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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.
Hydraulic System Solutions Cambridgeshire | Design, Supply & Install
  • Niko Napier
  • · Replies 1 ·
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Can Ghostly Images Be Captured Through Time in Photographs?
  • USCadam89
  • · Replies 10 ·
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10
Undergrad Could Earnshaw be only thinking inside the box
  • Mack7963
  • · Replies 6 ·
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6
Graduate Is It Better to Run or Walk in the Rain?
  • Simon Bridge
  • · Replies 5 ·
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5
High School Is chlorophyll green or green?
  • kmm
  • · Replies 19 ·
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19
Graduate Beat the Heat: Stable Torus Propagation in Water
  • dipole
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5
Undergrad Concerning vibration sustain, wire mounted to wood base and metal base
  • tonequester
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4
Graduate Phase cancellation with opposing and unequal audio frequencies.
  • tonequester
  • · Replies 17 ·
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17
How physics get done not what you might expect
  • Naty1
  • · Replies 13 ·
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13
Graduate What do we mean by nonlinearity in physics? ('cause wikipedia sucks)
  • piareround
  • · Replies 10 ·
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10
Cooling a 10x20 Shed: Tips & Tricks
  • icor1031
  • · Replies 3 ·
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3
Can physics function without math?
  • Dash-IQ
  • · Replies 37 ·
2
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High School What is difference between rapid combustion and turbulent combustion
  • taregg
  • · Replies 1 ·
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1
Can Physics Predict the Future?
  • Quarlep
  • · Replies 2 ·
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2
Undergrad How to make a liquid with specific gravity?
  • Zhabiz
  • · Replies 1 ·
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1
Undergrad Does gravity apply to ionised objects?
  • tinypositrons
  • · Replies 5 ·
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5
Graduate Contour Integrals in complex analysis questions
  • nabeel17
  • · Replies 4 ·
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4
High School Indoor vs Outdoor Stadium noise levels
  • JJT211
  • · Replies 1 ·
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Graduate Do Fourier transforms always converge to 0 at the extreme ends?
  • nabeel17
  • · Replies 4 ·
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4
High School If you had 10 minutes to teach someone Physics
  • tdmarz22
  • · Replies 24 ·
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24
High School Good Puzzles/ Interview Questions
  • bananabandana
  • · Replies 1 ·
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1
Undergrad Cathodes/Anodes in Chemistry and Physics
  • quanticism
  • · Replies 4 ·
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4
High School What kind of tools do physicists use?
  • nst.john
  • · Replies 5 ·
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5
Undergrad Creating a Silent Dartboard: Physics & Solutions
  • boffinwannabe
  • · Replies 6 ·
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6
Undergrad Spherical Coordinates: Understanding Theta Equation
  • MattRob
  • · Replies 4 ·
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4
Undergrad What distinguishes plane waves from wave packets in physics?
  • gentsagree
  • · Replies 7 ·
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7
Uncovering the Mystery of Deeper Footprints in the Sand: East vs. West
  • Baluncore
  • · Replies 3 ·
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3
Undergrad Why Are Detectors for Molecular Vibration Frequencies Less Common?
  • kye
  • · Replies 13 ·
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13
Graduate Is Everything in Our Universe Absolute or Relative?
  • quawa99
  • · Replies 21 ·
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21
Undergrad Complex Conjugation in the Continuous Time
  • EngWiPy
  • · Replies 4 ·
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4
Graduate Why topological invariants instead of topological invariances?
  • mmssm
  • · Replies 1 ·
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1
New to the Forum & Need Paper Subject Suggestions
  • FluffyArmadilo
  • · Replies 3 ·
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3
Undergrad Why Does the Continuous Emission Spectrum Depend Only on Temperature?
  • smart_worker
  • · Replies 11 ·
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11
Graduate Can Quantum Particles Differentiate Between Parallel Universes?
  • Digitalism
  • · Replies 6 ·
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6
Graduate E^(i[itex]\omega[/itex]t) question
  • lonewolf219
  • · Replies 7 ·
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7
Graduate What is the Difference Between ∫X.dY and ∫Y.dX in Physical Applications?
  • transparent
  • · Replies 3 ·
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3
Undergrad Using energy to scrub the atmosphere of greenhouse gases
  • dbaezner
  • · Replies 27 ·
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Graduate What Are the Unsolved Problems in Physics and Math That Could Impact Society?
  • vatzis
  • · Replies 7 ·
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7
What Is the Newest Generation of Solar Cells?
  • hokhani
  • · Replies 2 ·
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2
Undergrad Is hv/kt Dimensionless in Planck's Radiation Law?
  • noreally
  • · Replies 4 ·
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4
High School Where Can I Find Texas Tower Data for Physics Experiments?
  • mbigras
  • · Replies 1 ·
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1
Undergrad What is Triboluminescence and How Does it Work?
  • sln4tra
  • · Replies 2 ·
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2
Run so fast that you'd run over your back?
  • IamBatman
  • · Replies 7 ·
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7
Graduate Gibbs phenomenon and ringing in square waves: causality?
  • RGann
  • · Replies 9 ·
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9
Graduate How Did Gordon Grant Combine Music and Fly Fishing in His Innovative Rod Design?
  • speycaster1
  • · Replies 8 ·
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8
Undergrad Infinity -just maths or any physical existence?
  • Vivek des
  • · Replies 33 ·
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Undergrad Question on the error of the estimated mean.
  • NATURE.M
  • · Replies 3 ·
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3
Undergrad Decoding the Definition of Physics Codes
  • Aaronvan
  • · Replies 4 ·
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4
Graduate Cavitation detection in machinery
  • ajd12
  • · Replies 2 ·
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2
High School Is physics the right major for me?
  • kekait
  • · Replies 19 ·
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19
Undergrad Mass can turn into Energy, or is it Matter which can turn into energy?
  • jacket
  • · Replies 28 ·
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28
Undergrad What is the point of Fourier Series and what is it used for?
  • nabeel17
  • · Replies 7 ·
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7
High School Why is Energy a Scalar? A Simple Explanation
  • oneplusone
  • · Replies 2 ·
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2
High School Cool Beer in 45 Seconds - Reverse Microwave
  • dipole
  • · Replies 7 ·
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7
High School Why do blue and yellow pigments create green when mixed?
  • Chemist@
  • · Replies 6 ·
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6
Undergrad Dimensions and Dimensional analysis question
  • Zerocool97
  • · Replies 3 ·
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3
High School How do I record the occurrence of waves?
  • Etherialist.18
  • · Replies 14 ·
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14
Should I Do Physics At University?
  • toric36
  • · Replies 16 ·
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16
High School Public Speaking Tips for Yo-Yo Physics
  • BH Wiz
  • · Replies 22 ·
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22
Graduate Fourier Transform - how to increment in time?
  • blaughli
  • · Replies 11 ·
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11
High School Why is equal sign used in physics?
  • goldust
  • · Replies 14 ·
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14
Undergrad Why Are Standards Definitions So Complicated?
  • Not_a_dork
  • · Replies 21 ·
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21
Hi there, just registered and desperate to learn physics/mathematics
  • The Void
  • · Replies 9 ·
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9
Graduate Are Gaming Consoles Solving PDEs for Realistic Animations?
  • cytochrome
  • · Replies 8 ·
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8
What does living in exponential times mean?
  • threy
  • · Replies 5 ·
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5
Graduate How Does Sinc Convolution Prepare an Image for Nearest Neighbor Downscaling?
  • sandon
  • · Replies 2 ·
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2
Graduate Understanding Normal Modes of Objects - Linear vs Non-Linear Particles
  • ajayguhan
  • · Replies 4 ·
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4
Undergrad Bubbles Escaping from Submerged Container
  • gordonb
  • · Replies 8 ·
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8
Undergrad What Is the Difference Between Intensity and Density?
  • kira506
  • · Replies 7 ·
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7
Undergrad Why Is Vector Notation Essential in Cross Product Calculations?
  • moatasim23
  • · Replies 7 ·
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How many atoms thick is a sheet of paper?
  • noobphysicist
  • · Replies 7 ·
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7
Graduate What is the rate of change of amplitude for standing waves with respect to x?
  • nil1996
  • · Replies 5 ·
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5
Graduate What is "% fs" Meaning in AFM Oscillation?
  • stephenx_86
  • · Replies 1 ·
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1
Undergrad How Can I Measure Dosage of Ferromagnetic Powder in Kerosene?
  • mendes
  • · Replies 10 ·
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10
Product Warning Labels: Handle with Extreme Care!
  • soroban
  • · Replies 3 ·
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3
High School Understanding Spectrum: Types and Interactions with Matter
  • ajayguhan
  • · Replies 1 ·
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1
Recommendations for a Book on the History of Physics
  • rakeru
  • · Replies 2 ·
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2
Graduate Researching Negative Energy: Where to Start?
  • Kolten
  • · Replies 4 ·
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4
High School Who Won the 2013 Nobel Prize in Physics and Why Not Others?
  • genefalk
  • · Replies 2 ·
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2
Undergrad Is Detonation a Physical or Chemical Reaction?
  • Mechaniac
  • · Replies 4 ·
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4
Undergrad Can someone with a helmholtz calculation equation.
  • Qaiphyx
  • · Replies 3 ·
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3
Graduate How do we calculate gravitational force when an object is inside a shell?
  • anhchangdeptra
  • · Replies 4 ·
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4
High School Primitive methods to make simple geometrical solids
  • oldperson
  • · Replies 10 ·
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10
High School What is the concept of mass conservation and its implications for human life?
  • bradleyb5155
  • · Replies 4 ·
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4
Graduate Can something exist without us ever being able to detect it ?
  • B4ssHunter
  • · Replies 1 ·
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1
Graduate Sealing a 6 torr closed system vacuum
  • thefixerupper
  • · Replies 1 ·
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1
High School Visualizing Angle of 40 Degrees on Bathroom Scale
  • ericka141
  • · Replies 1 ·
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1
Wanted High density Liquid For suspension of Solids
  • Coolie88
  • · Replies 11 ·
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11
Undergrad What would happen if five modern nuclear bombs detonated over a town?
  • physicsscribe
  • · Replies 9 ·
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9
What Would Make a Fun and Useful Physics App?
  • mrxyz
  • · Replies 10 ·
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10
Graduate The birth of statistical mechanics
  • ShayanJ
  • · Replies 3 ·
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3
Graduate Derivative discretization with fixed boundary condition
  • debsankar
  • · Replies 10 ·
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10
Graduate Calculating Error of w from Errors in x,y,z
  • ShayanJ
  • · Replies 6 ·
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6
Undergrad A few questions about wave interactions (conceptual, not technical)
  • elegysix
  • · Replies 14 ·
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14
Undergrad How Does Error Propagation Affect Calculations in Physics?
  • 012anonymousx
  • · Replies 6 ·
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6
High School Why are even numbered problems excluded from textbook answer keys?
  • Alpharup
  • · Replies 6 ·
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6
High School Test My Idea: Create a Small Ionosphere with Electricity & Nickle
  • troyparker2012
  • · Replies 1 ·
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1
High School Universal Gravitation Constant - HELP
  • John231
  • · Replies 3 ·
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3
Can You Get Electrocuted in the Shower During a Thunderstorm?
  • smokey
  • · Replies 8 ·
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8
Graduate Can't be described as one or many?
  • Mohd Abdullah
  • · Replies 8 ·
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8