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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 it possible to use technology from a nervous system?
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Undergrad Error Propagation (Percentage) - sin(x)^2 / x^2
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High School Why are only some parts of this ice block cloudy?
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High School Dimensions of A and B are different, how to express?
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High School Understanding dv/dt: A Beginner's Guide to Calculus Concepts
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High School Can Cement Dust Cause Electrical Malfunctions?
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Undergrad Another butterfly making tornadoes thread
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Undergrad What Are the Scientific Names for These Physical Movements?
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Undergrad What are the dangers of misinformation in science reporting?
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Graduate Why Is Chaos Deterministic and Not Random?
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2017 Nobel Prize in Physics - Opinions and Expectations
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Insights An Analysis of Road Capacity - Comments
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Undergrad Trouble with Humboldt H12090 aspirator vacuum pump
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Undergrad Effects of Ultrasonic Transducer in contact with glass
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Undergrad Fitting Curve by Exponential Growth Function - Rajini
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Undergrad What if everyone on Earth starts bursting crackers for one day?
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News Have you visited the LHC in Copenhagen?
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Graduate GR vs SR: Which Theory Reigns Supreme in the Scientific World?
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Undergrad Mimicking Gravity with Magnetism and Angular Momentum
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High School What exactly happens when touch a surface
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Undergrad Can someone explain this equation for Reynolds' number?
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Undergrad Maximum size a mammal could grow to?
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High School Must two quantities have the same dimensions
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High School Question about 1986 Challenger incident
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Graduate Gravitational Waves: The 2017 Nobel Prize Surprise?
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High School Who said Fidget Spinners were boring?
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High School A Question about Effect of Surface Area on Loudness
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High School How should I even begin to understand physics?
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Undergrad Uncertainty Analysis: Understanding Errors in Quantity Measurements
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Graduate Is there a PF section specifically for classical and quantum entropy?
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Undergrad Is sand a better conductor than clay? And why?
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High School Plural of henry?.... henrys? henries?
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High School Is mass a measurement of energy?
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High School What is the Physics behind Smells?
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Graduate Degrees of freedom and dependent sample variances
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High School Mastering Physics Problem Solving: Tips and Rules for Success
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Undergrad Calculating expected number of measurements
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High School What are the dimensions/units of Evaporation?
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Undergrad Negative values for Gaussian Distribution
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Neil De Grasse Explains His Communication Tips
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Undergrad What Materials Absorb IR The Best?
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High School Is Energy Constantly Changing Its Location?
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High School Why the energy that waves transfer is only dependent on amplitude
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High School What is scientific and what is not?
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Random thoughts thread while microwaving dinner
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Graduate Questions about Taylor dispersion in laminar pipeflow
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Graduate Flow in Porous Media and Granular Beds
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Undergrad Emission spectra of different materials
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High School High School Science Fair Ideas: Unique Research Projects
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Undergrad Question about finding resonant box dimensions
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How Did Feynman's Unique Teaching Style Transform Problem Solving?
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High School Why did it take 100 years approximately for the idea of energy to be accepted
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Undergrad If AI could replace physicists why should we still research?
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Undergrad Distinctions among the concepts: mass, matter, energy
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High School What Is Physics?
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Undergrad What good is it? << Where did this phrase come from?
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High School How is a Vaccum mathmatically described?
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High School Is energy just change that is quantified
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High School Do Quartz Crystals in Ancient Structures Emit Energy?
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High School SONAR: Echo vs Reflection of Sound Waves
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MHB Solar Eclipse 2017 - Share Your Viewing Plans & Memories
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High School What is the reason for the Emergence of properties?
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Looking for the Vintage movie on Physics -- shows swimmer diving
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Undergrad Fluid transfer low flow to high without a pump
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High School How can one turn diamond powder back into hard stone form
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High School Elements capable of cooling without compression?
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Undergrad How does a magnetic field affect the aggregation of nonpolar molecules in water?
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High School Understanding Perception: The Role of Our Senses in Interpreting Mass and Colors
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Graduate Dimensionless Units: SI Reform for Clarity & Precision
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Undergrad Will Increasing Tension of a Two Loop Standing Wave Change its Frequency?
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Undergrad Thermal Tumbler and unusual noise....
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High School Accuracy of moon orbiting earth in how many days and hours
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Member of the Poincare or Lorentz Group
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Undergrad Why Is There No SI Unit For Information?
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Undergrad Random Question About pushing a pole at c
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Undergrad Why is this balancing technique easier for some cultures than others?
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Undergrad Fans with 3 blades vs. 6 blades (noise, efficiency)?
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High School You normally go through B and C when passing from A to D
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High School What Is the Significance of the Constant c in Wave Equations?
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Undergrad The length of the visible horizon
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High School Pocket size molecular spectrometer
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Undergrad What Causes Huge Raman Shifts in Water?
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Online video lectures about principles of GPS?
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High School Optimal Technique for Opening Windows on a Moving Bus: Push or Pull?
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Undergrad Energy perspective on deterministic intelligence
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Undergrad Understanding Measurement Uncertainty: Calculating Accuracy and Precision
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Graduate Physicists create 'negative mass'?
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Insights Assessing the Physics in Edmond Hamilton's "The Second Satellite" - Comments
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Nailing the Physics Forums: Relativity, QM & BTSM
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Undergrad Is the following equation a wave?
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Undergrad What is convection in a serpentine flow field?
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Undergrad Why is there a sonic boom at Mach 1.5?
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High School Reporting length with error limits
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High School Physics of transients -- general
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High School Can a Wave Exist Without a Medium?
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High School Equation for Conductivity of Aqueous Solutions
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High School How high does a wall need to be to block smoke?
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High School Can orbiting lcds replace radio towers?
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Graduate Increase Near Field Coverage & Power Use: Can It Be Done?
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Graduate Why is math essential for understanding physical phenomena?
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