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.
Finding Mass of Object without Scale
  • · Replies 5 ·
Replies
5
Views
14K
Why is F=mg equivalent to gravitational force at different altitudes?
  • · Replies 5 ·
Replies
5
Views
10K
Probability / Probability density
  • · Replies 2 ·
Replies
2
Views
4K
Is Time a Dimension or a Field?
  • · Replies 9 ·
Replies
9
Views
3K
Case of the exploding dinner glass
  • · Replies 17 ·
Replies
17
Views
22K
Why do screws have a 'righty tighty, lefty loosy' convention?
  • · Replies 24 ·
Replies
24
Views
16K
H and Infinity: What Happens to Time and Distance at the Event Horizon?
  • · Replies 9 ·
Replies
9
Views
7K
Why do the tuaregs wear dark blue?
  • · Replies 19 ·
Replies
19
Views
15K
Why does thunder from a distance rumble
  • · Replies 9 ·
Replies
9
Views
5K
Calculating Time for Mass to Reach Velocity with Applied Force
  • · Replies 7 ·
Replies
7
Views
2K
How Can You Extend Your Physics Investigation on Magnetism?
  • · Replies 1 ·
Replies
1
Views
2K
What is the Hutchison Effect and How Does it Melt Metals at Room Temperature?
  • · Replies 4 ·
Replies
4
Views
6K
Understanding the Phenomenon: Why Do Things Shrink When Seen from a Distance?
  • · Replies 5 ·
Replies
5
Views
3K
Unravelling the Mysteries of Spinning 1-Spheres
  • · Replies 6 ·
Replies
6
Views
5K
What Forces Cause Liquid to Rise in a Centrifuge?
  • · Replies 7 ·
Replies
7
Views
4K
Reformatting of Fermat's Principle
  • · Replies 2 ·
Replies
2
Views
3K
Explore the Complexities of Positive and Negative Numbers
  • · Replies 7 ·
Replies
7
Views
4K
Where Does Fire Go? | Science & Math Explained
  • · Replies 5 ·
Replies
5
Views
8K
What are the chances of a weekly podcast?
  • · Replies 1 ·
Replies
1
Views
2K
Lingering Electrical Smells: What Gives?
  • · Replies 2 ·
Replies
2
Views
3K
I wouldn't say that 8-10% is that steep
  • · Replies 6 ·
Replies
6
Views
3K
Will Pushing One End of a 2 Light Second Rod Move the Other End?
  • · Replies 2 ·
Replies
2
Views
2K
How to Convert RGB Values to Wavelength and Vice Versa?
  • · Replies 5 ·
Replies
5
Views
8K
Physics Q&A Game: Calculate Minimum Power for Man-Powered Helicopter
  • · Replies 154 ·
6
Replies
154
Views
21K
Universal gas, Boltzmann's constant
  • · Replies 3 ·
Replies
3
Views
5K
Which Time Zone Should Be Used in Scientific Experiments?
  • · Replies 1 ·
Replies
1
Views
2K
Changing Earth Orbit July 06 Is this for real?
  • · Replies 10 ·
Replies
10
Views
2K
Is Writing a Science Fiction Book Worth the Hard Work?
  • · Replies 14 ·
Replies
14
Views
5K
  • Poll Poll
APS to Change Name: Share Your Suggestions
  • · Replies 8 ·
Replies
8
Views
2K
Does a fly move relevant to your head?
  • · Replies 9 ·
Replies
9
Views
3K
What happens when you shortcircuit a pn diode?
  • · Replies 6 ·
Replies
6
Views
3K
The most fundamental physics that we can observe directly with our senses?
  • · Replies 6 ·
Replies
6
Views
2K
What is the law behind objects separating by size when shaken?
  • · Replies 5 ·
Replies
5
Views
2K
How does density affect wave absorption in substances?
  • · Replies 4 ·
Replies
4
Views
2K
Exploding and Collapsing Stars: The Mystery of Dark Quark Bodies
  • · Replies 1 ·
Replies
1
Views
3K
How does the value of g change at different depths within the Earth?
  • · Replies 8 ·
Replies
8
Views
3K
Multiverse just passes the buck on
  • · Replies 6 ·
Replies
6
Views
4K
Why is Mass-Energy Concentrated in Atoms, Solar Systems & Galaxies?
  • · Replies 4 ·
Replies
4
Views
2K
Propane to Plutonium Conversions?
  • · Replies 1 ·
Replies
1
Views
3K
Fish Bowl Physics: Does Weight Increase?
  • · Replies 5 ·
Replies
5
Views
3K
What Are the Effects of Gravitational Force on Mass and Velocity?
  • · Replies 30 ·
2
Replies
30
Views
5K
What is the 3rd Derivative of Position?
  • · Replies 6 ·
Replies
6
Views
5K
What Are the Different Definitions of Dimension in Mathematics?
  • · Replies 3 ·
Replies
3
Views
3K
Why is the Sky Dark Despite Countless Stars?
  • · Replies 10 ·
Replies
10
Views
3K
How Do Equipotential Lines Relate to Electric Fields and Forces?
  • · Replies 2 ·
Replies
2
Views
2K
Time Space & Einstein: Fun Ideas for 6-8th Grade Class
  • · Replies 12 ·
Replies
12
Views
2K
How much does the Earths Atmosphere weigh?
  • · Replies 7 ·
Replies
7
Views
8K
Is it possible to know the future through a biological mechanism?
  • · Replies 40 ·
2
Replies
40
Views
9K
The Death of the Centre of Mass Theorem.
  • · Replies 54 ·
2
Replies
54
Views
18K
Why we draw rectangular compnents of a vector?
  • · Replies 8 ·
Replies
8
Views
2K
Understanding the Caster Effect: What It Is and How It Works
  • · Replies 5 ·
Replies
5
Views
5K
Innovations for Assisting Astronauts in Space Station Construction
  • · Replies 2 ·
Replies
2
Views
2K
New to atoms - Looking for some advice/clarity
  • · Replies 17 ·
Replies
17
Views
4K
What Is a Postulate in Quantum Mechanics?
  • · Replies 2 ·
Replies
2
Views
4K
Are Humans Gods from Different Perspectives?
  • · Replies 25 ·
Replies
25
Views
21K
How Was the Multiverse Formed According to Michio Kaku?
  • · Replies 2 ·
Replies
2
Views
2K
Ever wondered what law perspective follows?
  • · Replies 5 ·
Replies
5
Views
2K
Understanding the Paradox of Backward Time Travel: Why We Can't Go Back
  • · Replies 173 ·
6
Replies
173
Views
34K
Understanding the Mechanics of Gravity: How and Why It Works
  • · Replies 57 ·
2
Replies
57
Views
9K
A New Concept of what Gravity really is?
  • · Replies 6 ·
Replies
6
Views
6K
Waves and Strings: Gravity's Impact on Plucked Strings from Earth to Orbit
  • · Replies 8 ·
Replies
8
Views
3K
Can We Really Change Time Through Speed?
  • · Replies 5 ·
Replies
5
Views
3K
Relativity vs Quantum Mechanics: Take 2!
  • · Replies 17 ·
Replies
17
Views
3K
A little fun for the ADD physicists
  • · Replies 1 ·
Replies
1
Views
3K
How Do You Calculate Spectral Density from FFT in Fortran 90?
  • · Replies 3 ·
Replies
3
Views
3K
Is methane gas contributing more to global warming than CO2?
  • · Replies 12 ·
Replies
12
Views
4K
What do scales actually tell us?
  • · Replies 3 ·
Replies
3
Views
5K
Can a Bird Lift a Container of Mass 10 Tonnes?
  • · Replies 12 ·
Replies
12
Views
5K
Why Jet Planes' Tails Are Not Always Visible
  • · Replies 5 ·
Replies
5
Views
4K
What is the difference between real and imaginary images in optics?
  • · Replies 2 ·
Replies
2
Views
15K
Anyone tried intercepting a radio station?
  • · Replies 7 ·
Replies
7
Views
6K
Explore General Physics Resources: A Comprehensive List
  • · Replies 2 ·
Replies
2
Views
2K
Can Any Genius Answer My Questions .can Any Body.
  • · Replies 1 ·
Replies
1
Views
2K
Can Time Have Three Dimensions to Explain Relativity and Quantum Entanglement?
  • · Replies 8 ·
Replies
8
Views
4K
Walking the wrong way through a wormhole?
  • · Replies 8 ·
Replies
8
Views
2K
What is the relationship between primes and the distribution of factors?
  • · Replies 39 ·
2
Replies
39
Views
10K
Can Time Travel Take You Anywhere in the Universe?
  • · Replies 10 ·
Replies
10
Views
3K
Disproving Einstein's Energy-Mass Relation
  • · Replies 8 ·
Replies
8
Views
3K
A solid surface model of the sun.
  • · Replies 1 ·
Replies
1
Views
5K
Please explain to me why the speed of light is squared
  • · Replies 18 ·
Replies
18
Views
4K
Is the Sun's Surface Actually Solid and Electrically Conductive?
  • · Replies 3 ·
Replies
3
Views
5K
How is Bimolecular Revolution Influencing Space Travel Technology?
  • · Replies 2 ·
Replies
2
Views
2K
Is Time Travel Possible and How Do Parallel Universes Work?
  • · Replies 23 ·
Replies
23
Views
8K
How Do Halogen Bulbs Connect in Makeup Mirrors?
  • · Replies 3 ·
Replies
3
Views
3K
Unveiling a Relation between 4 Constants
  • · Replies 13 ·
Replies
13
Views
4K
Peter Lynds' paper and his 'theory' of time
  • · Replies 26 ·
Replies
26
Views
26K
Why does my voice change when I talk into A fan.
  • · Replies 13 ·
Replies
13
Views
15K
Uncovering the Truth Behind WWII and Anti-Gravity Technology
  • · Replies 6 ·
Replies
6
Views
3K
Is There a Difference Between Plasma and Plasmoid?
  • · Replies 3 ·
Replies
3
Views
4K
What Is the Correct Spelling of Gustav Robert Kirchhoff's Last Name?
  • · Replies 3 ·
Replies
3
Views
4K
What are the possible scientific explanations for invisibility?
  • · Replies 18 ·
Replies
18
Views
4K
Mysteries of a simple spiral (coil).
  • · Replies 13 ·
Replies
13
Views
4K
Help Needed: Modeling Beam Bending with Electrostatic Forces
  • · Replies 9 ·
Replies
9
Views
2K
Discover the Secret to Creating Perfect Smoke Rings | Ssss Smokin Smoke Rings
  • · Replies 6 ·
Replies
6
Views
3K
Find more information on Myopia (nearsightedness)
  • · Replies 3 ·
Replies
3
Views
2K
How Does the Equation hbar=e^2/e0c Relate to Fundamental Physical Constants?
  • · Replies 6 ·
Replies
6
Views
5K
Understanding the Doppler Effect: Common Misconceptions in Physics Explained"
  • · Replies 1 ·
Replies
1
Views
3K
Comprendre la loi de Schmidt et le potentiel inelastique
  • · Replies 4 ·
Replies
4
Views
5K
At What Speed Do Flat Propellors Mimic a Solid Circular Mass?
  • · Replies 1 ·
Replies
1
Views
2K
Is Crack Pottery? - Get an Opinion
  • · Replies 28 ·
Replies
28
Views
8K