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 Where to find information on pressure drop in air flow systems
- Bern
- · Replies 1 ·
Graduate What is the Connection Between the ABC Conjecture and Fermat's Last Theorem?
- PFanalog57
- · Replies 6 ·
Graduate How Can You Create a Near Perfect Vacuum Without Contamination?
- pallidin
- · Replies 5 ·
High School How do handheld barcode scanners read barcodes?
- KingNothing
- · Replies 4 ·
Information on studying Medical Physics
- njblaha
- · Replies 10 ·
Technology to save the enviroment already exists
- next level
- · Replies 2 ·
I can't believe it was in my bath tub.
- tribdog
- · Replies 2 ·
Graduate Do limit definitions differ between standard and infinitesimal approaches?
- Organic
- · Replies 12 ·
High School What is the difference between dot and cross products in vector operations?
- FUNKER
- · Replies 2 ·
Undergrad Find Resultant Wave of y1 & y2: Get Hint Now!
- moham_87
- · Replies 6 ·
Whose article is this?Who Plagiarized My PhysicsPost Article?
- Another God
- · Replies 11 ·
Undergrad How is the limit concept rigorous?
- Organic
- · Replies 147 ·
Graduate Is time a necessary property of physics?
- steersman
- · Replies 4 ·
Graduate Confutatis maledictis (text of Latin requiem)
- marcus
- · Replies 19 ·
Graduate Where Are Uniform Gravitating Prolate Spheroids Found?
- Loren Booda
- · Replies 4 ·
High School Can Physics and Mathematics Predict the Future?
- peter444
- · Replies 2 ·
High School Different poles and arrange them in a circle
- ACLerok
- · Replies 1 ·
Undergrad How low can vacuum pressure go in a sealed vessel?
- whitelighter
- · Replies 12 ·
Recent Physics Books Worth Reading
- DavidQ
- · Replies 6 ·
Who Was John Titor?
- chief
- · Replies 2 ·
Undergrad Good intro physics review books with worked solutions
- jackhammer_bob
- · Replies 1 ·
How do I add a signature to my forum profile?
- Imparcticle
- · Replies 23 ·
Graduate Creating a black hole that doesn't evaporate
- Mazuz
- · Replies 9 ·
What is the term for constantly teetering on the brink of change?
- whitelighter
- · Replies 3 ·
Are You Sure One And One Makes Two?
- deda
- · Replies 32 ·
Be your self, no matter what they say
- deda
- · Replies 7 ·
Undergrad Good question > 50% of the answer
- deda
- · Replies 1 ·
Graduate The Iron inside a cell pulls and holds on to the oxygen
- Fromfiretolife
- · Replies 4 ·
Rear Differential Design: The Cause of Washboard Roads?
- zedex
- · Replies 4 ·
Undergrad Are There Unknown Forces in the Universe Beyond Gravity and Electromagnetism?
- Darmowin
- · Replies 3 ·
PASC:45.50.Jf Few- and many-body systems
- deda
- · Replies 1 ·
Graduate Sending a message back through time
- jaguar99
- · Replies 6 ·
Is aikido based on the law of leverage?
- deda
- · Replies 5 ·
High School Making clouds in a sustainable form in labs
- tabloid
- · Replies 5 ·
Graduate How can we effectively construct and explore complex numerical models?
- Organic
- · Replies 10 ·
Graduate Defining natural numbers through group operations on finite sets
- matt grime
- · Replies 24 ·
Science with a Twist - Scientific Review
- Panos
- · Replies 2 ·
Graduate Technology, morality and the misuse of mathematics in weapons
- Organic
- · Replies 54 ·
Why Do Nuclei Move in Relation to Electrons?
- hooh
- · Replies 13 ·
High School Can lightning strike the same point twice?
- Glynos
- · Replies 18 ·
Graduate Frege's Concept - Script (Begriffsschrift)
- Organic
- · Replies 31 ·
High School Where to find physics resources and printable practice tests for high school
- GrahamH
- · Replies 1 ·
High School What is the speed of gravity?
- vortec
- · Replies 10 ·
Can you jump off the moon with human leg power?
- The Green Giant
- · Replies 6 ·
Crinoid fossil cover-up allegations
- klaw
- · Replies 22 ·
Graduate Odds of Universe Occurring: Have You Heard?
- Juxt
- · Replies 2 ·
Undergrad Why is 1 Decibel = 10 Log (Power1/Power2)?
- sk381
- · Replies 9 ·
High School Real world example for derivatives
- guitarrc6
- · Replies 1 ·
High School Materials and physics in Mars rovers
- vickizhao
- · Replies 2 ·
High School Is Using E Instead of x10 in Scientific Notation Acceptable?
- klaser
- · Replies 15 ·
Undergrad Can Chaos Theory Truly Render Future Systems Unpredictable?
- ion
- · Replies 6 ·
Brian Greene on Techtv: A Kaku Forum
- MrCaN
- · Replies 6 ·
Omega partial alpha found @ www.beyond-science.com
- betalimit
- · Replies 1 ·
Was Einstein Wrong? Check Out The NY Times Article
- lockecole
- · Replies 37 ·
Undergrad Can an Object Pass Through a Wall?
- vickizhao
- · Replies 11 ·
High School What is topic number 9 on eurekalert.org and why is it important?
- tgin_polish
- · Replies 4 ·
Graduate Creating and controlling gravity, and Newton's third law
- benzun_1999
- · Replies 10 ·
High School What are the 6 states of matter?
- Evil
- · Replies 17 ·
Undergrad What is the Collatz Problem and how can it be solved?
- Organic
- · Replies 410 ·
Graduate How the suggestion to found the time travel award
- hey.like
- · Replies 7 ·
Where can I find guidance and information for my scientific inquiries?
- iluvsr20s
- · Replies 2 ·
Undergrad What Are My Options for Proving My Science Knowledge for University Admission?
- JasonRox
- · Replies 6 ·
High School How Long Does Sound Take to Travel from the Voicebox to the Ear?
- dave_t
- · Replies 4 ·
Undergrad Are Cookies More Explosive Than Dynamite Based on Calories?
- Nim
- · Replies 2 ·
News Plea for good info on global warming
- Haelfix
- · Replies 10 ·
High School Factors affecting mobile phone signals
- spill
- · Replies 1 ·
Graduate Need Recommendation for GOOD physics books,
- marcos
- · Replies 2 ·
High School Medical Physics or Physics of Fluids: Which Should I Choose for A-Levels?
- nisha
- · Replies 6 ·
Graduate Experiment and Theory vs. Reality
- protonman
- · Replies 110 ·
Missing Chapters in E.T. Jaynes' Probability Theory - Requesting PDFs/PS files
- daneel_olivaw
- · Replies 4 ·
What Theories of Magnetism Surround Coral Castle in Florida?
- klaw
- · Replies 1 ·
High School Real Life Examples of Physics Theories
- PRodQuanta
- · Replies 4 ·
What science periodicals do you recommend?
- deltabourne
- · Replies 8 ·
Graduate Has anyone used Landau's Mechanics and other volumes in the series?
- Kalimaa23
- · Replies 1 ·
High School What are knot theory and parlor games? Preparing for a lecture?
- KLscilevothma
- · Replies 9 ·
What are Bose-Einstein condensates used for?
- sashats
- · Replies 1 ·
Undergrad Can a Robot be Programmed to Remember its Future?
- ranyart
- · Replies 24 ·
Order Signed Copies from Will - Now Available
- StringFan
- · Replies 1 ·
High School What is the Fascinating World of Chaos Theory?
- alchemist
- · Replies 3 ·
Undergrad LDRs Preferably cadmium sulphide LDRs
- BLUE_CHIP
- · Replies 6 ·
Why was my question moved to homework when it's not homework?
- Conor
- · Replies 4 ·
High School Why is 100 kg of goose feathers equal to 100 kg of mass?
- easydoesit
- · Replies 12 ·
Compassion and positivity are the only solution
- Teo1
- · Replies 5 ·
Undergrad Insane physicists and mathematicians
- betyoudidntthink
- · Replies 67 ·
God's Simple Energy is One Spectrum
- logastro
- · Replies 35 ·
High School Book recommendations for learning physics basics
- Be Happy!
- · Replies 6 ·
Graduate Is dark energy really causing the universe to accelerate?
- mouseonmoon
- · Replies 9 ·
Graduate Origin of Matter: Orthodox Scientific View?
- Canute
- · Replies 8 ·
Undergrad What are error bars on graphs in research papers?
- sk381
- · Replies 4 ·
High School Resources for the physics of stereo systems
- wesl56
- · Replies 1 ·
High School Do dot products have units?
- dishote2003
- · Replies 2 ·
Undergrad Best US schools for physics? Advice?
- Zorodius
- · Replies 30 ·
What about a computational physics forum?
- Charlls
- · Replies 3 ·
What happens in the afterlife? Can we become anything in our next life?
- Sariaht
- · Replies 9 ·
High School Can Infrasound Explain Ghostly Apparitions?
- zoobyshoe
- · Replies 95 ·
High School Why Doesn't Static Cling Develop with Cotton Towels in the Dryer?
- Circuit
- · Replies 5 ·
Graduate Luis Boya on Max Planck's radiation law
- marcus
- · Replies 4 ·
Petrus's Opinion on Gravifugal Force
- agravity
- · Replies 43 ·
Kaku Named to Holiday TSS 'A List
- Greg Bernhardt
- · Replies 2 ·
Graduate How can we extend the concept of sets to deal with infinite dimensions?
- Organic
- · Replies 20 ·