Participate in expert physics discussion. Discussion on the nature and properties of matter and energy. This area is for topics that don't fit the other categories. Mainstream physics only.
Threads
High School Do physical (macroscopic) waves consist of matter?
- Vitani1
- · Replies 5 ·
Undergrad How Can Non-Scientists Explore Ideas About Time and Dark Matter?
- In-Finite
- · Replies 13 ·
Undergrad How to relate to math expressions that don’t have physical representations
- rasp
- · Replies 3 ·
Graduate Recent Noteworthy Physics Papers
- ZapperZ
- · Replies 257 ·
Graduate Abour Riccardo Giacconi's opinion about the multiverse?
- Suekdccia
- · Replies 2 ·
News Eric Weinstein's recent PBS Spacetime appearance with Hossenfelder and Smolin
- hyksos
- · Replies 1 ·
High School Which Cleanroom ISO Class is suitable for Liquid Crystal research?
- Viona
- · Replies 1 ·
Do you see any "spirality" in this picture?
- Swamp Thing
- · Replies 6 ·
Graduate Why is curvilinear used for generalized coordinate systems?
- CPW
- · Replies 1 ·
Undergrad Unconventional methods for pumping down a vacuum chamber?
- nightsdawnfan
- · Replies 10 ·
Graduate What Particles Do Educators and Students Worldwide Favor?
- fresh_42
- · Replies 13 ·
High School Do we need another language other than math?
- Ten5ion
- · Replies 4 ·
Undergrad What is the Meaning of First Principle in Chemistry?
- sandf
- · Replies 8 ·
Undergrad Relationship between physics and philosophy
- Johnny Yuma
- · Replies 5 ·
High School How Unique Is Our Voice in Nature?
- kenny1999
- · Replies 10 ·
Graduate Software for cross section calculations using .cif files
- qnach
- · Replies 2 ·
AAPT 2020 Summer Meeting (now Virtual)
- robphy
- · Replies 1 ·
If you break the laws of physics, do you go to jail?
- Jupiter60
- · Replies 11 ·
Undergrad How do I know the lithium content of a lithium-ion battery?
- Stonestreecty
- · Replies 13 ·
Undergrad Why does PRL have a small impact factor despite publishing major discoveries?
- kelly0303
- · Replies 13 ·
LIGO India is hosting a series of live talks on Youtube
- Wrichik Basu
- · Replies 5 ·
Photo Contest - Simple Harmonic Motion (5/2-5/8)
- ZapperZ
- · Replies 7 ·
Undergrad Differences between perturbation/variation of an object?
- troglodyte
- · Replies 9 ·
News Freeman Dyson's contributions to physics and beyond
- Doc Al
- · Replies 8 ·
Apollo 13: What did the crew see when they looked out the window?
- DennisN
- · Replies 1 ·
High School Are Beats and Standing Waves Related in Physics?
- Bilbo B
- · Replies 3 ·
High School Physics-based tricks and scams
- jack action
- · Replies 3 ·
Undergrad Solution to the 1D wave equation for a finite length plane wave tube
- jeremiahrose99
- · Replies 7 ·
RIP Nobel Laureate Philip Warren Anderson
- StatGuy2000
- · Replies 4 ·
Amateur microscope mostly for children
- fluidistic
- · Replies 32 ·
Undergrad What physics do I need to learn to do calculations for throwing water?
- nexteon
- · Replies 6 ·
High School Why are 2/3 of my brake lights required to work by law?
- ItsOpposite
- · Replies 11 ·
Undergrad Faster than light thought experiment
- leebobandido
- · Replies 4 ·
High School Is the Stationary Light Near the Moon Venus?
- skyshrimp
- · Replies 5 ·
Graduate Physics - Description is description
- Omega0
- · Replies 22 ·
Who was the legendary theoretical physicist who passed away at 96?
- TeethWhitener
- · Replies 1 ·
Graduate The Human Body as a Dark Matter Detector
- Dr. Courtney
- · Replies 3 ·
Undergrad How did students manage to study the required Mathematics for Physics
- Adesh
- · Replies 16 ·
Graduate What was the most intellectually stimulating class you have ever taken?
- TechieDork
- · Replies 5 ·
High School How does Float Dial control buoyancy of solid objects in A Certain Scientific Railgun?
- ayami123
- · Replies 8 ·
Undergrad T-shirt with a force and momentum pun from Adler Planetarium
- ZapperZ
- · Replies 13 ·
Undergrad PM2.5 Monitor Question (particulates 2.5 microns or below)
- chirhone
- · Replies 17 ·
Graduate What would be the impact of the discovery of the Graviton in the world?
- Cathr
- · Replies 6 ·
High School What Are the Nuances Between Similar English Words?
- Jiman
- · Replies 2 ·
High School Who set the values of Physics Constants?
- usm4nq
- · Replies 5 ·
Surreal Physics Movies: Share Your Favorites!
- hodgeman
- · Replies 8 ·
High School Falsifiability -- What is Popper proposing and how should it read?
- Julius Ceasar
- · Replies 26 ·
High School Ready to Master Knots? Listen to This 2-Minute Audio!
- jim mcnamara
- · Replies 7 ·
High School Kill drum head overtones without anything touching the drum head
- calvinrose
- · Replies 10 ·
High School Do drums/strings have a pitch bend when they are struck?
- mikejm
- · Replies 22 ·
High School Could gravity be caused by neutron attraction?
- Shadow Onion
- · Replies 3 ·
Undergrad What Is a Harmonograph?
- harbong
- · Replies 1 ·
Is it possible to have physics without mathematics?
- Anti Hydrogen
- · Replies 3 ·
High School Opposing speakers and standing waves
- Israel Lucindo
- · Replies 9 ·
Undergrad Numerical Solution to the Rayleigh Plesset Equation
- KDPhysics
- · Replies 1 ·
Summer Sunday Tours at Brookhaven
- ZapperZ
- · Replies 7 ·
Dirac papers disappeared from archive.org?
- jjustinn
- · Replies 1 ·
Undergrad What grade is expected of physics students?
- Mathlol
- · Replies 6 ·
Graduate Can a Solar Panel Detect a Raman Signal After Filtering Rayleigh Scattering?
- David lopez
- · Replies 13 ·
Undergrad Studying the air layer over a solid object
- hagopbul
- · Replies 5 ·
Graduate John Wheeler's lost FBI file on hydrogen bomb secrets
- robphy
- · Replies 2 ·
Undergrad Why Sea Level sometimes gives an illusion being at height
- physicsEnthu_123
- · Replies 25 ·
Undergrad What are nanosystems and where can we find them in our daily lives?
- frosenhaeger
- · Replies 2 ·
Insights What Can You Learn About the Moon?
- Greg Bernhardt
- · Replies 28 ·
Undergrad Efficiency of computers vs. brains
- otownsend
- · Replies 55 ·
Undergrad Unplug Fridge During Below-30 Days?
- WWGD
- · Replies 2 ·
Undergrad Resources to learn about scaling arguments
- jonander
- · Replies 7 ·
News "Shaggy Dog Stories" relevant to "Cartoon Physics"
- Bystander
- · Replies 1 ·
Graduate Does Michio Kaku agree with Lawrence Krauss' concept of nothingness?
- Suekdccia
- · Replies 1 ·
What to tell relatives about a physics career?
- TechieDork
- · Replies 4 ·
High School Report shows gravity waves in clouds(?)
- jim mcnamara
- · Replies 7 ·
Graduate Pre-1900s Educational Science Background?
- rejuice
- · Replies 12 ·
Photo Contest - Kinetic Friction (10/12-10/18)
- ZapperZ
- · Replies 18 ·
Graduate What are really brilliant physics students capable of?
- TechieDork
- · Replies 2 ·
High School Did the Hunter's Moon Really Look Like a Second Sun in North America?
- cnh1995
- · Replies 13 ·
News What Did the 2019 Nobel Prize in Physics Reveal About Cosmology and Exoplanets?
- DrClaude
- · Replies 8 ·
High School Lost significant figures through division by exact numbers
- pwn01
- · Replies 25 ·
Undergrad How do waves following a shockwave catch up to the shock wave?
- Jake DAprile
- · Replies 5 ·
High School What is the Conversion Factor for Hectacomb Sacrifices?
- Greg Bernhardt
- · Replies 13 ·
Undergrad Typical Wavelength vs Wave Length
- math04
- · Replies 8 ·
Should Scientists Reject Michio Kaku's Views on UFOs and Aliens?
- new6ton
- · Replies 17 ·
Graduate What does the concave multifractal spectrum shape physically mean?
- Meryka
- · Replies 1 ·
Graduate Understanding Kolmogorov-Smirnov Test Results for Random Number Generators
- Federica
- · Replies 1 ·
Graduate Interesting Physics Riddle I Devised
- DifferentialGalois
- · Replies 5 ·
Graduate Real image of a sawtooth standing wave in a musical string?
- pkc111
- · Replies 41 ·
Billionaire invested in a fringe nuclear energy startup gone wrong
- BWV
- · Replies 3 ·
Undergrad Number of basic physical quantities
- Fe-56
- · Replies 1 ·
Adding drama and controversy to scientific articles for the public
- HankDorsett
- · Replies 13 ·
High School Why do oceans look blue from orbit?
- Warp
- · Replies 10 ·
Undergrad Does Lawrence Krauss believe in the anthropic principle?
- Suekdccia
- · Replies 5 ·
Frustrations with the general populace's lack of interest in science
- MikeeMiracle
- · Replies 49 ·
Undergrad Rebinning Strategies for Unequally Spaced Data in Spectroscopy Experiments
- kelly0303
- · Replies 4 ·
High School How does light interact with objects to create vision?
- anni
- · Replies 7 ·
News Remembering J. Robert Schrieffer: A Pioneer in Superconductivity Theory?
- ZapperZ
- · Replies 2 ·
Undergrad What technology could detect wavelengths beyond gamma rays?
- Starling
- · Replies 21 ·
Fixing sagging crossbar on 24-foot drainage pipe soccer goal
- stryped
- · Replies 5 ·
Graduate Does larger syringe barrel diameter improve aspiration force for biopsies?
- Syringe User
- · Replies 1 ·
High School Dumbing down of science for the general population
- HankDorsett
- · Replies 7 ·
High School What can waves tell us about the media they travel through?
- Boballoo
- · Replies 4 ·
Graduate Where Can I Find Animated Graphics of High Energy Collisions?
- KevinMcHugh
- · Replies 2 ·