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.
- · Replies 12 ·
- · Replies 27 ·
Undergrad
Relationship between Mass and Energy
- · Replies 2 ·
Graduate
What is the Origin of this Equation?
- · Replies 2 ·
- · Replies 1 ·
- · Replies 6 ·
High School
Direction of Vectors: 30 degrees N or E
- · Replies 1 ·
- · Replies 6 ·
High School
Measuring wind in a vertical wind tunnel
- · Replies 8 ·
- · Replies 61 ·
- · Replies 11 ·
- · Replies 3 ·
- · Replies 1 ·
- · Replies 4 ·
- · Replies 5 ·
- · Replies 2 ·
- · Replies 13 ·
- · Replies 4 ·
- · Replies 1 ·
High School
You're in a room with 2 iron bars
- · Replies 4 ·
- · Replies 9 ·
- · Replies 61 ·
- · Replies 7 ·
- · Replies 4 ·
- · Replies 49 ·
- · Replies 8 ·
- · Replies 2 ·
- · Replies 5 ·
- · Replies 21 ·
- · Replies 6 ·
- · Replies 10 ·
- · Replies 1 ·
- · Replies 1 ·
- · Replies 1 ·
- · Replies 10 ·
- · Replies 4 ·
- · Replies 2 ·
- · Replies 2 ·
- · Replies 2 ·
- · Replies 12 ·
- · Replies 6 ·
- · Replies 15 ·
- · Replies 13 ·
- · Replies 12 ·
Undergrad
How to detremine the lifetime of a LED
- · Replies 10 ·
- · Replies 25 ·
- · Replies 23 ·
- · Replies 1 ·
- · Replies 37 ·
Undergrad
Why is There a Double Tidal Bulge?
- · Replies 2 ·
- · Replies 3 ·
- · Replies 11 ·
- · Replies 32 ·
High School
Is it Possible to Contaminate our Sun?
- · Replies 25 ·
- · Replies 13 ·
- · Replies 18 ·
High School
Vacuum cleaner with pc fan possible?
- · Replies 4 ·
- · Replies 8 ·
Graduate
Hemoglobin-Oxygen binding energy
- · Replies 4 ·
- · Replies 8 ·
- · Replies 11 ·
- · Replies 5 ·
- · Replies 4 ·
- · Replies 1 ·
High School
Hovercraft levitation - simple ideas needed
- · Replies 7 ·
Graduate
Is a Revolution in Physics Imminent?
- · Replies 57 ·
- · Replies 7 ·
- · Replies 1 ·
- · Replies 11 ·
- · Replies 1 ·
- · Replies 4 ·
- · Replies 1 ·
- · Replies 3 ·
Graduate
Ball Lightning Debunk, New Proposal
- · Replies 1 ·
- · Replies 7 ·
- · Replies 5 ·
- · Replies 24 ·
- · Replies 3 ·
- · Replies 17 ·
- · Replies 3 ·
- · Replies 7 ·
Undergrad
Laplace transform of step function
- · Replies 1 ·
Undergrad
Wind turbine, conceptual question
- · Replies 3 ·
Graduate
Waves, Energy, Blackbodies and Modes
- · Replies 3 ·
- · Replies 10 ·
- · Replies 1 ·
- · Replies 3 ·
- · Replies 1 ·
- · Replies 14 ·
- · Replies 13 ·
- · Replies 4 ·
High School
What is Energy? Is it Tangible or Physical?
- · Replies 9 ·
- · Replies 35 ·
- · Replies 8 ·