Fact about Lowest Temperature and Time limit.

Описание: Lowest Temperature in Physics: Absolute Zero

Definition: The theoretical lowest temperature possible, where the particles in a substance have minimum possible motion (zero-point energy).

Value:
0 Kelvin (K) = -273.15°C = -459.67°F

Why It’s the Lowest:
At absolute zero, a system has no thermal energy, and all classical motion stops. Quantum mechanically, some zero-point energy still exists, but no energy can be extracted from the system.

Achieved So Far:
Scientists at MIT in 2019 created a cloud of sodium-potassium (NaK) molecules at around 500 nanokelvin (nK) — that’s 0.0000005 K above absolute zero.



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Lowest Time Limit in Physics: Planck Time

Definition: The shortest meaningful interval of time, below which the laws of physics (as currentlyio understood) cease to be applicable.

Value:
1 Planck time (tₚ) = ~5.39 × 10⁻⁴⁴ seconds

Why It’s the Limit:
Below this scale, quantum gravity effects dominate, and our current physical theories (like general relativity and quantum mechanics) break down. A theory of quantum gravity (like string theory or loop quantum gravity) is needed to describe what happens.

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