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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.
I want to make friend with who love physics
  • kieutridang
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Undergrad Can mass be compressed indefinitely?
  • envelope91
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Graduate What Are the Negligible Aspects of Physics We Overlook?
  • Fine Man
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High School Mars Rover "Curiosity" Camera Specs
  • jnorman
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18
Answering Multiple Questions on One Topic: Vital Steps
  • azizlwl
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Undergrad Physics Student Struggling to Explain Conservation of Linear Momentum
  • ShayanJ
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Most difficult to comprehend concept
  • mather
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15
Undergrad How is oil naturally pushed to the top of reservoirs?
  • Charles123
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4
Graduate What causes metals to cold weld in a vacuum?
  • Arixal
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1
High School How Can Everyday Observations Reveal Scientific Phenomena?
  • bamabhai
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16
High School Need Help Explaining a Physics Video? Let Us Help! | Expert Tips
  • projectearth
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8
High School IPhO experimental exam preparation
  • n10Newton
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1
Graduate Inorganic life now likely? (Its life, Jim, but not as we know it)
  • Robert100
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Undergrad Guitar fret decreasing down a guitar
  • ramly
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6
Graduate Fluorescent Lamps: Why Phosphor Drops Off in Efficiency & Mechanisms
  • Charles123
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3
Is Chaos Truly Nonexistent in a Digital World?
  • JD1
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20
Undergrad Did a Clock Error Make Neutrinos Appear Faster Than Light?
  • dart plegius
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2
High School Trouble due to incomplete knowledge
  • Avichal
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6
Undergrad Inside a container with non-pure helium
  • papernuke
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25
Undergrad How will current research affect our lifes?
  • magnetic flux
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10
Graduate Wave through a compressbile material
  • hoomanya
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12
Undergrad Engeeniring Physics Bachelor question
  • jenia1
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2
High School What Causes Air Bubbles to Form in Pools and Lakes?
  • schaefera
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7
Undergrad Help with mistakes in the presentation
  • katasroffa
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4
Undergrad Heisenberg, genius and idiot at the same time
  • g.lemaitre
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12
Undergrad How do I calculate the mass density, given the mass?
  • silmaril89
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11
Graduate What areas in physics would you like the Theory of Everything to explain?
  • Rorkster2
  • · Replies 26 ·
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26
High School What physicist said SR would be garbage by 1945?
  • g.lemaitre
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2
Physics Legacy: The Bragg Family's Nobel Prize-Winning Contributions
  • Loren Booda
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13
Undergrad What if overtone is not achieved?
  • Mr Checkmate
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8
Undergrad How Does Pascal's Principle Affect Fluid Dynamics and Comfort in Bedding?
  • Aristotelian
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1
Graduate How time did Einstein waste on a unified field theory
  • g.lemaitre
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1
Graduate What exactly do we mean by nothingness? Im asking about when this
  • moatasim23
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1
Undergrad What is the difference between t0 and ti?
  • ihaveabutt
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3
Undergrad Does Low Resolution Compromise Measurement Accuracy?
  • Arm_Chair_QB
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2
Undergrad How to draw 2d objects on 1d paper?
  • thatisthat
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1
High School Why does diffusion always go down the concentration gradient?
  • TVI_1405
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16
High School Mass vs Size: Does Size Affect Mass?
  • raeshun
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2
Undergrad What is the size and behavior of atoms in relation to celestial bodies?
  • orionis
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8
High School Help with liquid transfer through tube
  • shnabz
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14
Undergrad Understand Phase & Dimension: Self-Taught Guide
  • Stu21
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2
Undergrad What Are First and Second Order Changes?
  • khil_phys
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1
Why Do Scientists Prefer the Kelvin Scale for Temperature Measurements?
  • Redbelly98
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3
Graduate Units of Volume in Deriving Boltzmann Constant
  • leavezs
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1
High School Wax Rubbed on Paper: Why Paper Becomes Translucent
  • khil_phys
  • · Replies 9 ·
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9
Undergrad Cathode Ray Tube: Explaining Phenomena with Green Beam and Fluorescent Glow
  • ananthu
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7
High School Why are we able to feel the textures of objects.
  • ntovar73
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7
My friend is insufferable and thinks astro is a waste of time
  • curiouscase
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22
Undergrad Measuring Length, Area & Volume: Classical vs Quantum Physics
  • geordief
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1
Writing questions out is better than asking them
  • g.lemaitre
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Graduate Planck time/length infinite and defined?
  • jarroe
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5
High School Are ghosts real or just a scientific phenomenon?
  • conn96
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Undergrad What Is the Best Motion Analysis Setup for Simple Physics Experiments?
  • Andy Resnick
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Undergrad How Should We Mine Asteroids: Robots or Humans?
  • DahnBoson
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Undergrad Is the Cheerios Effect Analogous to Gravity?
  • InquiringMind
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Graduate Fastball Physics: Relativistic Baseball
  • Simon Bridge
  • · Replies 8 ·
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8
Graduate Idea to intercept alien communications
  • Petyab
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How Can Someone with a Disability and a Passion for Physics Find Fulfillment?
  • Boston_Guy
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High School What is between the erath and the moon?
  • jmmpna
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Graduate Wetness of object after submerging in fluid
  • gonzaa16
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High School What is the mysterious particle that caused a solar paradox?
  • abhigupta.14
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Feynman diagram tattoo suggestion
  • -Sirius-
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Undergrad Scientific principles involved in Pan flute
  • zabachi
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6
Undergrad Why is the range of gravity considered infinite?
  • AustinJones
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6
Undergrad Is There a Software for Simulating Capillarity Action in Various Shaped Tubes?
  • IWantToLearn
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Graduate Can Magnet Doors Launch a Spaceshuttle into Outer Space Without Using Fuel?
  • partisar1
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Graduate Understanding dE = d slash Q + d slash W Notation: Explained by Experts
  • genericusrnme
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Undergrad Is Telekinesis Scientifically Possible?
  • Snip3r
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29
Undergrad Why Does Moving Medium Not Change Detected Frequency?
  • mathman44
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1
Undergrad Where Do Optics and Photonics Fit in the Classification of Physics?
  • ShayanJ
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1
Graduate How to calculate the bonding force due to wringing effect in slip guages
  • prabhu_15
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Undergrad Can Branching Capillary Increase Water Height?
  • Medicago
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Getting Help with Patent Funding for Climate Research
  • niksmith94
  • · Replies 1 ·
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News Proof of 'God particle' found (?)
  • Topher925
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2
Undergrad What is the Effect of Ferrofluid Surfactant on Particle Repulsion?
  • wolfspirit
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Can matter be perceived directly?
  • Dremmer
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2
Undergrad Expert Advice: Essential Physics Topics for Undergraduate Students
  • ShayanJ
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8
Did Albert Einstein Say "Everything is Energy"?
  • mess1n
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20
Undergrad What causes the bursting of a spherical air bubble?
  • jobsism
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2
Graduate Can We Identify Precise Margins Between Phases in Biphase Material Imaging?
  • mather
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4
High School What are some nice modern physics experiment that I can do?
  • elishamei9000
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High School Does anybody know what this apparatus is for?
  • thatgameguy
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2
High School Why is Air Invisible to the Naked Eye?
  • Swetasuria
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2
Undergrad Does Running in the Rain Keep You Drier?
  • PhizKid
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4
Graduate How Can I Get My Physics Theory Published?
  • Plunewtonian
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Graduate What is the name for a curve similar to a blackbody radiation curve?
  • DaleSwanson
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High School Portal Physics Scenario: A or B? Input from Physics Forum Community
  • kidcrumb
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7
Undergrad Forum Etiquette inquiryIs it rude to ask how to design a home project?
  • mikedunbar
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What Does Nothingness Really Mean?
  • nick1o2
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Undergrad What Are Some Recommended Review Articles in Physics?
  • highflier
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4
  • Poll Poll
If you had nothing pressing to do, would you look at the ISS?
  • collinsmark
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Graduate The problem of infinite divisibility and how QE sheds some light
  • San K
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20
High School How Long Is the Piano String for the 3rd Harmonic?
  • xuhhad
  • · Replies 4 ·
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4
High School Why do planes cause vibrations on the ground as they fly pass?
  • autodidude
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5
Graduate Is there a Young-Laplace equation for solids and gases?
  • sebassen
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2
Graduate Is the allotropy of nitrogen tetranitrogen,
  • ybhathena
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3
Undergrad Is Relying on Integral Tables Over Manual Calculation Common in Physics Careers?
  • dipole
  • · Replies 17 ·
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Graduate Metropolis Algorithm and integration volume
  • Derivator
  • · Replies 1 ·
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1
Welcome Sammy! Physics Forum Community Here For You
  • Sammy600
  • · Replies 7 ·
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7
High School Write physics extended essay (IB)
  • alireza1992
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6