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 Global Data Storage: Can You Store More Info in Human DNA than on Computers?
- esmeralda4
- · Replies 1 ·
High School Matter cannot be created or destroyed?
- cshum00
- · Replies 21 ·
High School Do Atoms Exist in a Perfect Vacuum?
- santhony
- · Replies 80 ·
Graduate How to transform Ry unit of Energy to Hartree?
- new_986
- · Replies 3 ·
Undergrad Vibration in vacuum. What would happen?
- uros
- · Replies 5 ·
High School Physics and science of contortion/flexibility/magic tricks
- Mt. Nixion
- · Replies 18 ·
Undergrad How Can I Understand Primal and Dual Problems Along with Simplex?
- retspool
- · Replies 2 ·
Undergrad Can a Longitudinal Oscillator Be Seen as a Standing Wave?
- pinsky
- · Replies 2 ·
High School Does a T.V. transfer energy to the observer?
- xrisxs
- · Replies 1 ·
Undergrad What limits resolution of a 4 quadrant sun sensor?
- dacruick
- · Replies 2 ·
Graduate Does reversing time make a particle moving left move right instead?
- eoghan
- · Replies 17 ·
High School Does an Infinite Plane Have a Horizon?
- ezarhadden
- · Replies 2 ·
High School Measuring density precisely with a waterproof balance underwater
- exponent137
- · Replies 4 ·
High School As we have so many oil mines around the world, how large are these
- Grimoutlook
- · Replies 6 ·
High School What Causes These Unique Swirly Ice Formations?
- texasblitzem
- · Replies 6 ·
Graduate Dynamical Qualities and the Informational Paradigm
- ZachHerbert
- · Replies 48 ·
Undergrad Why does 1/x + 1/x = 1/y appear in resistors, lenses, and inductors?
- antistrophy
- · Replies 10 ·
Undergrad Is There a Fifth Fundamental Force in Physics?
- cubey
- · Replies 5 ·
Undergrad Can You Compress a Vacuum Void?
- NeilWallace
- · Replies 47 ·
Undergrad Which Vector Notation is Best for Physics, Engineering, and Mathematics?
- thegreenlaser
- · Replies 3 ·
What is Athene's Theory of Everything?
- dankshu
- · Replies 1 ·
Most exciting areas of research in Physics?
- TrustInsight
- · Replies 16 ·
Undergrad I'm trying to explain some physics principles to a general audience
- sci-guy
- · Replies 2 ·
Graduate Fourier Transform and Complex Plane
- evad1089
- · Replies 5 ·
High School Can I Accurately Test Hardness of Materials Without a Microscope?
- DrnBrn
- · Replies 5 ·
Undergrad Physical law behind some physical effects
- maniferrari
- · Replies 2 ·
High School What physics (topics) to study to become a pilot
- Alan Do
- · Replies 12 ·
Graduate What happens to antimatter traveling at the speed of light?
- crapola77
- · Replies 30 ·
Graduate What Really Grinds my Gear about the Dark Phenomena.
- Nano-Passion
- · Replies 34 ·
Undergrad What is fine structure?
- physicsnoob12
- · Replies 1 ·
Undergrad Why Does the Endolymph Move Opposite to Head Movement in Vestibular Function?
- sameeralord
- · Replies 3 ·
Graduate Is measurable physics based on three things?
- JMS61
- · Replies 8 ·
Graduate Idea for graphics programming project?
- TriKri
- · Replies 4 ·
Who Was Einstein's Favorite Physicist?
- jsantos94
- · Replies 34 ·
High School Can a man made fire be visible a few miles in the night?
- test_new_sw
- · Replies 22 ·
High School Can you convert miles per hour to pound-force?
- elmarsur
- · Replies 3 ·
Graduate Scientific basis for hyperspace travel in fiction
- darkranger85
- · Replies 10 ·
Undergrad Do Physical Laws Apply to Dreams Like They Do in Waking Reality?
- Mueiz
- · Replies 30 ·
Does the presence of a cat affect the shock received from a cowherd experiment?
- fawk3s
- · Replies 2 ·
Undergrad What Are Some Quirky Science Topics for a Physics Talk?
- bayners123
- · Replies 9 ·
Time Machine will not be invented
- lolerboler
- · Replies 197 ·
Undergrad Setting up integrals for physics problems
- Meadman23
- · Replies 7 ·
Graduate Is a Homemade Quadrupole Mass Spectrometer Possible?
- Ravaner
- · Replies 7 ·
Energy Converter: Find an Online Calculator
- markys
- · Replies 2 ·
What Happened to the Advanced Physics Forum?
- phisix
- · Replies 6 ·
Undergrad Complex notation of periodic functions
- Apteronotus
- · Replies 2 ·
Undergrad What does photodiode bandwidth tell you in practice?
- komalpahwa65
- · Replies 1 ·
High School What causes the moon to be bright at night?
- jobyts
- · Replies 21 ·
Graduate How Are BV Functions Applied in Physics and Engineering?
- Hjensen
- · Replies 3 ·
Graduate What have we learned since Feynman about unsolved problems he mentioned?
- dkotschessaa
- · Replies 5 ·
High School Understanding 10mAhr and 10Whr Ratings for Laptop Batteries
- jackson6612
- · Replies 10 ·
High School If you look far far away you'll find that you're looking to your back
- Abdelmadjid
- · Replies 10 ·
High School What is a field in physics and how does it relate to waves?
- TrickyDicky
- · Replies 9 ·
Graduate Blinded by the light (slight return)
- Andy Resnick
- · Replies 5 ·
Do you still find popular science books to be enlightening?
- Simfish
- · Replies 12 ·
Graduate Advice Wanted:How To Solve A Problem Without Really Understanding It
- terryphi
- · Replies 1 ·
Undergrad Wavelength in harmonic oscillators and EM waves
- mishima
- · Replies 7 ·
Undergrad Calculating Compressed air leaks within a system
- rl424
- · Replies 3 ·
High School Why Does a Longer or Thicker String Produce a Lower Note?
- 1MileCrash
- · Replies 10 ·
Undergrad Stagnation points for flow around a cylinder
- SaveFerris
- · Replies 3 ·
Graduate Central difference approximation
- hermano
- · Replies 1 ·
Graduate Proving the Normal Law of Errors
- SpaceExplorer
- · Replies 3 ·
Undergrad Where can I submit a physics theory idea and get help with the math?
- Jseraph
- · Replies 5 ·
What Galactic Processes Did You Dream About in the Milky Way?
- LogicalAcid
- · Replies 11 ·
Graduate Given a 2nd order system response, how to get equation ?
- integralx2
- · Replies 1 ·
Undergrad Does the butterfly effect apply in reality?
- BernieM
- · Replies 89 ·
High School Can Non-Live Images Be Captured on a Screen?
- Amrutha Purna
- · Replies 6 ·
High School Will an inverted mercury column support itself on sealed gas?
- phymatter
- · Replies 11 ·
High School What are locality and nonlocality?
- new_986
- · Replies 2 ·
Graduate Why haven't other universes collided with ours?
- Emanresu56
- · Replies 91 ·
High School Is Observing Starlight a Form of Time Travel?
- Marco12
- · Replies 28 ·
Undergrad Uncertainty in Multiplication: Significant Figures vs. Rate
- ChARMELeOn
- · Replies 7 ·
High School Starting Non-Calculus Based Physics
- alyshahj803
- · Replies 3 ·
Undergrad How Much Data Can a Single Wave Carry?
- kushl.guptaa
- · Replies 5 ·
Undergrad MAh, UPS power consumption of laptop
- jackson6612
- · Replies 9 ·
Physics paper guessing game: Are you worse than a monkey?
- D H
- · Replies 8 ·
Can the Public Tour the Large Hadron Collider?
- Coin
- · Replies 2 ·
Liquid simulation with material point method
- Kevin_Axion
- · Replies 14 ·
Graduate Nano-field Will Ultimately Aid Physics Knowledge
- Nano-Passion
- · Replies 7 ·
Graduate Why is the grandfather paradox a paradox if feedback exists in physics?
- SJGooch
- · Replies 13 ·
Undergrad Any arguments for time travel back in time (the past)?
- PhysicsILike
- · Replies 44 ·
Undergrad In Dimensional analysis why is Lenght/Lenght=1 (a dimensionless number)?
- ChARMELeOn
- · Replies 58 ·
How many physics friends do you have?
- zeromodz
- · Replies 27 ·
Graduate Is there a perception of a prestige hierarchy among physicists?
- Simfish
- · Replies 5 ·
High School How many joules equal a pound of TNT?
- Pengwuino
- · Replies 6 ·
Undergrad When the motor is working harder, it needs to rotate faster.
- jeremy480
- · Replies 7 ·
High School A 500 pound fly (this is not a HW question)
- Xelb
- · Replies 48 ·
High School Do two people move if one steps forward in a sealed room?
- michonamona
- · Replies 4 ·
Graduate Kramers-Kronig relationship between ultrasonic attenuation and phase velocty
- chauhan89
- · Replies 2 ·
Graduate Greatest Theoretical Physicists of 20th Century?
- GoldPheonix
- · Replies 6 ·
Graduate Does time exist outside one's mind?
- BeXti
- · Replies 4 ·
High School Difference between vectors and scalars
- Aartt
- · Replies 16 ·
Graduate Can non-technical thinking improve physics and science?
- Digitalism
- · Replies 35 ·
Undergrad Trying to about vectors and matrices to aid my game design hobby
- silverspawn
- · Replies 1 ·
Graduate Rebutting Fixed Earth Argument: A Response
- Gabe911
- · Replies 4 ·
Undergrad Is it possible to have distance without time?
- swerdna
- · Replies 45 ·
Undergrad Three (hopefully simple) physics puzzlers
- AxiomOfChoice
- · Replies 4 ·
Undergrad Uncertainty in measurements and epsilon delta definition of a limit
- madah12
- · Replies 3 ·
High School Do Atoms Need Fuel? A Curious Question
- 36grit
- · Replies 17 ·