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Other Physics Topics Forum

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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Matter can neither be created or destroyed

Apr 28, 2011 · Replies 29 · May 4, 2011

Replies: 29

Views: 19K

Brightness of a Bulb: Power vs. Current Explained

Apr 29, 2011 · Replies 23 · May 4, 2011

Replies: 23

Views: 45K

When gravity acts on an object it doesn't require energy, does it?

May 3, 2011 · Replies 1 · May 3, 2011

Replies: 1

Views: 2K

Calculating Output of Solar Cells in KWH

Apr 23, 2011 · Replies 3 · May 3, 2011

Replies: 3

Views: 3K

Are There Physical Phenomena That Cannot Be Quantized?

Apr 28, 2011 · Replies 2 · May 3, 2011

Replies: 2

Views: 2K

Physical intuitions for simple statistical distributions

May 2, 2011 · Replies 3 · May 3, 2011

Replies: 3

Views: 3K

Most would I think, see this as a 3 dimensional world. On this

Apr 27, 2011 · Replies 18 · May 2, 2011

Replies: 18

Views: 3K

Do Atoms Get Destroyed When Metal Melts?

Mar 7, 2011 · Replies 3 · May 2, 2011

Replies: 3

Views: 3K

How Does a Weighing Machine Measure True Weight?

May 2, 2011 · Replies 4 · May 2, 2011

Replies: 4

Views: 6K

How Does Time Impact the Force Calculation in F=ma for a Falling Object?

May 2, 2011 · Replies 5 · May 2, 2011

Replies: 5

Views: 2K

How is Governing Executed in Wind Mills?

May 2, 2011 · Replies 2 · May 2, 2011

Replies: 2

Views: 2K

Melting Point: How Heat Changes Liquids to Solids

Apr 28, 2011 · Replies 10 · May 2, 2011

Replies: 10

Views: 4K

Is Infinity Plausible in the Universe?

May 1, 2011 · Replies 4 · May 1, 2011

Replies: 4

Views: 3K

What Does B · ∇ Mean in Curl Formula?

Apr 30, 2011 · Replies 6 · May 1, 2011

Replies: 6

Views: 3K

Find Force Req'd to Move Object: Weight & Calc Mu=F/Normal Reaction

Apr 28, 2011 · Replies 4 · Apr 30, 2011

Replies: 4

Views: 6K

What sense(s) does a person use to tell how fast he is running?

Apr 29, 2011 · Replies 9 · Apr 30, 2011

Replies: 9

Views: 3K

Philosophy Major Seeking Physics Answers

Apr 25, 2011 · Replies 52 · Apr 30, 2011

2

Replies: 52

Views: 15K

Is scientific knowledge ultimately limited

Apr 29, 2011 · Replies 9 · Apr 30, 2011

Replies: 9

Views: 3K

Can we directly measure something without changing it?

Apr 29, 2011 · Replies 5 · Apr 30, 2011

Replies: 5

Views: 5K

Why is argon better than a vacuum?

Apr 27, 2011 · Replies 9 · Apr 29, 2011

Replies: 9

Views: 8K

I have a question Conerning firearms.

Apr 26, 2011 · Replies 16 · Apr 29, 2011

Replies: 16

Views: 3K

Liquid Flow Rate: A vs B - Understanding Fluid Dynamics

Apr 28, 2011 · Replies 11 · Apr 28, 2011

Replies: 11

Views: 4K

Need in depth understanding of Simple physic terms

Apr 28, 2011 · Replies 1 · Apr 28, 2011

Replies: 1

Views: 2K

Contact problem Analytical solution

Apr 28, 2011 · Replies 1 · Apr 28, 2011

Replies: 1

Views: 2K

What is the Advantage of Using a Gaussian Distribution of Noise in a System?

Apr 26, 2011 · Replies 6 · Apr 28, 2011

Replies: 6

Views: 4K

Characteristics of the Me-163 Komet

Sep 5, 2010 · Replies 6 · Apr 27, 2011

Replies: 6

Views: 4K

Is Teleportation Possible? A Hypothesis

Apr 26, 2011 · Replies 16 · Apr 27, 2011

Replies: 16

Views: 3K

Can a Vacuum Generate Energy?

Apr 27, 2011 · Replies 3 · Apr 27, 2011

Replies: 3

Views: 5K

Drying rate depending on curvature?

Apr 27, 2011 · Replies 4 · Apr 27, 2011

Replies: 4

Views: 3K

Investigating the Motion of Floating Particles in Escaping Powder Experiments

Apr 27, 2011 · Replies 1 · Apr 27, 2011

Replies: 1

Views: 2K

How Can I Increase Current to Power an LED with Lemon Batteries?

Apr 25, 2011 · Replies 2 · Apr 27, 2011

Replies: 2

Views: 6K

Why does a rainbow stay still while it's raining?

Apr 26, 2011 · Replies 3 · Apr 27, 2011

Replies: 3

Views: 2K

Who Conducted This Experiment?

Apr 26, 2011 · Replies 2 · Apr 26, 2011

Replies: 2

Views: 1K

Understanding Regular and Outgoing Functions in Vector Spherical Wave Functions

Apr 25, 2011 · Replies 4 · Apr 26, 2011

Replies: 4

Views: 3K

What is the wavelength of tsunami waves?

Apr 24, 2011 · Replies 10 · Apr 26, 2011

Replies: 10

Views: 6K

Why does gas expand without temperature increase or external force?

Apr 26, 2011 · Replies 3 · Apr 26, 2011

Replies: 3

Views: 5K

Mass vs. compression with rollers

Apr 25, 2011 · Replies 1 · Apr 25, 2011

Replies: 1

Views: 2K

So what is smell exactly? I'm sorry if this is really basic but I'm

Apr 25, 2011 · Replies 2 · Apr 25, 2011

Replies: 2

Views: 2K

Fractal geometry in crumpled paper

Apr 24, 2011 · Replies 1 · Apr 25, 2011

Replies: 1

Views: 3K

Mass vs Compression: How Do They Exert Pressure?

Apr 24, 2011 · Replies 1 · Apr 24, 2011

Replies: 1

Views: 2K

The Science Behind Ice Skating: Debunking the Myth of Pressure and Melting Point

Apr 24, 2011 · Replies 4 · Apr 24, 2011

Replies: 4

Views: 5K

Blackbody effect hypothetical question

Apr 24, 2011 · Replies 3 · Apr 24, 2011

Replies: 3

Views: 2K

Is the Force to Peel Off Tape the Same as the Force to Drag the Surface?

Apr 24, 2011 · Replies 3 · Apr 24, 2011

Replies: 3

Views: 2K

Radiolytic Oxidation: Mechanism & Effects on Nuclear Graphite

Feb 17, 2011 · Replies 1 · Apr 24, 2011

Replies: 1

Views: 5K

Shortest distance you can travel?

Apr 15, 2011 · Replies 62 · Apr 24, 2011

3

Replies: 62

Views: 12K

Explain Kepler's 3rd Law of Planetary Motion

Apr 20, 2011 · Replies 14 · Apr 23, 2011

Replies: 14

Views: 20K

Newton's Law of Universal Gravitation: FG= Fg=Gm/r2

Apr 23, 2011 · Replies 1 · Apr 23, 2011

Replies: 1

Views: 2K

Can someone explain this to me.

Feb 20, 2011 · Replies 6 · Apr 23, 2011

Replies: 6

Views: 2K

Is it possible that the sum total of everything is nothing?

Apr 21, 2011 · Replies 7 · Apr 22, 2011

Replies: 7

Views: 5K

Harmonic waver length with respect to open tube diameter

Apr 22, 2011 · Replies 1 · Apr 22, 2011

Replies: 1

Views: 2K

Why planets move ant-clockwise direction

Apr 21, 2011 · Replies 3 · Apr 22, 2011

Replies: 3

Views: 4K

Does Exponential Decay Fail at the Quantum Level?

Apr 21, 2011 · Replies 4 · Apr 22, 2011

Replies: 4

Views: 3K

Calculating Moment of Force on Bicycle Pedal

Apr 14, 2011 · Replies 10 · Apr 21, 2011

Replies: 10

Views: 3K

What is the breaking point of quartz crystal

Apr 20, 2011 · Replies 1 · Apr 20, 2011

Replies: 1

Views: 7K

Vector Multiplication: Dot & Cross Products

Apr 20, 2011 · Replies 4 · Apr 20, 2011

Replies: 4

Views: 3K

Physics Movie Project: Defying Laws of Physics in The Matrix

Apr 19, 2011 · Replies 29 · Apr 19, 2011

Replies: 29

Views: 10K

Do we know what creates the wind?

Apr 19, 2011 · Replies 1 · Apr 19, 2011

Replies: 1

Views: 3K

What Would Negative Mass Look Like and How Would It Behave?

Apr 19, 2011 · Replies 1 · Apr 19, 2011

Replies: 1

Views: 3K

The Laws of Physics: Fundamentals or Variations?

Apr 18, 2011 · Replies 3 · Apr 19, 2011

Replies: 3

Views: 2K

How Can I Post Equations and Formulas?

Apr 18, 2011 · Replies 3 · Apr 19, 2011

Replies: 3

Views: 1K

Time evolution of a diffusion equation

Mar 13, 2011 · Replies 18 · Apr 19, 2011

Replies: 18

Views: 4K

Understanding Navier's Slip Condition: Fixed Walls & Applicability

Apr 18, 2011 · Replies 1 · Apr 19, 2011

Replies: 1

Views: 6K

Calculating Force for 500lb Electric Actuator Door

Aug 24, 2010 · Replies 5 · Apr 19, 2011

Replies: 5

Views: 7K

Understanding Spoilers and Down Force: How They Impact High Speed Performance

Apr 17, 2011 · Replies 5 · Apr 19, 2011

Replies: 5

Views: 5K

Any ideas of how gyroscopes are applied in environment?

Apr 18, 2011 · Replies 1 · Apr 18, 2011

Replies: 1

Views: 2K

How Does Drop Height Affect Glass Shattering?

Sep 6, 2008 · Replies 10 · Apr 18, 2011

Replies: 10

Views: 11K

How to tell how fast temerature changes.

Apr 18, 2011 · Replies 2 · Apr 18, 2011

Replies: 2

Views: 2K

Looking for a fan physics lecture topic for mathematicians

Apr 17, 2011 · Replies 3 · Apr 18, 2011

Replies: 3

Views: 2K

What Are Some Overlooked Physics Concepts in Wrestling and Other Combat Sports?

Apr 17, 2011 · Replies 7 · Apr 18, 2011

Replies: 7

Views: 9K

Maintaining Submerged Objects: Understanding Density and Height

Apr 18, 2011 · Replies 2 · Apr 18, 2011

Replies: 2

Views: 2K

Fresnel Zone: Ellipsoids, Energy & Wavelengths

Apr 18, 2011 · Replies 1 · Apr 18, 2011

Replies: 1

Views: 3K

Physics Equation: Share Your Fav Equation & Explain What It Describes

Apr 18, 2011 · Replies 1 · Apr 18, 2011

Replies: 1

Views: 2K

Discovering Stokes Law to Understanding its Origins and Applicability

Dec 11, 2007 · Replies 4 · Apr 17, 2011

Replies: 4

Views: 7K

Does Absolute Zero Affect Aging Like Twin Theory?

Apr 17, 2011 · Replies 1 · Apr 17, 2011

Replies: 1

Views: 3K

Where do I find information about gyroscopes?

Apr 16, 2011 · Replies 5 · Apr 17, 2011

Replies: 5

Views: 2K

Do Atoms Die or Get Old?

Apr 16, 2011 · Replies 3 · Apr 17, 2011

Replies: 3

Views: 3K

Programming Orbit Expansion: Change Radius w/ Centripetal Force

Apr 16, 2011 · Replies 2 · Apr 16, 2011

Replies: 2

Views: 2K

The Conundrum of Duplicating Atoms in Time Travel

Apr 11, 2011 · Replies 7 · Apr 16, 2011

Replies: 7

Views: 4K

Why Does Touching the Ground Cause Electric Shock When Holding a Power Line?

Apr 15, 2011 · Replies 17 · Apr 16, 2011

Replies: 17

Views: 5K

Athletics Question: Establishing Relationship between Energy & Distance

Apr 15, 2011 · Replies 3 · Apr 15, 2011

Replies: 3

Views: 2K

Why is the unit prefix micro pronounced as myoo instead of mu?

Apr 14, 2011 · Replies 12 · Apr 15, 2011

Replies: 12

Views: 7K

Simply Supported Beam Q: Is It Possible?

Apr 15, 2011 · Replies 5 · Apr 15, 2011

Replies: 5

Views: 6K

Is Gravity Relative to Density Alone

Apr 13, 2011 · Replies 3 · Apr 14, 2011

Replies: 3

Views: 2K

A device that can measure height

Apr 14, 2011 · Replies 2 · Apr 14, 2011

Replies: 2

Views: 3K

Bending a patterned beam (FOSDT)

Apr 14, 2011 · Replies 3 · Apr 14, 2011

Replies: 3

Views: 2K

Converting from hbar = 1 to physical units

Mar 23, 2011 · Replies 44 · Apr 14, 2011

2

Replies: 44

Views: 13K

What is Mass? Understanding the Concept and Implications in Physics

Apr 14, 2011 · Replies 2 · Apr 14, 2011

Replies: 2

Views: 2K

Phase difference in Stationary waves

Apr 14, 2011 · Replies 1 · Apr 14, 2011

Replies: 1

Views: 5K

What is the Highest RPM in the Universe?

Jan 21, 2007 · Replies 25 · Apr 14, 2011

Replies: 25

Views: 36K

How Do You Convert CFM to Thrust?

Apr 13, 2011 · Replies 1 · Apr 14, 2011

Replies: 1

Views: 9K

Is an Oil Distribution System Necessary for Optimal Oil Immersion Microscopy?

Apr 13, 2011 · Replies 4 · Apr 14, 2011

Replies: 4

Views: 4K

Does an object lose mass when raised against a gravitational field?

Apr 13, 2011 · Replies 8 · Apr 13, 2011

Replies: 8

Views: 4K

Are Energy Laws in Physics Really Just Coincidences?

Apr 13, 2011 · Replies 2 · Apr 13, 2011

Replies: 2

Views: 2K

Can we communicate with people outside a black hole?

Apr 8, 2011 · Replies 16 · Apr 12, 2011

Replies: 16

Views: 3K

How I learn in cambridge university

Apr 12, 2011 · Replies 1 · Apr 12, 2011

Replies: 1

Views: 2K

Complex Analysis for Integrals in Physics

Apr 11, 2011 · Replies 2 · Apr 12, 2011

Replies: 2

Views: 4K

Same note (pitch), male and female voices - what's different?

Apr 11, 2011 · Replies 2 · Apr 12, 2011

Replies: 2

Views: 9K

Step up transformers - confusion

Apr 12, 2011 · Replies 1 · Apr 12, 2011

Replies: 1

Views: 2K

Calculating Force of a Small Potato Cannon

Apr 11, 2011 · Replies 1 · Apr 12, 2011

Replies: 1

Views: 2K

Does Gravity Pull Outwards on Objects Within Hollow Spheres?

Apr 10, 2011 · Replies 16 · Apr 12, 2011

Replies: 16

Views: 4K

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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