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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.
High School Is Cold a Universal Phenomenon in Space?
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Undergrad Is My Metal Sample a Conductor or Semiconductor? Discover with This Experiment
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Undergrad The worst written science article I've ever seen a journalist produce
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High School How Do Metronomes Achieve Synchronization?
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Is Joseph Newman's Energy Machine a Hoax?
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Graduate Tesla's Dynamic Theory of Gravity: Unpublished and Unexplored
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Undergrad Biefeld-Brown Electrogravity Theory- A hoax or something else?
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High School What is Nanotechnology?
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Any good Physics Interactive Programs out there?
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High School Is humid air really heavier than dry air?
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Graduate How Do Bayonet Connections Function in Cryostats for Liquid Helium Transfer?
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Graduate Strategy for destroying a 6 km wide asteroid
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Is this a formula or just nothing?
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Undergrad Calculating Density Alttitude of Air knoing temp/baro/humidity?
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Graduate Feynman's Orange Riddle: Impossible or Not?
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Undergrad Understanding the Gravitational Constant: Equation, Impact, and Controversy
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High School Galactic Alignment: Explaining 2012 Hype
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Undergrad Is Solving Physics Problems the Only Way to Understand the Subject?
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Undergrad Need Suggestions For An Experiment - Upper Division Undergraduate
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High School Dirty snow (snirt) & melting point
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High School Chosing appropriate letters (labels)
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Graduate What is your opinion about Arrhenius' announcement?
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High School What Would Happen If a Vacuum Tube Connected Earth and Space?
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Gravity's Race/ Contest Who wins?
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High School Fluid as a medium to transfer electricity
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Undergrad What is the Unit 'a.u.' and How to Convert it to SI?
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High School Hubble mystery light puzzles astronomers
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High School Why do air bubbles form at the bottom of a glass of sparkling wine?
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High School What makes Saturday's full moon the biggest of 2009?
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Undergrad Need help with astrophysics terminology
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Discover the Bicyclist's Paradox for a Memorable Holiday Adventure
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High School How Do You Calculate Gain in Sinusoidal Signals?
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Graduate Does Einstein's belief in a new ether contradict the principle of relativity?
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What Makes Gravity Such a Mysterious Force?
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How can I quickly and effectively clear frozen pipes in my home?
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Graduate Had we already abandoned falsifiability?
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Graduate Is Time Static Like Other Dimensions?
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High School Who Discovered Sun = Center of Solar System?
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Graduate Are Cosmologists Sheep or Crackpots?
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Undergrad Brewing Wort: Calculating Boil Length for Desired Gravity
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Undergrad Why Pursue a Unified Theory in Physics?
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High School Seeking easy to understand science facts behind simple experiments
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Undergrad Daredevil Robbie Maddison completes Vegas jump
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High School Is a 100 kg Cotton Bag Heavier than a 100 kg Iron Bar?
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Undergrad What Are the Practical Applications of Anti-Gravity?
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What's the probability of someone's getting thunderstruck
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High School Is There a Doppelgänger of You Somewhere in the Universe?
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High School Fundamental equations that are at the root of all physics?
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What happened to me? I have lost my love for Physics
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Undergrad Question about naked swimming at great depth after pressurisation
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A Physics Opera on TV tonight (USA)
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Graduate Why phase transition not possible in one dimension?
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Graduate Dual wave-particle' property of electrons
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High School Why is it so hard to reach the Moon?
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Graduate Factors Affecting Gravitation Constant: Understanding G in Cavendish Experiment
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Undergrad What is the Meaning of 'w' in an EOS Equation?
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Graduate Schroedinger's Cat and Uncertainty
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Undergrad Sailing Downwind Faster Than The Wind
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Undergrad No-one knows the answer to the tenth question ('cept me)
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Graduate Force vs. Mass: Investigating Fundamentality
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  • Poll Poll
High School Testing IR Sensitivity: My Experiment
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Is Last Night's Sunset a Sign of the Green Flash Phenomenon?
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Graduate Understanding Dimensional Analysis: Simplifying Fluid Flow Equations
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Graduate What is the relationship between units of time and space in relativity?
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Graduate Shawyer's EMdrive: Lift a Car Against Gravity?
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Undergrad What Are the Alternatives to Nanotechnology?
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Undergrad Answer this if you know your physics?
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High School How do you make a near-perfect vacuum?
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High School Physics Olympiad US: Register by Dec 19th - Deadline?
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Undergrad Wave energy ~ wave height squ. or wave amplitude squ.?
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High School Is Time Magazine Misrepresenting How Energy and Power Are Measured?
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Undergrad Measuring cross-sectional area of a cable
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High School Physics Mobile Ruler: Understanding the Basics
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High School Can a super strong rope cut through the Earth's surface?
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Graduate Time - a Dimension of Physics or Mathematics?
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Got any physics-themed dish ideas for a cookoff?
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Explaining the Noisier Winter Wind Phenomenon
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High School What are Waves, Troughs, and Crests?
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High School Head First Physics - view book via Safari trial or Google
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High School What scientist predicted the end of physics in the late 1800s?
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Train goes through a tunnel your ears pop a little?
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High School Can you give a couple of examples of chemical energy?
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Undergrad Goodbye Polaroid Film: Physics Labs Say Farewell
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High School Does a flag always have to be attached to a pole to wave?
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Undergrad The Mystery of Earth's Opposing Tide
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High School Understanding Food as Chemical Energy
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Undergrad How Does Energy Influence Our Understanding of Inertia?
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High School Why do noodles make the soup boil?
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Celebrating Success: I Passed My Physics Final!
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Undergrad Bullets from a Jet Fighter Mach 3.2
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Graduate Is There a New Theory for Ball Lightning?
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High School A sonic boom sound vs explosion sound
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  • Poll Poll
Undergrad How will Lightness do in December?
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High School Do you think Dumbo could actually fly?
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Graduate Does Observation Truly Collapse a Wave Function?
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Undergrad How Does Liquid Helium Climb the Sides of Its Container?
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High School Static Electricity Woes: Solving My Jacket Problem
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High School More atoms in a cup of water, than cups in an ocean?
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Hawking Moving to Waterloo (Perimeter Institute)?
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Graduate How Does Physics in the 21st Century Address Its Sociopolitical Challenges?
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