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Curated Video
The Fine-Structure Constant: A Number That Shaped the Universe
This constant represented by the Greek letter alpha is just a dimensionless number, so no matter what units you use, it will always have the same value, about 1/137. If it was different by just 4%, life may not...
Curated Video
How Fundamental Constants Define the Limits of Physics: The Planck Scale
How the Planck scale is derived from the most important fundamental constants in physics. This is where our physics ends. If you wanted to simulate the universe in a computer, you would need to enter...
Science Friday Initiative
Science Friday: Pondering the Possibility of Non Constant "Constants"
New research indicates that a value thought to be a basic foundation of physics might vary from place to place in the universe.