points • 16 Mar 24
🔬 Science Physics Biology Research
  1. Irwin Shapiro made a significant discovery related to General Relativity known as the Shapiro Effect, which became the 4th test of the theory.
  2. Despite his age of 94, Irwin Shapiro continues to teach, conduct research, and play tennis, showing remarkable dedication and passion for his work.
  3. Irwin Shapiro is praised for not only his scientific contributions but also his kind and encouraging nature, making him a respected and admired figure in the scientific community.

Calibrating circuits

Only Wonder Knows • 19 implied HN points • 09 Feb 24
🔬 Science Physics Chemistry Engineering Technology Research
  1. Calibration of circuits can be a useful solution but it's important to know when it is necessary and when it's not.
  2. Understanding how components like sensors and resistors behave in different conditions is crucial before considering calibration.
  3. Before deciding to calibrate electronic components, a detailed technical and economic analysis should be conducted to ensure it is a suitable solution.

A review of "Don’t forget the boundary problem..."

Unstabler Ontology • 19 implied HN points • 08 Feb 24
🔬 Science Consciousness Brain Physics Cognitive Science Metaphysics
  1. The article discusses the binding problem in consciousness theories, which is about combining different features into a unified awareness.
  2. Functionalism is challenged by the boundary problem, questioning why there are limits to our conscious experiences.
  3. Electromagnetic theories of consciousness are explored, considering the role of EM fields in demarcating conscious entities and potential solutions using field topology.
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O-Day - Wormhole

Remote View • 216 implied HN points • 09 Mar 23
🔬 Science Physics Archaeology Chemistry Astronomy Materials
  1. The presentation shared experimental evidence about the operation of the Great Pyramid of Giza.
  2. Macro photography gave a first look at the sample and detailed study of the disruption zone.
  3. Speculation was made about the use of iron as a possible fuel, along with other metals, in a related process.

O-Day - Explaining Frank Polifka's Windhexe

Remote View • 216 implied HN points • 30 Mar 23
🔬 Science Technology Physics Engineering Chemistry Biology
  1. A technology called Windhexe can turn various materials into powder, even turning gravel to dust and reducing waste into powder.
  2. The Windhexe device functions by creating a tornado-like vortex in a chamber, causing materials to be smashed and pulverized into tiny particles.
  3. Windhexe technology has been used by different companies for processing food wastes, manufacturing debris, and even for drying materials quickly.

The Economics of Oppenheimer

Some Unpleasant Arithmetic • 7 implied HN points • 18 Mar 24
🔬 Science Physics Economics Innovation Public funding
  1. The Oppenheimer movie explores the economics of science and how political beliefs can impact a career trajectory.
  2. Scientific progress is becoming harder and slower, influenced by factors like declining population growth and changing incentives for scientists.
  3. Cluster areas, like El Alamo for nuclear physics, play a significant role in scientific breakthroughs, showing the importance of collaboration and location in innovation.

Non-Newtonian Computing?

Bzogramming • 30 implied HN points • 07 Jan 24
🕹 Technology Computing Physics Cryptography Algorithms AI
  1. Physics has alternative framings like Lagrangian and Hamiltonian mechanics, which could inspire new ways of viewing computation.
  2. Reversible computing, preserving information by having bijective gates, is crucial for energy efficiency and future computing technologies.
  3. Studying constraint solvers and NP-complete problems can lead to insights for accelerating search algorithms and developing new computing approaches.

O-Day - NOON

Remote View • 157 implied HN points • 14 Feb 23
🔬 Science Physics Technology History Symbolism Archaeology
  1. There is a livestream event on Feb 14, 2023 at 21:00 CET, so review previous materials beforehand.
  2. The post includes a list of references discussing various topics like solitons, plasmoids, and symbols from different cultures.
  3. The content hints at connections between ancient symbols, cosmic powers, and historical artifacts, suggesting deeper meanings or connections.

Quantum Hardware Course!

Quantum Formalism • 99 implied HN points • 04 Aug 23
🔬 Science Quantum Computing Quantum Mechanics Physics Education
  1. Quantum Hardware Course offered by Zaiku Group covers various quantum hardware models like Quantum Optical Models, Ion Traps, Nuclear Magnetic Resonance, and Superconductivity.
  2. Prerequisites for the course include knowledge of quantum mechanics and quantum optics concepts, with references to specific readings.
  3. Enrollment for live sessions and certification in the course require commitment and completion of the entire program by applicants.

1517 Does Astronomy & Astrophysics: The Physics of Supernovas

1517 Fund • 121 implied HN points • 15 Mar 23
🔬 Science Astronomy Astrophysics Physics Technology Energy
  1. Supernovas are powerful explosions from single stars that can outshine entire galaxies, impacting human understanding and progress.
  2. Advancements in astronomy and technology, like robotic telescopes and big data analysis, are revolutionizing our exploration of the universe.
  3. Nature's energy events, like neutron star mergers creating elements, are incredibly powerful and creative, shaping our world and existence.

Possible states the earth can evolve to

Climate Water Project • 117 implied HN points • 27 Apr 23
🔬 Science Climate Ecosystems Physics
  1. There are different stable states that the ecosystem+hydrological system can evolve to, given large enough perturbations.
  2. Vegetation affects the climate and vice versa, leading to different stable states like forests or grasslands.
  3. The earth can have metastable states with ice or more vegetation, flipping between them due to factors like sunlight and noise in the climate system.

Driving fans

Only Wonder Knows • 98 implied HN points • 25 May 23
🔬 Science Physics Engineering Devices Specifications
  1. Understanding basic physics is crucial when dealing with fan systems.
  2. The relationship between air flow and air pressure in fan systems is not always linear.
  3. When selecting a fan for a system, consider factors like power consumption, flow specifications, and current consumption.

Superb Halos

GOOD INTERNET • 13 implied HN points • 17 Jan 24
🔬 Science Optics Meteorology Physics Geography History
  1. Atmospheric ice crystal optics can create superb halos that are visually stunning and fascinating.
  2. Halos are optical phenomena caused by ice crystals in the atmosphere, with different types like the 22° Halo.
  3. Kenneth Libbrecht, known as the "pope of snow crystals," released a monograph explaining the formation of ice crystals and snowflakes.

The Physics of Intelligence

Breaking Smart • 99 implied HN points • 07 Apr 23
🔬 Science Physics AI Intelligence Systems Computation
  1. The physics of intelligence is not substrate dependent, similar to the physics of flight.
  2. The key questions in understanding the physics of intelligence relate to attention, memory, and the relationship between intelligence and information.
  3. Intelligence is not just about computation, but also about embodiment and specific interactions within the universe.

Time in a timeless universe (part 2)

Sam’s Newsletter • 98 implied HN points • 09 Mar 23
🔬 Science Physics Philosophy Quantum
  1. Newton introduced the concept of absolute time, separate from change that physical systems undergo.
  2. Absolute time is an ethereal concept outside our universes, while clock time is a more physical representation of time.
  3. Barbour proposed a theory of time where different 'times' are viewed as different 'worlds' coexisting in a timeless block.

Sorry Folks There Aren't Any Space Aliens

Dilan’s Newsletter • 58 implied HN points • 08 Aug 23
🔬 Science Space Physics Astronomy
  1. Science is not a religion, it relies on observations and experiments for truth
  2. The vastness of the universe and the limits of the speed of light make it highly unlikely for humans to ever come into contact with extraterrestrial intelligence
  3. Despite the fascination with space aliens, there is no scientific evidence supporting their existence or visits to Earth

Chopper amplifiers: history and present

Only Wonder Knows • 19 implied HN points • 15 Dec 23
🔬 Science Electronics Engineering Physics Circuits
  1. Chopper amplifiers are a technique to reduce DC offset and low frequency noise in amplifiers.
  2. Historically, chopper amplifiers have been implemented using innovative methods like optical chopping with cadmium sulfide light-dependent resistors.
  3. Contemporary engineers can refer to Jim Williams' design for an ultrahigh performance instrumentation amplifier that resembles the old chopper amplifier concept.

The Cognitive-Theoretic Model of the Universe: A Partial Summary and Review

Unstabler Ontology • 2 HN points • 27 Mar 24
🔬 Science Physics Computer Science Philosophy
  1. CTMU presents the universe as a self-processing language, enabling a unique perspective on reality.
  2. The theory explores concepts like telic recursion, generalized utility maximization, and syndiffeonesis to understand the universe's organization.
  3. Key principles such as the Telic Principle suggest a link between the universe's structure and the optimization of self-selection parameters.

Links #5

Splitting Infinity • 19 implied HN points • 20 Nov 23
🔬 Science Technology Climate Biology Physics Health
  1. Developing countries like Nigeria and Rwanda are adopting advanced technologies like cryptocurrency and drone networks, showcasing potential for growth.
  2. Innovative solutions like pneumatic canopies for climate control are being considered for equatorial megacities facing heatwaves due to climate change.
  3. Advancements in technology such as gondola systems for cities and improved desalination methods show promise for future urban development and sustainability.

Everything Wrong With: "Illumina: The Measurement Monopoly" Part 4/8

ASeq Newsletter • 14 implied HN points • 10 Dec 23
🔬 Science Biology Chemistry Physics Engineering Technology
  1. The term 'TechBio' may seem superficial, but technology development in biology is complex and involves a mix of disciplines.
  2. The first qPCR machine from 1992 involved intricate instrumentation like photomultiplier tubes and a variety of electronic components.
  3. The development of technology in biology requires navigating complexity and balancing biochemistry and detection techniques to meet market demands.

Double Bubbles

Pershmail • 58 implied HN points • 14 Apr 23
🔬 Science Mathematics Geometry Physics
  1. Double bubbles minimize surface area by using interesting film connections.
  2. For fencing in different areas with minimal material, the double bubble shape is ideal.
  3. The standard double bubble minimizes perimeter between two areas.

Time response of first order systems

Only Wonder Knows • 19 implied HN points • 27 Oct 23
🔬 Science Physics Experiments Measurement
  1. When measuring a system's response time, make sure to wait for at least five time constants to reach a stable state.
  2. First order systems have a unique time response that can be calculated using simple expressions.
  3. Extracting the time constant of a system involves analyzing data, normalizing measurements, and ensuring a good fit to confirm the system's behavior.

Sphericons

Pershmail • 39 implied HN points • 28 Apr 23
🔬 Science Mathematics Geometry Physics
  1. The sphericon is a shape that wobbles when twisted, and it's made of two pieces resembling bicones.
  2. The sphericon has square dimensions and a 90 degree angle from one end extending down.
  3. Generalizations of the sphericon, called polycons, roll in a wobbly way and include shapes like hexacons, octacons, and decacons.

What Eeez a Homeostat?

The Heart Attack Diet • 19 implied HN points • 27 Aug 23
🏥 Health & Wellness Physics
  1. A homeostat keeps something constant by defending a specific state, like a thermostat regulating temperature in a house.
  2. In trying to adjust homeostasis, common solutions like restricting fuel or insulation removal might not work as expected due to the complexity of the system.
  3. Sometimes, a simple adjustment like resetting the thermostat can have a more effective impact on maintaining the desired state.

I still think it's very unlikely we're observing alien aircraft

DYNOMIGHT INTERNET NEWSLETTER • 22 HN points • 14 Jun 23
🔬 Science Astronomy Skepticism Physics Evidence Aliens
  1. Some think there might be alien aircraft on Earth due to the vastness of the universe and numerous reports.
  2. Eyewitness reports of strange aircraft are taken seriously and are difficult to explain.
  3. Old observations suggesting alien aircraft have been debunked, lack of conclusive evidence is a key factor against their existence.