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
High School Write physics extended essay (IB)
- alireza1992
- · Replies 6 ·
Undergrad A couple questions about gravity
- fezmaster
- · Replies 5 ·
High School Join two broke pieces of the same material
- scientifico
- · Replies 4 ·
High School What happens to a fan inside a system without air?
- KillerX
- · Replies 22 ·
High School Should the Rear Wheel Be Larger on Cars?
- ashishsinghal
- · Replies 10 ·
High School How can we distinguish scalars from vectors?
- moatasim23
- · Replies 24 ·
An observation regarding pop sci books
- robertjford80
- · Replies 3 ·
Graduate Should luminous intensity be a fundamental unit?
- swampwiz
- · Replies 8 ·
High School Air Density vs Height above Earth
- Philosophaie
- · Replies 1 ·
High School When anti-matter and matter collide are they destroyed?
- Karimspencer
- · Replies 5 ·
Undergrad Is our solar system in danger from the galactic rift?
- mattbatson
- · Replies 4 ·
High School Where can I find physics resources for complete beginners?
- herbally
- · Replies 6 ·
Do atoms decay or spin forever?
- johnebgood108
- · Replies 5 ·
Undergrad Square root transformed to 3/2 power instead of 1/2
- rickp
- · Replies 2 ·
Identifying unknown physics lab equipment from old collection
- Adventurer
- · Replies 33 ·
Small Liquid CO2 Manufacturing Machine?
- berkeman
- · Replies 8 ·
Heading towards what ? and when will reach the destination ?
- Zubeen
- · Replies 6 ·
Graduate Where can I find rigorous analysis of sympathetic resonance
- PhilDSP
- · Replies 4 ·
High School How Is Solar Panel Efficiency Calculated?
- Miike012
- · Replies 1 ·
Undergrad An Astoundingly BAD Physics News Report
- ZapperZ
- · Replies 12 ·
Undergrad Mars-One: People living on Mars in 2023
- lvlastermind
- · Replies 63 ·
Need logical explanation for strange event
- Illini70
- · Replies 13 ·
Graduate Is Antimatter a Misnomer?
- Alex-NL
- · Replies 36 ·
Undergrad Power of the Pendulum - Proof of Ultra-Efficiency?
- zoobyshoe
- · Replies 5 ·
Graduate Why would someone decorate their mausoleum with complex equations and symbols?
- MSFerguson
- · Replies 7 ·
Undergrad Finding Uncertainty of Average Values
- marvolo1300
- · Replies 9 ·
Does michio kaku hate leonard susskind?
- robertjford80
- · Replies 18 ·
See the Transit of Venus Live Here
- Drakkith
- · Replies 28 ·
Undergrad Why is the ember of a cigarette harder than the non-burning tobacco alone?
- BrainSalad
- · Replies 1 ·
Venus - Transit of VenusWhat did I capture during the recent transit of Venus?
- CaptainBlack
- · Replies 2 ·
Undergrad Is Anti-Gravity Levitation Possible for Human Transport?
- Robin07
- · Replies 7 ·
High School Today and tomorrow (5/11 and 5/12) an extremely large group of
- Andy Resnick
- · Replies 11 ·
High School What Causes the Blue Color of Sea Water?
- moatasim23
- · Replies 3 ·
High School Physics book recommendations for 9th grade beginners
- brandontod97
- · Replies 5 ·
High School Storing Dry Ice in a Freezer: Is it Safe?
- MACHO-WIMP
- · Replies 4 ·
Graduate Unit of Measure of Exponentiated Item
- Steve Zissou
- · Replies 16 ·
Undergrad Question Regarding Operational Amps
- ZxcvbnM2000
- · Replies 5 ·
Graduate H2O Vibrational Transitions (molecular as opposed to election) Why ?
- karen_lorr
- · Replies 5 ·
Physics Forums getting some love at MSN
- Norman
- · Replies 13 ·
High School WHat is the uncertainty in a metre rule?
- mutineer123
- · Replies 59 ·
Undergrad Critique of greenhouse effect paper draft
- charmedbeauty
- · Replies 12 ·
High School What exactly is a wave and how does it propagate?
- RadiantL
- · Replies 2 ·
High School 12V Lead Acid Battery Charging & discharging rate?
- kamarn
- · Replies 1 ·
Graduate Expected time of arrival with uncertainty
- username27
- · Replies 2 ·
Setting up a Physics revision site
- Jambon
- · Replies 22 ·
Undergrad What is the impact of speaker direction on noise levels?
- gmahler
- · Replies 4 ·
Undergrad Do physical systems always take the path of least resistance?
- DreamChaser77
- · Replies 7 ·
High School What are Chords? What is the smallest unit in physics?
- Mason_Free
- · Replies 4 ·
Graduate Fast Fourier Transform in Real Time
- olbert
- · Replies 8 ·
Undergrad Distribution of molecules throughout the atmosphere
- charmedbeauty
- · Replies 7 ·
Experiment finding particles travelling faster than light
- find_the_fun
- · Replies 2 ·
High School Understanding Reverse Osmosis Water Filters: Fact or Fiction?
- chell
- · Replies 4 ·
Graduate How to challenge a well established theory?
- abhijitp88
- · Replies 35 ·
Graduate Energy conservation, evolution, randomness, and consciousness in physics
- thevisi0nary
- · Replies 2 ·
Physics is copies idea from sci fi, i dont think show
- tiantsai
- · Replies 2 ·
High School Do two lithium-ion batteries with different amp hours deliver the same power on startup?
- LBrandt
- · Replies 23 ·
Undergrad MARVEL's fictional Adamantium in real life?
- Garrus Vakari
- · Replies 5 ·
High School Waves - Matter is transported or not?
- tcharbuck31
- · Replies 4 ·
Are physicists generally shy and antisocial?
- Casco
- · Replies 51 ·
Undergrad Accoustic wave propagation and effects in a tube
- allblowdup
- · Replies 2 ·
Graduate Mixing He, O, Ge, N and U: What Could Happen?
- chrisan
- · Replies 2 ·
Undergrad What is the difference between dot product and cross product in physics?
- physics kiddy
- · Replies 5 ·
High School Creating an Egg-Carrying Device Without a Parachute
- CameronG
- · Replies 2 ·
High School Adding lengths with very different significant figures
- Excalibur1152
- · Replies 13 ·
Undergrad Carrying Uncertainty in Math: A Paradox?
- t6x3
- · Replies 2 ·
Undergrad Energy - Can energy be negative?
- Vinay R Hegde
- · Replies 7 ·
Undergrad Magnetic-like resistance between palms
- Inertigratus
- · Replies 4 ·
High School Why Can't Vernier Calipers Measure Less Than 1 cm Accurately?
- Seniour Baloc
- · Replies 2 ·
High School Why candle reduces cigarette smoke odor?
- pixel01
- · Replies 12 ·
High School Physics topic ideas for a 15-minute AP class presentation
- xpaulinabearx
- · Replies 4 ·
Undergrad Determining Mass of Individual Objects in Bags - Oil, Candy, Millikan?
- zeja7
- · Replies 7 ·
Undergrad Can You Determine an Epicenter in a Classroom Seismic Activity Simulation?
- Apple96
- · Replies 4 ·
High School Do Vibrating Systems Only Relate to Sound Waves?
- jayadds
- · Replies 5 ·
Undergrad How does the Jiskoot 210 sampler work?
- vietdieu
- · Replies 1 ·
What objects can I use to improve my ball curving skills?
- ste20man
- · Replies 2 ·
Graduate How to Locate Original Quantum Mechanics Articles by Bohm and Dirac?
- cragar
- · Replies 5 ·
High School What's the difference between entrainment and resonance?
- quantum1234
- · Replies 3 ·
Graduate Validity of physics or any result of it
- DarkFalz
- · Replies 7 ·
High School Anti Matter - Does it exist on Earth?
- kevinsetiono
- · Replies 3 ·
High School Can we see nuclear explosion from orbit?
- Chitose
- · Replies 17 ·
Moving Airplane; Strongman Competition
- leroyjenkens
- · Replies 1 ·
Graduate Can Magnetic Super Fluids Create Gravity Waves?
- cragar
- · Replies 10 ·
Graduate How Can Catalysts Enhance the Recombination of Oppositely Charged Ions?
- CloudChamber
- · Replies 4 ·
Undergrad Standing waves on a circular plate.
- ImaLooser
- · Replies 2 ·
Graduate Practical Physics: Esoteric Parallels
- Pkruse
- · Replies 9 ·
Greatest physicists of all time alive and dead
- KeplerJunior
- · Replies 8 ·
High School Do gravitational forces exist in the Bermuda Triangle?
- azlan naeem
- · Replies 7 ·
Undergrad How safe is a digital-TV repeater?
- logics
- · Replies 25 ·
Undergrad The common practice to not put equations in pop science books
- robertjford80
- · Replies 33 ·
High School The Scientific Method: Why is it Important?
- Drakkith
- · Replies 19 ·
What Are the Best Physics Websites?
- dlivingston
- · Replies 9 ·
High School Do Thoughts Have Physical Mass?
- AbsoluteZer0
- · Replies 2 ·
High School Myth or Bust: Tint shatters sun roof
- flossurteeth
- · Replies 3 ·
Revisiting Einstein's Biggest Blunder: Uncertainty and its Impact on Science
- ilhan8
- · Replies 8 ·
High School Contribution to physics- who should be included?
- charmedbeauty
- · Replies 6 ·
High School What Physics Experiment Can Combine Computers, Soccer, or Music?
- Drumz
- · Replies 1 ·
Graduate How Does the Equation F→∏ A l Z Relate to Fundamental Physics?
- phys-if
- · Replies 2 ·
High School Waves can cause the displacement of an object.
- Karimspencer
- · Replies 9 ·
Graduate J.J. Thomson's cathode ray experiment
- jcortez91
- · Replies 2 ·
Undergrad Why Doesn't Gravity Act as a Restoring Force in Wave Pulses?
- Sammy101
- · Replies 6 ·