Nova (1974–…): Season 42, Episode 4 - Colosseum: Roman Death Trap - full transcript
The Colosseum is a monument to Roman imperial power and cruelty. Its graceful lines and harmonious proportions concealed a highly efficient design and advanced construction methods that made hundreds of arches out of 100,000 tons of stone. In its elliptical arena, tens of thousands of gladiators, slaves, prisoners and wild animals met their deaths. Ancient texts report lions and elephants emerging from beneath the floor, as if by magic, to ravage gladiators and people condemned to death. Then, just as quickly, the Colosseum could be flooded with so much water that ships could engage in sea battles. Could these legends be true? Now, with access to one of the world's most protected world heritage sites, archaeologists and engineers team up to re-create ancient Roman techniques to build a 25-foot lifting machine and trap-door system capable of releasing a wolf into the Colosseum's arena for the first time in 1,500 years.
summed up in stone
Never has such a civilized
culture
poured so much of its wealth
into engineering
spectacles of death
for the entertainment
of its people
In the morning you had
wild beast shows
At around the lunchtime,
crucifixions
In the afternoon,
the pièce de la résistance,
two men, fighting to the death
Ancient Roman accounts document
the Colosseum's repertoire
in chilling detail
They depict an orgy of
outrageous spectacles...
Costumed gladiators cast in
battles to the death,
exotic animals unleashed
on unsuspecting victims,
even sea battles with thousands
of people killed
Were the Romans as bloodthirsty
in their theatrics
as ancient authors report?
To investigate, a subterranean
archaeologist explores
tunnels beneath the Colosseum
to discover how it could be
flooded for naval battles
A forensic scientist gives voice
to gladiators
whose battle-bruised bones bear
witness to their own deaths
We had in our hands
for the first time
remains of real gladiators
And an architect pieces together
clues of an elaborate system
of ancient special effects
machines
Then, with a team of engineers
and builders,
they reconstruct it,
and for the first time in
1,500 years release an animal
into the Colosseum
Now, can scientists and scholars
unlock the secrets
of how and why
the Romans engineered
such bloody spectacles?
Right now on NOVA, "The
Colosseum: Roman Death Trap"
If one building best symbolizes
the gore, glory
and genius of the Romans,
it is the Colosseum
It is a spectacle of design
and engineering,
the biggest building
they ever constructed
It spans nearly 2,000 feet
around,
soars over 160 feet high,
and soon after it opened in
the year 80, it was decorated
in gleaming bronze shields
and 16-foot statues
of gods and heroes
To this day, the Colosseum
stands as a powerful landmark
on the skyline of Rome
When the Colosseum was built,
it had an enormous effect
because of its size, status
and presence in Rome
The echo of its 50,000
spectators
cheering bloody theatrics
continues to haunt imaginations
Gladiators fighting to
the death, mass crucifixions,
elaborate animal hunts
Over four centuries,
the Colosseum was witness
to an estimated
million human deaths
And with up to 11,000 animals
killed in a season,
some species,
like the Balkan lion
and a North African elephant,
were driven to extinction
Yet the Colosseum was much more
than a spectacular
slaughterhouse
It was a carefully engineered
entertainment complex
designed to reinforce
Roman world order
Watching fighting
on a regular basis
for entertainment
gave the Romans a sense of who
they were and infused them
with a kind of military ethos
that was instrumental
in creating and maintaining
the empire
Ancient Roman authors,
such as Martial
in his Book of Spectacles,
describe how that world order
played out on the arena's stage
They cast the emperor
as master illusionist
On his command a menagerie of
ostriches, crocodiles, rhinos,
bears and tigers
magically appear
to be dispatched by hunters
A condemned criminal
is dressed in wings
and catapulted across the arena
to play out a Greek myth
And fantastical sea battles
take place
where thousands of prisoners
of war are either slaughtered
or drowned
Can these astonishing accounts
of elaborate executions be true?
Or has the boundary
between history and myth
been blurred over time?
Most recently the Colosseum
was brought back to life
in the film Gladiator,
where tigers spring
from out of nowhere
to maul Russell Crowe
But that's Hollywood effects
The Romans were doing it
for real
Parts of the movie Gladiator
are based on events portrayed
in ancient texts and mosaics
They depict gladiators locked
in combat
and wild beasts mauling people
But none of these accounts
describe
how the Romans made these
animals magically appear
Some scholars suspect the secret
may be hidden
in the Colosseum's basement
The hypogeum, the Greek word
for "underground,"
is a maze of corridors
and collapsed walls
Architect Heinz Beste thinks
that here,
hidden from the spectators
above,
is where the Romans engineered
their murderous magic
We have to imagine
this being covered
by the wooden arena floor above
It was dark down here, lit only
by torches and small lamps
Today, the arena floor has been
partially rebuilt for tourists
The original was made of wood
and covered in sand
to absorb blood
The floor and all its wooden
supports are long gone,
but etched into the walls
of the hypogeum
Beste finds deep cuts
and grooves
To decipher
these fossil-like remains,
he drew every stone
on every wall
After more than two years,
he began to make sense
of the mysterious markings
Through these drawings
it was possible
to connect these clues
and turn the whole puzzle
into a system
that can be explained
Here he finds impressions made
by wooden beams
And evenly spaced along
the floor are a series
of round holes in concrete
Here is another piece
of the puzzle
This is a base for a capstan
A capstan is a large round pole
that could be turned by workers
to lift something
Ah, interesting
Up here we see an indentation
for a ramp
Another mark reveals where
a ramp might have led
to the arena
In Beste's mind, the pieces
come together
Support framing from the floor
of the hypogeum
to the floor of the arena
Halfway up, a horizontal beam
for workers to stand on
A capstan with poles
for workers to turn
A channel where a cage could fit
And finally, a trap door that
could lower to become a ramp
leading to the arena floor
Together they form
what could be a device
to lift and release animals
I believe, given the evidence,
there must have been an ancient
lift system here
Throughout the hypogeum,
Beste finds evidence
of ancient backstage machinery,
a total of 28 lifts
Has Heinz Beste discovered
the secret
to how the Romans made wild
animals magically appear
in the arena?
To find out,
he wants to construct
a lift and trap door system...
Install it right here
in the Colosseum
and raise an animal into
the most famous amphitheater
on earth
But why did the Romans
build the Colosseum
to stage these bloody
spectacles?
Part of the answer is hiding
in plain sight
For years, a cast aside stone
was used as a place
for visitors to rest, its
importance completely unnoticed
In the 1800s, an inscription
was discovered on its surface
It ended up here
in the Colosseum museum,
where it became, once again,
largely unnoticed
But hidden beneath these 5th
century letters may be another,
much earlier inscription
Rosella Rea is director
of the Colosseum
and one of the leading experts
on the building
Mixed within
the engraved letters
she sees a series
of strange holes
You can see with the naked eye
that the holes are arranged
in a regular pattern
By studying their layout,
it was found that the holes form
a series of letters
The holes are where bronze
letters had once been fastened
to the stone
This was the hole
for the first letter
The letter "I" for "imperator"
Or "emperor"
Connecting all the dots reveals
the original inscription
The Emperor Vespasian ordered
this new amphitheater
to be constructed from the booty
Vespasian Flavius becomes
emperor in the year 69
The following year he orders
construction of the Colosseum
to begin
The stone is the plaque
from its dedication
And the letters spell out how
the Colosseum was paid for,
with booty
But booty from where?
Vespasian's son left a clue
on the nearby Arch of Titus
On it, Katherine Welch finds
depictions
of Romans sacking
the Temple in Jerusalem
One of the panels depicts
the menorah, the Torah,
and the sacred table,
carried by elite young Roman men
This is quintessential
war booty,
the things that meant the most
to the people from whom
they were seized
Following his son's conquest
of Judea in the year 70,
Vespasian is rich
with gold and slaves
He can build anything he wants
So why the Colosseum?
Vespasian needs a building
that makes a bold statement...
That he, Vespasian Flavius,
is nothing like the emperor
before him, the infamous Nero
Emperor Nero's rule is marked
by extravagance
and much of Rome burning
He confiscates land and builds
a pleasure palace
with gardens and a manmade lake
Nero is driven from the throne,
commits suicide,
and Rome is engulfed
in civil war
After a ghastly year of civil
war and the suicide of Nero,
Vespasian did everything
in his living power
to ingratiate himself
with the Senate
and consolidate
his personal power
After fighting his way to the
throne, Vespasian casts himself
as the anti-Nero
He buries Nero's palace,
fills in his lake
and on top builds the opposite
of a pleasure garden...
A public building
for blood sports
In building the largest, most
expensive building in Rome,
a building for popular
entertainment,
it celebrated military power
and put it into a frightening,
exciting, chastening context
The Colosseum is the perfect
symbol for how Vespasian
and Rome came to power
And to enhance the blood sports,
Vespasian builds in
some deadly surprises, releasing
wild animals into the arena
But reconstructing the lift
that could have done this
is an audacious plan
If Heinz Beste is to succeed,
he'll need to find
an ally on the inside
Umberto Baruffaldi is
an engineer, inventor
and GoPro enthusiast
He too is captivated by how
the Romans released wild animals
into the arena
Umberto also happens to be
director of health and safety
for the Colosseum
Beste shares his drawings
with Umberto
The drawing is beautiful,
but how are we going
to make it work?
Beste's drawings provide
a skeleton of the system,
but it's not clear how the lift
actually works
Umberto brings in structural
engineer Giovanni Squillacioti
and material engineer
Flavia Campanelli
We have to create a system
of pulleys and counterweights
that works perfectly
and synchronizes
Giovanni translates Beste's
two-dimensional drawing
into a three-dimensional
computer model
The trap door is one
of the big challenges
On one hand it has to open
to release the animal
into the arena
But when it's closed,
it has to support the weight
of gladiators, charioteers
and heavy animals trampling
on it above
Giovanni puts the pieces
together and connects them
in his computer model with
pulleys, ropes and hinges
Perfecto.
Then, based on Giovanni's
3D wizardry,
Heinz and Umberto build
a scale model
At the heart of the system is
the capstan,
a large central pole
As this is turned,
it wraps a rope around it
The animal is placed
in this cage
It's connected to the capstan
through a series of pulleys,
so as the capstan is turned,
the cage rises
Two large hinged arms support
the trap door when it's closed,
and then swing down to open it
As the cage rises,
the door automatically opens,
releasing the animal
onto the ramp
The model is essential to
experimental work of any kind,
because it is the model that
allows you to understand
all the mechanics
And building the lift
and trap door system
will provide a window into
a uniquely Roman pastime,
in a uniquely Roman building,
the amphitheater
Mark Wilson Jones is an
architect with an expertise
in Greek and Roman buildings
He's here in Arles
in southern France,
at an amphitheater constructed
about 20 years
after the Colosseum
In general, the Romans took
their building forms
from the Greeks
But this is not the case
for the amphitheater
The amphitheater was a definite
Roman invention
And they created it for
the special circumstances
of gladiatorial fights
Amphi means "double" in Greek,
and amphitheater translates
as "double theater"
But if a Greek theater were just
doubled, it would be round
The Roman amphitheater is
actually a stretched circle,
or an oval
Wilson Jones believes
the Romans' innovation
of the oval shape may be
a direct result
of the building's function...
A place for gladiator combat
Most buildings are rectangular
And that's a bad thing
because you can get action stuck
in the corner
If a gladiator gets stuck in a
corner, he gets killed quickly
The oval shape helps
prolong the action
for maximum entertainment value
So this shape has
a dynamic quality, no corners
Everything's smooth
So the action can move around
And I think that really helps it
maintain its excitement
An amphitheater for gladiator
combat is uniquely Roman
in form and function...
Exactly the symbol
Emperor Vespasian needs
to project his power
and inspire Roman pride
There's this strong connection
between the unique shape
of the amphitheater and
gladiatorial performances,
the link with the military,
the conquest of empire
The great crowds of 50,000 that
came together in the Colosseum
were celebrating all of that
It's really a sort of great day
out to feel a Roman citizen
and feel at the center
of the world
In a forest northeast of Rome,
Umberto is in search
of the perfect tree
for making the lift
The tree will be used for one
of the key parts of the lift,
the capstan
To fell the tree, the team
uses the same tools
as the ancient Romans: the ax,
the two-man saw and a wedge
Carmelo Malacrino, an expert
on ancient Roman building,
knows what tools to use from
images on the Trajan Column,
erected just 30 years after
the opening of the Colosseum
This column shows a fantastic
series of tree cutting
It depicts the deforestation
process
for constructing new roads and
the creation of campsites
as part of a military campaign
After an hour of chopping
and sawing,
the tree comes crashing down
Now, the tree begins its
transformation into the capstan
But Umberto leaves a little bark
as a reminder of where
it came from
The team uses
their scale model as a guide
for building the lift
The move from the model
to the real thing
was a little traumatic
Working in a dimension
four times bigger
really amplifies the problems
The cage itself will weigh
over 800 pounds
It needs to be strong to keep
wild animals inside
We have to pay attention
to the sturdiness of the cage
since it's supposed to hold
lions and tigers
Seeing the lift at full scale,
Umberto starts to have
some concerns
The most difficult part will be
getting the lift in
without touching the Colosseum
Because if we damage
the Colosseum,
I'll be chased
out of the Colosseum
Today, the Colosseum is
a majestic ruin
Over the centuries,
everything of value was stripped
from its walls
But coins minted for its opening
and carvings on tombs
show how the Colosseum was
likely decorated
In its arches stood 160 bronze
statues 16 feet tall,
representing gods and heroes
the Romans borrow
from the Greek pantheon
At its top layer were
gleaming bronze discs
symbolizing captured shields
Finally, framing the arches
were columns of various
architectural orders:
Greek capitals on the upper
three layers,
but on the street level
are Roman capitals
Vespasian is giving the people,
the plebs Romana,
exactly what they want...
Greek orders, Greek statues,
but all with a Roman twist
and pressed into the service
of the conquering Roman state
The Colosseum's decorations
amplify the message
of the building's
monumental scale:
We Romans love
Greek art and culture,
but we have surpassed them
Rome is the new superpower
As a final touch,
there was a bronze chariot above
the entry arch
on the north side,
where the emperor could make
his grand entrance
But Vespasian will never walk
beneath it
He dies just months before
the Colosseum is completed
He does leave a lasting legacy
though:
the largest building in Rome
and an imperial dynasty
For the first time
in Roman history,
an emperor is directly succeeded
by his natural son
In the year 80, Titus holds
the inaugural games
in honor of his father
Roman author Martial
in his "Liber Spectaculorum"...
The Book of Spectacles...
Describes the inaugural games
A hundred days of crucifixions,
wild beast shows,
gladiator combat
and, for the first time,
the acting out of Greek myths
with elaborate scenery
and actual death
What happened with the
inauguration of the Colosseum
is that these Greek
mythological executions
entered the arena repertoire
Except in the theater
they were bloodless,
they were just actors
In the amphitheater they were
condemned criminals
who were forced to dress up
as Greek mythological characters
and killed in the Colosseum
The Romans would reenact
well-known Greek myths,
such as Icarus flying too close
to the sun and falling to earth
But in the Colosseum, there was
a gruesome twist
The criminal playing Icarus
would be catapulted
across the arena to his death
This is not a myth
It's real
Martial goes on to describe
a mass execution
so cruelly choreographed it
surpasses even Roman standards
Naumachiae... mock sea battles
where ships are sunk
with hundreds of prisoners
on board
What astonishes Martial is not
the mass murder by drowning,
but rather how it was pulled off
How could the Colosseum be
flooded for sea battles
in the morning, then drained
quickly enough
for gladiator combat
in the afternoon?
The Romans were masters
of moving water
A network of 11 aqueducts
carried clean water to Rome
from mountain springs,
some over 50 miles away
The aqueducts provide the means
to get water into the Colosseum
And new discoveries are
revealing a system
to get water out
Adriano Morabito, director
of Subterranean Rome,
has spent ten years mapping the
city's underground water system
One day while surveying
for a new metro line,
he took an unexpected turn
We were mapping all the sewage
system and suddenly we went
into an older drainage system
and we saw light at the end
To his great surprise, the light
at the end of the tunnel
was the Colosseum
Morabito had stumbled into an
ancient drain or "collector"
This is the only collector
still working today
In ancient times we had all
four collectors getting rid
of the water out of the monument
Beneath the arena, Morabito
finds evidence of four drains
that emptied water
from the Colosseum
And climbing to the top
of the hypogeum,
Morabito finds 40 channels
that may have fed water in
Some archaeologists speculate
that this could have been used
to flood the arena
Morabito believes
the 40 input channels
and four drains
provide the plumbing
to stage naval battles
To put his theory to the test,
he investigates how much water
the Romans would need
to flood the arena
He finds four passageways
leading into the hypogeum,
wide enough to launch
flat-bottomed boats
into the arena
When the arena was flooded
the water was coming in here
and then the boats were starting
floating up to this level,
because otherwise the water
would have gone
into other rooms
Morabito reasons the water could
have been no higher
than about five feet or it would
spill over
into other areas
of the Colosseum
Multiplying that depth
by the area of the arena,
he calculates, with
the floor removed it can hold
a million and a quarter
gallons of water,
equal to about two Olympic
swimming pools
But can the drains empty
that much water fast enough
to stage sea battles
and gladiator fights
all in one day, as author
Martial describes?
One night a thunderstorm puts
Morabito's theory
and the surviving drain
to the test
The storm dumps 800,000 gallons
of water into the Colosseum,
filling the hypogeum halfway
That rainwater,
with just one drain,
empties in under two hours
Morabito calculates that with
all four drains working,
the Colosseum could be emptied
in less than an hour
It was therefore
technically possible
for the emperor's engineers
to flood the arena
for its opening games
Morabito believes the Romans had
the plumbing and enough water
to stage mock sea battles
in the Colosseum,
just as the ancient texts claim
But could they really lift
animals into the arena?
After months of constructing
the lift and trap door system
in the workshop outside of Rome,
today the pieces finally arrive
The 440-pound trap door,
the 2,000-pound frame
and nearly 1,000-pound cage
And the capstan,
weighing in at 500 pounds
Originally the pieces were built
right into the walls
of the hypogeum
But today those fragile walls
are a part of a protected
World Heritage site
that can't be altered
So their idea is to pre-assemble
the lift outside the Colosseum
and then drop it into place as
one self-contained unit
Assembling the lift is a tricky
process,
almost as tricky as the design
It's big and bulky
And then lowering
into the Colosseum
is the most difficult part
Umberto has hired
a 200-foot crane
for this delicate operation
Giovanni Cirillo is
behind the controls
The only issue today is the wind
And the later it gets in the
afternoon the windier it gets
That might shake the structure
and make my job less exact
After hours of assembling,
the team is finally ready
to raise the lift
The crane hauls the machine to a
standing position, and then
stops
There's a problem
The crane has a built-in scale,
and Cirillo discovers
the lift is too heavy
The load is 600 kilos overweight
Over this distance
that's a problem
The crane has the power
to raise the lift,
but when its arm extends
out over the Colosseum,
too much weight could cause
the crane to tip over
We don't know if we can get
the lift inside
The main issue is the crane
might topple over
The team does some quick math
to try to save the project
According to our calculations,
the cage weighs around 450 kilos
Once we take that away, the load
will be lighter for the crane
They remove the cage, but
they're still 150 kilos...
Or about 300 pounds... over
Umberto confers with Cirillo
and takes a calculated risk
He green-lights the raising
of the lift
The crane hauls the lift up,
nearly 200 feet and over
the walls of the Colosseum
Umberto holds his breath as
the crane's arm stretches out
over the hypogeum
This shifts the crane's center
of gravity
If the lift is still too heavy,
the crane could topple over,
crashing into the Colosseum
and smashing the lift
into the hypogeum
To make it even more
challenging,
Cirillo has to maneuver the lift
without even being able
to see it,
guided only by radio contact
Rosella Rea, director
of the Colosseum
and perhaps the person with the
most riding on the success
or failure of the lift project,
arrives at the critical moment,
as the team steers the lift
between the narrow, fragile
walls of the hypogeum
with almost no wiggle room
To everyone's immense relief,
the lift slides in perfectly
After flying the three-ton lift
into place,
the half-ton cage is a breeze
Well, when you look at it as a
drawing, when you imagine it
in your mind's eye, or when you
write about it,
that's one thing
But then to see it full scale,
and to really be able to touch
it, that's a whole other thing
It's really amazing, and for me
it's especially fantastic
With the lift in place,
the team pops the Prosecco
But they may be celebrating
too soon
They still have to turn
all these parts
into a working machine
But why did the ancient Romans
go to such lengths
to make death theatrical?
Some answers are coming
from the victims themselves,
or at least their bones
In 1993, Austrian archaeologists
uncovered a cemetery
in a Roman city
in what is today Turkey
Fabian Kanz of the Medical
University of Vienna
was brought in to analyze
the human remains
It was a mass grave
We found the remains
from 68 people
And 66 have been young males,
aged between 20 and 30
Unusual injuries offer a clue
to who was buried here
The distance is about
five centimeters
These holes in the head,
surely the cause of death,
were almost certainly the result
of a trident...
A weapon unique
to gladiator combat
The Roman author Suetonius
describes seven gladiator
characters,
each with different costumes
and weapons
One of the most famous pairings
is a Secutor,
equipped with a short sword,
shield and helmet;
and a Retiarius,
"the fisherman,"
who fought with a net
and trident
From the forensic evidence, it's
obvious who won this battle
It was the first known
gladiator cemetery
We had in our hands
for the first time
remains of real gladiators
Among many of the gladiator
bones, Kanz finds something
even more remarkable...
Evidence of healing
What was quite surprising for us
was the high number
of well-healed injuries,
which indicates there must be
excellent health care
for these gladiators
Ancient Roman texts offer a clue
to one possible treatment,
a special potion made from ash
And this might have been leaving
traces in the bones
To find out if there's any truth
to this gladiator potion,
Kanz grinds a bone sample
into a powder
and processes it into a liquid
that he puts into an instrument
called an emission spectrometer
Here he sprays the liquid
into an argon gas torch,
where it burns with
a distinctive flame
The color of the flame changes,
depending on the elements
in the liquid
And therefore, we can find out
about the mineral composition
of the bone
The flame turns from blue
to a bright yellow,
indicating that the gladiator
bone has a high concentration
of strontium
Strontium is a natural element
with properties similar
to calcium,
a crucial mineral for building
strong bones
It was mentioned
in the historic texts
that a kind of ash drink was
substituted to the gladiators
to remedy their pain
after fighting
And this would perfectly fit
to explain this high strontium
content of the gladiators
Kanz believes gladiators were
given the Roman equivalent
of calcium supplements
to strengthen their bones
But why go to this trouble
to save gladiators?
Although slaves,
gladiators were trained
in special fight schools
The remains of one,
the Ludis Magnus,
are right in the shadow
of the Colosseum
The gladiators have been
a big investment
for the owner
of the gladiator school,
comparable to modern football
or soccer teams
And they wanted to save
their investment
And therefore, they engaged
the best available doctors
at the time
It would have been
extremely expensive
if half the gladiators were
killed at every event
To protect their investment,
the Romans began to provide
gladiators with medical care,
so they could live to fight
another battle
And perhaps to compensate
the audience for a reduction
in the number of deaths,
the emperor added
entertainment value
by ordering
more elaborate stagecraft
Now, all the major parts
of the lift are in place:
the cage, capstan and trap door
Now that it's in place,
we have to make it work
The first task is installing
all the missing pieces
They place wheels on the cage
handles on the capstan
and above the capstan,
Umberto and Tullio install
a spool for rope
We attach this rope here
and as it turns,
the rope wraps around it
and pulls the cage up
The team connects the capstan
to the cage with enough rope
to stretch the length of two
football fields
Their earlier model is starting
to feel very small indeed
We only tested the model
That was just 50 kilograms
The real thing is 3,200
kilograms
So that's why things
are a bit tense here
With everything strung up,
Umberto gives the lift
a trial run
He tries to turn the capstan
without success
The cage goes nowhere
Three of us tried to lift it,
but it didn't budge
Not a bit
It looked like an elephant
Impossible to move
Umberto calls in reinforcements
Even with six people,
they can't turn the capstan
to lift the cage
or move the trap door
It's all too heavy
The ramp is very heavy
and the lever system we
initially designed
does not work
How did the ancient Romans
manage to lift so much weight?
We are facing the same
challenges that the Romans had
when they were originally
making it
The size is the same, the
mechanisms are the same,
and the problem is just as big
Umberto searches for a solution
in an unexpected place:
Roman ships
Could the same mechanics that
hoisted the heavy sails
be used to lift the cage?
Umberto's hard drives are filled
with images he's collected
of surviving pieces
of Roman ships
Among them he finds what may be
the key to heavy lifting,
a simple device that dates far
back in antiquity... the pulley
The cage weighs 800 pounds
Adding a pulley splits
the weight evenly
between the two sides
of the rope
Another pulley changes
the direction of the force
It's easier to pull down than up
With one pulley attached to the
cage, it feels half the weight,
only 400 pounds
Attaching two pulleys
on the cage makes it feel
like only 200 pounds
The more pulleys you add,
the more the weight is
distributed between them
and the less force you need
to lift the cage
The more I worked on this,
the more I realized
how great the Romans were, and
how small we are in comparison
Building the lift, I realized
I was learning from them
Learning directly
from the ancient Romans
The team adds pulleys
to redistribute the weight
of the cage and trap door
Umberto gathers eight men
As they push the capstan,
the rope glides through
a network of 12 pulleys
And the cage lifts up
off the ground
The fascinating part is seeing
this mechanism,
which at first was essentially
a static,
seemingly simple structure,
turn into something dynamic,
a machine,
simply by using these ropes,
pulleys and human strength
But can this machine perform
the Colosseum's signature
magic trick?
To find out, the team wants
to release an animal
into the world's most famous
amphitheater
for the first time
in 1,500 years
But which animal?
According to legend, Romulus and
Remus, the founders of Rome,
were suckled by a wolf
So a wolf is the perfect animal
to test the lift
Paolo Caldora rescues wolves
taken as pets
and then illegally abandoned
He leads a wolf through
the labyrinth of the hypogeum
In ancient times,
wild beasts would have been
carried in already in cages
The cage door is lowered,
and the men turn the capstan
to raise the wolf
Every part is now working
as a synchronized machine
The trap door is lowered
The cage rises into place,
its door opens,
and the wolf emerges
into the arena
The days of wild beasts
in the Colosseum
as hunters or hunted
are thankfully long gone,
and the wolf runs safely
to his rescuer
Heinz, Umberto and their team
have not only re-created
an ancient Roman lift machine,
they have created a time machine
For a brief moment, raising
the wolf opens a window
onto the spectacles here in
the Colosseum 2,000 years ago
Imagine not just one lift here,
but a whole row of them,
one behind the other
The corridor was packed
with lifts,
which produced the spectacular
action above
Now, with the full-scale lift
we can begin to get a sense
of just how magnificent the
stagecraft must have been
It's really fantastic
Each year, over five million
tourists visit the Colosseum
They are awed by its size
and horrified
imagining the slaughter
How could a culture
as advanced as Rome
justify the spectacular
bloodshed that took place here?
Gladiatorial games and
associated violent spectacles
needed absolutely
no justification
And in the ancient sources,
we find just the opposite,
that they were believed
to stiffen moral fiber
Romans attending the Colosseum
were more than spectators,
they were participants
These games showcased the power
of Rome and reminded citizens
that their prosperity
was paid for in blood
Inside the Colosseum you have
spectacle, you have energy,
you have entertainment
The whole building is used as
a vehicle for the demonstration
of the power of the Roman world
and how it came to benefit
the populace
Though Rome falls
to the barbarians in 476,
the Colosseum, like a victorious
gladiator, still stands
Battered and triumphant,
it is a lasting reminder of
the gore and the glory of Rome