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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.
Is the SAANI Software Available for Public Download?
  • Argus90
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Graduate Experimental determination of Mean free path.
  • hyperickz
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Graduate Spectroscopic linelist question
  • jl29488
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1
Graduate Resistance governed by the speed of the electron?
  • thankz
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2
Why Does Energy Exist in Our Universe?
  • Abtinnn
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4
Undergrad What gases can be absorbed between 800 and 1000nm wavelength?
  • bertopolis
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1
Undergrad What Are the Key Concepts and Misconceptions About Resonance?
  • blooperkin
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4
Undergrad Seismic Wave Movement: Calculating Distance w/ Density & Force
  • Paul G.
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2
Undergrad How to convert Gallons Per Hour to PSI?
  • Sia001
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2
Undergrad What is the difference between curly and derivative (d) sign
  • masyousaf1
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4
High School Could a thing contain more than its volume can w/o overflowing?
  • pie
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6
Undergrad Build a Vacuum Kiln from Shipping Container
  • Garritt
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1
Undergrad Will Decreasing Stem Diameter Affect Seal Point?
  • mido
  • · Replies 13 ·
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13
Graduate Why is the general form of the wave equation a second order partial derivative?
  • Michael95
  • · Replies 8 ·
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8
Undergrad What mathematical factors influence the shapes produced in cymatics experiments?
  • prepond
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2
Undergrad Finding Harmonic Vibration from Frequency
  • ARPIT GUPTA
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2
Undergrad Measuring density with ultrasonics
  • Tony Giaccone
  • · Replies 16 ·
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16
Einstein on Matter & Energy: Debunking Misconceptions
  • Rajkovic
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2
Undergrad Gases I could expect to see using an IR receiver
  • bertopolis
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6
Graduate Oxidization of III-V Materials
  • jarodparker198
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6
High School Smoke smell in a flat below mine.
  • bagofbones
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3
Graduate Diffusion distance (microfluidics)
  • Soren
  • · Replies 14 ·
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14
High School Why can't we see N2 and H2 in color?
  • Muthumanimaran
  • · Replies 1 ·
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1
High School Understanding Intensity and Amplitude of Physical Waves | School Physics UK
  • teodorakis
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3
Undergrad What is the Equation for Determining the Resonant Frequency of a Drum Shell?
  • SIMON1
  • · Replies 12 ·
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12
High School Can Waves Inhibit Sound and Heat Effectively?
  • physior
  • · Replies 1 ·
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Graduate Feeling Burnt Out? Physics Degree Struggles and Advice
  • nmsurobert
  • · Replies 8 ·
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8
Graduate Is an asthma inhaler (MDI) an example of vaporization?
  • urb-nurd
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2
High School Vector & Scalar: A Detailed Overview
  • talibji786
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10
High School Are matter and energy interchangeable?
  • kylemoely
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4
High School How do i become a physicist or an astrophyscist
  • yuganes warman
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1
High School Why is math crucial for understanding and achieving advancements in physics?
  • yimmortal
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1
Graduate What are the potential interactions between waves and matter?
  • physior
  • · Replies 2 ·
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2
Graduate Understanding Kinematic Viscosity Units
  • richard9678
  • · Replies 8 ·
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8
Undergrad Measurement Systems: Learn About Used Systems & Universe Measurement
  • Lobos
  • · Replies 8 ·
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8
High School Does standing tiptoes reduce the absortion of virabtions?
  • paget
  • · Replies 7 ·
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7
Undergrad Square wave and sine wave -- How standing waves are formed?
  • hobmarcus
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4
Undergrad Material that'll help improve write-ups for lab experiments?
  • Zaent
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1
High School Why is blowing stronger than sucking?
  • leroyjenkens
  • · Replies 16 ·
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16
What is your reason for studying physics?
  • Futurestar33
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5
Graduate How to present a new scientific idea
  • Rene Manzano
  • · Replies 12 ·
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12
Graduate Sonoluminescence-- why is this phenomenon so mysterious?
  • Ben Johnson
  • · Replies 1 ·
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1
Online Physics Games & Simulations
  • Eezekiel
  • · Replies 35 ·
2
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Have you ever seen gold orbs floating indoors?
  • Rod1964
  • · Replies 17 ·
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17
Undergrad Can Standing Waves Have Both Transverse and Longitudinal Components?
  • Physics_Lovvee
  • · Replies 3 ·
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3
Undergrad Mole: Avogadro's Number & Its Discovery
  • akashpandey
  • · Replies 3 ·
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3
Undergrad Nodes in a standing wave and energy transmittance
  • itchybrain
  • · Replies 8 ·
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8
Graduate How would you explain what compressed sensing is
  • Niaboc67
  • · Replies 3 ·
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3
Undergrad Force of a full body jerk (myoclonic jerk)
  • freexd
  • · Replies 11 ·
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11
High School Why is Young's modulous in Pascals?
  • richard9678
  • · Replies 22 ·
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22
High School Problems/solutions manual/pdf/website waves and vibrations
  • Geranimo
  • · Replies 3 ·
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3
Undergrad Exactly what is there to understand in physics? Its memory?
  • x86
  • · Replies 8 ·
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8
Undergrad At what point can one be considered a physicist?
  • Mad scientist
  • · Replies 99 ·
4
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Confused about how to know about univers
  • akashpandey
  • · Replies 5 ·
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High School Physics noob, can someone explain this?
  • Orbyt
  • · Replies 1 ·
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1
Graduate Looking for waves to detect a specific material exclusively
  • physior
  • · Replies 25 ·
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25
Graduate Can I Master All Aspects of Physics and Unravel the Mysteries of the Universe?
  • akashpandey
  • · Replies 5 ·
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5
High School Good Science Project for a 5-year-old
  • Pythagorean
  • · Replies 7 ·
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7
What is the most effective way to prevent pipes from freezing in a cold attic?
  • PatGV
  • · Replies 9 ·
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9
High School Are Atoms Alive? Understanding the Building Blocks of Life
  • akashpandey
  • · Replies 1 ·
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1
Graduate What Are the Top Resources for Discovering Research Methodology Options?
  • physior
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2
High School 8th Grade Science Project Ideas
  • c-english
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3
Undergrad Why are there no pneumatic cylinders for CO2 PSI?
  • Scott Davies
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High School Why is the rail gun an interesting weapon?
  • mrspeedybob
  • · Replies 76 ·
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Undergrad How Do You Determine the Tangent Point for Contact Angle in Droplet Analysis?
  • gracy
  • · Replies 34 ·
2
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Undergrad How can I improve my skills in finding general solutions in physics?
  • TimeInquirer
  • · Replies 6 ·
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6
High School What Is the Fermi Paradox and Why Does It Matter for Extraterrestrial Life?
  • Quds Akbar
  • · Replies 1 ·
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Undergrad Preventing Capillary Action in Hot Chamber Wire Feed-throughs
  • likephysics
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2
Graduate Did Ettore Majorana Choose to Disappear?
  • lavoisier
  • · Replies 15 ·
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15
High School Surface Area of Foil: Can It Increase?
  • Samson4
  • · Replies 17 ·
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Graduate How is Knowledge in Physics Produced?
  • sushichan
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2
Undergrad Can Resonance Occur at Multiple Frequencies in String Instruments?
  • Fiona Rozario
  • · Replies 4 ·
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4
Graduate Physics investigation guidance: Vibration of circular plate
  • alexao1111
  • · Replies 1 ·
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1
Look at one point - can you make the train change directions?
  • lisab
  • · Replies 5 ·
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5
Undergrad Effects of Intermolecular Forces?
  • Gwozdzilla
  • · Replies 7 ·
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7
One Way Plug Key: Definition & Uses
  • gracy
  • · Replies 40 ·
2
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High School Feynman's Discoveries: Impact on Technology & Why He Won a Nobel Prize
  • Cyran
  • · Replies 17 ·
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17
Undergrad Is Wireless Energy Transmission Efficient and Practical?
  • physior
  • · Replies 25 ·
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25
High School Physics Olympiad Preparation:-How to begin?
  • Diganta_aops
  • · Replies 2 ·
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2
Graduate Business masters' with a ridiculously stupid question
  • Cantshowmywork
  • · Replies 2 ·
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2
Graduate Wave second order derivative equation
  • shiromani
  • · Replies 4 ·
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4
Are the non-physicist physics lovers here content?
  • axmls
  • · Replies 8 ·
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8
HRK Physics 4th edition Ext. Solutios
  • TahirM
  • · Replies 1 ·
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1
High School How should we format units in scientific writing?
  • TESL@
  • · Replies 5 ·
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5
High School Why do most formulas in physics have integer exponents?
  • dushyanth
  • · Replies 63 ·
3
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Why is the answer to this question "No change"
  • Syndy
  • · Replies 12 ·
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12
Graduate What Are the Most Inspiring TED Talks on Physics and the Universe?
  • Greg Bernhardt
  • · Replies 1 ·
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1
High School Mean colour of visible spectrum?
  • Raghav Gupta
  • · Replies 56 ·
2
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56
Graduate Sociology of Physics: comment and indices
  • marcus
  • · Replies 523 ·
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523
Science of Interstellar: Is it Worth Reading?
  • DaveC426913
  • · Replies 9 ·
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Graduate In Search of Causal Relationships
  • Feeble Wonk
  • · Replies 4 ·
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4
High School Thought experiment; what happens if you alternate an image
  • gonnis
  • · Replies 6 ·
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6
Graduate Errors of the slope and intercept of a regression line
  • h_userd23
  • · Replies 6 ·
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6
Undergrad About Energy in Applications, me.
  • Karmo
  • · Replies 6 ·
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6
Undergrad Is physics being recorded in any really hard-to-destroy way?
  • Doofy
  • · Replies 5 ·
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5
High School Best physics video channel for Olympiad students?
  • terryds
  • · Replies 2 ·
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2
Graduate Can I Use Aluminum for DIY Diffusion Pumps?
  • SupaVillain
  • · Replies 1 ·
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1
Graduate How Do You Connect Multiple Diffusion Pumps for UHV Systems?
  • SupaVillain
  • · Replies 4 ·
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4
High School Is Matter and Energy Creation a Contradiction?
  • Evenus1
  • · Replies 10 ·
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10
Graduate One or more couldn't be resolved in descending dimensions
  • MRzNone
  • · Replies 5 ·
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5