The Atacama Large Millimeter Array


Book Description

The 1991 NRC decadal survey for astronomy and astrophysics included a project called the Millimeter Array (MMA). This instrument would be an array of millimeter-wavelength telescopes intended to capture images of star-forming regions and distant star-burst galaxies. With the addition of contributions form Europe, the MMA evolved into the Atacama Large Millimeter Array (ALMA), a proposed array of 64, 12-meter antennas. The project is now part of the NSF Major Research Equipment and Facilities budget request. Increased costs, however, have forced the NSF to reconsider the number of antennas. To help with that review, NSF asked the NRC to assess the scientific consequences of reducing the number of active antennas from 60 to either 50 or 40. This report presents an assessment of the effect of downsizing on technical performance specifications, performance degradation, and the ability to perform transformational science, and of the minimum number of antennas needed.




100 Years of Conservation


Book Description




The Forest Service


Book Description

Established in 1905, The Forest Service is steeped in history, conflict, strong personalities (including Theodore Roosevelt and Gifford Pinchot), and the challenges of managing 193 million acres of national forests and grasslands. This unique federal agency is one that combines forest management with wildlife, fish, recreation, mining, grazing, and hundreds of other uses. It operates in the midst of controversy and change. The original intent was to protect the public forests, protect the water supplies, and, when appropriate, provide timber. Much has changed over the last 100 years including many new laws, but the fact that these lands are still fought over today shows the foresight of politicians, foresters, scientists, and communities. This work brings to light the many and varied activities of the agency that many people know little about in a world that is constantly changing. Written by a former Forest Service national historian, topics discussed in the work include wilderness and the Wilderness Act of 1964, recreation battles and interagency rivalry with the National Park Service, timber management including clearcutting, ecosystem management, roadless area and controversies over RARE and RARE II studies, fish and wildlife management including endangered species before and after the Endangered Species Act of 1973, and mining and the General Mining Act of 1872. It also discusses the future challenges: forest fires, water protection and restoration, recreation, involving the public, and fish and wildlife.