PADE is the spanish acronym of Paquete Argentino de Experimentos (Argentine Experiments Package).
Their objective is to fly on board the Space Shuttle a package of seven experiments designed and constructed by Argentines Universities and Scientific Institutions, under the supervision of the Argentine Association for Space Technology (AATE).
The experiments are housed in a standard, sealed 2.5 cubic foot NASA GAS Canister with 60 lbs. payload weight.

The Experiments are the followings:
  • Experiment #1 - Transport of Fluids in Non-Circular Tubing.

    The objective of this experiment is evaluate the effect of capillary geometric section with relation to the condition of slippage. For this purpose, two conditions have been chosen in which a fluid (colored water) is allowed to slide, and a third condition which does not allow slippage of the fluid. For the two first conditions, it is important to measure displacement velocity to determine whether it depends on the geometric angle inside the tubing.
  • Experiment #2 - Surface Vibration of Water Drops.

    The experiment objective is to measure surface vibrations that are generated by surface tension in water drops, in a microgravity environment.
    The experiences accomplished in Earth have been in studying vibration processes of giant drops, whose Bond number are close to the ones showing the gravity influence.
    On Earth, it is difficult to achieve small Bond numbers, thereby removing the effects of gravity. The only solution is to reduce the drop size, however this makes the measurement process more difficult. The main objective of this experiment is to measure the vibration due to surface tension, which we believe has never been done before.
  • Experiment #3 - Migration of Drops and Bubbles in Microgravity.

    The purpose of this experiment is to verify current theories on Marangoni's Convection, and to test their feasibility for future development of a detector of drop and bubble movement through thermal gradients.
  • Experiment #4 - Exposure of Seeds to Space.

    This experiment is designed to examine cell mutation and modifications in several types of seeds exposed to space environment. The retrieved samples will be compared with control samples maintained on earth under a controlled environment.
  • Experiment #5 - Crystal Formation and Growth in a Microgravity Environment.

    The objective of this experiment is to determine the differences in crystal growth between earth conditions and microgravity. For this experiment an injection system will insert reagents into a gel solution of a corresponding chemical compound.
  • Experiment #6 - Maximum Accelerations Register.

    This experiment is designed to record maximum acceleration of the Orbiter during the flight. The experiment consists of two systems to record acceleration: a mechanical device which turns springs, and a device activated by the change of shape of strings from one stable equilibrium position to another.
    The first system is based on the trigger movement activated by springs. Five accelerometers on each axis are included, each one calibrated to a different acceleration ( 2, 3, 5, 8 and 12 G's).
    The second system is activated by a bent string which will change shape depending on the acceleration. This system is calibrated to change shape at 3, 5, 8, 12 and 17 G's in the Z axis of the Orbiter.
  • Experiment #7 - Geophysical Fluids Movement.

    A common goal of the science of meteorology and oceanography is the simulation of atmospheric and sea movement in spherical bodies. On Earth, achieving this is impossible due to the presence of gravity. In microgravity, it is possible to simulate this behavior. To achieve this goal, we must establish simulations that permit us, by analogies, to associate these movements to those in oceans and atmosphere. Although somewhat similar to the experiments of the students of the University of Bremen in the ESA parabolic flights, we will attempt to form convective movement on the surface of a section of a sphere due to the interior temperature gradient.


For more information contact: info@aate.org