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 Why is vacuum measured from 0 to -1 bar relative to atmospheric pressure?
- Micko
- · Replies 1 ·
Where Can I Find an Animation of Nitrogen/Helium Liquifaction?
- avinash1968
- · Replies 2 ·
Undergrad Units of Brinkman's Equation Parameters
- dala
- · Replies 2 ·
Undergrad What Happens to an Object in a Vacuum Filled Jar?
- LeoYard
- · Replies 6 ·
Graduate EMBLA 2000 mission in Hessdalen
- Ivan Seeking
- · Replies 18 ·
Undergrad Kashiwazaki-Kariwa nuclear plant may sit on seismic fault
- wolram
- · Replies 11 ·
Undergrad Will there be a capillary rise of liquid in vaccume with gravitation present?
- abhijitlohiya
- · Replies 4 ·
High School What does the professor mean by free electricity in Physics 2?
- webdivx
- · Replies 8 ·
Graduate Can Quantum Mechanics and Art Coexist?
- cor
- · Replies 9 ·
Undergrad Low Frequency Wave Transmission Through Barriers
- neworder1
- · Replies 4 ·
Graduate Is Cold Fusion Making a Comeback?
- Ivan Seeking
- · Replies 16 ·
High School Does temperature affect the sinking rate of objects at different latitudes?
- Jimmy Snyder
- · Replies 8 ·
I miss physics, accouting is so dull
- Ronnin
- · Replies 6 ·
High School What is Mass? Understanding the Concept of Matter and Mass
- quantum123
- · Replies 12 ·
Real Physics (and my last post) is lost
- cala
- · Replies 1 ·
Graduate Could synthetic particles be signals from extraterrestrial civilizations?
- Loren Booda
- · Replies 16 ·
Graduate How do I find the Ion potential in a chamber using Geant4?
- envanyatar
- · Replies 2 ·
Graduate Does the universe have a finite lifespan based on Planck energy limits?
- madmark2150
- · Replies 30 ·
High School Deriving input-output relationship
- jayki
- · Replies 4 ·
Whiteboards on Online Forums - Info Requested
- mujadeo
- · Replies 1 ·
High School What is the difference between white noise and black noise?
- dervast
- · Replies 6 ·
Undergrad Did simplicity win in our school's technical drawing competition?
- Benzoate
- · Replies 24 ·
High School What is a 100% incline in Tour de France?
- TSN79
- · Replies 13 ·
Watch Sun TV's Science Games Show - Tuesdays 8am
- siddharth
- · Replies 1 ·
High School Significant figures in scientific notation and timekeeping
- MIA6
- · Replies 4 ·
Undergrad How Do Springs A, B, and C Reach Equilibrium on the 4th and 5th Intervals?
- Werg22
- · Replies 1 ·
Undergrad Studying Swarm Behaviour Using Physical Methods
- bernhard.rothenstein
- · Replies 5 ·
Graduate Levitation is a well documented phenomenon
- H8wm4m
- · Replies 21 ·
High School What is the driving force behind osmosis in biology?
- youknowme
- · Replies 5 ·
Thank you to the mentors who helped me prepare for physics
- exi
- · Replies 10 ·
High School Why do airplanes pressurize their cabins?
- cuddlesome
- · Replies 8 ·
Welcome Back Belle! Physics Student Results Next Week
- alias25
- · Replies 5 ·
Undergrad Glow of emission lines vs. hot objects
- taoke
- · Replies 2 ·
How would a sun that rises in the west affect days, years, and the moon?
- Johnna
- · Replies 7 ·
High School Why does copper-iridium metal attract and reduce non-metals to powder?
- Iridium_copper
- · Replies 17 ·
Graduate What is the M-Effect in John Hagelin's research?
- hedons
- · Replies 6 ·
Ijust want to ask example of DPImJustNewHereand
- InidDDPP
- · Replies 1 ·
Using physics principles to design magic illusions
- MagicMan_10
- · Replies 21 ·
High School What Does Per Unit Volume Mean in Physics?
- GammaMacht
- · Replies 5 ·
Why is electrostatic wave not an oxymoron?
- leright
- · Replies 12 ·
High School Derivation of the Celsius to Fahrenheit conversion formula
- sk381
- · Replies 4 ·
Graduate I have lots of questions on physics
- NJV
- · Replies 10 ·
High School Is fire a state of matter or something else?
- wirefree
- · Replies 12 ·
The Mystery of Cold Air Travel: Light vs. Heat
- Raza
- · Replies 2 ·
Undergrad What Is the Unfamiliar Symbol in the Reynolds Number Equation?
- picklefeet
- · Replies 6 ·
Graduate Loan me money today and I will gladly pay you back yesterday
- Ivan Seeking
- · Replies 1 ·
Is Access to Physics Education Improving in Nepal?
- ZapperZ
- · Replies 30 ·
What happened to my physics thread?
- qcksteel
- · Replies 1 ·
Graduate Is There a "Center of Force" for the Other Three Fundamental Forces?
- Telos
- · Replies 5 ·
High School Does a rock's gravity indicate potential energy and atomic bonds?
- physicsx0rz
- · Replies 3 ·
Undergrad How is solar cell efficiency calculated and what do mono and poly crystalline mean?
- The_Thinker
- · Replies 3 ·
High School Okay, what is the official reason planes fly?
- KingNothing
- · Replies 10 ·
Clay Court vs. Other Tennis Courts - What's the Difference?
- haiha
- · Replies 9 ·
Undergrad What would two facing infinite mirrors with nothing between them reflect?
- HardDay'sNight
- · Replies 7 ·
High School How to prepare for a physics exam with two weeks left
- Fricas
- · Replies 7 ·
Undergrad Altitude's effect on pitch of human voice
- Loren Booda
- · Replies 2 ·
Undergrad Did h-bar change? What happened to h-bar?
- Chi Meson
- · Replies 6 ·
High School Why isn't the world flat ? (Are you sure )
- Langbein
- · Replies 2 ·
Physics PhD Without a Bachelor's Degree - Does this Person Seem Familiar?
- FulhamFan3
- · Replies 6 ·
Graduate Normalisation constants in physics?
- pivoxa15
- · Replies 8 ·
High School How Does Powder React When Squeezed Inside a Cube?
- chemart
- · Replies 2 ·
General advantages/Disadvantages of going into physics
- Ki Man
- · Replies 15 ·
Can two loudspeakers one next to other, damage them self?
- scientist91
- · Replies 10 ·
Undergrad Sodium acetate trihydrate - initiation of crystallization.
- Russel Sprout
- · Replies 12 ·
What's your Physics Forums post number?
- tribdog
- · Replies 21 ·
So I just had my first day of work at Fermilab
- brendank
- · Replies 15 ·
Undergrad What determines the amplitude of sound from a speaker?
- Velikikreten
- · Replies 14 ·
Shaking a flashlight near a CRT TV changed its color permanently
- Werg22
- · Replies 16 ·
Graduate Introductory Course in Computational Physics/Engineering
- Astronuc
- · Replies 1 ·
Undergrad Applying physics against a noise problem
- claudiayolga
- · Replies 1 ·
High School Integrating Calculus withing a Physics Project
- don_813
- · Replies 7 ·
Undergrad How do I build intuition for physics constants and their values?
- tim_lou
- · Replies 4 ·
Undergrad Stationary regime in time series.
- Horaci Castellini
- · Replies 1 ·
Graduate Non-local effects and information
- mosassam
- · Replies 32 ·
Undergrad Is the transfer of energy in hydraulics truly instant?
- Helios223
- · Replies 5 ·
High School Definition of Candela: Learn its Meaning
- Milind_shyani
- · Replies 5 ·
High School Why Won't Plastic Pots Melt When Filled with Water?
- szubaidi
- · Replies 6 ·
High School Balinese instrument called an angklung
- atthegates
- · Replies 2 ·
C.N. Yang's 85th Birthday Conference
- yenchin
- · Replies 3 ·
Graduate Why does observing an electron change its behavior without physical interference?
- MALON
- · Replies 10 ·
Undergrad Finding Household Items for Ferrofluid Synhesis
- Neohaven
- · Replies 2 ·
Undergrad What would Earth's orbital velocity be without the Moon?
- Jean-Louis
- · Replies 38 ·
High School Why do we capitalize certain words in physics?
- Axiom_137
- · Replies 8 ·
High School Why does your ear hurt when driving through a tunnel?
- szubaidi
- · Replies 7 ·
What are the top 10 physics journals besides Physical Review?
- plxmny
- · Replies 3 ·
Why Does Physics Exist if It Can't Solve All Practical Problems?
- sancho2007
- · Replies 8 ·
High School What is the Meaning of General Physics?
- sancho2007
- · Replies 10 ·
Man Proposes in Zero Gravity: Freefalling in Love
- robphy
- · Replies 5 ·
High School Is 2+2=5 Possible in Physics?
- sancho2007
- · Replies 16 ·
High School I got a question about the Freedom ship.
- tivaelydoc
- · Replies 3 ·
High School Was Galileo Galilei the first real physicist?
- Izzhov
- · Replies 22 ·
High School What is a fundamental definition of time without using duration or period?
- prasannapakkiam
- · Replies 7 ·
I Just Had an Interview at Fermilab
- brendank
- · Replies 26 ·
Undergrad The Physics of Origami: Can It Be Applied to Playing Cards?
- sk8bordgeek
- · Replies 1 ·
The museum of unworkable devices.
- matthyaouw
- · Replies 4 ·
Undergrad Impact factor of physics journals
- Erdem
- · Replies 8 ·
Latest weird and interesting physics news
- no0oni
- · Replies 1 ·
Twiggy the Water Skiing Squirrel - OH REALLY?
- user299792458
- · Replies 7 ·