SearchLites - Vol 14 No 1

Magazine Overview

Title: SearchLites
Issue: Vol. 14 No. 1
Date: Winter 2008
Publisher: The SETI League, Inc.
Country: USA
Language: English
ISSN: 1096-5599

Reflections on the 50th Anniversary of Sputnik

This lead article by Louis Friedman, Executive Director of The Planetary Society, reflects on the profound social and cultural impact of Sputnik's launch 50 years prior. While acknowledging its technological triumph and demonstration of Soviet power, Friedman emphasizes that Sputnik's true legacy lies in its startling impact on the American psyche and global politics. Space missions, despite their limited economic or military returns, are presented as major world events that capture global imagination and enhance international prestige. Friedman traces this legacy through key milestones such as Yuri Gagarin's flight, the Moon landing, and the International Space Station. He argues that these achievements transcended 'cold war' rivalry to become symbols of human greatness and hope for the future. The article highlights how Sputnik spurred an education revolution in the US, exemplified by the National Defense Education Act and the creation of space science courses. The author notes that the link between space achievements and education continues today, with nations like India and China engaging in a new 'Moon race' driven by inspiration and economic growth. Friedman concludes that the space race, though a 'cold war' battle, was a peaceful one that fostered confidence and inspired excellence. He posits that the vision of using technology for peace and a better future, rather than destruction, remains a key legacy of Sputnik.

Event Horizon

This section lists upcoming conferences and meetings relevant to SETI and astrobiology from April 2008 through June 2010. Events include the I-Con 27, Astrobiology Science Conference, SETI League Ham Radio QSO Parties, SETI League Annual Membership and Board of Trustees Meetings, various VHF conferences, Hamvention, Balticon, Rochester Hamfest, Society of Amateur Radio Astronomers Conferences, and International Astronautical Congresses in Italy, France, Scotland, Korea, and proposed events in Ohio and Florida. Members are encouraged to check the SETI League website or email for more details and to submit information about other upcoming events.

Guest Editorial: Why Smaller is Better

Professor Robert A. Lodder of the University of Kentucky discusses miniaturization as the greatest innovation in his field. He explains that miniaturization allows for faster, cheaper, and better solutions by enabling technology to be scaled down to fit specific problems. This ongoing movement spans centuries, from atomic theories and microscopes to nanotechnology. In electronics, it is exemplified by Moore's Law, driving the information technology revolution. Lodder identifies three 'AAA' problems in science that miniaturization is helping to address: Artificial Intelligence (building machines with human-level intelligence), Aging (allowing humans to live forever and thus learn more), and Astrobiology (studying life in the universe to expand human existence). He notes that advanced technology, particularly through nanotechnology, can become indistinguishable from nature.

Featured Song: Oh, Be A Fine Girl, Kiss Me

This section features a song by Dr. H. Paul Shuch, presented as a musical mnemonic to help students remember the Harvard stellar classification system (O, B, A, F, G, K, M). The lyrics describe stars, their colors, temperatures, and classifications, relating them to the mnemonic. It touches upon stellar evolution, star clusters, galaxies, and different populations of stars (Type I and Type II). The song also includes musical notation for the melody.

Ask Dr. SETI: Bayesian Statistics

In this Q&A, Dr. SETI explains Bayesian statistics as an elegant tool for analyzing conditional probabilities, where the occurrence of one event depends on another. He uses the example of blonde hair and blue eyes to illustrate how Bayes' Theorem can compute the probability of one event given the other. Applied to radio astronomy, it can help determine the probability that a received signal is representative of a particular astrophysical phenomenon. However, Dr. SETI notes that for SETI, a key conditional probability (the likelihood of intelligent aliens generating a detectable signal) is unknown, making direct application difficult without further data.

Ask Dr. SETI: SETI: Science, or Religion?

Responding to a reader's question about whether SETI is unscientific or akin to religion, Dr. SETI argues that scientific credibility is not solely based on short-term success but on the testability and falsifiability of hypotheses. He defines SETI science as distinct from UFO pseudoscience, emphasizing the establishment of a null hypothesis (no extraterrestrial civilizations) which a single detection would disprove. He likens abandoning SETI to giving up on flight or space exploration prematurely. Dr. SETI also acknowledges parallels with religious or philosophical systems, such as the search for cosmic companionship, and notes that many people of faith find SETI compatible with their beliefs. He highlights that SETI research has already expanded knowledge of the universe and led to technological applications, even without a confirmed detection.

Ask Dr. SETI: What Should We Say to Aliens?

Dr. SETI advises a student on designing a SETI poster for space. He suggests the best approach is to consider what one would most like to receive in a message from extraterrestrials and then decide how best to convey that information about humanity. He points to the extensive literature on interstellar message construction available online.

Book Review: Life in the Universe - a beginner's guide

This review by Lewis Dartnell covers his own book, "Life in the Universe - a beginner's guide." The book is described as an easy-reading introduction to astrobiology, covering the basics of life, humanity's place in the cosmos, and the potential appearance of alien visitors. Dartnell wrote the book for both general readers and students, incorporating recent advances and various fields of astrobiological research. The review highlights the book's illustrations, reading list, and glossary, and notes its positive reception by both academic and general audiences.

Flag of Earth to Fly Again

This article reports on the re-availability of the Flag of Earth, a symbol introduced in 1970 that flies at SETI League headquarters. The flag represents SETI as a global endeavor for humankind. After the original creator's death, the flag's distribution ceased. Now, a group of SETI researchers in Ohio, with the blessing of the creator's family, has revived the project, making cloth flags available and offering smaller printable versions. The website flagofearth.com and .net are now active, with .org to follow.

Happy Birthday, Sir Arthur!

This brief note congratulates Sir Arthur C. Clarke on his 90th birthday (December 16, 2007). Clarke, a member of The SETI League's Advisory Board, is recognized as a pioneer in satellite communications and a noted author.

Hardware Corner: Disabling AGC in the Icom PRC-1000

Greger Gimseus from Sweden details a modification to the Icom PRC-1000 radio to disable the Automatic Gain Control (AGC). He explains that the radio only offers 'fast' or 'slow' AGC, with no option to disable it. Gimseus describes his approach of shifting the AGC operating voltage reference by replacing a resistor in the voltage divider, allowing the signal to be controlled by a relay via software. He also mentions replacing capacitors in the voltage regulator circuit due to overheating issues.

Membership Renewal Information

This section provides information for members to renew their annual memberships, which are issued for the calendar year. It lists various membership categories and their corresponding annual dues, along with prices for merchandise such as pocket protectors, mouse pads, CDs, books, and t-shirts. Members are encouraged to pay via Visa or MasterCard and are provided with a form to fill out for renewal and orders.

Recurring Themes and Editorial Stance

The recurring themes in this issue of SearchLites include the historical significance of space exploration, particularly the 50th anniversary of Sputnik, and its impact on science, education, and international relations. The magazine consistently promotes SETI as a scientific endeavor, addressing common criticisms and defending its long-term approach. Astrobiology and the search for extraterrestrial life are also prominent. The issue emphasizes the importance of technological advancement, particularly miniaturization, and its role in scientific progress. The SETI League's role as a membership-supported organization dedicated to the search for extraterrestrial intelligence is evident throughout, particularly in the membership renewal section and the promotion of the Flag of Earth. The editorial stance is one of advocating for continued scientific inquiry, education, and the potential for positive, unintended consequences arising from space exploration and SETI research.