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Why Is The Universe Out Of Balance?

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TRANSCRIÇÃO COMPLETA

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the laws of reality as we know them

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fundamentally rely on the principle

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of balance

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energy can neither be created nor

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destroyed

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what goes in

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must come out

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to the 17th century italian physician

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santorio santorio exploring this balance

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within the human body led to a

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decades-long period of

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self-experimentation

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for 30 years he weighed every liquid and

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solid that went into his body and every

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liquid and solid

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that came out

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he weighed his body before and after a

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variety of physical exertions

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day in

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day out

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matter in

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mata out

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confusingly for him his excretions

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failed to measure up to the mass of his

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food and drink it was as if a campfire

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had been burnt to ashes the wood used as

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fuel weighing far greater than the grey

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flecks left in its place

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but santorio believed the missing matter

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had to have gone somewhere it could not

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just

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cease to exist

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and by the end of the 18th century

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natural philosophers would definitively

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demonstrate santori's base assumption

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was true the total amount of mass before

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and after a chemical reaction was equal

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whether it was the human metabolism

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breaking down food into smaller

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molecular units of fats proteins and

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sugars or the woody fibers in a

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campfire's fuel releasing carbon dioxide

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and water as it burns

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each chemical equation is balanced an

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equal number of each kind of atom at the

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start of reaction and at the end they

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merely rearrange themselves into new

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substances

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but the very light of day showed us this

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kind of balance is not always true

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in the 20th century when scientists

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unlocked the nuclear power of the atom

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it was revealed that the total amount of

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mass could indeed change

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deep within the core of our sun hydrogen

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becomes helium but the total mass

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involved in creating this helium is

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greater than the mass of the helium

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itself and no other matter exists on the

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end side of the equation

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it appeared

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unbalanced

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but her famous equivalents put forth by

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a young swiss patent clerk showed that

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mass only needed to be reconsidered as

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part of the total energy of a system the

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difference in mass is converted into

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energy a photon

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sunshine

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balance restored

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but

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what would happen

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if there were

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an inherent imbalance

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to the universe

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our bodies

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our world

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entire galaxies billions of light years

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beyond the milky way nearly everything

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we can reach out and touch consists

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of matter

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however there is another kind of matter

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out there a near identical twin

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we call it antimatter and there is

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almost none of it left

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an obvious enormous imbalance stretching

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out across the cosmos

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yet without this imbalance

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we would not

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and could not

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exist

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at all not a single person not a single

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planet

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not a single star

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where did this imbalance

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come from

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how is the observable universe packed so

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densely with mata with its partner

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almost entirely absent

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and why did the vast cosmos seem so

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perfectly balanced at its inception

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yet just not

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quite

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[Music]

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the most famous relationship in all of

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physics is often cited to be the one

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between mass

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and energy

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e equals m c

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squared c is representative of the

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ultimate speed limit for anything

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traveling through space and equal to

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that of light if it is travelling

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unencumbered through pure nothingness

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as simple as it appears to be this

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equation provided a fundamental basis

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upon which einstein's laws of relativity

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could stand

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in the early years of the 20th century

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the world was being ushered into a new

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understanding of reality where strange

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things happened at speeds and scales

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unfathomable to the human mind albert

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einstein was merely one of many

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brilliant minds revealing how the

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extremities of our universe defied

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common perception

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and so just a few years before einstein

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rewrote the laws of nature paul durack

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was born in bristol

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first a student of engineering he

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transitioned into mathematics earning a

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phd from cambridge in 1926.

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incredibly precise both in thought and

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word tales of him sleeping during

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lectures would end with his waking to

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offer a quick and clever retort to the

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speaker his advice to fellow physicist

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niels bohr known for his plentiful

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drafts of papers was that

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you should never start a sentence

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without knowing the end of it

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[Music]

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and from his postgraduate years and

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beyond dirac's research obsession lay in

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a brand new area of physics

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in 1925 quantum mechanics had rewritten

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our perspective of the subatomic world

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particles though the only ones known at

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the time with a proton and electron

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could simultaneously exist and be

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described mathematically

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as waves

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by 1926 erwin schrodinger had published

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his keystone equation from quantum

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reality but dirac noticed it was

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incomplete

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it didn't account for the effects of

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einstein's relativity

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someone needed to tackle this problem

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diving into the math direct soon

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discovered an incredible secret hiding

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within the relationship between energy

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and mass

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e

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equals m c squared

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was wrong

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or rather like schrodinger's quantum

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model it was incomplete

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merely reflective of one specific

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situation when a massive particle is not

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moving relative to its observer this

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difference is only significant at

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extreme speeds yet these speeds are

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reached at the imperceptibly tiny scales

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of electrons orbiting their atomic

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