Physical

Cosma / Communication / Knowledge / Realm / Physical

There are some oddities in the perspective with which we see the world. The fact that we live at the bottom of a deep gravity well, on the surface of a gas covered planet going around a nuclear fireball 90 million miles away and think this to be normal is obviously some indication of how skewed our perspective tends to be, but we have done various things over intellectual history to slowly correct some of our misapprehensions. — Douglas Adams

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Introduction¹

Physics (Free Animated Education, YouTube Playlist)
Free Animated Education (Facebook)

Dictionary

Physical : (a) of or relating to physics (b) characterized or produced by the forces and operations of physics (c) having material existence : perceptible especially through the senses and subject to the laws of nature — Merriam-Webster See also OneLook

Realm : kingdom, sphere, domain — Merriam-Webster See also OneLook

Physical Realm : kingdom, sphere, or domain of things that have material existence and are perceptible, especially those things perceptible through the senses and subject to the laws of nature — Mary Hopper

Encyclopedia

Physical universe or “material universe” is terminology used to distinguish the physical matter of the universe from a spiritual or supernatural essence. — Wikipedia

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Adventures

Explore related posts on Cosma …

Exoplanet Junket - This week NASA released a new project that they’ve dubbed the Exoplanet Travel Bureau. The core of the project consists of a set of interactive 360° images that show “imagined” surfaces of five exoplanets (TRAPPIST-1e, Kepler-16b, Kepler-186f, PSO J318.5-22 and HD 40307 g). Here are three articles about the experience. This Brilliant Interactive From NASA … Continue reading Exoplanet Junket
Great Views of Earth - April 22nd is Earth Day! In honor of that, here are some great ways to see the honoree. First, you can get a nice view from this neat 360° Video from Seeker. It essentially shows you what it would feel like if you could just fly straight up and see the Earth from space. Seeker … Continue reading Great Views of Earth
Moon’scapes - There’s no denying that it’s been a rough week for many Earthlings. On the other hand, it’s been a great week for anyone who spends their time more preoccupied with the Moon than with more earthly concerns. That’s because there’s a treasure trove of news about our lunar realm. For example, NASA’s Goddard Media Studios … Continue reading Moon’scapes
Perspectives on Earth - Last week NASA released this fascinating video entitled Our Living Planet based upon 20 years of data from satellites that observe all plant life at the surface of the land and ocean. NASA Goddard (YouTube Channel) Goddard Space Flight Center (Official Website) You can find out more about the video from this article. The Changing … Continue reading Perspectives on Earth
September is Corny! - Have you ever noticed that most months tend to be associated with certain adjectives. October is spooky, December is festive, and so on … I think of September as corny! One obvious reason for this is because it’s when corn is harvested and readily available. Another reason is because September is usually the month of … Continue reading September is Corny!
Space Cadet Academy - Confession — I’m a major space cadet! I mean this in an older, positive sense of the word, which is that I’m a “space enthusiast.” That’s why I really get into updating the pages on Cosma having to do with space. Things got a little out of hand this time, though. I began just like … Continue reading Space Cadet Academy
Touch the Sun - Remember how Icarus wanted to touch the Sun, but met his demise instead? Well, scientists at NASA wanted to touch the Sun too, but unlike Icarus, they succeeded! Better yet, they are beginning to share what they learned by doing it! Before we get into all of that, let’s go back and start at the … Continue reading Touch the Sun
TRAPPIST-1 - You’ve probably heard that NASA has found a trove of “Earth-like” planets circling the TRAPPIST-1 system roughly 40 light years away, but just in case you haven’t, here’s a short video from NASA/JPL about the discovery. NASA Jet Propulsion Laboratory (YouTube Channel) NASA Jet Propulsion Laboratory (Official Website) Most entertainingly, here’s a 360° YouTube video … Continue reading TRAPPIST-1
Umbraphiles - umbraphile : One who loves eclipses, often travelling to see them. You’ve probably heard about the April 8th solar eclipse (Wikipedia), and if you live near the path of totality, then you’ve probably also seen news stories like this one. Party in the Path of Totality at These Solar Eclipse Getaways Across New England (Kristi … Continue reading Umbraphiles

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Inspiration²

3 Physics Experiments that Changed the World (SciShow, YouTube Video)
The (Arguably) Most Important Instrument in Physics (SciShow, YouTube Video)

Talks about the Physical Universe (TED: Ideas Worth Spreading)
Articles about the Physical Universe (Big Think)

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Innovation

In our time, there has been unloosed a cataclysm which has swept away space, time, and matter hitherto regarded as the firmest pillars of natural science, but only to make place for a view of things of wider scope, and entailing a deeper vision. — Hermann Weyl, Space, Time, Matter

Science

Physics is the science that studies matter, its fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. Physics is one of the most fundamental scientific disciplines, with its goal being to understand how the universe behaves. — Wikipedia

Physics (Encyclopædia Britannica)
Physics Portal (Encyclopædia Britannica)

Outline of Physical Science (Wikipedia)
Outline of Physics (Wikipedia)

Eric Weisstein’s World of Physics (ScienceWorld, Wolfram Research)
Physical Effects (Wolfram Alpha)

Classical physics is a group of theories that predate more modern and complete theories. Classical physical concepts are often used when modern theories are unnecessarily complex for a particular situation. Most often classical physics refers to pre-1900 physics, while modern physics refers to post-1900 physics which incorporates elements of quantum mechanics and relativity. Classical physics is typically concerned with everyday conditions: speeds are much lower than the speed of light, sizes are much greater than that of atoms, and energies are relatively small. — Wikipedia

The matter which we suppose to be the main constituent of the universe is built out of small self-contained building-blocks, the chemical atoms. It cannot be repeated too often that the word “atom” is nowadays detached from any of the old philosophical speculations: we know precisely that the atoms with which we are dealing are in no sense the simplest conceivable components of the universe. On the contrary, a number of phenomena, especially in the area of spectroscopy, lead to the conclusion that atoms are very complicated structures. So far as modern science is concerned, we have to abandon completely the idea that by going into the realm of the small we shall reach the ultimate foundation of the universe. I believe we can abandon this idea without any regret. The universe is infinite in all directions, not only above us in the large but also below us in the small. If we start from our human scale of existence and explore the content of the universe further and further, we finally arrive, both in the large and in the small, at misty distances where first our senses and then even our concepts fail us. — Emil Wiechert

Modern physics is concerned with extreme conditions, such as high velocities that are comparable to the speed of light (special relativity), small distances comparable to the atomic radius (quantum mechanics), and very high energies (relativity). Quantum and relativistic effects are believed to exist across all scales, although these effects may be very small at human scale. Quantum mechanical effects tend to appear when dealing with “lows” (low temperatures, small distances), while relativistic effects tend to appear when dealing with “highs” (high velocities, large distances), the “middles” being classical behavior.
Very often, it is possible to find – or “retrieve” – the classical behavior from the modern description by analyzing the modern description at low speeds and large distances (by taking a limit, or by making an approximation). When doing so, the result is called the classical limit. — Wikipedia

Modern Physics (Eric Weisstein’s World of Physics, Wolfram Research)

SciShow Physics (YouTube Channel)

Entrepreneurship

Physics Campaigns (Kickstarter)

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Preservation

History

Center for History of Physics (American Institute of Physics)

The Feynman Lectures on Physics (Richard Veynman, Michael Gottlieb, and Rudolf Pfeiffer, California Institute of Technology)
Feynman’s Lectures (Walter Lewin, YouTube Playlist)
The Feynman Lectures on Physics (Wikipedia)

Library

DDC: 530 Physics (Library Thing)
Subject: Physics (Library Thing)

Subject: Physics (Open Library)

LCC: QC Physics (UPenn Online Books)

LCC: QC Physics (Library of Congress)
Subject: Physics (Library of Congress)

Subject: Physics (WorldCat)

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Participation

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Expression

NASAJPL Edu (YouTube Channel)
NASA JPL Edu (Official Website)

Humor

Physics and Astronomy Jokes (Kevin A. Boudreaux, Angelo State University)
Cool Science Jokes (Cool Science)

Poem

OEDILF: The Omnificent English Dictionary In Limerick Form

Music

A Capella Science (YouTube Channel)
A Capella Science (Official Website)
Tim Blais (Wikipedia)

Recent News from Nature Physics …

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Related

Here are links to pages about closely related subjects.

Knowledge Realm

Physical

“Fundamentals”
Law (Constant) Relativity
Force Gravity, Electromagnetism (Light, Color)
Matter (Microscope) Molecule, Atom (Periodic Table), Particle

“Space”
Universe (Astronomical Instrument)
Galaxy Milky Way, Andromeda
Planetary System Star, Brown Dwarf, Planet, Moon

Our Neighborhood
Solar System Sun
Terrestrial Planet Mercury, Venus, Earth (Moon), Mars
Asteroid Belt Ceres, Vesta
Jovian Planet Jupiter, Saturn, Uranus, Neptune
Trans-Neptunian Object
Kuiper Belt Pluto, Haumea, Makemake
Scattered Disc Eris, Sedna, Planet X
Oort Cloud Etc. Scholz’s Star
Small Body Comet, Centaur, Asteroid

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Notes

1. The resources on this page are are organized by a classification scheme developed exclusively for Cosma.

2. The initial inspiration for these “physics” related pages was content encountered in the course PHYS 160 Exploring the Astrophysical World (taught by Thomas J. Moffett) at Purdue University. More content was added while designing and teaching Astronomy and Young Astronauts for gifted students in the Super Saturday/Summer program offered through the Purdue Gifted Education Resource Institute. The content has then been updated regularly since then.

Physical

Introduction¹

Dictionary

Encyclopedia

Adventures

Inspiration²

Innovation

Science

Commerce

Entrepreneurship

Preservation

History

Library

Participation

Education

Course

Community

Occupation

Organization

News

Book

Expression

Humor

Game

Poem

Music

Recent News from Nature Physics …