String theory found its origins in an attempt to understand the nascent experiments revealing the strong nuclear force. Eventually another theory, one based on particles called quarks and force ...

In this video, we explore the relationship between string theory and quantum field theory (QFT). QFT is a mathematical framework that describes nearly all particles and forces in the universe but ...

CHAPTERS 0:00 What we see vs. possible hidden reality 2:06 What is a dimension? 3:22 Isn't time a dimension? 5:20 The strange world of the 4th dimension 6:54 Does physics allow extra dimensions? 7:23 ...

(via PBS Space Time) Can adding every positive whole number really give you -1/12? We explore how physicists extract meaningful finite values from infinite sums, and how this strange mathematical ...

Scientists are on the trail of a mysterious five-particle structure that could challenge one of the biggest theories in physics: string theory. This rare particle—never seen before and predicted not ...