SearchLites - Vol 12 No 3

Magazine Overview

SearchLites, Vol. 12, No. 3, Summer 2006, is the quarterly newsletter of The SETI League, Inc., a non-profit, educational, and scientific corporation dedicated to the search for extraterrestrial intelligence.

SETI League Presents Annual Awards

At its Annual Meeting on April 23, 2006, the SETI League honored two individuals for their contributions to SETI. Tom Sanders, a retired engineer and amateur radio operator, received the annual Orville Greene Service Award for his active contributions to SETI League technical activities, his service as Regional Coordinator for the US Northwest Region, and his coordination of a Ham Radio QSO Party. Marcus Leech, a Canadian internet security guru, was awarded the Giordano Bruno Memorial Award for his significant technical contributions to SETI science, including developing signal analysis software for the GNURadio project and participating in Project ARGUS. Leech also analyzed the SETI Hacker hypothesis, suggesting a non-zero risk to Earth's computer networks from malevolent signals.

Minutes of the Twelfth SETI League Annual Membership Meeting

The meeting was convened on April 23, 2006, at SETI League Headquarters. The minutes of the 2005 meeting were accepted. The Treasurer's Report for 2005 showed revenues of $26,161 and expenses of $24,765, resulting in a surplus of $1,396. The year-end account balance was $8,562, with an approximate current balance of $9,000. The projected budget for 2006 anticipated revenues of $25,150 and expenses of $25,000, with a projected ending balance of $8,712. The officers were re-elected for another term, and bylaws were modified to reflect H. Paul Shuch's elevation to Emeritus status. Cost sharing for the Executive Director Emeritus' health insurance premiums was approved.

Book Review: The Quantum Zoo

This section reviews "The Quantum Zoo: A Tourist's Guide to the Neverending Universe" by Marcus Chown. The review highlights the book's success in explaining complex concepts of quantum theory and relativity in a simple, comprehensible, and entertaining manner, using metaphors and imagery. It praises the author's ability to make abstract concepts accessible to the general reader, citing positive reviews from Jim Al-Khalili, Brian May, Publishers Weekly, and New Scientist.

Ask Dr. SETI

This Q&A section addresses two reader questions. The first, from Mark B., asks why SETI uses radio signals instead of light signals for searching and communication. Dr. SETI explains that 'light' in physics encompasses all electromagnetic radiation, including radio waves, which are suitable for SETI due to their ability to travel through interstellar space, be generated at high power, and have low natural interference. The response also touches upon the historical context of SETI research, starting with gamma rays and moving to microwaves, and mentions the current practice of also searching for laser signals.

The second question, from ES in California, asks how parabolic dish antennas work. The explanation likens them to a flashlight's reflector, concentrating faint signals (radio photons) into a focal point for the receiver, much like cupping one's hands behind an ear to hear better. It emphasizes that without a parabolic reflector, microwave receivers gather too few photons to detect distant signals.

Moonbounce Beacon Update

This article provides an update on the SETI League Moonbounce Beacon (W2ETI), which has returned to service after a nearly two-year outage. The beacon, used for calibrating SETI League stations worldwide by bouncing signals off the lunar surface, was initially activated in 2001. It has undergone several upgrades and repairs, including the installation of a new 1/2 kW MOSFET power amplifier, atomic and GPS frequency standards, and a 3 kW UPS. The article details the beacon's operational history, including power levels, reliability issues with previous amplifiers, and the extensive refurbishment process.

Announcing: The Fourth International Congress for Radio Astronomy

This section announces the upcoming Fourth International Congress for Radio Astronomy, co-hosted by the European Radio Astronomy Club and The SETI League, Inc. The event is scheduled for September 8-10, 2006, at the University of Applied Science in Heidelberg, Germany. It will feature lectures, workshops, and opportunities to visit the city. The congress is described as family-friendly, with accommodation and travel information provided.

Event Horizon

This section lists upcoming conferences and meetings relevant to SETI and radio astronomy, including SETICon06, Green Bank Star Quest III, Central States VHF Conference, World Science Fiction Conventions, International Astronomical Union assemblies, EME Conferences, EuroSETI06, International Astronautical Congresses, AMSAT Space Symposiums, and Philcon. It also includes the date for the Eighth annual SETI League Ham Radio QSO Party in April 2007.

Annual Renewal

This section is a renewal notice for SETI League memberships, reminding members to check their expiration dates and renew their subscriptions. It provides a table of membership categories and their annual costs, as well as a list of premiums available for purchase, such as pocket protectors, mouse pads, and CDs of conference proceedings. Payment options include checks and credit cards.

Recurring Themes and Editorial Stance

The recurring themes in this issue revolve around the ongoing efforts and advancements in the Search for Extraterrestrial Intelligence (SETI), including the recognition of individuals contributing to the field, the technical aspects of radio astronomy and signal detection, and the organizational and financial health of The SETI League. The editorial stance, as reflected in the content, is one of active engagement in SETI research, public education, and community building within the amateur and professional scientific communities. The newsletter promotes scientific inquiry, provides updates on SETI League activities, and encourages participation through membership and attendance at events.