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 What generate the Gravity force from mass?
- oem7110
- · Replies 9 ·
High School If the earth started spinning clockwise
- Flustered
- · Replies 29 ·
High School Will level of liquid increase if ice melts in it?
- jd12345
- · Replies 4 ·
Graduate About the missing Gamma Rays of Low Energy Fusion
- juliusfriedma
- · Replies 12 ·
Graduate Publication advice for Born Rule paper
- Jazzdude
- · Replies 3 ·
High School Strange object in the sky blinking
- kiedis
- · Replies 3 ·
Undergrad Is a Perfect Vacuum Achievable?
- robert nies
- · Replies 8 ·
Graduate ED-XRF spectra - recurrant artifact below 0 keV?
- zappacake
- · Replies 7 ·
High School Converting Joules to MeV: Understanding Energy Conversion
- CloudChamber
- · Replies 1 ·
Questions about Radio/Radar Mapping of Other Planets - Forum User SC
- spacecadet11
- · Replies 4 ·
How does Walter Lewin draw dotted lines so quickly on a blackboard?
- FeDeX_LaTeX
- · Replies 7 ·
Graduate A scale challenge for your brilliant minds.
- Whymsical
- · Replies 4 ·
High School Why does foam form on orange squash?
- wildwildebees
- · Replies 5 ·
What Are the Most Romantic Old-Time Science Phrases?
- Opus_723
- · Replies 24 ·
Why do lots of people think time isn't real?
- Dremmer
- · Replies 11 ·
Undergrad Digital Signals on Analog lines?
- Newtons Apple
- · Replies 5 ·
High School Whats fire made of? What element atoms are it.?
- aditya23456
- · Replies 19 ·
Undergrad What are some good websites/magazines for updates in physics?
- johann1301
- · Replies 2 ·
Can energy be perceived directly?
- Dremmer
- · Replies 1 ·
Graduate How do you find chaos in the n-body problem?
- thehoten
- · Replies 1 ·
Undergrad How is Taylor expansion used in physics?
- spaghetti3451
- · Replies 4 ·
Can Brooms Really Stand by Themselves?
- Averagesupernova
- · Replies 4 ·
Graduate Does an observation now create the past?
- StandardsGuy
- · Replies 2 ·
Photo Contest - Quantum Physics (4/14-4/20)
- ZapperZ
- · Replies 9 ·
Graduate God Equation: Is It Real? What Does it Mean?
- Allojubrious
- · Replies 5 ·
Undergrad Forced Vibration: Can Objects Adjust Shape?
- Johnleprekan
- · Replies 1 ·
Physics professor beats $400 ticket using physics
- lortech
- · Replies 1 ·
Undergrad A book trying to answer what life is from a physical perspective
- castro94
- · Replies 3 ·
Graduate Is a PhD in Physics Still a Viable Career Choice for an Engineer?
- Hari K
- · Replies 4 ·
Graduate Fourier transform of signal and power spectral density relation
- xaratustra
- · Replies 1 ·
Undergrad Why are Some Constants Dimensionless?
- physics kiddy
- · Replies 5 ·
Undergrad Capillary Action and Paper Towel Physics
- yz2275
- · Replies 1 ·
Graduate Ellipsometric data analysis software?
- sweetzz_85
- · Replies 3 ·
Undergrad Relative Density of metal powder
- irfanirsyad
- · Replies 5 ·
Undergrad Direct definition of antimatter without reference to opposite charges
- goodoldrebel
- · Replies 18 ·
Undergrad Physicist claims victory over traffic ticket with physics paper
- Insanity
- · Replies 7 ·
Graduate Are Einsteins field equations too complicated?
- Alain De Vos
- · Replies 4 ·
Undergrad Uncertainty Propagation for the Slope of a Line of Best Fit
- Kyle91
- · Replies 7 ·
High School Why Can't We Hear: Sound Traveling in Solids
- johncena
- · Replies 3 ·
Graduate Where Does Light from a Burning Stick Come From?
- RogerGreek
- · Replies 2 ·
High School Theory of Energy Output: An Overview
- purkov
- · Replies 9 ·
Undergrad Propagation of uncertainties with calculus
- Darkmisc
- · Replies 2 ·
Undergrad Why does soot deposit on walls where studs are located?
- DaveC426913
- · Replies 38 ·
Graduate Can You Conduct Quantum Mechanics and Particle Physics Experiments at Home?
- Roy G Biv
- · Replies 6 ·
High School Which is denser: a rhino or a rock?
- promeus
- · Replies 4 ·
High School Interesting topics about physics for teens?
- member 407692
- · Replies 5 ·
High School Guitar feedback INFINITE sustain? Does it really have an infinite sustain?
- Munyit
- · Replies 18 ·
Undergrad What are the properties of transverse waves?
- Celluhh
- · Replies 57 ·
TOP 10 PHYSICISTS ALIVE (theoretical and experimental)
- Casco
- · Replies 1 ·
Undergrad How Did Mighty Atom's Hair Defy Physics?
- Munyit
- · Replies 2 ·
High School I dont understand how to calculate percentage uncertainty?
- mutineer123
- · Replies 13 ·
APS April Meeting: who's attending and what were the highlights?
- Elwin.Martin
- · Replies 12 ·
Graduate Why use differential forms for volume elements and stress components
- An1MuS
- · Replies 2 ·
High School Cutting metal pipe to make different pitches
- ltt
- · Replies 2 ·
Undergrad Bragg's Law: Find Equation 2dsinθ=nλ
- Olly_price
- · Replies 4 ·
Graduate Nernst effect and statistical physics
- kien02091990
- · Replies 2 ·
Undergrad Historical misunderstandings and the names of physics phenomena
- colin456
- · Replies 1 ·
High School Unity means just plain regular 1 ?
- kahwawashay1
- · Replies 2 ·
High School How long does an explosion's boom last?
- jetwaterluffy
- · Replies 13 ·
Who are some inspiring physicists and recommended books for beginners?
- mariexotoni
- · Replies 6 ·
Seeing Is Believing: Is It Possible?
- quietrain
- · Replies 4 ·
Graduate Thought experiment: Rising bubble in rigid container
- JimJim
- · Replies 38 ·
Undergrad Is a perfect vacuum truly achievable in reality?
- papernuke
- · Replies 3 ·
Undergrad Geo Stationary Orbit: 83.0°E Satellite Location
- xMonty
- · Replies 6 ·
Was a Distinguished Physics Professor Framed in Argentina Drug Bust?
- diligence
- · Replies 8 ·
High School Why is asking 'why' in physics frowned upon?
- jd12345
- · Replies 12 ·
Name of this instrument? similar to vernier calliper
- jmher0403
- · Replies 4 ·
High School How Do You Write a Physics Formula?
- dude123470
- · Replies 2 ·
Tilting a Salt Shaker - How Does it Not Tip Over?
- Trapezoidals
- · Replies 2 ·
What would you do for science with 100 billions dollars?
- ExNihilo
- · Replies 38 ·
Why would glass shatter spontaneously?
- jkettle
- · Replies 7 ·
Undergrad What is the role of complex numbers in physics?
- johann1301
- · Replies 8 ·
High School Why did a bathroom window pane shatter spontaneously?
- Ergo606
- · Replies 24 ·
High School How to round off percentage uncertainties?
- jayadds
- · Replies 1 ·
Can I become a physicist without good grades?
- Deewreck
- · Replies 9 ·
High School How does one break a glass bottle and have smooth edges
- Kmccall
- · Replies 1 ·
Undergrad A newcomer to physics could use a little help?
- dude123470
- · Replies 3 ·
High School Solving E=mc^2: What Units to Use?
- Allojubrious
- · Replies 9 ·
High School How do I find the minumum/maximum acceptable slope?
- jayadds
- · Replies 5 ·
I need an idea for a science experiment
- mrspeedybob
- · Replies 1 ·
Felix Baumgartner high altitude skydive
- natasha d
- · Replies 8 ·
High School Should I use rounded answers from part 1 in part 2 of a multi-part problem?
- jayadds
- · Replies 8 ·
Undergrad I'm having trouble understanding exactly what energy is.
- cdot
- · Replies 5 ·
Undergrad How to distinguish left vs right
- Phybie
- · Replies 3 ·
High School I have just started into to physics I am no good at math what so
- kenya143
- · Replies 1 ·
Who according to you is the greatest physicist of all times?
- emailanmol
- · Replies 3 ·
Choose Your Physics-Inspired DJ Name!
- um0123
- · Replies 18 ·
Graduate Are physicists more sensory than laypeople?
- Loren Booda
- · Replies 14 ·
Undergrad Is division by zero a logical error in this proof?
- Lizwi
- · Replies 5 ·
Breccia meteorite smashed into summer house in the middle of Oslo
- arildno
- · Replies 14 ·
Undergrad A perpetual machine model that sets me thinking
- cng99
- · Replies 3 ·
Graduate Detection of Earth's radio broadcasts at interstellar distances
- Pagan Harpoon
- · Replies 3 ·
High School Accuracy, Precision and Sensitivity for measurement instruments
- Acid92
- · Replies 7 ·
Undergrad How does Nyquist's theory apply to digital recording of opera music?
- amylase
- · Replies 35 ·
Graduate Pan flute bore diameter and the 0.82 correction factor
- JlMoriart
- · Replies 10 ·
Is Michio Kaku a leading physicist or just popular on TV?
- Flustered
- · Replies 4 ·
Graduate Statements about TOEs, Theory of TOEs
- phoenixthoth
- · Replies 23 ·
Undergrad How to mass an object that is less dense than air?
- Ralphonsicus
- · Replies 5 ·
Undergrad Coronal Mass Ejection = Buzzing Coaxial Outlet?
- mrb427
- · Replies 1 ·