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Tennessee Space Grant Consortium

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Presentation on theme: "Tennessee Space Grant Consortium"— Presentation transcript:

1 Tennessee Space Grant Consortium
University of Tennessee, Planetary Geosciences Institute Larry Taylor, RETURN TO THE MOON: THIS TIME TO STAY Tennessee Space Grant Consortium Larry Taylor Dawn Taylor Planetary Geosciences Institute Department of Earth & Planetary Sciences University of Tennessee

2 July 20, 1969 Dec. 12, 1972 Last Man First Man
It is the Heritage of Mankind that We are Explorers, to Go Where No Person has Gone Before. In January, 2004, President Bush established a national program of returning humans to space, first to the Moon, then Mars, and beyond.

3 With Exploration and Settling of the Moon,
We must Learn to “Live Off the Land”, in much the same way Our Ancestors Settled America. South Pole / Amundsen Site Water-Ice ?? University of Tennessee, Planetary Geosciences Institute Larry Taylor,

4 Living Conditions on the Moon
No Atmosphere - Deep Vacuum : to atm Temperatures: Equator: Day = C; Night = C Avg. = -20 ±120 0C Poles: Dark = C Lighted = -50 ±20 0C Micrometeorite Impact : Velocities to >>105 km/hr Radiation: Galactic / Cosmic / Solar-ray Particles

5 Radiation Solar Wind Weathering
University of Tennessee, Planetary Geosciences Institute Larry Taylor, Our Unhappy Moon Radiation Solar Wind Weathering ,000 MPH

6 Zap Pits Micrometeorite Impacts on a Lunar Glass Bead Impact Craters
University of Tennessee, Planetary Geosciences Institute Larry Taylor, Micrometeorite Impacts on a Lunar Glass Bead Projectile Φ Crater Φ = 1 10 0.5 m 5 m 5 mm Projectile = 1/100th the diameter of a hair on your head Impact Craters Zap Pits Courtesy Dave McKay

7 Lunar Soil Formation Comminution, Agglutination, & Vapor Deposition
University of Tennessee, Planetary Geosciences Institute Larry Taylor, Lunar Soil Formation Comminution, Agglutination, & Vapor Deposition The major Weathering and Erosional agent on the Moon is Meteorite / Micrometeorite Impacts.

8 University of Tennessee, Planetary Geosciences Institute
Larry Taylor, 100 mm Courtesy – Dave McKay Agglutinates 50 mm Polished section as viewed in Reflected Light Agglutinitic Glass Gas Vesicule Ilmenite Rocklet Volcanic Glass Bead SEM Pieces of minerals, rocks, and glass welded together by shock-melt glass

9 Lunar Soil = 40-80% Impact Glass
University of Tennessee, Planetary Geosciences Institute Larry Taylor, SEM - BSE Milky Way of nanophase Feo all white beads = Metallic Iron (Fe0) 1 mm Fe0 Lunar Soil = 40-80% Impact Glass All Impact Glass has Metallic Fe

10 MAGNETIC PROPERTIES OF LUNAR SOILS
University of Tennessee, Planetary Geosciences Institute Larry Taylor, MAGNETIC PROPERTIES OF LUNAR SOILS Abundance of Nano phase Fe0 in Lunar Soil Increases as Grain Size of the Particles Decreases; Magnetic Susceptability of Soil Particles Increases as Grain Size Decreases; All <50 m Particles (~50 wt%) of Lunar Soil are Easily Attracted by a simple Hand-held Magnet. (Taylor et al., 2005)

11 All Activities on the Moon Generate Dust
University of Tennessee, Planetary Geosciences Institute Larry Taylor, Apollo 17 Astronaut Harrison H. (Jack) Schmitt All Activities on the Moon Generate Dust Dusty Lunatic

12 SOLUTION: Magnetic brushes ??
University of Tennessee, Planetary Geosciences Institute Larry Taylor, Lunar Dust Effects: Must be Addressed before any Commercial Presence on the Moon can be Fully Evaluated. Potential for settling on all thermal and optical surfaces, such as Solar cells and mirrors; and Coatings, on seals, gaskets, optical lens, windows, electrical components, astronaut suits, etc.; and Abrasiveness, with regards to friction-bearing surfaces; Physiological effects on humans, especially with respect to the lungs, the lymph system, and potentially the cardiovascular system, in the case of extremely fine particles. “Lunar Dust Hay Fever”, Jack Schmitt SOLUTION: Magnetic brushes ??

13 ANOTHER WHITE HOUSE LEAK!!

14 MICROWAVE RADIATION for DUST MITIGATION
University of Tennessee, Planetary Geosciences Institute Larry Taylor, MICROWAVE RADIATION for DUST MITIGATION There is an entire subculture of people who derive pleasure from putting strange things in microwave ovens Things that microwave oven manufacturers would strenuously suggest should not be put there. In the hands of these people : Table grapes produce glowing plasmas; Soap bars mutate into abominable soap monsters; Compact discs incandesce; Even ‘Wet Poodles’ have been known to “explode.”

15 Microwave Heating of Lunar Soil
University of Tennessee, Planetary Geosciences Institute Larry Taylor, Microwave Heating of Lunar Soil NanoPhase Fe0 in Silicate Glass so small as to be below the effective “skin depth” of microwave penetration; makes for GREAT MICROWAVE COUPLING! Lunar soil in your kitchen microwave oven will melt [~1200 0C], BEFORE your tea-water boils [100 0C]!! Taylor & Meek (2005)

16 Where It All Started !! Initial Experiments
Performed in the Hot-node of a Multimode Oven Initial Experiments

17 LUNAR SOIL PROCESSING & PRODUCTS
University of Tennessee, Planetary Geosciences Institute Larry Taylor, LUNAR SOIL PROCESSING & PRODUCTS SINTERING and MELTING Creating Smooth-Sintered to Glassy Surfaces on the Moon Microwave Source Parabolic Metal Reflector Primary Cone of Microwaves

18 SUGGESTIONS ?? LUNAR SOIL PROCESSING & PRODUCTS SINTERING and MELTING
University of Tennessee, Planetary Geosciences Institute Larry Taylor, LUNAR SOIL PROCESSING & PRODUCTS SINTERING and MELTING Roads Buildings Landing Pads Recovery of Volatiles Glass Fiber Production Oxygen Production Antenna Dishes SUGGESTIONS ??

19 2.45 GHz Full Wave-Guide Microwave Unit
Dual Power Monitor Flexible Waveguide 3-Port Circulator 3-Stub Tuner Precision Sliding Short Circuit Short Dummy Load Applicator Chamber Prof. Taylor Vodka From Russian colleagues A Single Magnetron University of Tennessee, Planetary Geosciences Institute Larry Taylor,

20 RUN-AWAY MICROWAVE HEATING - >1000 0C/10 seconds
University of Tennessee, Planetary Geosciences Institute Larry Taylor, 50 Watts 1 gm Pellet, 1750 0C (3182 0C) 10 sec RUN-AWAY MICROWAVE HEATING - >1000 0C/10 seconds

21 TAYLOR ZAMBONI LUNAR-SURFACE PAVER
University of Tennessee, Planetary Geosciences Institute Larry Taylor,

22 TIME FOR ANOTHER WALK ON THE MOON
Coming Along? Courtesy, Jack Schmitt


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