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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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Insights How to Avoid Breaking Physics With Your “What If” Question
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3
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14K
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Graduate List of credible physics journals
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5
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19K
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Insights How to Better Define Information in Physics - Comments
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9
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7K
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Undergrad Physics FAQs: All Your Questions Answered
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0
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16K
Undergrad Solid State Physics and Chameleon Color Changes
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0
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476
Graduate What researchers think of the Coriolis force
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1
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341
Graduate Unsolved Problems in Near Surface Geophysics
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4
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3K
Graduate Looking for learning resources for Clifford Algebra
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1
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344
Undergrad Why Does Snow Pack Better Near the Melting Point?
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6
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164
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22K
Undergrad A high school physics problem demonstrating relative motion
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0
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481
High School Audio frequency of a humidifier
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12
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587
Graduate Variations on Sacharov's problem
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6
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602
New person here, where do I post my own personal hypothesis?
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15
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1K
Graduate RIP Chen Ning Yang (1922-2025)
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6
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1K
Graduate Predictions for the Nobel Prize in Physics 2025 (results: John Clarke, Michel H. Devoret and John M. Martinis)
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37
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5K
Graduate RIP Daniel Kleppner (1932-2025)
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4
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822
Insights Thinking Outside The Box Versus Knowing What’s In The Box
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26
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8K
Best physics magazines?
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1
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418
Einstein vs Newton - Who is your favorite and why?
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28
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1K
Graduate To get rid of a singularity in the Lagrange equations
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11
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784
News RIP Kenneth Nordtvedt
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1
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519
Graduate APS's 2026 W.K.H. Panofsky Prize!
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1
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543
High School Opposite law propose
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2
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741
High School How do walk-in freezers not give people hypothermia? [they do]
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13
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2K
High School States of matter: "viscoelastic fluid", familiar term is "cream"
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5
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531
Graduate RIP John Stachel (1928-2025)
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2
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959
Graduate Could the Laws of Physics Be Proportional to Entropy?
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5
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662
Graduate Complexity Physics and Tipping Points in Chess
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22
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2K
Graduate RIP Mary Gaillard (1939-2025)
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3
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786
Graduate RIP George F. Smoot III (1945-2025)
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1
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731
Undergrad Raman Spectroscopy help
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1
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508
A Big Thank You to Physics Forums
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1
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655
James Hartle RIP: Remembering a Beloved GR Teacher
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5
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2K
High School Why can't Solar panels be hemispherical, or a curved strip type?
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2
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38
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3K
Graduate RIP Rainer Weiss (1932-2025)
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1
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721
Graduate How do people explore new ideas in physics?
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2
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52
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3K
Undergrad I need to simulate clothing meshes for hanging garments
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3
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625
High School Gravity in science fiction movies
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16
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976
Graduate RIP Jayant Narlikar (1938-2025)
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1
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743
Graduate AI vs. German Physics Olympiad
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5
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773
Undergrad Physics inserted in society
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5
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810
Seeking Interested Physicists
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2
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1K
R.I.P. Sir Francis Graham-Smith 1923- 2025
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1
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783
Graduate Speculative theory
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2
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1K
Dr. Eddie Boyes' Youtube videos on Quantum Entanglement
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3
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2K
High School Development of computer chips cooling
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4
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1K
Graduate RIP Edwin F Taylor (1931-2025)
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3
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1K
Graduate Using AI to evaluate white papers?
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2
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42
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Graduate Publishing Physics Without Institution: Any Tips?
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2
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40
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6K
Undergrad Why weather apps show absolute pressure?
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18
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1K
Undergrad 'Set of pearls' mathematics / physics help
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8
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3K
Graduate Thought Experiment: "A Glimpse into Infinity"
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1
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1K
Drake Equation/Fermi Paradox vs. Hubble/JWST
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4
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1K
High School Name or Label for the outermost point of a rotating object
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3
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2K
News Gerard't Hooft Interview
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6
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2K
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Poll: For physics and math, Notebook vs Loose leaf papers
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2
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6K
Undergrad What can be used as a Frequency generator to make Chladni patterns?
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3
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2K
Undergrad How Can I Build a DIY High Vacuum System Using Copper Instead of Glass?
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5
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3K
High School Looking for info on old, unlabeled Geissler tubes
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16
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3K
Undergrad Landau golden list
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2
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Graduate Veritasium Videos we all want (maybe)
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4
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Graduate RIP Basil Hiley (1935–2025)
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3
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2K
High School The satellite and its work done
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2
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1K
Undergrad The work done by an artificial satellite
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4
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Graduate Trying to understand the meaning of "Sum Rules"
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6
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2K
Rather interesting Physics Olympiad poster
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5
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1K
Undergrad Are there reflections in the fourth dimension?
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4
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1K
Flawed Artist's Renditions of Cosmological Events
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3
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2K
Graduate Can the radio noise of a civilization decrease over time?
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6
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1K
Undergrad Cloud seeding and firefighting
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11
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2K
Graduate RIP Leon N Cooper (1930 - 2024) - Nobel 1972
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1
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2K
News Wasn't Parker Solar Probe about to resume communication with Earth?
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5
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1K
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Graduate Theory Of Everything (ToE)
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27
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2K
Why are the paths of our cosmic explorations pretty?
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16
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High School Explanations about Kardashev type 1 civilizations
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7
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3K
Static electricity (like tree lightning) on my ceiling?
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24
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4K
Undergrad AI Predicting Physics Research Results
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1
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2K
Shout out to my HS Science teacher from 10 years ago
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2
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Graduate Predictions for Physics Nobel Prize 2024 (and the results)
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2
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37
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10K
Undergrad Airflow through an air extraction grill
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3
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2K
Graduate What is a less painful way to study Lagrangian Mechanics?
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4
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1K
High School How do I keep my room cool when my housemate wants the heating on?
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15
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3K
Undergrad Should the Unit of Momentum Be Named After Emmy Noether?
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Undergrad Direct and alternating current, a personal approach to understand them
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1
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Is This Year's Physics Nobel on Advances in AI Physics?
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1
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High School Lottery physics: ball placement and positions in lottery games
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12
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Physics has taken the wrong turn
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20
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Graduate How much funding/resources are spent in string theory research?
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14
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2K
Undergrad Why does my ceiling glow in the dark?
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12
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Graduate Supporting neurodivergent talent: ADHD, autism, and dyslexia in physics and space sciences
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21
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1K
Shroedinger's Cat, New Yorker Cartoon
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2
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2K
High School Wi-Fi Interference: How Microwaves Can Affect Your Wireless Connection
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25
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7K
High School Question about sig figs and rounding: How to handle when there are 2 parts to the problem?
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13
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3K
Graduate RIP James D. Bjorken (1934 - 2024)
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2
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1K
Graduate Questions about information limits in the Universe
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6
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Graduate RIP Tsung-Dao Lee (1926-2024), Nobel 1957
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7
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2K
Grow to High Energy, Nuclear and Mayonnaise, Particle Physics subforum
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1
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Graduate Bruker TopSpin import function in pulse program
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2
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2K
Graduate Can quantum mechanics be combined with game theory?
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26
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3K
Undergrad Popular future physics beliefs that are completely wrong?
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8
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2K
Undergrad Decorrelation steps in Wolff algorithm
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0
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2K
Undergrad How Does Increasing Size Affect Punching Speed and Light Speed Limits?
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27
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2K
Undergrad Fiction Writer with question for research physicists - Looking for opinions and experiences with peer-reviewed publishing
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3
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2K
Undergrad Need to identify a physicist from a documentary on TV some years ago
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2
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3K