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Low Cost Microgravity Research for Humanity
The OMGL Community is an open source
aerospace engineering
initiative for the collaborative design of a balloon-lifted
freefalling
laboratory to create up to 90 sec of
low cost
high quality microgravity environment. Its
design and its experimental results will be open and their utilization
will be solely
governed
by the laws of open source engineering.
The OMGL system consists of a
freefalling rocket-propelled robotic
laboratory, a high altitude scientific probe, and a launch and
rescue ship. The laboratory is carried aloft by a stratospheric probe
lifted
by multiple superpressure, reusable helium balloons. It is released at
an altitude between 6km and 50km over the ocean
surface, according to its flight mode. Its hybrid rocket engine is able to compensate interactively an increasing air drag during descent.
The current design include an active vibration
damping subsystem
to minimize the vibrations, providing a microgravity
quality suitable for experiments in
fundamental physics - the theoretical goal is 10^-6 g, comparable to
drop tower capsules. In addition, 6 gyros allows stabilization with a
"no tail fins" streamlined design, minimizing the subsonic drag. Its
slender airframe is a paraboloid optimized for minimum wave drag
generation in the
transonic and supersonic flight phase. Of course these theoretical aims
need to be verified by tests in several wind tunnels, including a
hypersonic one. The small nozzle will also be designed with minimum
wave drag generation as a priority over propulsion efficiency.
The laboratory has 3 flight modes:
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Subsonic Single
Mode:
single interval of 32s of continuous freefall.
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Subsonic Multiple Mode:
4 intervals of 18s-24s of freefall in a single flight.
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Supersonic
Mode:
single interval of 90s of continuous freefall.
The first two freefall modes use a steam
and water rocket propulsion system, where water expelled from a
water tank by high pressure air is heated along all the airframe
surface in cooling tubes, then released as steam. The third freefall
mode reacts an alkali chemical
with the steam in a combustion chamber under the nozzle to generate
enough thrust to overcome the supersonic wave drag.
Once the
microgravity freefalling phase is over, a succession of landing
parachutes are deployed
to decelerate the laboratory. Near the surface of the ocean, 4
inflatable floaters are inflated by the laboratory for a soft sea
splashing. After splashing, the laboratory sends its GPS position to
the ship via
a satellite text message, and it's able to wait for the ship safely in
any oceanic
water for many hours, even days if necessary.
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Open
Source Development
The OMGL system is to be
developed by
an online community of volunteer
organizations, educational institutes, and core individuals based on its current/future design. This will
require
a worldwide collaboration of scientists, universities and
other scientific institutions, using their own laboratories and test
facilities to minimize the development costs. In return, volunteers
will be able to conduct their own experiments using the community
owned laboratories, in all pure and applied science areas with the
following limitations: no research can be made for military
applications and ALL results must be publicly available.
The ideal application of the laboratory is
fundamental physics and experiments for a unified Theory of Everything
(ToE). Fundamental biology research could also benefit from the
laboratory and we hope that it can be used to advance research in
tropical diseases. Of course, the laboratory cannot host live animals
but any in vitro experimentation can be easily flown. Fundamental
chemistry and nanotechnologies could also be reasonable applications.
Given the free nature of the collaboration, becoming a
volunteer does not imply a
formal obligation of the institution or individual with the community.
Volunteers have to cover
only their own expenses both in the development phase and in the
utilization/management phase (costs of using their own
laboratories and
facilities and any required materials for their experiments).
Collaboration between volunteers is highly encouraged.
During
and after the development of
the OMGL, developers will have the right to use the OMGL system. The
final system will be the property of the community and its usage will
be shared among the
volunteers
according to the amount of their contributions over the years, with
early contributions carrying more weight, especially the initial
efforts for building the system.
Universities
or peaceful research organizations, who are not part of the OMGL
community, will be free to build their own version of the
system, with the specific
condition that any changes to
the original design must be
made available as opensource for all to use. This is necessary for
security reasons.
Commercial providers will be
allowed build the OMGL too and sell flights to users which are
unable to
build their own OMGL system. Commercial providers will have
to follow the same opensource design condition, and they will have to
grant 10 free flights for
every 100 commercial flights, to be used by unprivileged educational
institutions
around the world who cannot afford even commercial flights.
Collaboration
between volunteers is highly encouraged, so a OMGL Community Center, utilizing a dotProject software, is used
to coordinate the work of developers, to enable the sharing of
design documents, simulation software and results of laboratory and
field experimentations, and for the discussion of the results.
Volunteers will also exchange ideas and suggestion with the general
public in a public forum (temporarily closed now).
Inquiries and requests to volunteer with us
are very
welcome at this address: volunteers@omgl.org.
All registered volunteers will receive a login and password for the
OMGL Community Center.
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Scientific
Utilization
The laboratory has been designed for integrating experimental payloads
requiring:
- volume and mass
greater then a drop tower's capsule maximum limits
- microgravity
intervals longer then those offered by parabolic flights
- extremely low
vibration levels
- lower cost per launch
then sub-orbital rockets
These can be the requirements of many experiments in fundamental
physics. The
goal of
Nanogravity Labs, who invented the OMGL, has always been to create
instruments and new technologies allowing
fundamental physics experiments leading hopefully to the long awaited
Theory of Everything
(ToE), the theoretical unification of all known physics. For more
information see this
Wikipedia article about it.
The large payload capacity can
also
allow multiple in vitro biological
and medical research units
sharing a single flight. Our hope is that it can be used for low cost
experiments in fundamental biology. Anyway, the laboratory is not
designed to host live
animals and plants.
Other applications could be
research in fundamental chemistry,
nanotechnologies and
molecular engineering.
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FORUM
(temporarily
closed)
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27th August 2006
Forum temporarily closed due to widespread abuse by spammers
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15th August 2005
OMGL
Community Center ready to accept volunteers
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24th December 2004
First OMGL
website
on the internet
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