what if all clocks in the world stopped
no
time is set automatically by a program, but how does it know the exact time? time is set based on an internet connection.
people set up wristwatches before the
sale
but then how do these people know the
time
does anybody really know what time it is
hey there's a song there
anyway how do we determine this time and
what happens if all the clocks in the
world stop
wait a minute or longer
so welcome to the National physical
laboratory in Southwest London
here you can find some of the world's
most famous atomic clocks called
hydrogen mazers there are about 400 such
devices around the world and they help
the whole planet navigate through time
all modern Technologies satellites
operating systems GPS flight and train
schedules and the TV program on your
screen are Guided by the atomic clock
and here's how they work imagine a
pendulum it swings from one side to the
other one swing from left to right or
vice versa is a period of time equal to
one second
the pendulum is not very accurate since
it's not constant its movement may slow
down or accelerate
in atomic clocks atoms do the function
of a pendulum when they're exposed to
microwave radiation they begin to
fluctuate about 9 billion fluctuations
are equal to one second don't believe me
hey count them yourself the vibrations
of atoms are precise and unchangeable
these clocks are not lagging behind and
not accelerating
the error in such a clock can be one
second once every 10 million years now I
can't wait around that long so I'll take
my word for it
atomic clocks guide all modern
Technologies and communication
satellites and now let's imagine that
for some reason they stop working
atoms no longer react to microwaves
after them quartz watches and all
electronic ones stop
your phone no longer shows the time and
the arrival times of flights disappears
on the information board at the airport
at this moment all dispatchers contact
the pilots and ask them to land urgently
at the nearest airports further flights
become impossible
there are too many planes in the sky
if several start taking off and landing
at once at the same airport it can lead
to a disaster dispatchers wouldn't
create the correct schedule without
clocks
the same goes for all trains train
stations can no longer coordinate trips
and make switches on railway tracks this
system is too complex and can only work
with a precise time
the world is beginning to plunge into
complete chaos
the banking system is collapsing Brokers
don't transfer money to clients accounts
on time people can't get their salaries
on schedule
imagine you promised to send a
presentation to a client tomorrow at 2
pm and expect to get paid for it the
next day you don't know what time it is
and send the presentation to the client
two hours later
they don't get the file on time and the
deal falls apart
at large plants and factories the
schedule of the day gets down people
don't give out the necessary volume of
production imagine some Factory produces
two tons of processed Steel in exactly
eight hours
but the rhythm of work is disrupted and
this reduces the volume
next the steel should go to the ship
however the ship schedules are no longer
working either
and this applies to all materials in
general wood electrical carriers oil and
metals
logistic chains collapse because of the
stopping of the clot there's an economic
crisis and panic in the world
The Exchange closes and opens every day
at different times
shareholders and investors are losing a
lot of money
some say that the clock not the steam
engine was the most important mechanism
for the Industrial Revolution steam
engines powered cars and ships
but they couldn't synchronize the work
of many people
under such conditions you stop rushing
anywhere but so do all the other people
you can come to the supermarket and it
will be closed because its owner
overslept
but then when its doors open you'll find
that there are almost no Goods there
ships trains and trucks couldn't deliver
fruits Breads and vegetables because
they couldn't agree on the time
many will leave big cities as it'll be
challenging to live there without clocks
the age of high technology has ended
TV channels stopped working because some
employees were late and didn't start the
broadcast
the channel host came before the
operator but the sound engineer is still
sleeping because the alarm clock doesn't
know what time it is
to stop the chaos two things need to be
done the first is to accept that the
former high-tech life will no longer
exist
the second thing is to take an example
from our ancestors people live for
thousands of years without knowing the
exact time it has been necessary only
since the beginning of the Industrial
Revolution
before that people were Guided by the
Sun the roosters singing and the
internal biological clock
[Music]
for hundreds of thousands of years
humans used to go to bed at night and
wake up in the morning but with the
invention of the light bulb this order
was violated the industrial era forced
Humanity to focus not on the internal
clock but on the opening time of
factories and plans
then TV the internet and video games
were invented and the sleep mode
established by Evolution changed but in
a world without counting time people
will forget about alarm clocks again and
start improving their sleep
there will be a sundial in every house
the shadow will guide Humanity
hourglasses of various shapes and sizes
will be popular again in the world
sooner or later we will have returned to
some landmark in time as it was in the
past
[Music]
pimple in the 19th century people used
hundreds of different time standards
Railway schedules and buses determined
each of them
when the number of routes increased
people started sticking to the same time
that was sent in Greenwich UK
there was a big mechanical clock that
guided the whole country
Greenwich Mean Time or GMT Merchants
Factory directors and bankers adjusted
their watches according to GMT
when all UK trains were timed the GMT
signal was sent across the Atlantic via
an underwater cable straight to Harvard
in Massachusetts then at a special
conference in Washington DC more than 25
countries recognize Greenwich as the
international time standard
everything was fine the technology
worked synchronously worldwide but a
problem started after 10 years
scientists realized that the world
needed new clouds it turned out that the
Greenwich clock was inaccurate because
it was based on the time our planet
spent to make one spin around its axis
in the 20th century people learned that
Earth changed its rotation speed over
the years oh yeah it accelerates or
slows down because of the gravitational
influence of the Moon the Sun and other
planets and because of geological
fluctuations inside the Earth's core
scientists calculated that in 1900 the
Earth rotated four milliseconds slower
than at the end of the 21st century yes
there are people who watch this kind of
stuff
therefore people began to develop other
more accurate clots Atomic ones that we
still use but the strangest thing is
that even these clocks don't work in the
way people need
their main problem is excessive accuracy
Earth doesn't constantly rotate the same
way so workers sometimes add additional
seconds to the atomic clock or subtract
them and here's why
ordinary clocks are based on the
rotation of our planet when the time on
such a clock shows mourning it's also
morning outside
when the clock shows the late hour it's
dark outside
you're with me
our planet doesn't rotate at a constant
speed and the atomic clock is perfectly
stable
if the world always worked based on
these clocks
then time would sooner or later deviate
from the actual day and night
at some point the sun would begin to
rise at 6 pm and sunset would start by 7
am
to prevent this time Keepers change the
time on atomic clock slightly all of
this is necessary to preserve the usual
things for people so that the morning
hour on the clock and the street
coincide
well it's time for me to make like an
atom and split
that's it for today so hey if you
pacified your curiosity then give the
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on these videos and stay on the bright
side
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