by Spark
March 20, 2018

from YouTube Website








Full Astrophysics Documentary...



Professor Jim Al-Khalili traces the story of arguably the most important, accurate and yet perplexing scientific theory ever:

Quantum Physics...

The story of quantum physics starts at the beginning of the 20th century with scientists trying to better understand how light bulbs work.


This simple question soon led scientists deep into the hidden workings of matter, into the sub-atomic building blocks of the world around us.


Here they discovered phenomena unlike any encountered before - a realm where things can be in many places at once, where chance and probability call the shots and where reality appears to only truly exist when we observe it.

Albert Einstein hated the idea that nature, at its most fundamental level, is governed by chance.


Jim reveals how in the 1930's, Einstein thought he'd found a fatal flaw in quantum physics. This was not taken seriously until it was tested in the 1960s.


Professor Al-Khalili repeats this critical experiment, posing the question:

Does reality really exist, or do we conjure it into existence by the act of observation?

Elsewhere, we explore how the most famous law of quantum physics - The Uncertainty Principle - is obeyed by plants and trees as they capture sunlight during the vital process of photosynthesis.


Could quantum mechanics explain the greatest mystery in biology: evolution?





Einstein's Nightmare

The true nature of the smallest elements that make up our universe - the atoms, photons and electrons - has long mystified and tormented our greatest scientists.


Are they ruled by order or by mere chance? The answer could reshape our perception of reality.


This field of science is known as quantum mechanics, and it was major point of debate between acclaimed scientists Albert Einstein and Niels Bohr.


In the probing documentary 'Einstein's Nightmare', theoretical physicist and author Professor Jim Al-Khalili attempts to settle their dispute once and for all.

At the heart of the debate is the question as to whether reality as we know it exists when we're not observing it. Bohr believed that the smallest matter consists only of probabilities and contradictions, and its true reality cannot be fully known or measured.


As a devotee of definitive statistical science, Einstein argued otherwise. The notion that nature was merely a game of chance ran counter to Einstein's core beliefs.


Adding fuel to the fire of their debate, Bohr's ideas also contradicted Einstein's groundbreaking theory of relativity because it speculated that these unpredictable sub-atomic particles could move faster than the speed of light.

This debate has raged on in the many decades since Einstein and Bohr made their professional disagreements public.


Professor Al-Khalili sets out to resolve this quandary definitively.


As his jumping-off point, he calls upon two key ideas related to quantum mechanics - the EPR paradox and Bell's inequality - to properly produce his findings.

His tests involve deep dives into light, color and temperature. He uses coins, cards and other props to illustrate specific lessons.


Viewers will be anxious to learn which side of the debate Al-Khalili falls upon in the end, even if they continue to find the concept of quantum mechanics generally confounding.

Unlike many other dense science-based documentaries, Einstein's Nightmare doesn't play like a boring classroom lecture; it has a real vision for unique and engaging settings.


It's an ambitious undertaking, and it does a masterful job of communicating complex scientific theory through a series of experiments that are easy to understand and fun to observe.