Mercury's surface in "enhanced color," a color scheme created to emphasize color differences. This is not what Mercury would look like to the human eye, but by applying mathematical analysis to images, color differences can be accentuated beyond those visible to a person.
Mount Rushmore National Memorial under construction.
The workers had to endure conditions that varied from blazing hot to bitterly cold and windy. Each day they climbed 700 stairs to the top of the mountain to punch-in on the time clock. Then 3/8 inch thick steel cables lowered them over the front of the 500-foot face of the mountain in a "bosun chair." Despite the dangers, no one was killed during the project.
Otters in Glacier Bay National Park and Preserve, Alaska.
The sea otter population of Glacier Bay has increased dramatically in the past 20 years. Ecologists consider sea otters a keystone species here. Otters consume vast quantities of clams, urchins, crabs, and other invertebrates and their presence creates ripples through the ecosystem. NPS photo.
Every day someone like you becomes a wildland wildfire fighter, a teacher, a trail-builder, a museum curator, or a park ranger. Discover your opportunities in national parks. Come to play. Come to learn. Come to serve. Develop your environmental leadership skills. Find a job. Be the next generation to preserve and protect these great places.
With more than 80% of Americans living in urban areas, urban parks are more important than ever. The father of American landscape architecture, Frederick Law Olmsted, said of urban parks:
It is one great purpose of the Park to supply to the hundreds of thousands of tired workers, who have no opportunity to spend their summers in the country, a specimen of God's handiwork that shall be to them, inexpensively, what a month or two in the White Mountains or the Adirondacks is, at great cost, to those in easier circumstances.
Department of the Interior Acquisition Policy Release (DIAPR) 2008-4
SUBJECT: Purchase Requests
This policy release establishes a Departmentwide requirement for the use of the purchase request form in either IDEAS or the Financial Business Management System (FBMS) when procuring for goods or services over the micro-purchase threshold, as defined in FAR 2.101.
2. Effective Date:
October 1, 2008
3. Expiration Date:
No expiration unless superseded or canceled.
4. Background and Explanation:
Department of the Interior (DOI) bureaus and offices involved in the acquisition process have different requirements regarding the use of purchase requests. DOI is attempting to standardize the acquisition process. DOI's transition from one contract writing system (IDEAS) to another (PRISM) via FBMS will help achieve this standardization goal. A purchase request requirement is being initiated to standardize the process within DOI and to support internal controls as required by OMB Circular A-123.
5. Action Required:
Effective immediately, a purchase request must be prepared by the program
equisitioning office in the applicable contract writing system (IDEAS for those bureausoffices not yet implemented on FBMS, and PRISM for those bureausoffices having implemented FBMS) for actions resulting in the following:
• all new acquisition actions, regardless of funding (i.e., new purchase orders, delivery ask orders, blanket purchase agreementscalls, contracts);
• monetary changes to existing acquisition instruments (i.e., funding increases, accounting line changes, deobligations resulting from programmatic requirement shifts or reductions, etc.).
Purchase requests would not be necessary in the following situations: