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.
Threads
Undergrad Glycol Fog Machine: Is Pipe Pipe Reconstitution Possible?
- Braden T
- · Replies 3 ·
LeBron James' Verizon science experiment
- Brutonos
- · Replies 5 ·
Undergrad Linear regression slope for log10(B) vs log10(x) with B = μ₀I/(2πx)
- Ekwia22
- · Replies 1 ·
High School Visual proof of being at altitude?
- Alfreds9
- · Replies 20 ·
Collaborate with a Physicist: Finding Solutions to Complex Problems
- gva
- · Replies 4 ·
Graduate Complex systems research at Santa Fe Institute and similar centers
- StatGuy2000
- · Replies 1 ·
Graduate Contact Angle of Immiscible Liquids in a Tube
- AqibH
- · Replies 3 ·
Undergrad How Do Waves Influence the Movement of the Northern Lights?
- RubinLicht
- · Replies 4 ·
High School How many points can be found in the surface of the Earth?
- IuGran44
- · Replies 15 ·
News The late Prof Sir Tom Kibble awarded Isaac Newton medal
- Jonathan Scott
- · Replies 3 ·
High School Why Is My Chair Moving on Its Own?
- Knucklehead
- · Replies 2 ·
Undergrad How to write the unit vector for the spherical coordinates
- unicornflyers
- · Replies 1 ·
Undergrad Is Sonoluminescence Possible with Liquid Hydrogen?
- smilodont
- · Replies 3 ·
Undergrad Can You Explain: Why Is It One Sec?
- AyoubEd
- · Replies 3 ·
High School When does a scientific paper become a discovery or theory?
- ricky33
- · Replies 18 ·
Undergrad How to Calculate the Area of Hysteresis?
- SDRFG
- · Replies 26 ·
Graduate Jobs websites for theoretical/computational physics
- sjabari
- · Replies 2 ·
High School Solar cell educational graphics - review for possible errors
- edutainer
- · Replies 2 ·
High School What is the source of this intriguing natural noise diagram?
- houlahound
- · Replies 3 ·
High School When to use different kinematic equations and their units?
- Si1entShad0w
- · Replies 13 ·
Undergrad How to Convert Cgs to SI Units for Flux and Energy Values?
- SorenaJ
- · Replies 3 ·
Graduate Can Buoyancy Create Free Energy?
- Justin Shearer
- · Replies 2 ·
Graduate Is there such a thing as true darkness?
- phaeton
- · Replies 50 ·
Undergrad How do magnets make strawberries float?
- Maike
- · Replies 4 ·
Undergrad Is there any absolute proof that photons exist?
- Andew
- · Replies 4 ·
High School How Do I Linearize My Negative Parabola Graph?
- Alessandro Angeletti
- · Replies 23 ·
Graduate Are there instances of Simpson's Paradox in Physics?
- RogerWest
- · Replies 3 ·
Graduate Water hammer with simultaneous closure at both ends and friction
- Mikealvarado100
- · Replies 11 ·
High School Can I Test Lightboxes for UV Rays?
- Frozen
- · Replies 7 ·
High School Why do some people show voltage on a voltmeter and others don't?
- beatfrequency
- · Replies 5 ·
Insights Interview with a Physics Mentor: Nugatory - Comments
- Greg Bernhardt
- · Replies 5 ·
High School Why is the dBA scale used instead of the dB scale for sound?
- Hannah7h
- · Replies 2 ·
High School Voyager 1: How Long Can We Communicate?
- Lars Hansen
- · Replies 4 ·
High School Can Antimatter Be Trapped in Thunderstorms?
- Ananuk
- · Replies 11 ·
High School Question regarding JJ Thompson's Experiment
- Dexter Neutron
- · Replies 1 ·
Undergrad Why does a sinusoidal wave use t-(x/v) as the time argument?
- toesockshoe
- · Replies 5 ·
High School What does the picture on an AP Physics t-shirt mean?
- Hunter Hammonds
- · Replies 12 ·
Undergrad Explain the formula, rpm unit conversion
- avito009
- · Replies 2 ·
Graduate Neumann boundary conditions in calculus of variations
- ShayanJ
- · Replies 8 ·
Graduate René Heller's SETI Decrypt Challenge
- collinsmark
- · Replies 8 ·
High School How Does This Experiment Help Us Understand Vibration?
- john c3na
- · Replies 5 ·
Undergrad Circular dots of sunlight forming interference patterns under boardwalk
- Braeden Nason
- · Replies 4 ·
High School How Many Layers of Aluminum Foil Are Needed for a Resonant Cavity?
- kiutukri
- · Replies 8 ·
High School Has any experiment actually measured PI to many places?
- squirrlmcduckles
- · Replies 16 ·
Graduate Progress in measurement of gravitational constant?
- exponent137
- · Replies 1 ·
Undergrad Is Thermodynamics the hardest science?
- Uchiha Madara
- · Replies 6 ·
High School Can someone explain attraction using the 'two people throwing balls' analogy?
- Deepak K Kapur
- · Replies 2 ·
Undergrad What Causes Patterns in Water Droplets with Sound Waves?
- iDimension
- · Replies 7 ·
Undergrad Why Do Some Clouds Have a Rainbow Hue?
- rootone
- · Replies 4 ·
Undergrad What is the correct terminology for intensity and effort in exercise?
- Sean Jackson 01
- · Replies 2 ·
High School How do car subwoofers generate enough air pressure to trigger car alarms?
- ryan gonzalez
- · Replies 13 ·
Remembering J. D. Jackson: A Tribute to a Physics Legend
- Telemachus
- · Replies 3 ·
High School High-pitched tone from steel I-beam in park bridge
- DaveC426913
- · Replies 11 ·
Graduate Two dimensional plane equal absolute nothing
- Mohd Abdullah
- · Replies 23 ·
Photo Contest - Gravity (4/30-5/13)
- ZapperZ
- · Replies 20 ·
Graduate How does attenuation reduce water hammer in pipelines?
- Mikealvarado100
- · Replies 2 ·
High School Would a car with lower mass but same volume be more damageable?
- Sundown444
- · Replies 1 ·
Undergrad Can a Sprayed Metal Roof Act as a Cooler and Radiator for a Room?
- georgemdn
- · Replies 11 ·
High School What is the basic science behind fire?
- Jakob Olason
- · Replies 2 ·
Undergrad What does it mean when units are multiplied rather than divided?
- polaris90
- · Replies 15 ·
Undergrad Is It Possible to Create a Natural Vacuum in a Cavern Using Clay and Water?
- Liam A
- · Replies 3 ·
Undergrad How Much Does High-Speed Flight Affect Aging?
- Beneer
- · Replies 5 ·
Undergrad How can novice scientific enthusiast get ideas disscussed?
- Salah Saad
- · Replies 13 ·
High School Does Methane Gravitationally Differentiate in Air or Mix with Fluid Dynamics?
- Praestrigiator
- · Replies 1 ·
High School Why can a hand pass through gases and liquids but not solids?
- Sundown444
- · Replies 19 ·
Graduate Why do 3D PET scanners have higher NECR but lower SNR than 2D scanners?
- BobP
- · Replies 9 ·
Undergrad David McMahon's introductory textbooks on physics and mathematics
- Demystifier
- · Replies 3 ·
High School Why is there no prefix for 10^5,10^-5 and 10^4 and 10^-4?
- ppppparker
- · Replies 2 ·
Insights Interview with a Physicist: Sean Carroll - Comments
- Greg Bernhardt
- · Replies 6 ·
High School Traveling microscope vs vernier calliper
- ryanuser
- · Replies 6 ·
High School Strange Phenomena when the Sun is low on the horizon?
- gary350
- · Replies 7 ·
- Poll
What areas of physics research are current PhD students and postdocs studying?
- StatGuy2000
- · Replies 11 ·
Undergrad What are some ways to 'mold'/change the shape of a flame?
- zogeta
- · Replies 6 ·
High School Vague definition of the word molecule
- n124122
- · Replies 4 ·
Graduate Why Retraction? New Journal of Physics Investigates
- PFfan01
- · Replies 5 ·
Undergrad Why is the standard deviation the error on the singular meas
- Soren4
- · Replies 1 ·
High School How does sea water vapor reach 10 km inland and how low does humidity get far from ocean?
- cube137
- · Replies 2 ·
High School Why does an AM carrier wave have bandwidth if its frequency is unique?
- Tulio Cesar
- · Replies 2 ·
Undergrad Is it Possible to Create a Device that Neutralizes Loud Vehicle Speakers?
- Michael Dugger
- · Replies 2 ·
High School Parallex Method: Struggling in 11th Class?
- rtd
- · Replies 8 ·
High School What makes thunder sound the way it does?
- Edison Bias
- · Replies 14 ·
High School Solving Confusion with Waves in Physics
- ashsully
- · Replies 3 ·
Undergrad Does gravity make Pascal's law wrong for fluids?
- physea
- · Replies 20 ·
What is the answer to this physics riddle?
- micromass
- · Replies 31 ·
High School Finding a Gas for Physics Experiment
- Intle
- · Replies 2 ·
Insights Why Won't You Look at My New Theory? - Comments
- PeterDonis
- · Replies 228 ·
Undergrad Fourier transform sum of two images
- BobP
- · Replies 15 ·
Graduate Can infinity be observed in the real world?
- nnope
- · Replies 2 ·
High School Responding to anti-science arguments about gravity, relativity and tides
- Tegewaldt
- · Replies 1 ·
Undergrad How Aristarchus found moon's diameter?
- prashant singh
- · Replies 11 ·
Undergrad Oscillations and Waves in Fluids
- Tazerfish
- · Replies 1 ·
Undergrad Eratosthene's explanation of the sun's ray
- prashant singh
- · Replies 9 ·
High School Does "nothing" have a meaning in physics?
- houlahound
- · Replies 26 ·
High School What would happen if Earth's magnetic poles reversed?
- @PK nd
- · Replies 37 ·
Insights Secondary forces in classical mechanics
- klotza
- · Replies 6 ·
Physicists/Mathematicians: Night Owls or Morning Larks?
- DrSuage
- · Replies 6 ·
News RIP Sir David Mackay: Physicist, Mathematician, Author
- StatGuy2000
- · Replies 1 ·
Undergrad A.P French equation Question -- singing wine glass experiment
- NeedHelpBro
- · Replies 1 ·
Undergrad What Are the Names of These Four Equations?
- Pual Black
- · Replies 4 ·
Graduate Reducing standing waves with phase randomization
- Jaryd Miles
- · Replies 5 ·