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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.
Understanding Atom Excitation: Natural vs Triggered Movement and Photon Emission
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A few little questions about force
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What is the relation between redshift and absorption lines in galaxies?
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How to calculate the required force necessary for orbit
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Do Passive Night Vision Scopes Exist Without Electronic Amplification?
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Road trip Which option is the best roll-on?
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Calculating the Entry Area for a Funnel to Increase Air Speed
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Meat-eors: How fast does a steak need to travel to cook completely?
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Calculating energy requirements for heavy runners
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How Do You Calculate the Motion of an Object on a Sine Wave?
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If the object ends up at its initial point
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Explaining Microscope Functionality using Funsci's Lens Layout | Need Help
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Why everything is shaped like a circle?
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Igniting Gunpowder with a Battery
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What advantage of oil in hydraulic brake over air?
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Why is the a=dv/dt equation used in integration and when is it applicable?
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Combining two decibel values vs dissimilar values
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What Is the Casimir Effect?
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What Are the Key Differences Between Electrons and Positrons?
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Where Can I Download Free Science Books?
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Can Wireless Power Transmission Achieve the Speed of Light?
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Witricity - I'd like some opinions
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Can Teleportation Solve Our Environmental Problems?
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Uncovering the On/Off Ratio of Silicon Transistors
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Antimatter Bomb: Real or Fiction?
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Explain the 90 degree rule in Billiards
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What is Exergy? | Learn About Energy & Its Variations
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Can the Michelson-Morley Experiment Prove That Space is a Vacuum?
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Can Anything Float in a Superfluid?
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Why is the Rayleigh Criterion not a definitive resolution limit for microscopes?
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Purpose of Entrance Slit in Spectrometer: Rgds Evidenso
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Why 1000s of acres antenna needed?
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Blue Pool - colour change phenomenon
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What exactly is a wave? What is it made out of?
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Plumbob creating designs in sand?
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Why does a fluid exert an upward force?
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Hysteresis in Hall Probe Calibration Curve
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Limit to the strength, the hardness, and the density of a material?
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How Can Gravity's Constant Be Considered Uniform Near Earth's Surface?
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Time Travelling-Very Intereting Conversation
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Wave Propagation in Discreate Mediums - Help Needed
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Strange Radio Reception from TV Speakers: Possible Causes and Solutions
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Theoretical Armor Question - Joules Conversion
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Easiest Cavendish G experimental setup
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Sonar & Wave Qs: High-Freq Signals, Resolution & Feasibility
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Can the other two cameras provide a better pictuer?
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What Would Happen to Astronaut A in a Rotating Spacecraft Access Tube?
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How to prevent ice from forming?
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Will Two Identical Spherical Cavities in Free Space Attract or Repel Each Other?
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Why Does Wavelength Impact Passage Through a Hole?
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Satellite is in low orbit around the Earth
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Polishing a BK7 Prism to 4020 Scratch Rating
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Help prove something mathematically
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Sun vs. moon - affects on tides.
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Calculate Height of Object in 9 secs
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Energy loss in the doppler effect?
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Experimenting: Finding Out What Affects Wood Block Tip Height
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Applications of realitivty once we can travel at near c
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Is Gravity Weaker than Other Fundamental Forces?
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Does the heart pumping and movement of blood affect body weight?
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History of Physics: Newton or Later Development?
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Something I have always wondered.
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Pushing At Different Heights with Same Force: Ideas
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Resonant Frequencies of Coaxial Cylinders
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How can I ignite these three rocket igniters?
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What Are the Key Principles Behind the Design of the Bourdon Gauge?
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What is the Brilouine Zone and where can I learn more about it?
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Can I Use a 2/3" CCTV Lens on a 1/3" Camera?
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Series of physical events in an exothermic reaction
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Why are there so many different symbols for scientific equations?
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Boggling result of venturi experiment
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Can a nuke crush a volcano's slope?
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What Are the Four Fundamental Forces of Nature?
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Weighing a Ladder While Leaning Against a Wall?
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Why is the concept of amount of substance as a quantity confusing?
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A: "Transforming Coal into Diamond: How Much Does One Pound of Gold Compress?"
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Preesure changes in fliud movement
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Does Color Depend on Wavelength or Frequency?
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Understanding the Gas Constant: A Key Concept in Thermodynamics
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Golf Club Impact: Momentum, Friction and Loft
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Designing a Coke Bottle Submarine Experiment
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Rocket Stop Time & Distance: 3.156kg, 28.72 m/s
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How can I launch a rocket from 200 feet away?
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Make Explosive: Best Cheap Recipe for Power
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Does Young's Modulus Affect Volume Changes in Solid Materials?
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  • Poll Poll
Energy Efficiency: Email vs Letter
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Is the force exerted on the rope 10 KN or 20?
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Uncertainty Principle and the size of an atom
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Plane after take-off to heavy to climb to cruising altitude?
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Discovering the Science Behind Shiny Metals
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The Concept of Flux in Electromagnetism: Exploring Gauss' Law
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Why Does EM Radiation Penetrate Materials Differently?
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Eliminating noise from Excel Data
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Calculating Video Recording Capability of 4500 ft Object w/ Camcorder
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What is the reason for Gravity ?
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How Much Extra Force is Needed for Efficient Pogo-Stick Jumping?
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Does Gravity Exist or Is It Just a Bend in Space-Time?
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Understanding Gauss' Law to Divergence and Charge Determination
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Can a Small Canister Withstand He Gas Pressure?
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Explaining the Physics Principle of Vortex Coolers
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