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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.

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Christmas Morning: Crescent Moon and Spica Star Encounter

Mk
Dec 23, 2005 · Replies 17 · Dec 25, 2005

Replies: 17

Graduate In Search of Schroedinger's Reindeer

Evo
Dec 23, 2005 · Replies 3 · Dec 24, 2005

Replies: 3

Graduate How Did Lubos Motl Turn Physics Theories into Christmas Carols?

marcus
Dec 24, 2005 · Replies 2 · Dec 24, 2005

Replies: 2

High School >Time travel is temporarily possible, at low speed :-)

kleinwolf
Dec 6, 2005 · Replies 16 · Dec 24, 2005

Replies: 16

Undergrad Gravity Effects Across Mountains: A WWII Mystery

raburgeson
Dec 22, 2005 · Replies 1 · Dec 22, 2005

Replies: 1

Do any physicists switch to cooking?

Pengwuino
Dec 20, 2005 · Replies 39 · Dec 22, 2005

2

Replies: 39

Graduate Upon the initial cosmological singularity

Loren Booda
Dec 17, 2005 · Replies 5 · Dec 21, 2005

Replies: 5

Does anyone know what became of Jan Hendrik Schön ?

rbj
Dec 20, 2005 · Replies 1 · Dec 21, 2005

Replies: 1

Poll

Who Is Considered the Greatest Physicist of All Time?

FeynmanMH42
Dec 16, 2005 · Replies 81 · Dec 21, 2005

3

Replies: 81

Graduate Are Philosophical Discussions on the Nature of Universe in Line with Physics?

omagdon7
Dec 20, 2005 · Replies 1 · Dec 20, 2005

Replies: 1

Einstein Medals: History & Meaning

Em!ly
Dec 18, 2005 · Replies 1 · Dec 18, 2005

Replies: 1

Undergrad Woman survives fall from skydiving

lektor
Dec 17, 2005 · Replies 25 · Dec 18, 2005

Replies: 25

Physics Fifth Edition by Giancoli answers

howester77
Dec 17, 2005 · Replies 1 · Dec 18, 2005

Replies: 1

Explore How to Make a Lightsaber: Physics in Star Wars

runicle
Dec 12, 2005 · Replies 30 · Dec 15, 2005

2

Replies: 30

Undergrad Fourier Analysis: Independent Study for Senior in HS

cscott
Dec 8, 2005 · Replies 13 · Dec 14, 2005

Replies: 13

Winning a £4000 Scholarship for Physics at Southampton University

Just some guy
Dec 13, 2005 · Replies 11 · Dec 14, 2005

Replies: 11

Graduate What is Hyperdimensional Physics and Why is it Controversial?

vincentm
Dec 10, 2005 · Replies 3 · Dec 12, 2005

Replies: 3

Undergrad Why Doesn't the Log Spin in a Half-Water, Half-Air Container?

Alkatran
Dec 10, 2005 · Replies 19 · Dec 11, 2005

Replies: 19

High School NEED HELP GUYS Love you folks Beautiful formula

QuantumTheory
Dec 8, 2005 · Replies 11 · Dec 9, 2005

Replies: 11

I don't know how to elaborate on this question any more, and I don't

karnekesh
Dec 8, 2005 · Replies 1 · Dec 8, 2005

Replies: 1

Undergrad Could Apophis, the Giant Asteroid, Be Diverted from Hitting Earth?

Harut82
Dec 7, 2005 · Replies 2 · Dec 7, 2005

Replies: 2

Graduate Earth Flying Away from Sun: What Does the Math Say?

Newlaws
Dec 1, 2005 · Replies 19 · Dec 7, 2005

Replies: 19

High School Does Wood Create Noise When Vibrated?

KingNothing
Dec 5, 2005 · Replies 7 · Dec 6, 2005

Replies: 7

Graduate Paradox of Motion: Physics & Math Explained

Ratzinger
Sep 26, 2005 · Replies 37 · Dec 5, 2005

2

Replies: 37

High School What are vvvdat tables and how can they help with introductory physics homework?

Gokul43201
Apr 17, 2005 · Replies 35 · Dec 5, 2005

2

Replies: 35

Experience a Fascinating Life Webcast on Dec. 1st with Einstein at PhysicsWeb

ZapperZ
Nov 30, 2005 · Replies 5 · Dec 3, 2005

Replies: 5

Undergrad Math for 'Curtain Shooter' Games

Bucky
Dec 3, 2005 · Replies 2 · Dec 3, 2005

Replies: 2

Are Electrical Engineers Secretly Physicists?

Pengwuino
Dec 1, 2005 · Replies 28 · Dec 3, 2005

Replies: 28

Does Studying Advanced Physics Make Your Brain Feel Fried?

bjon-07
Dec 2, 2005 · Replies 3 · Dec 2, 2005

Replies: 3

Undergrad The Great Beer Debate: Is Drinking Beer Good for Weight Loss?

joejoeko
Dec 2, 2005 · Replies 3 · Dec 2, 2005

Replies: 3

Graduate Is Einstein's Genius Overrated in the World of Physics?

eljose
Nov 29, 2005 · Replies 12 · Dec 1, 2005

Replies: 12

High School Understanding Resonance & Tuning Forks

KingNothing
Nov 29, 2005 · Replies 3 · Nov 30, 2005

Replies: 3

Graduate Are World Counts the Key to Understanding the Born Rule?

RobinHanson
Nov 24, 2005 · Replies 35 · Nov 29, 2005

2

Replies: 35

Graduate G:"Solving Orbital Geometry: Achieve Escape Velocity & Orbit Free Return

RandallB
Nov 11, 2005 · Replies 12 · Nov 29, 2005

Replies: 12

Help Martin Black Understand T2+S3=T8

MartinBlack
Nov 28, 2005 · Replies 8 · Nov 28, 2005

Replies: 8

High School Can a Car Run Solely on a Battery and Alternator?

misskitty
Nov 27, 2005 · Replies 3 · Nov 27, 2005

Replies: 3

Can we stand on the surface of the Dead Sea?

touqra
Nov 21, 2005 · Replies 6 · Nov 27, 2005

Replies: 6

Famous physicists related to famous entertainers

ONJ's Noble Steed
Nov 24, 2005 · Replies 19 · Nov 26, 2005

Replies: 19

High School Understanding the "Phase" of Waves

mtongton
Nov 23, 2005 · Replies 2 · Nov 25, 2005

Replies: 2

High School Something I noticed about eye droppers

Pengwuino
Nov 25, 2005 · Replies 13 · Nov 25, 2005

Replies: 13

Fog Fluid - Cherry Scented Fog Making Liquid

Mk
Nov 18, 2005 · Replies 2 · Nov 25, 2005

Replies: 2

High School How do you shoot a man out of a cannon?

ShawnD
Nov 23, 2005 · Replies 11 · Nov 25, 2005

Replies: 11

Can You Speed Up Ice Tray Freezing?

Pengwuino
Nov 19, 2005 · Replies 34 · Nov 24, 2005

2

Replies: 34

Graduate Does Randomness Intrinsically Exist in Nature?

kleinwolf
Nov 17, 2005 · Replies 8 · Nov 24, 2005

Replies: 8

Undergrad How Does the Conservation of Energy Apply to the Existence of Space?

vincentm
Nov 18, 2005 · Replies 5 · Nov 22, 2005

Replies: 5

Graduate Does my antigravity engine convert gravity into spin?

eosphorus
Nov 22, 2005 · Replies 2 · Nov 22, 2005

Replies: 2

Graduate Revisiting the Definition of Speed: Is Distance/Time Arbitrary?

honestrosewater
Nov 20, 2004 · Replies 63 · Nov 21, 2005

3

Replies: 63

Graduate How do we know values for a true vacuum?

Lucretius
Nov 18, 2005 · Replies 5 · Nov 20, 2005

Replies: 5

Undergrad Why Don't We Have Anti-Gravity Devices Yet?

dgoodpasture2005
Nov 17, 2005 · Replies 49 · Nov 19, 2005

2

Replies: 49

Want to Write a Bestselling Book on Physics and Electronics? Share Your Tips!

ElectroPhysics
Nov 23, 2004 · Replies 4 · Nov 18, 2005

Replies: 4

Graduate What is the Expansion of the Universe and What Material is it Expanding Into?

dgoodpasture2005
Nov 17, 2005 · Replies 8 · Nov 18, 2005

Replies: 8

Undergrad Gravity on the surface of a Hollow Earth

Cosmo16
Nov 9, 2005 · Replies 14 · Nov 15, 2005

Replies: 14

Graduate Gravitational Constant: Deriving Newton's Law with a TOE

daniel_i_l
Nov 1, 2005 · Replies 12 · Nov 13, 2005

Replies: 12

Can Cows Really Not Be Tipped?

cscott
Nov 13, 2005 · Replies 13 · Nov 13, 2005

Replies: 13

High School The Mystery of Bicycle Wheel Sizes: Stability or Ease of Use?

siddharth
Nov 12, 2005 · Replies 1 · Nov 12, 2005

Replies: 1

High School Integral in Physics - Learn How to Solve Problems

blackcode
Nov 9, 2005 · Replies 4 · Nov 11, 2005

Replies: 4

Michio Kaku's Hyperspace: Dying Galaxy & "Let There Be Light

Cladson
Nov 10, 2005 · Replies 3 · Nov 11, 2005

Replies: 3

Graduate Power source that turns physics on its head

Human Being
Nov 4, 2005 · Replies 25 · Nov 10, 2005

Replies: 25

Undergrad British Physics Olympiad - Intellectual Masochism?

Just some guy
Nov 4, 2005 · Replies 15 · Nov 9, 2005

Replies: 15

Man pulls saltshaker through glass

PIT2
Nov 8, 2005 · Replies 4 · Nov 9, 2005

Replies: 4

Undergrad Can Earth Hold Invisible Objects?

Niode
Oct 31, 2005 · Replies 18 · Nov 7, 2005

Replies: 18

Einstein & UFOs: What Would He Say?

Mt. Nixion
Oct 30, 2005 · Replies 23 · Nov 6, 2005

Replies: 23

High School High Frequencies in Computer CPUs

Hamster
Nov 6, 2005 · Replies 21 · Nov 6, 2005

Replies: 21

Spongebob Farting Underwater - What Happens Next?

Anything
Nov 5, 2005 · Replies 9 · Nov 6, 2005

Replies: 9

Graduate Can We Ever Have a Theory of Everything?

bola
Aug 30, 2005 · Replies 16 · Nov 5, 2005

Replies: 16

Graduate Why is there a growing trend of ignorance towards Special Relativity?

Pengwuino
Nov 3, 2005 · Replies 37 · Nov 5, 2005

2

Replies: 37

News Is ABC's Nuclear Scandal at Penn State Overblown?

motai
Oct 13, 2005 · Replies 8 · Nov 1, 2005

Replies: 8

Undergrad Why is integral notation sometimes written in a strange way?

amcavoy
Nov 1, 2005 · Replies 1 · Nov 1, 2005

Replies: 1

Undergrad Learn Computational Physics: Best Language & Packages for Computer Simulations

SahinTC
Oct 28, 2005 · Replies 14 · Nov 1, 2005

Replies: 14

Undergrad What Causes Sonoluminescence and Acoustic Levitation?

Serj
Oct 26, 2005 · Replies 6 · Oct 31, 2005

Replies: 6

Graduate Advanced Physics Tutorials: A Directory

quantumdude
Oct 18, 2005 · Replies 5 · Oct 28, 2005

Replies: 5

Physics of Combat: The Science of Fighting on SKY 1

Warren Dudley
Oct 27, 2005 · Replies 4 · Oct 27, 2005

Replies: 4

High School Compasses with Quickly Rotating Needles: Do They Exist?

zhen
Oct 18, 2005 · Replies 5 · Oct 27, 2005

Replies: 5

Richard Feynman, 1965 Physics Nobel Prize Winner

feynman82
Oct 25, 2005 · Replies 7 · Oct 26, 2005

Replies: 7

High School Why is the Sky Blue? Reasons Explained

Mk
Oct 24, 2005 · Replies 15 · Oct 25, 2005

Replies: 15

Graduate Sources of non-linearity in detector

Thinkmarble
Oct 20, 2005 · Replies 3 · Oct 24, 2005

Replies: 3

What Songs Mention Isaac Newton?

wasteofo2
Oct 22, 2005 · Replies 16 · Oct 23, 2005

Replies: 16

End day from national geographic

QuantumTheory
Oct 23, 2005 · Replies 1 · Oct 23, 2005

Replies: 1

High School Help Solve Physics Problems - Physics Forums

Diane_
Oct 21, 2005 · Replies 9 · Oct 22, 2005

Replies: 9

Einstein's Big Idea: Oct 11 on PBS

ZapperZ
Oct 7, 2005 · Replies 11 · Oct 21, 2005

Replies: 11

Undergrad Can Home Computers Run Hurricane Models?

dimensionless
Oct 20, 2005 · Replies 4 · Oct 21, 2005

Replies: 4

High School Introductory Physics Tutorials: A Directory

quantumdude
Oct 18, 2005 · Replies 3 · Oct 20, 2005

Replies: 3

High School How to apply first and second laws of thermodynamics?

Clausius2
Oct 18, 2005 · Replies 24 · Oct 19, 2005

Replies: 24

Undergrad Dialysis: how does this relate to physics?

r3dxP
Oct 19, 2005 · Replies 3 · Oct 19, 2005

Replies: 3

High School Physics Resource: AJP Accessible to Undergrads & HS

nbo10
Oct 19, 2005 · Replies 2 · Oct 19, 2005

Replies: 2

Graduate What is Dr. Luther Ebwood's Cosignial Frequency Theory?

MAAAAHK
Oct 15, 2005 · Replies 2 · Oct 18, 2005

Replies: 2

Interesting Facts about Richard Feynmann

Mk
Oct 13, 2005 · Replies 19 · Oct 17, 2005

Replies: 19

High School Why Does Physics Use Greek Letters?

lawtonfogle
Oct 17, 2005 · Replies 4 · Oct 17, 2005

Replies: 4

Graduate Understanding the Accuracy and Precision of the Definition of Second

darkar
Oct 9, 2005 · Replies 4 · Oct 16, 2005

Replies: 4

High School Should Scientists Bet on the Impossibility of Perpetual Motion?

pragmaticindulgence
Oct 14, 2005 · Replies 2 · Oct 15, 2005

Replies: 2

Undergrad Understanding Lorenzo's Nonlinear Effect

jme
Oct 14, 2005 · Replies 4 · Oct 14, 2005

Replies: 4

Undergrad Applications of computational physics?

dimensionless
Oct 13, 2005 · Replies 5 · Oct 14, 2005

Replies: 5

High School Negative vs. Positive Signs: An Easy Guide

SS2006
Oct 13, 2005 · Replies 1 · Oct 13, 2005

Replies: 1

High School The Effects of Brown Noise on Sleep Quality

itsjustme
Oct 13, 2005 · Replies 7 · Oct 13, 2005

Replies: 7

Undergrad Researching Virtual Energy: Purpose of Vacuum Tubes

Abstruce
Oct 13, 2005 · Replies 2 · Oct 13, 2005

Replies: 2

Trouble Understanding Idea: Searching for Resources

Lonewolf
Oct 13, 2005 · Replies 2 · Oct 13, 2005

Replies: 2

Undergrad Is Perpetual Motion Real? Lessons from I Robot and the Laws of Thermodynamics

Ki Man
Oct 12, 2005 · Replies 8 · Oct 13, 2005

Replies: 8

Michio Kaku & Cassini: Has His View Changed?

Telos
Jul 30, 2005 · Replies 12 · Oct 12, 2005

Replies: 12

High School Waves: Can Speed & Frequency Be Changed?

Nitric
Oct 12, 2005 · Replies 1 · Oct 12, 2005

Replies: 1

Why is this website a great resource for learning about physics and space?

Lisa!
Oct 9, 2005 · Replies 42 · Oct 12, 2005

2

Replies: 42

sidebar

Physics

Physics is the scientific study of the fundamental principles governing the behavior of matter and energy in the universe. It explores the nature of space, time, motion, forces, and the interactions between particles and fields.

Physicists seek to formulate laws and theories that describe the fundamental forces shaping the cosmos, from the microscopic world of subatomic particles to the vastness of galaxies. Divided into classical and modern physics, the discipline encompasses mechanics, electromagnetism, thermodynamics, quantum mechanics, and relativity.

Physics not only provides a framework for understanding the physical world but also drives technological innovations, shaping our comprehension of reality and inspiring advancements in various scientific and technological domains.

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