Heisenberg

Heisenberg's Uncertainty Principle is a fundamental concept in quantum mechanics stating that, at a very small scale like atoms, one cannot precisely determine both a particle's position and its momentum (speed and direction) at the same time. The more accurately you know its position, the less accurately you can know its momentum, and vice versa. This isn't due to measurement flaws but is an intrinsic property of particles, highlighting the limits of certainty in quantum physics. It emphasizes that particles behave both like tiny objects and waves, leading to a fundamental limit on our knowledge of their state.