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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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Understanding Precision and Accuracy: Demystifying Uncertainty in Measurements

Feb 19, 2009 · Replies 1 · Feb 19, 2009

Replies: 1

Views: 3K

How Vacuum is Measured: Understanding the Measurement of Vacuum in Hg Units

Feb 18, 2009 · Replies 4 · Feb 19, 2009

Replies: 4

Views: 10K

Deriving formula to calculate theta for artillery

Feb 18, 2009 · Replies 1 · Feb 19, 2009

Replies: 1

Views: 5K

Explore Future Household Energy Concepts with a Powerball Generator

Feb 16, 2009 · Replies 1 · Feb 18, 2009

Replies: 1

Views: 2K

Understanding Amplitude Modulation for Radios

Feb 18, 2009 · Replies 1 · Feb 18, 2009

Replies: 1

Views: 2K

Does it Take More Energy to Produce a 9 Volt Battery?

Feb 17, 2009 · Replies 12 · Feb 18, 2009

Replies: 12

Views: 3K

Does Standing on a Chair & Jumping Affect the Force Felt by the Floor?

Feb 18, 2009 · Replies 4 · Feb 18, 2009

Replies: 4

Views: 8K

How AC Circuits Work: Explained for Beginners

Feb 17, 2009 · Replies 13 · Feb 18, 2009

Replies: 13

Views: 3K

Anyone know about flourescent dyes?

Feb 17, 2009 · Replies 1 · Feb 17, 2009

Replies: 1

Views: 2K

Why Does My Mum Constantly Affect Electronics?

Feb 16, 2009 · Replies 7 · Feb 17, 2009

Replies: 7

Views: 2K

How Do We Determine the Direction of an Interstellar Signal?

Feb 16, 2009 · Replies 2 · Feb 16, 2009

Replies: 2

Views: 2K

How to Calculate Force from Drop Testing Blades on Cloth?

Feb 13, 2009 · Replies 3 · Feb 16, 2009

Replies: 3

Views: 2K

Cylindrical Symmetry - Gauss's Law

Feb 15, 2009 · Replies 5 · Feb 15, 2009

Replies: 5

Views: 7K

Is it possible to convert kg/(kWh) to litres/100m ?

Feb 15, 2009 · Replies 3 · Feb 15, 2009

Replies: 3

Views: 8K

How can RGB reproduce all (most) colours?

Feb 13, 2009 · Replies 4 · Feb 15, 2009

Replies: 4

Views: 3K

Does the voltage reading across a rotating DC motor decrease due to back EMF?

Feb 12, 2009 · Replies 7 · Feb 15, 2009

Replies: 7

Views: 5K

Why Are Visible Light Waves So Puny?

Feb 14, 2009 · Replies 4 · Feb 14, 2009

Replies: 4

Views: 2K

Maximizing Dice Fairness: Examining Symmetry and Center of Gravity

Feb 14, 2009 · Replies 7 · Feb 14, 2009

Replies: 7

Views: 2K

How far away could we detect ourselves?

Feb 14, 2009 · Replies 4 · Feb 14, 2009

Replies: 4

Views: 3K

Reaching absolute zero and BEC

Feb 14, 2009 · Replies 1 · Feb 14, 2009

Replies: 1

Views: 3K

How is horizontal range affected?

Feb 12, 2009 · Replies 2 · Feb 14, 2009

Replies: 2

Views: 3K

Laplace transform of step function

Feb 12, 2009 · Replies 1 · Feb 12, 2009

Replies: 1

Views: 3K

Measuring Viscosity (Viscometer)

Feb 11, 2009 · Replies 9 · Feb 12, 2009

Replies: 9

Views: 13K

Wind turbine, conceptual question

Feb 12, 2009 · Replies 3 · Feb 12, 2009

Replies: 3

Views: 3K

Waves, Energy, Blackbodies and Modes

Feb 12, 2009 · Replies 3 · Feb 12, 2009

Replies: 3

Views: 2K

Which Rocket Body Shape is Aerodynamically Superior: Saturn V or N1?

Feb 10, 2009 · Replies 5 · Feb 12, 2009

Replies: 5

Views: 7K

Do We Radiate Heat in Closed Rooms?

Jul 15, 2007 · Replies 25 · Feb 12, 2009

Replies: 25

Views: 19K

Does Ruby Emit Red When Illuminated with Green Light?

Feb 11, 2009 · Replies 1 · Feb 12, 2009

Replies: 1

Views: 1K

Focal Length experiment readings

Feb 12, 2009 · Replies 1 · Feb 12, 2009

Replies: 1

Views: 10K

Puzzling Physics: Questions on Speed of Light, Pressure, Absolute Velocity

Feb 9, 2009 · Replies 10 · Feb 11, 2009

Replies: 10

Views: 3K

Why Do Some Tensor Functions Appear Isotropic in Component Notation?

Nov 4, 2006 · Replies 1 · Feb 11, 2009

Replies: 1

Views: 7K

Finding the Right Book to Understand the Doppler Effect

Feb 10, 2009 · Replies 1 · Feb 11, 2009

Replies: 1

Views: 2K

A .5 kg rock is dropped from a height of 20 meters into a pail

Feb 10, 2009 · Replies 5 · Feb 11, 2009

Replies: 5

Views: 3K

What are the effects of earthquake waves on skyscrapers?

Feb 10, 2009 · Replies 3 · Feb 10, 2009

Replies: 3

Views: 2K

Mastering the 90-Degree Wave Lag: A Quick and Easy Guide

Feb 9, 2009 · Replies 1 · Feb 9, 2009

Replies: 1

Views: 2K

Discover the Fastest Moving Place on Earth: World Whirled

Dec 4, 2008 · Replies 14 · Feb 9, 2009

Replies: 14

Views: 3K

Should Uncertainty Dictate Significant Figures in Physics Calculations?

Feb 8, 2009 · Replies 4 · Feb 9, 2009

Replies: 4

Views: 3K

Can a Water-Filled Flywheel Generate Extra Energy While in Motion?

Feb 8, 2009 · Replies 5 · Feb 8, 2009

Replies: 5

Views: 3K

DDWFTTW Turntable Test: 5 Min Video - Is It Conclusive?

Jan 10, 2009 · Replies 1K · Feb 8, 2009

34

Replies: 1K

Views: 128K

Question concerning Ideal Gas Law correction to a teacher & tactons

Feb 6, 2009 · Replies 6 · Feb 8, 2009

Replies: 6

Views: 3K

Where would an ideal wire break?

Feb 7, 2009 · Replies 3 · Feb 7, 2009

Replies: 3

Views: 2K

What is Energy? Is it Tangible or Physical?

Feb 5, 2009 · Replies 9 · Feb 6, 2009

Replies: 9

Views: 11K

Plastic on cable, UHF flashback prevention?

Feb 6, 2009 · Replies 2 · Feb 6, 2009

Replies: 2

Views: 2K

Where do you need topology in physics?

Feb 6, 2009 · Replies 1 · Feb 6, 2009

Replies: 1

Views: 3K

Why Do We Get Zapped by Door Knobs? Understanding the Science Behind It

Feb 5, 2009 · Replies 4 · Feb 5, 2009

Replies: 4

Views: 5K

Where does the sun rise, w/ axial tilt?

Feb 2, 2009 · Replies 9 · Feb 5, 2009

Replies: 9

Views: 9K

Why is earth pin longer than other two in a plug top?

Feb 5, 2009 · Replies 5 · Feb 5, 2009

Replies: 5

Views: 15K

Double Pole Switch Used After KWH Metre in Homes

Feb 5, 2009 · Replies 3 · Feb 5, 2009

Replies: 3

Views: 5K

Vacuum Expansion: Understanding the Final States of Closed Systems

Feb 5, 2009 · Replies 2 · Feb 5, 2009

Replies: 2

Views: 4K

How can I accurately measure irradiance for my UV sanitization device design?

Feb 4, 2009 · Replies 2 · Feb 5, 2009

Replies: 2

Views: 7K

Multifluid Manometer: Practical Uses & Benefits

Feb 4, 2009 · Replies 1 · Feb 4, 2009

Replies: 1

Views: 8K

Is Energy Required to Ride a Bicycle the Same for Every Rider?

Feb 3, 2009 · Replies 3 · Feb 3, 2009

Replies: 3

Views: 7K

What Are the Fundamental Numbers Essential for the Universe's Existence?

Feb 3, 2009 · Replies 1 · Feb 3, 2009

Replies: 1

Views: 5K

Calculating Surface Strength for Aluminum Foil and Other Materials"

Jan 30, 2009 · Replies 6 · Feb 3, 2009

Replies: 6

Views: 3K

Find the Center of Mass: Tutorials & Problem Solutions

Dec 9, 2008 · Replies 6 · Feb 3, 2009

Replies: 6

Views: 3K

Logical Error of Cavendish Experiment

Jan 30, 2009 · Replies 27 · Feb 3, 2009

Replies: 27

Views: 9K

Linear Simple Harmonic Oscillator: period a direct linear proportion to mass?

Feb 2, 2009 · Replies 1 · Feb 2, 2009

Replies: 1

Views: 7K

Find Distance Between Earth & Moon: Apply Circular Motion & Gravitation

Jan 30, 2009 · Replies 9 · Feb 2, 2009

Replies: 9

Views: 2K

Understand Sinusoidal Waves: Problem Solving

Jan 24, 2009 · Replies 10 · Feb 2, 2009

Replies: 10

Views: 3K

Gravity at the centre of the Earth?

Feb 1, 2009 · Replies 7 · Feb 2, 2009

Replies: 7

Views: 3K

Effect of a Vacuum on Liquid Boiling Point

Feb 2, 2009 · Replies 1 · Feb 2, 2009

Replies: 1

Views: 2K

Investigating Stokes Law: Different Formulas, Different Results?

Feb 1, 2009 · Replies 2 · Feb 2, 2009

Replies: 2

Views: 2K

Is Cold a Universal Phenomenon in Space?

Feb 1, 2009 · Replies 7 · Feb 1, 2009

Replies: 7

Views: 6K

Why are objects with higher center of mass less stable?

Feb 1, 2009 · Replies 1 · Feb 1, 2009

Replies: 1

Views: 5K

A request for advice on studying theoretical physics

Feb 1, 2009 · Replies 9 · Feb 1, 2009

Replies: 9

Views: 3K

Why Are There Two Forms of the Poisson Equation?

Jan 31, 2009 · Replies 4 · Feb 1, 2009

Replies: 4

Views: 5K

Understanding the Phenomenon of Colors Combining to Create White Light

Feb 1, 2009 · Replies 4 · Feb 1, 2009

Replies: 4

Views: 2K

Proving Mom Wrong - Calculating Airsoft Impacts at 40 Yards (120ft)

Jan 31, 2009 · Replies 11 · Jan 31, 2009

Replies: 11

Views: 5K

How Do Metronomes Achieve Synchronization?

Jan 30, 2009 · Replies 1 · Jan 30, 2009

Replies: 1

Views: 3K

Is Joseph Newman's Energy Machine a Hoax?

Jan 30, 2009 · Replies 1 · Jan 30, 2009

Replies: 1

Views: 2K

Help building something that will go back and forth

Jan 30, 2009 · Replies 1 · Jan 30, 2009

Replies: 1

Views: 6K

Propagation sequencing in series circuit?

Jan 30, 2009 · Replies 3 · Jan 30, 2009

Replies: 3

Views: 2K

How Can You Design an Egg Protective Capsule with Cardboard and a Parachute?

Jan 26, 2009 · Replies 1 · Jan 29, 2009

Replies: 1

Views: 5K

What is Nanotechnology?

Jan 28, 2009 · Replies 3 · Jan 28, 2009

Replies: 3

Views: 2K

Help Needed: Understanding Gauss's Law and Electric Field

Jan 28, 2009 · Replies 4 · Jan 28, 2009

Replies: 4

Views: 3K

Does Time Really Slow Down Near Massive Bodies, or Is It Just Light?

Jan 28, 2009 · Replies 4 · Jan 28, 2009

Replies: 4

Views: 2K

Challenge question for physicists

Jan 28, 2009 · Replies 3 · Jan 28, 2009

Replies: 3

Views: 3K

Any good Physics Interactive Programs out there?

Jan 7, 2009 · Replies 6 · Jan 28, 2009

Replies: 6

Views: 24K

Is humid air really heavier than dry air?

Jan 27, 2009 · Replies 2 · Jan 27, 2009

Replies: 2

Views: 6K

Hourglass on Moon: Flow Speed Compared to Earth

Jan 26, 2009 · Replies 5 · Jan 27, 2009

Replies: 5

Views: 4K

Whenever energy is added to a system, the system gains mass

Jan 27, 2009 · Replies 3 · Jan 27, 2009

Replies: 3

Views: 8K

How Can I Accurately Determine Pressure at Vena Contracta to Prevent Cavitation?

Jan 27, 2009 · Replies 1 · Jan 27, 2009

Replies: 1

Views: 11K

How Do Bayonet Connections Function in Cryostats for Liquid Helium Transfer?

Jan 26, 2009 · Replies 2 · Jan 26, 2009

Replies: 2

Views: 2K

Is this a formula or just nothing?

Jan 23, 2009 · Replies 10 · Jan 24, 2009

Replies: 10

Views: 2K

Spinor Boosts: Weinberg's QFT Book Insights on Rotation and Momentum Effects

Nov 4, 2006 · Replies 1 · Jan 24, 2009

Replies: 1

Views: 2K

Why can we shield some forces but not others?

Jan 19, 2009 · Replies 13 · Jan 24, 2009

Replies: 13

Views: 6K

Calculating Density Alttitude of Air knoing temp/baro/humidity?

Jan 23, 2009 · Replies 3 · Jan 24, 2009

Replies: 3

Views: 7K

Understanding the Gravitational Constant: Equation, Impact, and Controversy

Jan 20, 2009 · Replies 25 · Jan 23, 2009

Replies: 25

Views: 6K

Aerogel wallpaper versus air-pocketed wallpaper

Jan 18, 2009 · Replies 8 · Jan 22, 2009

Replies: 8

Views: 6K

Need Suggestions For An Experiment - Upper Division Undergraduate

Jan 19, 2009 · Replies 3 · Jan 21, 2009

Replies: 3

Views: 3K

Calculating Gravity of a Single Body: Equation and Explanation

Jan 20, 2009 · Replies 8 · Jan 20, 2009

Replies: 8

Views: 4K

Can a Fly Stop a Train? Analyzing Newton's 3rd Law

Jan 18, 2009 · Replies 15 · Jan 20, 2009

Replies: 15

Views: 15K

Testing VHF Radio Wave Performance with Different Antennas

Jan 19, 2009 · Replies 8 · Jan 20, 2009

Replies: 8

Views: 3K

Dirty snow (snirt) & melting point

Jan 18, 2009 · Replies 3 · Jan 19, 2009

Replies: 3

Views: 3K

How Does Helmet Design Impact Safety and Collision Outcomes?

Jan 18, 2009 · Replies 3 · Jan 19, 2009

Replies: 3

Views: 5K

Cloaking Devices: New Discoveries & Modifications

Jan 15, 2009 · Replies 2 · Jan 18, 2009

Replies: 2

Views: 3K

Is the Universe Truly Nothing When Matter and Anti-Matter Cancel Each Other Out?

Jan 17, 2009 · Replies 7 · Jan 18, 2009

Replies: 7

Views: 2K

About solving differential equations

Jan 16, 2009 · Replies 1 · Jan 18, 2009

Replies: 1

Views: 3K

Chosing appropriate letters (labels)

Jan 17, 2009 · Replies 1 · Jan 17, 2009

Replies: 1

Views: 2K

Force of Head Striking a Marble Floow

Jan 16, 2009 · Replies 3 · Jan 16, 2009

Replies: 3

Views: 3K

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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