Other Physics Topics Forum

Post thread
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.
Are there different concepts of time travel and how do they work?
  • · Replies 3 ·
Replies
3
Views
3K
What is the Collatz Problem and how can it be solved?
  • · Replies 410 ·
14
Replies
410
Views
34K
Where Does Matter's Solidity Truly Begin?
  • · Replies 29 ·
Replies
29
Views
9K
Understanding the Compton Effect: How Light Reflects on a Mirror Explained
  • · Replies 8 ·
Replies
8
Views
3K
How the suggestion to found the time travel award
  • · Replies 7 ·
Replies
7
Views
3K
Could the Unified Field Theory be Right Under Our Noses?
  • · Replies 5 ·
Replies
5
Views
3K
Where can I find guidance and information for my scientific inquiries?
  • · Replies 2 ·
Replies
2
Views
2K
Major Breakthrough in Theory of Relativity
  • · Replies 3 ·
Replies
3
Views
3K
What Are My Options for Proving My Science Knowledge for University Admission?
  • · Replies 6 ·
Replies
6
Views
3K
How Long Does Sound Take to Travel from the Voicebox to the Ear?
  • · Replies 4 ·
Replies
4
Views
3K
What is the weight of a container filled with flying birds?
  • · Replies 1 ·
Replies
1
Views
3K
What Are the Methods to Measure Gibbs Free Energy and Enthalpy?
  • · Replies 1 ·
Replies
1
Views
5K
Estimating B-Field Required to Levitate a Train
  • · Replies 2 ·
Replies
2
Views
3K
I have a humble plan to create a T.o.E.
  • · Replies 4 ·
Replies
4
Views
4K
Three Mile Island 25th Anniversary Actions
  • · Replies 3 ·
Replies
3
Views
5K
Are Cookies More Explosive Than Dynamite Based on Calories?
  • · Replies 2 ·
Replies
2
Views
3K
What is the difference between Ave. and Instantaneous Speed?
  • · Replies 3 ·
Replies
3
Views
3K
Factors affecting mobile phone signals
  • · Replies 1 ·
Replies
1
Views
9K
What is the Connection Between the Graviton and the Higgs Boson?
  • · Replies 11 ·
Replies
11
Views
4K
Need Recommendation for GOOD physics books,
  • · Replies 2 ·
Replies
2
Views
5K
What is the center of mass location for the Earth-Moon system?
  • · Replies 6 ·
Replies
6
Views
3K
Quarks are the solution to the GUT
  • · Replies 7 ·
Replies
7
Views
2K
Medical Physics or Physics of Fluids: Which Should I Choose for A-Levels?
  • · Replies 6 ·
Replies
6
Views
3K
Missing Chapters in E.T. Jaynes' Probability Theory - Requesting PDFs/PS files
  • · Replies 4 ·
Replies
4
Views
6K
What Theories of Magnetism Surround Coral Castle in Florida?
  • · Replies 1 ·
Replies
1
Views
4K
Real Life Examples of Physics Theories
  • · Replies 4 ·
Replies
4
Views
8K
Sir, i get the fllowing reply for my question 'can helium be
  • · Replies 1 ·
Replies
1
Views
2K
Fusion Claim: New Data Supports Physicist's Experiment
  • · Replies 10 ·
Replies
10
Views
3K
Momentum Equation | Tricia's Question
  • · Replies 5 ·
Replies
5
Views
2K
Solve Two Physics Problems: Ebonite Rod & Electroscope
  • · Replies 1 ·
Replies
1
Views
2K
Landau Series: Mechanics, QM & Fields - Experiences?
  • · Replies 1 ·
Replies
1
Views
3K
Knot Theory & Parlor Games: Explained for High School Students
  • · Replies 9 ·
Replies
9
Views
6K
Concervation and Corresopndence Law
  • · Replies 1 ·
Replies
1
Views
3K
Unanswered Questions Surrounding Time Travel Possibilities
  • · Replies 3 ·
Replies
3
Views
4K
Why is Polystyrene a good insulator
  • · Replies 2 ·
Replies
2
Views
37K
Unraveling the Connection Between Gravity and Heisenberg's Uncertainty Principle
  • · Replies 39 ·
2
Replies
39
Views
8K
Anyone knows maybe what are the BEC used for?
  • · Replies 1 ·
Replies
1
Views
2K
Can a Robot be Programmed to Remember its Future?
  • · Replies 24 ·
Replies
24
Views
5K
Bose-Einstein Condensate: Electromagnetic & Antigravitic Forces
  • · Replies 19 ·
Replies
19
Views
3K
Order Signed Copies from Will - Now Available
  • · Replies 1 ·
Replies
1
Views
2K
Was Einstein Wrong About Singularity Theory?
  • · Replies 6 ·
Replies
6
Views
3K
Are Forces in Different Dimensions Actually the Same?
  • · Replies 1 ·
Replies
1
Views
7K
What is the Fascinating World of Chaos Theory?
  • · Replies 3 ·
Replies
3
Views
3K
What Are the Unique Properties of Superconductors?
  • · Replies 6 ·
Replies
6
Views
2K
LDRs Preferably cadmium sulphide LDRs
  • · Replies 6 ·
Replies
6
Views
3K
Will Changing Loop Size Affect Induced Current? | Magnetic Field Question
  • · Replies 3 ·
Replies
3
Views
6K
What will be the current in the resistence after 5 minutes?
  • · Replies 2 ·
Replies
2
Views
3K
Sandbag Experiment: Reason Why Some Believe Motion 0m/s, Others 10m/s
  • · Replies 14 ·
Replies
14
Views
4K
Can Linear Wormholes Revolutionize Spacecraft Fuel Recycling?
  • · Replies 18 ·
Replies
18
Views
4K
Is This Physics Question Considered Homework or Just Important?
  • · Replies 4 ·
Replies
4
Views
2K
How Does Gravity Affect a Flag Waved on the Moon's Surface?
  • · Replies 4 ·
Replies
4
Views
6K
Comparing Mass: 100 kg of Goose Feathers vs. 100 kg of Mass - Explained
  • · Replies 12 ·
Replies
12
Views
5K
Effects of Gas Release from LPG Cylinder on Contents
  • · Replies 3 ·
Replies
3
Views
4K
What is the significance of the RC time constant in a simple RC circuit?
  • · Replies 6 ·
Replies
6
Views
3K
Do Gravitons Exist in the 4th Spatial Dimension?
  • · Replies 4 ·
Replies
4
Views
3K
Compassion and positivity are the only solution
  • · Replies 5 ·
Replies
5
Views
2K
Is Dark Matter Different from Black Matter?
  • · Replies 17 ·
Replies
17
Views
4K
What are the applications of Bragg diffraction in material science?
  • · Replies 1 ·
Replies
1
Views
2K
Measure of free energy, which equipment are needed
  • · Replies 1 ·
Replies
1
Views
3K
God's Simple Energy is One Spectrum
  • · Replies 35 ·
2
Replies
35
Views
6K
Momentum Conservation in Inelastic Collisions: Explaining Newton's Laws
  • · Replies 14 ·
Replies
14
Views
3K
What Causes the Interchangeability of Wave Lengths in the Quantum Universe?
  • · Replies 6 ·
Replies
6
Views
3K
What Are the Best Books and Resources for Physics Beginners?
  • · Replies 6 ·
Replies
6
Views
3K
How Do I Convert Pounds to Kilograms?
  • · Replies 6 ·
Replies
6
Views
60K
Two circular coils and magnetic fields
  • · Replies 1 ·
Replies
1
Views
2K
Origin of Matter: Orthodox Scientific View?
  • · Replies 8 ·
Replies
8
Views
4K
Is Redshift Really Proof of Universe Expansion?
  • · Replies 9 ·
Replies
9
Views
5K
Help in understanding the graphs in technical papers
  • · Replies 4 ·
Replies
4
Views
3K
The Physics of Audio: Research & Info Needed
  • · Replies 1 ·
Replies
1
Views
3K
Can We Determine the Age of the Universe Based on the Color of the Night Sky?
  • · Replies 1 ·
Replies
1
Views
2K
Standard Model as TOE? Arguments Against & Need for More Particles
  • · Replies 4 ·
Replies
4
Views
4K
What Shapes Can We Visualize in the Fourth Dimension?
  • · Replies 62 ·
3
Replies
62
Views
15K
What Is the Connection Between Zero-Dimensional Points and the Origin of Mass?
  • · Replies 37 ·
2
Replies
37
Views
5K
Why Do Stars Twinkle? Supernovas & Photons
  • · Replies 8 ·
Replies
8
Views
5K
Why Don't Quarks and Antiquarks Annihilate Each Other in Mesons?
  • · Replies 5 ·
Replies
5
Views
3K
Understanding the Units of the Dot Product
  • · Replies 2 ·
Replies
2
Views
14K
Is 4-Dimensional Space Achievable with Superstring Theory?
  • · Replies 3 ·
Replies
3
Views
3K
Building a Rube Golberg Machine: Ideas Needed
  • · Replies 5 ·
Replies
5
Views
3K
Does a Static Magnetic Point Dipole Generate an Electric Field?
  • · Replies 1 ·
Replies
1
Views
2K
Thought experiment(escape from black holes)
  • · Replies 11 ·
Replies
11
Views
3K
Best US schools for physics? Advice?
  • · Replies 30 ·
2
Replies
30
Views
5K
Understanding the Difference Between Deceleration and Deceleration Force
  • · Replies 2 ·
Replies
2
Views
2K
Enhancing Ball Mass in Air Jet Experiments: Tips and Techniques
  • · Replies 5 ·
Replies
5
Views
2K
Why is a rainbow curved and how does it appear from an airplane?
  • · Replies 3 ·
Replies
3
Views
11K
Exploring the Mass & Shape of the Sun
  • · Replies 14 ·
Replies
14
Views
3K
What happens in the afterlife? Can we become anything in our next life?
  • · Replies 9 ·
Replies
9
Views
3K
Why Doesn't Static Cling Develop with Cotton Towels in the Dryer?
  • · Replies 5 ·
Replies
5
Views
7K
How Does Dimension Influence Direction and Freedom in Physics?
  • · Replies 21 ·
Replies
21
Views
9K
An ether theory with GR limit and EEP
  • · Replies 12 ·
Replies
12
Views
3K
What are the properties of gravitons?
  • · Replies 15 ·
Replies
15
Views
3K
Equation for Floating Ball in Air Jet: F=ma
  • · Replies 2 ·
Replies
2
Views
2K
Petrus's Opinion on Gravifugal Force
  • · Replies 43 ·
2
Replies
43
Views
7K
Kaku Named to Holiday TSS 'A List
  • · Replies 2 ·
Replies
2
Views
3K
Block and tackle system formula
  • · Replies 2 ·
Replies
2
Views
11K
What is the force propelling us through time?
  • · Replies 55 ·
2
Replies
55
Views
9K
How can we extend the concept of sets to deal with infinite dimensions?
  • · Replies 20 ·
Replies
20
Views
4K
Why are there substances with different densities
  • · Replies 6 ·
Replies
6
Views
4K
Is Time Travel Truly Possible or Just a Fantasy?
  • · Replies 4 ·
Replies
4
Views
3K
Is Time a Proven Fact or Still Just a Theory?
  • · Replies 22 ·
Replies
22
Views
4K
What Determines the Color of a Pigment?
  • · Replies 4 ·
Replies
4
Views
3K