The Heisenberg Uncertainty Principle is a key idea in quantum mechanics that explains why a scientist cannot calculate many quantum variables at the same time.
It states that the more precisely a particle's momentum (or velocity) is determined, the less precisely it may be known about its location, and vice versa.
The Heisenberg uncertainty principle is a law in quantum physics that limits the precision with which two related variables can be calculated.
Hence, Heisenberg's uncertainty principle is true.