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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.
Undergrad Operational Amplifiers - Saturation
  • PFuser1232
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How Can a New Undergrad in Physics Make Friends and Engage in Research Online?
  • Giant
  • · Replies 24 ·
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Graduate How Does Changing Water Levels Affect Air Column Resonance and Harmonics?
  • sjc78
  • · Replies 2 ·
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Undergrad Going from a rate to a probability
  • aaaa202
  • · Replies 1 ·
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Undergrad When Do We Use Each SHM Equation?
  • negation
  • · Replies 1 ·
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High School Why Does Ice Appear White?
  • Sam Ku.D
  • · Replies 35 ·
2
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Undergrad Thermistor Problem: Finding Material and Equation
  • brendanrundle
  • · Replies 2 ·
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Graduate My physics/love poem - feedback encouraged
  • TheTechNoir
  • · Replies 2 ·
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2
Does anyone know what this symbol designates?
  • shanepitts
  • · Replies 8 ·
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8
Undergrad Determining if 3 curves have the same period
  • negation
  • · Replies 2 ·
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2
Undergrad What is the Definition of Color According to the CIE?
  • bobie
  • · Replies 102 ·
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Undergrad Easier Way to Build Spice Models from Old Data Sheets
  • kq6up
  • · Replies 2 ·
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2
High School How Does Resonance Occur?
  • physics?
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6
High School What is the name of this expanding circle effect in physics?
  • viciam
  • · Replies 21 ·
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21
High School Understanding Z-Field Compression: A Beginner's Guide
  • outspoken
  • · Replies 1 ·
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1
Undergrad Have any nobel prizes been awarded to computational physicists?
  • Hercuflea
  • · Replies 2 ·
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2
Graduate Can Analog Memory Exist? A Physics Inquiry
  • Jyan
  • · Replies 14 ·
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14
High School What is Resonance? Simple Definition
  • threy
  • · Replies 5 ·
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5
Undergrad Can someone be too old or too late for physics?
  • pablotano
  • · Replies 5 ·
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5
Graduate The reason why travelling back in time is logically impossible.
  • Tenunbow
  • · Replies 12 ·
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12
High School Cool Large Scale Physics Projects
  • poonintoon
  • · Replies 4 ·
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4
Graduate A list of Physicist and their contributions
  • TorqueDork
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Undergrad What Drives the Creation of Derived Units in Physics?
  • alodia
  • · Replies 5 ·
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5
Undergrad Remove clothing wrinkles using ultrasonics?
  • joedp
  • · Replies 5 ·
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5
Obtaining copy of CIE xy chromaticity diagram
  • Bob65
  • · Replies 1 ·
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1
Undergrad Dx as change in distance vs dx as infinitesimal x?
  • jaredvert
  • · Replies 2 ·
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2
Graduate Can Iron Exist as a Gas Without Becoming Plasma?
  • CthlhuLies
  • · Replies 6 ·
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6
  • Poll Poll
How ugly is your physics department?
  • dipole
  • · Replies 19 ·
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19
Graduate How do theoretical physicists know so much?
  • Qubix
  • · Replies 15 ·
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15
High School Air circulation question [Image attatched]
  • tliguori330
  • · Replies 14 ·
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14
Mars rocks covered with uniformly thick dust layer?
  • seany
  • · Replies 9 ·
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9
Undergrad How exactly are standing waves formed?
  • PFuser1232
  • · Replies 13 ·
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13
High School Effective Note-Taking Strategies for Physics Students
  • Qubix
  • · Replies 21 ·
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21
Undergrad Understanding Newton's Principia: "Measure of the Same
  • johann1301
  • · Replies 12 ·
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12
High School Why do solids compress more than liquids under pressure?
  • curious bishal
  • · Replies 4 ·
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4
High School How does vacuum form in a barometer?
  • christian0710
  • · Replies 8 ·
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8
Graduate How can I find the smallest positive integer number without dividing q by e?
  • jenny777
  • · Replies 28 ·
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Undergrad How long until the universe can write a googolplex?
  • Max7291
  • · Replies 2 ·
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2
Being female in physics is ridiculous.
  • Dishsoap
  • · Replies 85 ·
3
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Undergrad Calculating Relative Error of Measurement: (1±0.1)cm or (1±10%)cm?
  • jenny777
  • · Replies 12 ·
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12
High School Confused about Math Conversion: Nano and Micro
  • onceinalifetim
  • · Replies 1 ·
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1
High School Number of points in mesh (Comsol 4.3b)
  • VIEX12
  • · Replies 3 ·
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3
Graduate Are there limitations to detecting small objects using sound and light?
  • nickek
  • · Replies 5 ·
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5
Building a Small Boat: Tips & Advice
  • nicoleguevara
  • · Replies 5 ·
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5
Graduate The number of laws of physics is finite or infinite?
  • Eagle9
  • · Replies 2 ·
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2
Undergrad Why don't nearby atmosphere look blue.
  • Ahsan Khan
  • · Replies 36 ·
2
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High School The Life and Contributions of Felix Ehrenhaft
  • shawn95
  • · Replies 1 ·
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1
Undergrad Can soft materials scratch hard materials?
  • skeleton
  • · Replies 26 ·
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26
High School I want to start to make a radio with one of my friends
  • Hepic
  • · Replies 1 ·
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1
High School How much will be the gravity of the sun if i make it like a stick
  • Trojan666ru
  • · Replies 5 ·
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5
High School Energy is Matter is Energy? - confused layman here
  • No-name
  • · Replies 14 ·
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14
Undergrad Constructing a Dip Coater: Does Elevating Solvent Make a Difference?
  • new man
  • · Replies 1 ·
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1
Graduate Impact of Helium 3 from Extraterrestrial Sources
  • lightning
  • · Replies 4 ·
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4
Undergrad What Is Energy at a Microscopic Level?
  • nil1996
  • · Replies 3 ·
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Undergrad If you have any further questions, feel free to ask.
  • johnnnnyyy
  • · Replies 1 ·
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How many hertz can kill flying house insects?
  • taregg
  • · Replies 18 ·
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Undergrad Is everything vibrating and will it ever stop?
  • spggodd
  • · Replies 1 ·
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1
Undergrad Oxygen Phase Diagram: Pressure & Liquefy 0-50 atm
  • pixelpuffin
  • · Replies 3 ·
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3
Undergrad How much trig should I know before taking calculus based physics?
  • annoyinggirl
  • · Replies 5 ·
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5
News John Dobson: Pioneer of Amateur Astronomy
  • George Jones
  • · Replies 2 ·
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2
Recharging on the Moon: How to Revive a Dead Battery with Only a Copper Wire
  • shounakbhatta
  • · Replies 10 ·
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10
What is different about you in one place than you from another place?
  • fredreload
  • · Replies 24 ·
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High School Explaining the Role of Transistors in Burglar Alarms
  • phymathlover
  • · Replies 1 ·
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1
Undergrad Help with the fundamental forces.
  • tolove
  • · Replies 1 ·
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1
High School What is the difference between D and AA batteries?
  • kjamha
  • · Replies 6 ·
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6
High School Does robotics follow the laws of physics?
  • drumjonny
  • · Replies 3 ·
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3
Get Bifilar Wound Coils for Your Project: 2 of Each Type
  • Vikas_Madhu
  • · Replies 17 ·
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Undergrad Impact Factors/Peer Review in Physics Journals
  • abbybeall
  • · Replies 20 ·
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Graduate Can Skin Vibrations Be Detected with Lasers or Thermal Imaging?
  • Blackthorn
  • · Replies 2 ·
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High School What is the relationship between frequency and period?
  • threy
  • · Replies 7 ·
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7
Undergrad Why Are Both KE and PE Maximal at Equilibrium in a String Wave?
  • Saw
  • · Replies 66 ·
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Graduate Can Bell's Theorem Be Applied to the Question of Free Will?
  • bhagwad
  • · Replies 2 ·
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Is this diagram just an elaborate time line or is there more to it?
  • doc1737
  • · Replies 8 ·
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Graduate What Happens to Time Zones When Flying at Earth's Rotation Speed?
  • elegysix
  • · Replies 9 ·
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9
High School What is the difference between a compound and a molecule?
  • kjamha
  • · Replies 2 ·
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Undergrad Wireless Energy Transfer: Just Science Fiction?
  • Kenny Bala
  • · Replies 15 ·
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Graduate An interesting take on (the lack of) time travel ;)
  • Borek
  • · Replies 5 ·
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5
Undergrad Standing vs. Travelling waves in a string fixed at both ends
  • Alexander83
  • · Replies 8 ·
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8
Graduate Volume and Area in physical equations
  • ShayanJ
  • · Replies 4 ·
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4
Undergrad Density of Air in the Mesosphere?
  • thedan16
  • · Replies 2 ·
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2
High School Difference between sthg*time & sthg/time
  • kira506
  • · Replies 4 ·
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4
Undergrad What kind of physicist is Nassim Haramein?
  • Uranus
  • · Replies 1 ·
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1
Did I Witness a Supernova Tonight?
  • Edward Solomo
  • · Replies 2 ·
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2
Free Physics ebooks - Math & Science Learning Materials
  • Spinnor
  • · Replies 9 ·
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9
How Would You Address a Letter in the Multiverse Mail Delivery System?
  • Layman Fizix
  • · Replies 7 ·
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7
High School Simple vector arithmetic question
  • The_Engineer
  • · Replies 4 ·
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4
Undergrad Can Quartz Crystals Really Store Unlimited Data for an Unlimited Time?
  • Kalrag
  • · Replies 35 ·
2
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Undergrad So what exactly has changed in physics in the last 20 years?
  • jack476
  • · Replies 3 ·
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3
Undergrad Can Solar Panels Orbiting the Sun Beam Energy to Earth via Lasers?
  • jaydnul
  • · Replies 28 ·
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28
High School Wha is difference between laminar flow and streamlined flow.
  • abhijithmatt
  • · Replies 1 ·
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High School How does E=MC^2 convert to Joules?
  • JoshuaFarrell
  • · Replies 3 ·
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3
The Feynman Lectures on Physics, Online
  • codelieb
  • · Replies 11 ·
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11
Undergrad Build a CRT: DIY Instructions & Guide
  • Amsingh123
  • · Replies 11 ·
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11
Undergrad What is the Physics behind Global Warming?
  • 11thHeaven
  • · Replies 1 ·
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1
Graduate Why Was the 2013 Nobel Prize Delayed for the Higgs Mechanism?
  • ShayanJ
  • · Replies 11 ·
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11
Graduate Is Farewell to Reality a Valid Critique of Modern Physics?
  • RUTA
  • · Replies 1 ·
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1
Undergrad Stationary Waves: Explaining Amplitude of Wave
  • arvindsharma
  • · Replies 1 ·
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1
Can You Manage a Pet During Physics Grad School?
  • pinkfishegg
  • · Replies 32 ·
2
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32
High School How to Convert J/K and kgJs/m into m/s?
  • Rajini
  • · Replies 8 ·
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8
Undergrad Moon Landing: How Much Thrust Did the Lem Need to Achieve Orbit?
  • chuffmonkey
  • · Replies 9 ·
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9