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
Undergrad Should there be a law of information preservation?
- haiha
- · Replies 3 ·
Graduate How do physicists deal with emergent properties?
- nightflyer
- · Replies 23 ·
Gravity Rocket Launcher - Explore Physics Fun!
- sanman
- · Replies 7 ·
Undergrad Air volume, compression and bouyancy
- dille71
- · Replies 20 ·
Undergrad Questions about perpetual machines
- linux kid
- · Replies 5 ·
Real Magic - a truly fascinating demonstration
- Chaos' lil bro Order
- · Replies 2 ·
Old Atomic Weapons: Investigating Reality
- NoTime
- · Replies 14 ·
Graduate Chapter 7 of Jackson's Classical Electrodynamics
- Rach3
- · Replies 9 ·
Undergrad Measuring Complex Numbers: Is it Possible?
- Swapnil
- · Replies 66 ·
Undergrad Is it possible a metal to the thickness of
- linux kid
- · Replies 3 ·
Graduate Information Paradox: How a Drawing Can Represent Two Things
- chaoseverlasting
- · Replies 27 ·
Undergrad How to find citation index of a specific researcher?
- kollins
- · Replies 1 ·
High School Why is the continuity equation called the continuity equation?
- Repetit
- · Replies 1 ·
High School What is the physical meaning for time?
- feynman60
- · Replies 6 ·
Graduate Calculating Putt Break Over Distance w/ Friction
- DylanB
- · Replies 1 ·
Question about a number of Physics ideas
- Darth Bandon
- · Replies 16 ·
Graduate Is simultaneous time a real concept?
- RAD4921
- · Replies 3 ·
Undergrad Painting problem physics homework
- powergirl
- · Replies 2 ·
Graduate Are there systemetic methods to finding laws of nature?
- theName()
- · Replies 5 ·
Is Pluto Still a Planet?
- slugcountry
- · Replies 69 ·
Undergrad Fractals: Infinite Perimeters & Plank Scale
- freerangequark
- · Replies 5 ·
High School Using CGS or SI Units: When to Choose?
- Saketh
- · Replies 3 ·
High School How Does a Mist Maker Create Mist?
- Micko
- · Replies 6 ·
Struggling to Learn on Your Own? Get Guidance on Physics Forums!
- studentlife
- · Replies 1 ·
Undergrad Bad Physics in Movies: Proving Mathematically
- integra2k20
- · Replies 22 ·
High School Discovering Seismology: Understanding Earth's Tremors
- powergirl
- · Replies 5 ·
Undergrad Wood vs Brick Homes: Which is Better & Why?
- pivoxa15
- · Replies 9 ·
Graduate Debunking the Universe's Origin with Simple Math for Non-Experts
- Czarnian
- · Replies 3 ·
Open Book Exam Fiasco: Thermodynamics Without the Book
- siddharth
- · Replies 22 ·
High School What is the significance of plasma as the 4th phase of matter?
- Nuklear
- · Replies 3 ·
High School Cathode Ray Tube: Positive End & Electrons Explained
- pivoxa15
- · Replies 8 ·
Graduate Gravity and Atmospheric Pressure: A Thought Experiment
- Saketh
- · Replies 14 ·
High School Why Do Some People Wear Summer Clothes on Snowy Mountains?
- pivoxa15
- · Replies 7 ·
Graduate Unveiling Rope Theory: A New Paradigm in Physics
- Jimmy Snyder
- · Replies 12 ·
High School What Can We Learn About Physics From This Donkey's Predicament?
- Rach3
- · Replies 4 ·
Undergrad A material/ substance that does not allow the through it
- scupydog
- · Replies 7 ·
Graduate The Future of GR: Is Time Already Set?
- daniel_i_l
- · Replies 8 ·
Greatest Science websites of 2006
- Chaos' lil bro Order
- · Replies 14 ·
High School Stack poker chips in a staircase-like fashion
- bigdave
- · Replies 34 ·
High School John Baez's Crackpot Index: Unpacking String Theory?
- Leopold Infeld
- · Replies 5 ·
Physics of Immortality: 1994 Book Review & Analysis
- Arithus
- · Replies 17 ·
Undergrad Rail Gun using disposible camera's flash charger
- Stevedye56
- · Replies 5 ·
High School What Does XKCD Teach About the Right-Hand Rule?
- neutrino
- · Replies 5 ·
High School Questions About Air: Why Hot Air Rises & More
- mindboggling
- · Replies 3 ·
Undergrad Is This Barometer Height Question a Hoax?
- ZapperZ
- · Replies 32 ·
Hutchinson Effect - What Do Folks Think?
- Entheos
- · Replies 3 ·
What fraction of physics bestsellers are Feynman?
- marcus
- · Replies 2 ·
Anyone know the future uses of x rays within a hospital?
- boredooom
- · Replies 8 ·
High School What Is the Rocket Equation From a Non-Mathematician's Viewpoint?
- artrocket
- · Replies 6 ·
What Surprises Await in the CD Version of Feynman's Lectures?
- Jimmy Snyder
- · Replies 2 ·
Undergrad How long did it take you to become competent at physics?
- aeroboyo
- · Replies 17 ·
Graduate Is Quantum Movement Similar to Teleportation in Subatomic Particles?
- regent
- · Replies 3 ·
High School Weight of 12 fl oz Beer Bottle | Physics Project Help
- sphoenixee
- · Replies 20 ·
For sure the stupidest question you'll hear this week
- mathlete
- · Replies 1 ·
Graduate How do know identify crackpot from real physics
- aeroboyo
- · Replies 20 ·
Undergrad Randy Kobes & Gabor Kunstatter - UWinnipeg Physics Dept.
- Astronuc
- · Replies 1 ·
Graduate Us humans visualising the fourth dimensional line element
- PMCIIII
- · Replies 16 ·
Graduate Cutting objects at the molecular level
- nikolatesla20
- · Replies 4 ·
Graduate Investigating Rogue/Freak Waves and Chaos Theory
- xeon
- · Replies 18 ·
I am looking for a modeling software.
- dekelc
- · Replies 8 ·
Undergrad ITER: Nuclear Fusion Reactor Agreement Signed
- Mk
- · Replies 13 ·
Undergrad Probability in Physics - Get Answers Here!
- MadScientist 1000
- · Replies 4 ·
High School What Are Some Great Physics Quotes for a T-Shirt Design?
- hannibalisfun
- · Replies 16 ·
High School Stationary Wave Questions: Can Open Tubes Produce Them?
- momomo_mo
- · Replies 1 ·
Undergrad What is 2D Density? Understanding Mass, Volume, and Area in Relation to Density
- tony873004
- · Replies 8 ·
High School Preparing for Physics: Where to Start?
- Kayla
- · Replies 3 ·
High School What is impeadence of ionized air?
- Agnostic
- · Replies 7 ·
High School Where can I find massless string for physics experiments?
- l_tunaboy
- · Replies 18 ·
Undergrad How Does Nanotechnology Work?
- houman02
- · Replies 5 ·
How can someone achieve invisibility?
- nomorevishnu
- · Replies 74 ·
High School How Do Venturi Meters and Filter Pumps Work?
- Cruiser
- · Replies 2 ·
Where Can I Find GCE A-Level Past Papers?
- d1v1n1ty nb
- · Replies 1 ·
High School Make a Guass Rifle in 3 Days: Simple Directions
- homeycat
- · Replies 2 ·
Color Me Physics: American Physical Society Coloring Book for Kids
- ZapperZ
- · Replies 15 ·
Undergrad Learn Physics: Best Book to Teach Yourself
- Stack81
- · Replies 4 ·
Undergrad Why Can an Equation Be Homogeneous but Incorrect?
- d1v1n1ty nb
- · Replies 7 ·
Undergrad What Miraculous Experiments Did Nikola Tesla Conduct in His 1899 Lab?
- zoobyshoe
- · Replies 8 ·
Graduate Is the Universe Expanding in the Time Dimension?
- Gablar16
- · Replies 13 ·
Foot Contact Time: Resources & Info
- lawtonfogle
- · Replies 4 ·
Graduate What would a theory of everything have to say about its own existence?
- kant
- · Replies 9 ·
New Planet: Earth-Like | Would You Go?
- wolram
- · Replies 17 ·
Graduate The Brain of Einstein: Insight into his Mathematical & Scientific Thinking
- robert Ihnot
- · Replies 10 ·
Graduate Can My Theory Revolutionize Science Beyond Relativity?
- gautamaish
- · Replies 4 ·
High School Parallax error - what type of error is it?
- skyglow1
- · Replies 5 ·
Undergrad Is Gravity the Ultimate Source of Potential and Kinetic Energy?
- disturbed1
- · Replies 4 ·
Graduate Uncertainty principle - epistemic or more?
- Tsunami
- · Replies 5 ·
High School Investigating Matter, Mass and Molecules
- sog
- · Replies 18 ·
Graduate Metamaterial Electromagnetic Cloak at Microwave Frequencies
- Ivan Seeking
- · Replies 9 ·
High School Electric Burners: Strange Sounds Explained
- JoAuSc
- · Replies 2 ·
Graduate Looking for the physical properties of the skin
- fargoth
- · Replies 10 ·
High School What do the symbols in Physics Formulas mean? Help needed!
- TDS
- · Replies 4 ·
Are You Ready for the Argonne Open House 2017?
- ZapperZ
- · Replies 12 ·
Graduate Can Antigravity Unlock Space Travel and Pollution-Free Energy?
- Event_Horizon
- · Replies 46 ·
High School Question regarding System of Units
- junior_J
- · Replies 4 ·
High School What is the shoebox experiment illustrating parallel universes?
- jonathon0074
- · Replies 5 ·
High School Nikola Tesla: Inventions, Mysteries & Possibilities
- taylaron
- · Replies 7 ·
High School Noisy TV's: Is There a Reason for the High Pitch Sound?
- Stevedye56
- · Replies 20 ·
Tonight's Full Moon 12 Percent Bigger
- Evo
- · Replies 20 ·
High School Physics Experiments: Constructing Investigation Design Report
- jstark11
- · Replies 4 ·
Undergrad Popular science sometimes feels meaningless
- daso
- · Replies 5 ·