Physics
Newton’s first law of motion says that particles move in straight lines unless influenced by a force but a new experiment shows that the quantum version of that assumption fails for quantum particles of light
By Karmela Padavic-Callaghan
Newton’s first law says that objects move at constant speeds until a force affects them
Shutterstock/Peshkova
An experiment with light shows that one of the fundamental laws of motion may not always hold in the quantum realm.
Much of our understanding of how objects like tennis balls or bicycles move stems from the laws of motion, which were formulated by Isaac Newton in the late 1600s. Newton’s first law states that objects naturally move at constant speeds and along straight lines unless they encounter a force that pushes them to do …
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