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Gravity

Galactic Rotation Curves Revisited: A Surprise For Dark Matter

Historically, galactic rotation curves have suggested that galaxies are surrounded by a vast amount of invisible matter, otherwise known as a dark matter halo. A few weeks ago, a team of astrophysicists published a result that completely contradicts…

The Physics of Football

Every year, the NFL makes rule changes that affect team strategy and game outcomes. Some of these rules are designed to maintain the safety of players, while others are designed to increase the competitiveness of the game. However, there is one aspect of…