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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.
Undergrad Seismometer Sensitivity: Unit, Richter-Scale, Magnitude
  • mersecske
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Undergrad The Sock Toe-Hole Symmetry Breaking Problem
  • FlexGunship
  • · Replies 14 ·
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14
High School Calc: Calculating Volume of a Pipe
  • qim
  • · Replies 4 ·
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4
Investigatory Project for physics
  • dennie
  • · Replies 2 ·
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2
What is "Linky" by Stansi Scientific Co.?
  • Sulla_2012
  • · Replies 9 ·
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9
Graduate How Does Gravity Influence Ring Structures and Tidal Effects?
  • Hexx
  • · Replies 16 ·
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16
Graduate Problem with randomness and uncertainty
  • ravendusk
  • · Replies 38 ·
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38
Is there a difference between a physist and a physicist?
  • Newai
  • · Replies 5 ·
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5
Are There Modern Einsteins Among Us?
  • Denver Dang
  • · Replies 16 ·
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16
High School Physics Project Topic Ideas for High School
  • John H
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2
High School Analog volume control, digital volume control
  • jackson6612
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1
Undergrad Can a balance accurately measure the mass of a gas in a balloon?
  • platina
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2
Graduate Geophysics: Calculating Inner Core Radius
  • s7b
  • · Replies 4 ·
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4
High School Drying Timber Logs: Surprising Ease & Benefits
  • geordief
  • · Replies 6 ·
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6
Graduate Troubleshooting Vacuum Gauge Fluctuations in Chemical Vapour Deposition Unit
  • shourie.j
  • · Replies 1 ·
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1
Graduate How Can You Create and Control a Shockwave Using Electricity?
  • Fabchester
  • · Replies 3 ·
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3
High School Is Math the Key to The Secrets of Physics?
  • ajx
  • · Replies 6 ·
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6
Undergrad What is the Greatest Info Density? DNA Holds Record
  • Archosaur
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2
Graduate Blacklight Power Announces Independent Replication
  • FallingMan
  • · Replies 2 ·
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2
High School Does the Earth Have a Frequency?
  • bluegold
  • · Replies 5 ·
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5
What Are Some Unique Physics-Themed Band Names?
  • sam_cursed
  • · Replies 40 ·
2
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Graduate Is Physics Just Another Form of Storytelling?
  • oldman
  • · Replies 3 ·
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3
High School What Quotes Capture the Legacy of the Atomic Bomb?
  • edo1493
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High School Can Ferrofluid Be Used as a Lubricant for Magnets and PVC Pipes?
  • mrtnelson8
  • · Replies 5 ·
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5
High School What are some user-friendly resources for beginners to learn physics?
  • xander1984
  • · Replies 1 ·
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Undergrad Can collaboration lead to scientific breakthroughs?
  • geordief
  • · Replies 2 ·
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2
Undergrad Understanding Energy in standing waves
  • shehri
  • · Replies 13 ·
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13
Physics Problem + Solution Database
  • HorseBox
  • · Replies 7 ·
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7
Khan Academy Videos: Math & Physics Lessons
  • HuaYongLi
  • · Replies 45 ·
2
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High School Requesting relationships to know for success in Physics
  • P91
  • · Replies 4 ·
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4
Undergrad Can materials with different surface properties move without external forces?
  • mcjosep
  • · Replies 1 ·
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1
High School Any Good Resources for Non-Technical, Non- Popular Physics Videos?
  • RJMooreII
  • · Replies 3 ·
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3
Find a Blackboard for Physics PhD Student
  • brydustin
  • · Replies 7 ·
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7
High School How does something become tangible? How many atoms are needed to be
  • harp AP 2010
  • · Replies 3 ·
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3
Graduate Unified Theory of Everything - Figured Out
  • itwillend
  • · Replies 54 ·
2
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54
If you were on a perfectly flat plane
  • CombustionMan
  • · Replies 4 ·
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4
Undergrad Breaking a drinking straw with karate chop
  • guy3288
  • · Replies 8 ·
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8
Quick Question About Plastic Bottle Delfating
  • QuantamMan
  • · Replies 3 ·
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3
High School Can compounds have a higher density than their component elements?
  • PolarisNorth
  • · Replies 3 ·
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3
Undergrad Strange white flash in dark room.
  • felixwatts
  • · Replies 49 ·
2
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49
High School Can someone explain Specific Gravity?
  • PolarisNorth
  • · Replies 3 ·
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3
Graduate Arguments Against Superdeterminism
  • ueit
  • · Replies 142 ·
5
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High School Is Fire Considered Matter and What State Does It Belong To?
  • Dremmer
  • · Replies 14 ·
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14
High School What do the units of diffusion coefficient mean?
  • kop442000
  • · Replies 1 ·
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1
Graduate What are the latest theories on time and its relationship with the universe?
  • Fobio
  • · Replies 2 ·
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2
High School Can matter really be created or destroyed?
  • mauriceb
  • · Replies 4 ·
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4
Physics audio and video lectures
  • seouldavid
  • · Replies 32 ·
2
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Undergrad How long would it take to cook twice the amount of beans?
  • kaleidoscope
  • · Replies 5 ·
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5
Graduate Some General Questions - Need Clarification
  • lowing99
  • · Replies 2 ·
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2
What Are Some Inexpensive Physics Experiments to Revive a University Club?
  • VanOosten
  • · Replies 5 ·
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5
Marko Rodin Fraud or not a Fraud?
  • magfluxfield
  • · Replies 4 ·
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4
Undergrad Why do some substances absorb EMR more than others?
  • LogicalAcid
  • · Replies 1 ·
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1
Undergrad Does Human Population Growth Affect Earth's Mass and Gravity?
  • Funkmaster W
  • · Replies 4 ·
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4
Eternity and Change: Is it Possible?
  • shinokk
  • · Replies 1 ·
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1
Undergrad Can I Step Through a System to Understand an Object?
  • Wiccidu
  • · Replies 1 ·
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1
Undergrad Units into Log and Exponential Functions
  • terryphi
  • · Replies 15 ·
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Graduate Feynman's cargo cult, honesty in science
  • Andre
  • · Replies 6 ·
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6
What are some quirky physics blogs worth reading?
  • G.Ridley
  • · Replies 6 ·
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6
Graduate Calculating the Maximum Velocity of a Sheep in a Vacuum
  • Evo
  • · Replies 26 ·
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26
High School Is Autocorrelation of White Noise Zero?
  • newphysist
  • · Replies 1 ·
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Scientists claim breakthrough in antimatter hunt
  • HeLiXe
  • · Replies 3 ·
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3
High School Went along my uncle to get the natural gas cylinder refilled
  • jackson6612
  • · Replies 22 ·
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High School Can a Dry Pump be Reused for Vacuum Chambers? | lamonster
  • lamonster
  • · Replies 3 ·
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3
Undergrad What is the Voltage Measurement in a Parallel Battery Circuit?
  • Dadface
  • · Replies 15 ·
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15
Undergrad Resonance/ Natural Resonance Frequencies?
  • BrittMeredith
  • · Replies 1 ·
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1
Undergrad Does the conductivity of something
  • LogicalAcid
  • · Replies 1 ·
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1
Graduate Examples of asymmetry in (non-biological) nature
  • Karl Coryat
  • · Replies 2 ·
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2
Interesting Activity with a Paper
  • zorro
  • · Replies 18 ·
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18
Graduate Perimeter Scholars Lecture Archive
  • Kevin_Axion
  • · Replies 8 ·
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8
High School What Causes Mass to Attract Each Other?
  • markone
  • · Replies 3 ·
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3
Undergrad Compressed/Uncompressed gas combustion and Emissions
  • jon c
  • · Replies 9 ·
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9
Graduate Etymological link between moments and momentum?
  • pellman
  • · Replies 4 ·
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4
PBS Nova | Find Sketches on Gravity, Dark Matter & Strings
  • Neitrino
  • · Replies 2 ·
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2
Undergrad Conditions at the Centre of the Earth
  • John100
  • · Replies 34 ·
2
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34
High School Why Are There Different Notations for Scientific Symbols?
  • Elbobo
  • · Replies 4 ·
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4
High School Why Study Physics? A High School Commercial Contest in Alabama
  • flatmaster
  • · Replies 4 ·
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4
Mastering Equation Typing: Tips and Tricks for Beautiful Formulas
  • quantum123
  • · Replies 7 ·
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7
Graduate Einstein & Hawking: Delivering Theories Without Experiments?
  • Hyperspace2
  • · Replies 14 ·
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14
Does anyone know when the LHC will be open to the public again?
  • James1991
  • · Replies 15 ·
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15
Graduate Explaining the O'Hare Airport UFO (day events)
  • heldervelez
  • · Replies 44 ·
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Graduate LHC Doomsday Claims: Debunking an Alleged Catastrophe
  • Galteeth
  • · Replies 4 ·
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4
High School What was the satellite we saw near the moon and why were its signals visible?
  • Hoku
  • · Replies 7 ·
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7
Undergrad Understanding Doppler Shift: Impact on Sound Waves and Airplane Movement
  • jsmith613
  • · Replies 12 ·
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12
Can You Create a Physics Costume for an Anime Convention?
  • teraptus
  • · Replies 6 ·
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6
High School Tides & Gravity: Would Earth Still Have Tides Without Moon?
  • The legend
  • · Replies 3 ·
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3
High School Creating a Cooling System for Xbox 360 - James' Guide
  • Jim2010
  • · Replies 1 ·
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1
Undergrad Campfire Smoke: Blue Trees, Yellow Sky
  • Pranav Jha
  • · Replies 9 ·
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9
  • Poll Poll
Graduate Is the Ether Concept Equivalent to the Fabric of Space-Time in Physics?
  • grav-universe
  • · Replies 35 ·
2
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High School Physics of Triangles: Why Are They the Strongest?
  • dreit
  • · Replies 25 ·
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25
Undergrad Gravity-Powered Aircraft: Myth or Possibility?
  • rolls
  • · Replies 16 ·
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16
High School Can dropping an aerosol can make it explode?
  • hammertime
  • · Replies 5 ·
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5
High School Understanding the Definition of Relative: Simplified Explanation for Beginners
  • jamesfirst
  • · Replies 2 ·
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2
High School A high schooler looking for some complicated physics problems
  • Bassir
  • · Replies 27 ·
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27
Undergrad The Fundamental Principle of Standing Waves: Is it all about phase?
  • jsmith613
  • · Replies 76 ·
3
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Undergrad Standing Waves - Loud and Soft spots
  • VagrantPirate
  • · Replies 1 ·
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1
High School Sig Figs: Displacement of Car from Origin - 2.8x10^2 km?
  • ThomasMagnus
  • · Replies 11 ·
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11
Physics Intro by Dr. Donald Luttermoser | ETSU
  • Greg Bernhardt
  • · Replies 9 ·
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9
High School Best Parachute Design: Minimizing Material Usage
  • Aeroneer
  • · Replies 7 ·
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7
Undergrad Most Frustrating, Embarrassing Brain Farts
  • Jilvin
  • · Replies 18 ·
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18
What does this mean and how do you do it
  • staticclean
  • · Replies 2 ·
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2