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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.
Einstein vs Newton: Who is the Superior Physicist?
  • theoristo
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High School Will a Vacuum-Formed Elastic Sheet Create a Parabolic Shape?
  • CosmicVoyager
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Undergrad Can moisture be repel or attract using forces?
  • kevin_tee
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High School Percent uncertainty for noobs (like me)
  • Sin0
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Graduate How To Incorporate Sensor Uncertainties With Multiple Measurements?
  • 012anonymousx
  • · Replies 5 ·
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Undergrad How do famous physicists create their formulas?
  • timespeed
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Undergrad What are the Physics Behind Common and Uncommon Natural Phenomena?
  • MManuel Abad
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High School Tossing Coins: Can We Predict the Outcome?
  • quawa99
  • · Replies 8 ·
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New Chinese University Student Seeks to Learn About Physics
  • Palacekeep
  • · Replies 19 ·
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Graduate How to Propagate Errors Across Models?
  • nehajo88
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Graduate When is it ok to exclude data for a model to fit better?
  • elegysix
  • · Replies 25 ·
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Undergrad Equal flow distribution to 3x3 grid
  • syphex
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How unrealistic are super powers?
  • MathJakob
  • · Replies 36 ·
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Undergrad Forced Vibration: Amplitude Of Vibration Changes Periodically?
  • roshan2004
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Undergrad Confused how to use calculus in physics
  • jaydnul
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Undergrad Prof. Walter Lewin Explains "That's that rho of s
  • anhnha
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Graduate Questions about the physics of the trumpet
  • keigoh
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Why we always say that time is forward?
  • Sivasakthi
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High School Archimedes' Weapon: Focussing Mirror Melts Car in London
  • epenguin
  • · Replies 11 ·
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High School Is It Risky to Use Mobile Phones in Lightning?
  • Manula
  • · Replies 10 ·
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High School Possible webpage title: What is the Definition of Wavelength in Physics?
  • ankit.jain
  • · Replies 15 ·
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How much water is needed to float a ship
  • Fizzicfanatic
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High School How do you know if someone far away is walking towards you or away
  • Perrault
  • · Replies 21 ·
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High School Biophysical? Does the room feel colder?
  • Alltimehigh
  • · Replies 11 ·
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High School Dots on physics equations. What do they mean?
  • epislon58
  • · Replies 18 ·
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How can physicists make the world a better place?
  • nst.john
  • · Replies 28 ·
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High School What are the main branches of physics?
  • Avichal
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  • Poll Poll
Undergrad Is this a waveform or random data?
  • MickN
  • · Replies 21 ·
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Graduate Planck and Boltzmann Distribution
  • lonewolf219
  • · Replies 3 ·
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Fund Your Research: Physicists, Build Your Business & Reach Your Goals
  • Akaisora
  • · Replies 5 ·
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Graduate Significance of orthogonal polynomials
  • lonewolf219
  • · Replies 4 ·
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Undergrad Difference between nano physics and nanotechnology
  • Abhilash H N
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Undergrad Calculating Radiosonde Track: Altitude, Wind Speed, Temperature & More
  • pedrobele
  • · Replies 15 ·
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Undergrad Why Mild Steel has two Yield Points ?
  • phydis
  • · Replies 1 ·
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Graduate Understanding the Meaning of Mass Squared and Weighing 8.7 kg2 Explained
  • johann1301
  • · Replies 7 ·
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Welcome Matthew! 14 Yr Old Theor. Physicist w/ Asperger's
  • blokpoi
  • · Replies 8 ·
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Cooking Splatter: What Happens & Why?
  • bjarnidk
  • · Replies 20 ·
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High School What happends when you cut something in half?
  • epislon58
  • · Replies 6 ·
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Need help finding comic about refuting belief in gravity etc.
  • QuantumCosmo
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Graduate Can Relativity and Quantum Theory be Applied to Infinity?
  • Adrian07
  • · Replies 21 ·
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High School MRI Headphones: Non-Metal Conductors Explained
  • noahsdev
  • · Replies 3 ·
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Undergrad Why did the ISS cost so much money?
  • MathJakob
  • · Replies 6 ·
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Graduate What is the Dynamic Scaling Theory for Ultrasonic Absorption in Binary Mixtures?
  • wonder phy
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Undergrad What Is Energy and How Can We Define It?
  • Epicurious
  • · Replies 15 ·
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Undergrad Symbols used to represent surface area Ratio in Refrigeration
  • recreated
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Graduate Unraveling the #1 Mystery in Physics: Is There Order in Chaos? | LiveScience"
  • TeCNoYoTTa
  • · Replies 9 ·
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High School How does energy and forces interact?
  • abi.ayan
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Undergrad What known equations have units s²/m² ?
  • Fieldwaveflow
  • · Replies 13 ·
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High School Dalton's Law: Why is My Answer Wrong?
  • bwd111
  • · Replies 1 ·
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High School Is resistor a conductor or an insulator?
  • RonZ_RknoB
  • · Replies 4 ·
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Check out the Perseid meteor shower....
  • MarkFL
  • · Replies 13 ·
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Who is Celebrating Their 126th Birthday Today in the World of Physics?
  • davenn
  • · Replies 9 ·
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High School Where can I find beginner-friendly physics videos to understand the universe?
  • conure
  • · Replies 1 ·
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I'm a Portuguese physics student willing to know people like me
  • tsuwal
  • · Replies 8 ·
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Can You Rap Your Way Through Physics?
  • MathJakob
  • · Replies 8 ·
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Graduate Computer Simulations and Their Importance
  • radoo
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Undergrad What does it mean to model an object?
  • susskind99
  • · Replies 7 ·
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Undergrad What was the first continuity equation?
  • copernicus1
  • · Replies 8 ·
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Undergrad Can Scalar Wave Communication Be Interfered With or Enhanced?
  • otpisani
  • · Replies 8 ·
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High School Explain Energy (is it physical)?
  • xmenfan
  • · Replies 65 ·
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Undergrad Exploring the Unknown: The Fear and Fascination of Scientific Discoveries
  • MathJakob
  • · Replies 57 ·
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News Help find the script of a short video about Curiosity
  • lesieux
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High School Question about Specific Gravity.
  • Suarden
  • · Replies 2 ·
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Feynman's Best Science Quotes on Matter, Energy, & Life
  • theoristo
  • · Replies 9 ·
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I feel like my passion for science is gone. IDK how to get it back.
  • wotanub
  • · Replies 15 ·
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News Pitch Drop Experiment: Finally Captured on Camera!
  • lisab
  • · Replies 10 ·
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Using steam to force out fumes in apartment
  • gauss44
  • · Replies 7 ·
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Graduate Derivation of formula for capillary action
  • jd12345
  • · Replies 3 ·
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High School Discover 25 Exciting Maritime Physics Ideas for High School Students
  • Gersty
  • · Replies 11 ·
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Average IQ of professional physicists/mathematicians?
  • Tim92G
  • · Replies 14 ·
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Introducing Myself: Learning About the Universe
  • CosmicEye
  • · Replies 9 ·
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Graduate How Can We Detect a Hidden Human Presence Without Using Traditional Senses?
  • scottsational
  • · Replies 14 ·
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Know of any Funny Physics Jokes for Shirts?
  • digipony
  • · Replies 14 ·
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Graduate What is the latest breakthrough in stopping light?
  • MathJakob
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Undergrad Is Your Understanding of Wonky Science Leading You Astray?
  • tejolson
  • · Replies 3 ·
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Undergrad Is the Law of Attraction Connected to Quantum Physics?
  • ArunX
  • · Replies 1 ·
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Graduate The Story of Energy, or How To Write Garbage
  • ZapperZ
  • · Replies 12 ·
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Who's the smartest living physicist?
  • theoristo
  • · Replies 6 ·
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Undergrad Optimizing String Placement for Accurate Friction Experiments
  • kiddiegrade
  • · Replies 5 ·
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High School Why did the crude oil train crash and explode in Canada?
  • arydberg
  • · Replies 16 ·
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Science museums, monuments and tours in europe
  • Fabric
  • · Replies 10 ·
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Uncovering the Science Behind Squeaky New Sneakers
  • nst.john
  • · Replies 2 ·
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Stephen Hawking warning that our extinction is on the horizon
  • Greg Bernhardt
  • · Replies 65 ·
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Graduate What did you get out of 1000 hrs. of Susskind lectures?
  • DiracPool
  • · Replies 36 ·
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Graduate What direction is a shrinking cube going + logical problem
  • Caveat
  • · Replies 7 ·
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High School Does nth Harmonic Always Produce n Loops?
  • oneplusone
  • · Replies 2 ·
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High School Why multiplication produces new uniits but not addition or subtraction
  • jd12345
  • · Replies 7 ·
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Graduate Is it possible to calculate in physics with different sets of axioms?
  • silenzer
  • · Replies 6 ·
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High School Gravity Weaponry: Fact or Fiction?
  • darkxponent
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Graduate How do irrational numbers play a role in physics?
  • bhpv
  • · Replies 4 ·
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Can Protons Pass Through the Brain?
  • OmCheeto
  • · Replies 6 ·
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Undergrad Calculating PSI to KW Conversion | Dale's Questions
  • daleb
  • · Replies 7 ·
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Undergrad Would a big enough manmade metal sphere have gravity?
  • ZionsRodeVos
  • · Replies 28 ·
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Undergrad Solving Oxygen Flow Rate Issue with One Cylinder
  • tacticsnz
  • · Replies 3 ·
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Graduate How Does Dr. Ian Chapman's Research Impact Nuclear Fusion Technology?
  • Astronuc
  • · Replies 1 ·
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Undergrad How can an isolated system be defined and applied in different contexts?
  • minhty96
  • · Replies 1 ·
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Graduate Will Quantum Mechanics & Relativity Stand the Test of Time?
  • |mathematix|
  • · Replies 3 ·
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Undergrad How to Calculate Air Flow Through a 1/4 Inch Pipe at 90 PSI?
  • Norm Koster
  • · Replies 6 ·
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Looking to purchase some Mu Metal but
  • solar71
  • · Replies 2 ·
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Graduate What will be the next big thing in physics?
  • |mathematix|
  • · Replies 23 ·
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