[Music]
[Applause]
[Music]
[Applause]
[Music]
hello to all as you said jérôme
a few weeks ago I was defending my
PhD Thesis in Space Science
and for me it was something
very important because in fact it’s the
first tier in a career in the
Scientific Research
but when I started my studies
Scientific Research
I thought I knew exactly what
it was really a good idea
defined from what it was I thought that
I was going to integrate a group even a
community in fact of people who get
totally dedicate themselves to science with a
big uppercase whose only purpose in
life whose only vocation is to
put their intelligence in the service of
humanity then obviously it was
that in part true it is true that I have
integrated a team that devote a lot
of his time looking but actually
I misunderstood the real ones
motivations of a researcher most
of us did not choose our
career
by pure altruism for simply envy
to serve the needs of
mankind
in fact it is rather the profit
collateral which drives most of the
time a researcher in his voice that’s
something much more subjective
it’s nothing but his own
curiosity we did some research before
everything basically because we have
desire
because we’re interested because it
makes us curious and for the most part
of us actually discipline
scientist we chose to study
is squarely part of our passions and
a researcher’s career can take
a form that is essentially
determined by his tastes by his desires
because he is interested because he has
want to study by what makes him
curious and besides the researchers
can more or less all remember
one or more trigger it’s up to
to say that in fact at some point in his life
a researcher or a future researcher
because most of the time it’s in
his youth a moment of his life a
researcher meets his discipline
scientist a little bit by chance at
detour maybe
of a museum of a book of a video
why not a ted
alas alas something happens there
his curiosity is awake and the chain
is primed and very often that’s what
pushes him towards his discipline
scientist my trigger to me I
I will not tell you right now
but I can already tell you that this
curiosity
it actually comes primarily a
real wonder and
wonder and often it’s
powered by our imagination by
our imagination by their dreams
we often say half to laugh that
the scientists
I have nothing but a band of
big kids actually that’s right at
several levels I can confirm it
and especially as children
researchers have some ability
to listen to their imagination
to hear him trust him and
sometimes even to know how to translate it
downright in innovation and me
today
what I would like to do is you
encourage to listen to your imagination
and I will explain why
that’s what I actually did
my life since I was little
I know that when I grow up
I will go to university studied
astrophysics because since this
time there of my life my imagination he
is filled with alien planets
of space travel
and that’s where I am today then
my trigger to me actually it’s a
little bit more harmless than what I
have cited you as an example for me everything has
started with a movie and if we wanted
to be quite rigorous we should
say two trilogies since in my day
it was already two trilogies now
it’s almost become three trilogies
obviously I want to talk about star wars
I was about ten years old when the
prelogy came out to the cinema and then I
discovered the original and small trilogy
at small I started to like science
fiction in general I loved this world
filled with unlikely extraterrestrials
from space travel and that pushed me
to ask me if this world of dreams and
fiction that I loved so much could
exist somewhere you can exile
and in real life and that pushed me towards
astrophysical studies
and today it’s still one of my
passions it’s still my hobbies the
to take a science film
fiction and use it as a basis for
a scientific discussion
so today we were watching a movie
of science fiction on a real
silver platter since the title of this
event the title of this tea dicks it
is inspired by a trilogy of science
fiction that talks about the journey in the
time time in physics in science
it’s something quite
particular is the time we can
measure with a watch for example one
can count the remaining minutes of the
fake
but basically, what is measured
that she is the physical object that
measure time it’s something
that we can not really
represent that we can not touch
that we can not draw but we believe
know a lot about time
we know we can measure it we know
that it flows inexorably without
can not do anything it flows
always in the same sense in the same
direction and that it always flows
regular way
at least that was before
before the intervention of a gentleman
called albert einstein
Albert Einstein actually expanded our
vision of time with this grid of the
relativity and the theory of
relativity in fact she explains that
your time may go differently
of mine especially for example if you
to go very very fast
so to better understand I you
proposes that we imagine together
little experience I propose to you
get on a train and it’s a
train a bit special a super train
fast that can move at speed
of light at least a very fast
very very close to the speed of the
light maybe 99 99%
but before you notice I
take care to entrust yourself with a super
large clock like station clocks
that you are going to please hold
prominently above your head
and preferably in front of a window of
train because I’m going to stay on
the dock and from my motionless position
I will observe your passage to the
speed of light and I’m going to do
that while keeping an eye on my watch
staff get on the train you
take your clock the train starts at
that moment
although you and I always seemed
feel the same seconds
we always feel the same
flow of time individually and
well me since my mobile position
on the dock when I look at your
clock quickly pass
I see that the seconds are falling apart
more slowly for you your seconds
confess are longer the second hand of
your clock is going slower than
that of my watch because you
move at the speed of light the
time for you has dilated
so this is called the
relativistic dilation of time then
obviously this is of course a
thought experiment
it exists to my knowledge no
train able to move to the
speed of light that is pretty much
300 thousand kilometers per second
but in science fiction and in
especially in my dear star wars
the protagonists has two ships
space capable of moving at the
speed of light so it should
to feel the effects of relativity
that is, when the passengers of the
millenium falcon travel an hour a
example
at the speed of light the inhabitants
of the galaxy stay wisely on
their planet
motionless for them it may flow
weeks of months and so it would be
quite inconvenient at the scenario level
imagine for example the scene where luke
skywalker decides to leave
hurriedly his jedi training
because he felt that his friends
were in danger on a planet
distant well even with the ship
the fastest space in the galaxy
this company is completely dedicated to
failure because of dilation
temporal at his arrival everyone
will probably be dead already but
let’s be sure not forgiving you ask
a sci-fi movie to respect
the laws of physics
we ask him to have a scenario
coherent but yet there is
a sci-fi movie at least one
in any case to my knowledge who is
managed to stage the dilation
relativistic of time in a way to the
scientifically correct and
artistically relevant beautiful and
policy
it’s a 2014 movie I want to talk about
interstellar in interstellar two
astronauts travel on a planet
imaginary
called the millennium planet and the
planet muller has this particular
that she lives around a black hole and this
trip to a terrible blow for our two
astronauts since he suffers from a
big dilation of time ie
than an hour spent on the planet
millennium equals 7 years for their
families left on earth so it’s a
important element of the course of
history this relativistic dilation
of time so this time the
astronauts feel such a
dilation of time do not have so much
because of the high speed at which
they traveled to the planet
millennium but rather because the
millet planet and orbiting around
a black hole
a black hole in fact it’s just
a region of space where a mass
infinitely dense and compact to dig
around her a pouilly
infinite gravitational which nothing
can escape
not even the light where from elsewhere the
name of black holes and this attraction
infinite gravitational than the hole
black exerts on his neighborhood is
able to slow down there too
the passage of time it’s still a
relativistic effect and it is this effect that
was quite properly staged
in the interstellar film a thing
interesting to note is that the film
interstellar was realized in
collaboration with real
astrophysicist and he even gave rise to
scientific publications all to
made legitimate
that is to say if the imagination can
sometimes fueled innovation so for
summarize your time may flow
differently from mine if you go very
very quickly
or if you live in a field
gravitational much stronger than
me
and even if these two effects
look very very science fiction in
reality the relativistic dilation of the
time it is observed that exists I would dare
even say that it affects our daily
especially through a small object of
technologies I’m willing to bet
that at least half of you are
is served today I want to talk about the
gps then the gps actually how that
walk well the gps receiver that we have on
earth and most of the time it’s in
our cars communicate constantly
with a constellation of satellites there
there are about thirty who live
so orbiting the earth and its
satellites on board they each have
an extremely accurate clock and he
sends signals continuously to the
earth with among others as
information on their board thanks in
made this temporal information to
this information on time aboard the
satellite
the gps receiver that we have on
earth is able to estimate its position
compared to a handful of this
satellite and by extension its position
on earth ok easy these satellites
they live in the space they undergo
so a different gravity from me with
my GPS receiver in the car is
so the same effect that there is in
interstellar but upside down actually
since their gravity lower and
since they live in an orbit around
of the earth
so he turns around the earth with
a certain speed and in this case
the speed of gps satellites
it’s about three kilometers
second then it’s not yet the
speed of light that was 300
thousand kilometers a second pretty much
but it’s already enough to have a
small dilation of time and when one
combines the two relativistic effects
felt by gps satellites we get
actually reports that every day
every 24 hours
the clocks on board is accusing
error of about 30 8 microseconds
it means that every day it takes
correct gps satellite clocks
is about 30 8 microseconds 38
micro seconds on a day it can
seem absolutely derisory but in
calculations
two positions of our receivers gps that
can be translated into error of almost 10
km which is therefore quite insignificant
especially when looking for a building
in the city of cork
we can therefore thank very
warmly our friend einstein for
have in mathematics relativity
dilation of time and to guarantee
the proper functioning of our gps and
by the way to get back to albert
einstein
in fact I think that if he is
managed to put together the theory of
relativity
it’s probably not by getting up to
morning and saying to yourself today
humanity badly needs a good
scientific understanding of time
so today I maintain my
office I roll up my sleeves I
go to finish I do not sleep I do not eat
as long as I have not finished this good
physical definition of time actually to
the time in the early 1900s to
the time or einstein released this
theory actually einstein was employed
in a patent office and at his
time he saw a lot of
patents for mechanical clocks
always more and more precise and me
I’m willing to bet that it’s in
Seeing spend all his patents for
clocks that his curiosity for
the passage of time has been awakened
in fact me I think the genius
of albert einstein lies above all in the
being amazed by
something as simple as
the flow of time a little bit
maybe as isaac newton this is
marvel at the apples that
falls and me in this case
well I am amazed by the
science fiction movies
because if in reality the laws
physical limits what can be done
limit what we can experiment with
in science fiction alone
limits are those of the imagination
so we can virtually tried everything
push the physical laws into their
last entrenchments and it’s a
real playground for
innovation is moreover what is
beautiful is that sometimes the reality
eventually catch up with science fiction
for example
dozens of years before at the
popularization of mobile phones
the kirk captain was already using a
before everyone
in star trek or even stronger at his
time
Jules Verne was already writing the first
man’s trip to the moon
almost 100 years before it happened
produce in real what I mean by
this is the science fiction of the past
has become partly the reality
of today is so it means that
science fiction today the
contemporary science fiction
maybe she partly predicts our
future the reality of our future is
besides the topics that are fashionable
in science fiction works
contemporary well these are subjects
which also exist in
laboratories and in the institutes of
search like for example
Martian exploration with the film
alone on march where virtual reality the
personalized medicine is connected or
as dominique ohl showed everything to
the time the presidency of donald trump
the imagination of today is
tomorrow’s innovation and that’s why
that I would like to encourage you to
listen to your imagination you will see
that it will sharpen your curiosity and
that it may allow you to offer
to your spirit of innovation a ground
of play for example the next time
you are watching a sci-fi movie
ask yourself how much you
see may one day become our reality
if we take the example back to the
future and time travel
sorry today
the journey back in time is again
science fiction rather than the
science but these two disciplines are
come across and hopefully
and who knows where the scientific curiosity
can lead us in a few years
Thank you
[Applause]
[Music]
[Music]
[Applause]
[Music]
[Applause]
[Music]
hello to all as you said jérôme
a few weeks ago I was defending my
PhD Thesis in Space Science
and for me it was something
very important because in fact it’s the
first tier in a career in the
Scientific Research
but when I started my studies
Scientific Research
I thought I knew exactly what
it was really a good idea
defined from what it was I thought that
I was going to integrate a group even a
community in fact of people who get
totally dedicate themselves to science with a
big uppercase whose only purpose in
life whose only vocation is to
put their intelligence in the service of
humanity then obviously it was
that in part true it is true that I have
integrated a team that devote a lot
of his time looking but actually
I misunderstood the real ones
motivations of a researcher most
of us did not choose our
career
by pure altruism for simply envy
to serve the needs of
mankind
in fact it is rather the profit
collateral which drives most of the
time a researcher in his voice that’s
something much more subjective
it’s nothing but his own
curiosity we did some research before
everything basically because we have
desire
because we’re interested because it
makes us curious and for the most part
of us actually discipline
scientist we chose to study
is squarely part of our passions and
a researcher’s career can take
a form that is essentially
determined by his tastes by his desires
because he is interested because he has
want to study by what makes him
curious and besides the researchers
can more or less all remember
one or more trigger it’s up to
to say that in fact at some point in his life
a researcher or a future researcher
because most of the time it’s in
his youth a moment of his life a
researcher meets his discipline
scientist a little bit by chance at
detour maybe
of a museum of a book of a video
why not a ted
alas alas something happens there
his curiosity is awake and the chain
is primed and very often that’s what
pushes him towards his discipline
scientist my trigger to me I
I will not tell you right now
but I can already tell you that this
curiosity
it actually comes primarily a
real wonder and
wonder and often it’s
powered by our imagination by
our imagination by their dreams
we often say half to laugh that
the scientists
I have nothing but a band of
big kids actually that’s right at
several levels I can confirm it
and especially as children
researchers have some ability
to listen to their imagination
to hear him trust him and
sometimes even to know how to translate it
downright in innovation and me
today
what I would like to do is you
encourage to listen to your imagination
and I will explain why
that’s what I actually did
my life since I was little
I know that when I grow up
I will go to university studied
astrophysics because since this
time there of my life my imagination he
is filled with alien planets
of space travel
and that’s where I am today then
my trigger to me actually it’s a
little bit more harmless than what I
have cited you as an example for me everything has
started with a movie and if we wanted
to be quite rigorous we should
say two trilogies since in my day
it was already two trilogies now
it’s almost become three trilogies
obviously I want to talk about star wars
I was about ten years old when the
prelogy came out to the cinema and then I
discovered the original and small trilogy
at small I started to like science
fiction in general I loved this world
filled with unlikely extraterrestrials
from space travel and that pushed me
to ask me if this world of dreams and
fiction that I loved so much could
exist somewhere you can exile
and in real life and that pushed me towards
astrophysical studies
and today it’s still one of my
passions it’s still my hobbies the
to take a science film
fiction and use it as a basis for
a scientific discussion
so today we were watching a movie
of science fiction on a real
silver platter since the title of this
event the title of this tea dicks it
is inspired by a trilogy of science
fiction that talks about the journey in the
time time in physics in science
it’s something quite
particular is the time we can
measure with a watch for example one
can count the remaining minutes of the
fake
but basically, what is measured
that she is the physical object that
measure time it’s something
that we can not really
represent that we can not touch
that we can not draw but we believe
know a lot about time
we know we can measure it we know
that it flows inexorably without
can not do anything it flows
always in the same sense in the same
direction and that it always flows
regular way
at least that was before
before the intervention of a gentleman
called albert einstein
Albert Einstein actually expanded our
vision of time with this grid of the
relativity and the theory of
relativity in fact she explains that
your time may go differently
of mine especially for example if you
to go very very fast
so to better understand I you
proposes that we imagine together
little experience I propose to you
get on a train and it’s a
train a bit special a super train
fast that can move at speed
of light at least a very fast
very very close to the speed of the
light maybe 99 99%
but before you notice I
take care to entrust yourself with a super
large clock like station clocks
that you are going to please hold
prominently above your head
and preferably in front of a window of
train because I’m going to stay on
the dock and from my motionless position
I will observe your passage to the
speed of light and I’m going to do
that while keeping an eye on my watch
staff get on the train you
take your clock the train starts at
that moment
although you and I always seemed
feel the same seconds
we always feel the same
flow of time individually and
well me since my mobile position
on the dock when I look at your
clock quickly pass
I see that the seconds are falling apart
more slowly for you your seconds
confess are longer the second hand of
your clock is going slower than
that of my watch because you
move at the speed of light the
time for you has dilated
so this is called the
relativistic dilation of time then
obviously this is of course a
thought experiment
it exists to my knowledge no
train able to move to the
speed of light that is pretty much
300 thousand kilometers per second
but in science fiction and in
especially in my dear star wars
the protagonists has two ships
space capable of moving at the
speed of light so it should
to feel the effects of relativity
that is, when the passengers of the
millenium falcon travel an hour a
example
at the speed of light the inhabitants
of the galaxy stay wisely on
their planet
motionless for them it may flow
weeks of months and so it would be
quite inconvenient at the scenario level
imagine for example the scene where luke
skywalker decides to leave
hurriedly his jedi training
because he felt that his friends
were in danger on a planet
distant well even with the ship
the fastest space in the galaxy
this company is completely dedicated to
failure because of dilation
temporal at his arrival everyone
will probably be dead already but
let’s be sure not forgiving you ask
a sci-fi movie to respect
the laws of physics
we ask him to have a scenario
coherent but yet there is
a sci-fi movie at least one
in any case to my knowledge who is
managed to stage the dilation
relativistic of time in a way to the
scientifically correct and
artistically relevant beautiful and
policy
it’s a 2014 movie I want to talk about
interstellar in interstellar two
astronauts travel on a planet
imaginary
called the millennium planet and the
planet muller has this particular
that she lives around a black hole and this
trip to a terrible blow for our two
astronauts since he suffers from a
big dilation of time ie
than an hour spent on the planet
millennium equals 7 years for their
families left on earth so it’s a
important element of the course of
history this relativistic dilation
of time so this time the
astronauts feel such a
dilation of time do not have so much
because of the high speed at which
they traveled to the planet
millennium but rather because the
millet planet and orbiting around
a black hole
a black hole in fact it’s just
a region of space where a mass
infinitely dense and compact to dig
around her a pouilly
infinite gravitational which nothing
can escape
not even the light where from elsewhere the
name of black holes and this attraction
infinite gravitational than the hole
black exerts on his neighborhood is
able to slow down there too
the passage of time it’s still a
relativistic effect and it is this effect that
was quite properly staged
in the interstellar film a thing
interesting to note is that the film
interstellar was realized in
collaboration with real
astrophysicist and he even gave rise to
scientific publications all to
made legitimate
that is to say if the imagination can
sometimes fueled innovation so for
summarize your time may flow
differently from mine if you go very
very quickly
or if you live in a field
gravitational much stronger than
me
and even if these two effects
look very very science fiction in
reality the relativistic dilation of the
time it is observed that exists I would dare
even say that it affects our daily
especially through a small object of
technologies I’m willing to bet
that at least half of you are
is served today I want to talk about the
gps then the gps actually how that
walk well the gps receiver that we have on
earth and most of the time it’s in
our cars communicate constantly
with a constellation of satellites there
there are about thirty who live
so orbiting the earth and its
satellites on board they each have
an extremely accurate clock and he
sends signals continuously to the
earth with among others as
information on their board thanks in
made this temporal information to
this information on time aboard the
satellite
the gps receiver that we have on
earth is able to estimate its position
compared to a handful of this
satellite and by extension its position
on earth ok easy these satellites
they live in the space they undergo
so a different gravity from me with
my GPS receiver in the car is
so the same effect that there is in
interstellar but upside down actually
since their gravity lower and
since they live in an orbit around
of the earth
so he turns around the earth with
a certain speed and in this case
the speed of gps satellites
it’s about three kilometers
second then it’s not yet the
speed of light that was 300
thousand kilometers a second pretty much
but it’s already enough to have a
small dilation of time and when one
combines the two relativistic effects
felt by gps satellites we get
actually reports that every day
every 24 hours
the clocks on board is accusing
error of about 30 8 microseconds
it means that every day it takes
correct gps satellite clocks
is about 30 8 microseconds 38
micro seconds on a day it can
seem absolutely derisory but in
calculations
two positions of our receivers gps that
can be translated into error of almost 10
km which is therefore quite insignificant
especially when looking for a building
in the city of cork
we can therefore thank very
warmly our friend einstein for
have in mathematics relativity
dilation of time and to guarantee
the proper functioning of our gps and
by the way to get back to albert
einstein
in fact I think that if he is
managed to put together the theory of
relativity
it’s probably not by getting up to
morning and saying to yourself today
humanity badly needs a good
scientific understanding of time
so today I maintain my
office I roll up my sleeves I
go to finish I do not sleep I do not eat
as long as I have not finished this good
physical definition of time actually to
the time in the early 1900s to
the time or einstein released this
theory actually einstein was employed
in a patent office and at his
time he saw a lot of
patents for mechanical clocks
always more and more precise and me
I’m willing to bet that it’s in
Seeing spend all his patents for
clocks that his curiosity for
the passage of time has been awakened
in fact me I think the genius
of albert einstein lies above all in the
being amazed by
something as simple as
the flow of time a little bit
maybe as isaac newton this is
marvel at the apples that
falls and me in this case
well I am amazed by the
science fiction movies
because if in reality the laws
physical limits what can be done
limit what we can experiment with
in science fiction alone
limits are those of the imagination
so we can virtually tried everything
push the physical laws into their
last entrenchments and it’s a
real playground for
innovation is moreover what is
beautiful is that sometimes the reality
eventually catch up with science fiction
for example
dozens of years before at the
popularization of mobile phones
the kirk captain was already using a
before everyone
in star trek or even stronger at his
time
Jules Verne was already writing the first
man’s trip to the moon
almost 100 years before it happened
produce in real what I mean by
this is the science fiction of the past
has become partly the reality
of today is so it means that
science fiction today the
contemporary science fiction
maybe she partly predicts our
future the reality of our future is
besides the topics that are fashionable
in science fiction works
contemporary well these are subjects
which also exist in
laboratories and in the institutes of
search like for example
Martian exploration with the film
alone on march where virtual reality the
personalized medicine is connected or
as dominique ohl showed everything to
the time the presidency of donald trump
the imagination of today is
tomorrow’s innovation and that’s why
that I would like to encourage you to
listen to your imagination you will see
that it will sharpen your curiosity and
that it may allow you to offer
to your spirit of innovation a ground
of play for example the next time
you are watching a sci-fi movie
ask yourself how much you
see may one day become our reality
if we take the example back to the
future and time travel
sorry today
the journey back in time is again
science fiction rather than the
science but these two disciplines are
come across and hopefully
and who knows where the scientific curiosity
can lead us in a few years
Thank you
[Applause]
[Music]
[Music]
Please follow and like us: