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
Are there any formulae that involve decibels?
- Ralphonsicus
- · Replies 8 ·
High School Debating Garage Refrigerator Temperature Settings
- tewitt1949
- · Replies 7 ·
High School Can I Block Signals in My House for Better Sleep and Health?
- BlueBull
- · Replies 2 ·
High School What do you call this kind of attraction?
- Buzzworks
- · Replies 1 ·
Graduate Why is Mathematics so successful in Physics?
- Tosh5457
- · Replies 22 ·
High School Did Blaise Pascal Experiment with a Barrel?
- hamilton333
- · Replies 2 ·
Graduate Is a Fractal Dimension of 0.65 Possible in Nonlinear Oscillator Systems?
- Joran
- · Replies 3 ·
Graduate How to Find the B Matrix in Matlab for Wavelet Basis Functions?
- sachin_ruk
- · Replies 2 ·
Undergrad What Causes Unusual Cloud to Cloud Lightning?
- leprechaun0
- · Replies 8 ·
High School What Would an Explosion in a Vacuum Look Like?
- Sneaky07
- · Replies 13 ·
High School What are the meanings of cm^2 and cm^3 in the metric system?
- xLuvux
- · Replies 3 ·
Graduate Einstein's Quote: Reality Is an Illusion
- bugatti79
- · Replies 5 ·
High School Does thicker material insulate sound better?
- Jusdat
- · Replies 4 ·
Graduate Nonsensical representation of gravity
- #Thomas#
- · Replies 58 ·
High School What Are the Basic Principles in Various Fields?
- J3N0VA
- · Replies 1 ·
High School The illusion of the hanging aircraft
- checkitagain
- · Replies 4 ·
Undergrad Efficient Ways to Verify Answers in Physics and Engineering Problems
- ENgez
- · Replies 4 ·
Graduate Energy of an axisymmetric fluid jet
- neyganesh
- · Replies 3 ·
Graduate Is Ed Witten the "Greatest Theorist"?
- Elwin.Martin
- · Replies 3 ·
Graduate Levi-Civita Symbol Exchange: LT or Leprous Tyrannosaurus?
- PAllen
- · Replies 2 ·
Why does a frequently asked physics problem have no answers?
- LearninDaMath
- · Replies 1 ·
News Is PASCO Overcharging for Educational Equipment?
- Pengwuino
- · Replies 11 ·
Graduate Is there anything in the physical world that is actually random even
- tahayassen
- · Replies 2 ·
High School Vectors of 3 components (3 dimensions)
- LearninDaMath
- · Replies 2 ·
Undergrad Where would I post a question concerning the physics involved in
- trueacoustics
- · Replies 2 ·
Where Can I Find Good Sites for Learning Physics?
- Thoughful
- · Replies 5 ·
Graduate Planck scale and combining general relativity with quantum mechanics
- StevieTNZ
- · Replies 2 ·
Is Physics Forums truly beloved by nuclear engineers?
- atyy
- · Replies 5 ·
Can you actually do this?(laser shooting to moon)
- supernova1203
- · Replies 7 ·
Undergrad Understanding Cathode Ray Discharge and Electron Knockout
- physics kiddy
- · Replies 1 ·
Undergrad How Significant is Einstein's Theory of Relativity to Modern Physics?
- grave
- · Replies 8 ·
Graduate Can Something Exist Outside of Time?
- Zephanosuke
- · Replies 1 ·
High School What's Causing the Mysterious Rumbling Sounds in the Sky?
- kdog1982
- · Replies 6 ·
High School How big is the path of an IR emitter
- MartinJH
- · Replies 3 ·
High School What is a constant in mathematics and physics?
- rishch
- · Replies 5 ·
Physics movies (mainstream movies with physics in them)
- Dr Lots-o'watts
- · Replies 18 ·
High School What Causes Electrons to Move in Ionic Bonding?
- Johnahh
- · Replies 1 ·
Graduate Contradiction in Common BJT Configuration: KVL vs Early Effect
- sahil_time
- · Replies 6 ·
Graduate Quantity of Information in Information Theory
- pinsky
- · Replies 5 ·
Undergrad Hypothetical Situation + Math Query
- studentxlol
- · Replies 2 ·
Undergrad Why Do Elements Form Clumps Instead of Randomly Distributing?
- bobsmith76
- · Replies 9 ·
Graduate Are some shadows darker and colder than others?
- deepthishan
- · Replies 5 ·
Undergrad Physics of Human Voice: Factors Affecting Volume
- a87pal
- · Replies 1 ·
Undergrad How Do Standing Waves in Organ Pipes Affect Sound Intensity?
- Gavroy
- · Replies 2 ·
Undergrad Physics of Silly Putty: Asymptote and Time Elapsed
- steiney
- · Replies 2 ·
High School Difference between matter and mass
- xarita
- · Replies 3 ·
Undergrad Do batteries lose mass when discharging?
- Eugbug
- · Replies 5 ·
Graduate How would you experimentally test for a fourth spatial dimension?
- metiman
- · Replies 20 ·
High School Would larger wheels improve fuel efficiency if rotation speed stays constant?
- AllanKirk
- · Replies 15 ·
Undergrad How does a quartz crystal microbalance measure film thickness at different temperatures?
- sunshine111
- · Replies 15 ·
Undergrad What Unit is 4.8912e12 m2 kg/s^4?
- iphilosopher
- · Replies 6 ·
High School Why is balancing objects on a single point so difficult?
- felix123
- · Replies 7 ·
High School Compressions and Rarefactions in longitudinal waves
- Ali_94
- · Replies 2 ·
High School Why is the Sky Blue and What Causes This Color?
- wasi-uz-zaman
- · Replies 7 ·
Admiring the ATLAS LEGO Model: Not for 2000 Euro!
- fourier jr
- · Replies 7 ·
High School How can you smash glass without physical contact?
- Vector_Legacy
- · Replies 5 ·
High School Why did an empty pint glass dance on the bar on its own?
- MisterDavy
- · Replies 5 ·
Graduate Why wont my Karate chopping hand pass through the table?
- thebiggerbang
- · Replies 5 ·
Undergrad How to Combine Two Related Formulas into One in Mathematics?
- lenfromkits
- · Replies 4 ·
Are You Ready to Become an Astrophysicist with Your New Telescope?
- NateSprague62
- · Replies 3 ·
Undergrad Relationship Between( Intensity Level and Intensity of Object)
- shinnsohai
- · Replies 1 ·
Undergrad Report Ideas for Applied Physics Student
- Calias
- · Replies 3 ·
Undergrad Experiments that try to contradict theories (but proved them)
- BitterX
- · Replies 3 ·
Glass, melting points, and Xmas gift idea
- Bobvila
- · Replies 1 ·
Undergrad Do all waves use the same formula share and the same principles?
- whatsthis
- · Replies 6 ·
Why Greek letters matter in physics
- onlinementor
- · Replies 29 ·
Undergrad Could a Natural Nuclear Reactor Have Destroyed an Ancient Civilization?
- BadBrain
- · Replies 12 ·
Undergrad Simulating hair physics with linked vertices
- papillon68
- · Replies 3 ·
Undergrad What is happening at the LHC books?
- Coin
- · Replies 3 ·
High School Good Introductory Book on Physics?
- zoiberg137
- · Replies 1 ·
Why did a sealed milk cooker fall off the stove overnight?
- Sundar_India
- · Replies 2 ·
High School The difference between energy and forces
- bobsmith76
- · Replies 2 ·
Undergrad Light Pulse Travelling Through A Water Bottle (trillion frames per second)
- Kevin_Axion
- · Replies 21 ·
Undergrad Relate Two Vectors to an Angle?
- VX967
- · Replies 11 ·
Graduate Can Vibrational Frequencies Weaken Water Bonds to Enhance Electrolysis?
- navynuclear
- · Replies 3 ·
Undergrad Lay people answering complicated questions.
- lauchlan
- · Replies 23 ·
Graduate How to build an ion thruster
- Skabirian
- · Replies 3 ·
High School Have the definitions of time and metric meter changed over years?
- arabianights
- · Replies 2 ·
Which Physics Journals should I read?
- arpeggio
- · Replies 2 ·
Undergrad How to write a perfect physics lab report
- queenstudy
- · Replies 14 ·
Graduate Physicist with implausible timeline (worked with Pauli after 1958)
- nonequilibrium
- · Replies 19 ·
Graduate What are gravity anomalies and how are they produced?
- nasroltrivial
- · Replies 2 ·
Undergrad What Are the Best Free Alternatives to MATLAB for Simulating Equations?
- abr_pr90
- · Replies 1 ·
High School Problem Solving Physics students vs Non-science students
- 2slowtogofast
- · Replies 6 ·
Absolute Proof Einstein Was Wrong (not really)
- daveb
- · Replies 4 ·
Undergrad Axisymmetric vs cyclic symmetry boundary conditions
- kajalschopra
- · Replies 1 ·
Undergrad What are the Characteristics of Waves between 20 - 200 Hz?
- Ginkgo
- · Replies 2 ·
Graduate Understanding of physics is slim to none
- noviceguy
- · Replies 1 ·
Why is Understanding Physics Important in Avoiding Epic Fails?
- russ_watters
- · Replies 13 ·
High School Ruben-Chladni Plate: Combining Two Physics Experiments
- TeTeC
- · Replies 1 ·
Graduate Understanding Resonance and its Relationship to Frequency and Displacement
- svishal03
- · Replies 5 ·
Undergrad How Does the Angle Between Two Polarizing Sheets Affect Light Intensity?
- qulimuli
- · Replies 2 ·
Graduate Cable unwinding from hollow vs solid cylinder: energy analysis
- arabianights
- · Replies 1 ·
Undergrad Why Don't Gas Particles Get Pulled Towards Earth If Gravity is Constant?
- rishch
- · Replies 3 ·
High School Phase constant explanation needed
- Beano1323
- · Replies 5 ·
High School What Are Some Basic Books on Physics for a Newbie in College?
- J-ho
- · Replies 5 ·
Graduate Vibrations of a circular membrane
- svishal03
- · Replies 1 ·
Undergrad Is ice more or less compressible than water?
- Neitrino
- · Replies 2 ·
High School How to learn physics from scratch as an adult
- Fenrir
- · Replies 2 ·
Undergrad Why is tension used for gas and electricity measurements?
- middling
- · Replies 1 ·