From past month…
On November 1, 2010 Stephen Levy , technical director of the Tennessee Solar Energy Association, discussed solar energy in Knoxville.
On November 8, 2010 Stephen Yerka. UTK spoke about his work in studying what is under the ground for archeology and law enforcement. He uses ground penetrating radar, gradiometer (for magnetic fields) and soil electrical resistance.
On November 15 Dr. David Ludwig of Arcadis spoke on “The Precautionary Principle and Sustainability:A Systems Perspective” (PDH). We all need to think about Easter Island!
The November 22 meeting. Was an evening meeting starting at 6:00pm with hors d’oeuvres. Dr. Edgar Stach, Associate Professor at the University of Tennessee’s College of Architecture and Design and Lauren Rogers and Steven Coley presented the program. UT’s Team Living Light is one of only 20 teams chosen to design and build a marketable, functioning, solar powered house for the international Solar Decathlon contest in October 2011. The house is being built in Circle Park. The house is well thought out and has many interesting features. It will have a unified steel frame and it can have wheels added so it can be transported on the highway. The Technical Society secretary shamelessly told a redneck joke “you may be a redneck if you spent the weekend taking the wheels
off of your richest relative’s new house” The Team Living Light came back with “you may be a greenneck if you have solar panels on top of your doublewide”. See http://livinglightutk.com/ The intent of the evening meeting was to see if the Technical Society attendance would increase at an evening meeting. There were 28 members and guests and three speakers. Most of the attendees were regular meeting attendees and their spouses. The next evening meeting will probably be a Technical Society 90 year anniversary celebration.
On November 29 Dr. Yang Liu of the Planetary Geosciences Institute, Department of Earth and Planetary Sciences, The University of Tennessee spoke on the topic :“The Now Watery Moon”. An indispensible substance for life and a source of oxygen and hydrogen for rocket fuels, water is one of the most important resources for space exploration. The idea of using the moon, our nearest celestial neighbor, as a space station has been discussed because of the abundant resources it holds. One of the hindrances is that the moon has been regarded as “bone-dry” for the last 40 years. However, this view is changing rapidly owing to several recent reports of discovering “water” on the surface and in the interior of the Moon. The speaker has participated in some of the research that led to the report of water in the Moon. She presented theories of the moon’s origin and the origin of water on the moon. She described where water may be and the methods used to determine if it is there. (The speaker said the atmospheric pressure on the moon is of the order of 10exp-12 torr. and this inspired the secretary, Bob Scott, to calculate that a water molecule would travel around the moon 5 times before hitting another particle in the atmosphere. The escape velocity from the moon is 2.4 km per second which corresponds to what should be
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a rare temperature of ca 3400 degrees C. So most water molecules leaving the surface of the moon will fall back to the surface and eventually land in a hole at the moon’s poles where the sun never shines.)