Discovery Channel
has done a remarkable film about Starlab, which will be on your screen
soon, and will be repeated for a year.
Extracts
from interviews they used were of necessity short. So here
are some of the musings from our experts which the Discovery people loved
but for which, frustratingly enough, they simply didnt have enough
screen time.
Serguei
Krasnikov, Physicist
It
is extremely important to physics for us to know whether or not time travel
is possible. That is why I am working on it. If time travel is not possible,
that answer will be as important as if time travel were a possibility.
The question actually concerns causality. That is to say, it will be of
great importance of course if we discover that an effect can happen before
its cause.
And
the question of time travel is exactly the same question......
Why we have never met a traveller from the future? This is simple.
A time machine may allow travel , but by its very definition it cannot
deliver you to any point before the machine was built. The grandfather
paradox? Stated simply. If a man were to travel back in time and were
to kill his own grandfather he would render his own existence impossible.
I was a science fiction fan and it was very important to me in my deciding
to become a physicist and in the subjects that I chose to study. The best
SF writers I have ever read or have ever heard about were the Strugatsky
borthers. A time machine was mentioned in only one of their
novels and in an absolutely non-serious way. One of them was a scientist
himself and so they did not use pseudoscientific details, that was not
their way. Paul Nahins book Time Machines is a very profound review
on time machines as they are understood in fiction. A Time machine as
we conceive it now would not be as it appears in H.G. Wells book,
The Time Machine, there would be no levers. No wheels. The way we consider
Time machines is just to consider the geometry of space/time where a person
can meet his or her young
Manuela Eber-Koyuncu
Nature
has already proven that things can self-assemble in quite large structures
like trees, there is no reason why it should be only possible to make
tiny structures. Why should it not be possible that one day structures
as large as buildings grow by themselves?
I
am a ceramic scientist and engineer and the reason why I am standing here
at the beach in Oostende is because one of the areas that I am exploring
is related to nature made materials. I am taking inspiration from these
incredible materials like those seashells that are made by the organism
that live in such shells.
This
seashell that you can find laying around at the beach left behind looks
not just very beautiful. It has properties that are very much of interest
to me as ceramic scientist. For example, it is strong, tough and is of
light weight. But the reason why it exhibits these properties is a secret
that you can only find out by looking extremely deep into this material.
What
you will find is that the internal structure of this material exhibits
a perfect ordering. It looks just like the bricks of a brick building
being stacked one upon another.
This
level of organization that such materials show is a central issue in materials
science. In order to make ceramics perform better, we need precise control
of structural features in order to achieve a desired set of properties.
There
are materials scientists that would love to use such control of organization
to make hard and soft materials that are used as replacements in your
body. For example, we could use artificial bones that are strong, light
weight and that most importantly are tough, meaning they dont break
when you bend them slightly. Nowadays, our bone replacements are rather
heavy and stiff. This is one of the areas that could benefit from understanding
how nature makes its own materials.
The
basics are really to understand the processes that organisms in nature,
like the mussel, employ in order to make their very own material. For
sea creatures to ensure their own protection they use proteins which are
in all living things. Proteins act as line managers and construction workers,
which make sure that materials grow in a certain way. I am using the specific
qualities of proteins to help me design materials. For instance they could
make something like this (showing varistors) which is a ceramic material
that protects your TV or computer in your home from voltage surges that
may occur during lightening for example, in quite a similar way as the
shells protect these creatures that live in them.
Almost
all of the materials today, especially the ceramics, are produced at conditions
that involve high temperature and pressures. This leads us to another
point that is also very interesting for me: materials that are made by
organisms are made at low temperatures, low pressures and even in seawater
without toxic waste. This is a completely environmentally friendly way
of producing materials, which is unsurpassed up to now.
Nature
has already proven that things can self-assemble in quite large structures
like trees, there is no reason why it should be only possible to make
tiny structures. Why should it not be possible that one day structures
as large as buildings grow by themselves.
I
am also working on the disappearance of computers by integrating very
small components of computers into fibres as thin as string; in time these
fibres will have the same dimensions and flexibility as a single human
hair.
+
I believe that most of the people that do scientific investigations have
at some point had their own Eureka moment. The same is true for me. For
example, every time you look at such a seashell at very high magnifications
using a microscope you have a Eureka moment because every single time
you find something that is a piece of the whole puzzle in explaining why
the structures are they way they are.
+ For me,
the most important scientific advance is the completion of the human genome
project, which lays the foundation of curing life threatening diseases
like cancer.
+ I think
that science and technology is important but I dont think that it
can provide all the answers. We should also be aware that advances in
science and technology can be like a double-edged sword, that can have
good or bad consequences.
Working
at Starlab provides me with an amazing interdisciplinary environment that
inspires research collaboration in fields that are spanning over different
disciplines. For example, in my field of interest, expertise not only
from materials science is needed but also from chemistry, biology, biochemistry
and even from electronics.
I
also believe in the notion of Deep Future. I was always very close to
nature, grew up in a village with 500 inhabitants where life was in many
ways in accordance with nature. Having spent many years in the city you
realize how badly effected nature is by humans and how little people really
appreciate natural marvels. I hope that we will learn more from nature
and take nature as an inspiration in doing things and especially in making
materials: perfect and environmentally friendly. This is deep future.
You have to be able to dream about something that seems impossible to
achieve within a short time and you must also believe in your dreams.
I
work together with my husband on all projects. We are both ceramic engineers
but we have knowledge in different subjects. It is very beneficial to
work together. We are 24 hours together. At work, we are constantly engaged
in lively discussions and it is sometimes unavoidable to talk about work
at home also. Working this way is definitely very efficient. But we also
have other interests like bicycling, reading, hiking etc. that we do in
our spare time.
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