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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Undergrad
Why are Some Constants Dimensionless?
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Undergrad
Capillary Action and Paper Towel Physics
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Undergrad
Relative Density of metal powder
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High School
Why Can't We Hear: Sound Traveling in Solids
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High School
Theory of Energy Output: An Overview
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High School
Which is denser: a rhino or a rock?
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High School
Interesting topics about physics for teens?
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Undergrad
How Did Mighty Atom's Hair Defy Physics?
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High School
Cutting metal pipe to make different pitches
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Undergrad
Bragg's Law: Find Equation 2dsinθ=nλ
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High School
Unity means just plain regular 1 ?
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High School
How long does an explosion's boom last?
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High School
Why is asking 'why' in physics frowned upon?
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High School
How Do You Write a Physics Formula?
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High School
Mysterious Glass Shatter: What Caused It?
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High School
How to round off percentage uncertainties?
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High School
Solving E=mc^2: What Units to Use?
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Undergrad
How to distinguish left vs right
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Graduate
How Does a Clock Measure Time?
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High School
Why are ice cubes grey in the middle?
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High School
What's wrong with this wind turbine concept?
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High School
Recommend some great physics books?
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Undergrad
Try to make a vapor fuel supply system
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Undergrad
Don't understand the taylor expansion?
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Undergrad
Signal integration over ns time period
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Undergrad
Geometry, logic and sun angles: help
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Graduate
Picking an appropriate distribution
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