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Silver Moon - GRPO 16948 - Public domain engraving

Moon, concave engraved silver disk with maker's mark "NR" and two buttons on either side near the top center of the disk. The buttons have eye holes on the back to attach to a chain or fastener. The disk has an More

Big Tree--Starr king; 366 feet high, 50 feet circumference, Calaveras County

The Library holds only one photo from a pair published as a stereographic view. Gems of California scenery, no. 895. LOT subdivision subject: Calaveras Big Trees. This record contains unverified old data from c More

Abraham Lincoln, near view, 281 ft high, 44 ft. circumference, Calaveras, Big Tree Grove

(A giant tree, with people standing next to trunk) The Library holds only one photo from a pair published as a stereographic view. Gems of California scenery, no. 907. LOT subdivision subject: Calaveras Big Tre More

Big Tree--George Washington, 284 feet high, 52 feet circumference - Calaveras County

The Library holds only one photo from a pair published as a stereographic view. Gems of California scenery, no. 893. LOT subdivision subject: Calaveras Big Trees. This record contains unverified old data from c More

The Three Graces, 272 feet high, circumference 32 feet, Mammoth Grove, Calaveras County

Big Trees. The albumen silver print is a photographic printing process that was widely used in the 19th century. It involves coating paper support with a mixture of egg whites and salt, which creates a glossy More

Father of the Forest - 112 feet circumference - Mammoth Grove

The Library holds only one photo from a pair published as a stereographic view. Gems of California scenery, no. 889. LOT subdivision subject: Calaveras Big Trees. This record contains unverified old data from c More

Mother of the Forest; 305 ft. high; 63 ft. circumference; bark off 121 ft.

The Library holds only one photo from a pair published as a stereographic view. Gems of California scenery, no. 888. LOT subdivision subject: Calaveras Big Trees. This record contains unverified old data from c More

Big Tree--William Cullen Bryant, 305 feet high, 45 feet in circumference - Near View, Calaveras County

The Library holds only one photo from a pair published as a stereographic view. Gems of California scenery, no. 885. LOT subdivision subject: Calaveras Big Trees. This record contains unverified old data from c More

Big Trees. Andrew Johnson, 272 feet high, 32 feet circumference and William Cullen Bryant, Mammoth Grove

The Library holds only one photo from a pair published as a stereographic view. Gems of California scenery, no. 884. LOT subdivision subject: Calaveras Big Trees. This record contains unverified old data from c More

Mammoth trees, Cal. Abraham Lincoln, near view, 281 feet high, 44 feet circumference. Big Tree Grove, Calaveras Co.

No. 907. Forms part of the Marian S. Carson Collection at the Library of Congress.

Section of the Grizzly Giant, 101 feet circumference

Carleton E. Watkins (American, 1829–1916) The albumen silver print is a photographic printing process that was widely used in the 19th century. It involves coating paper support with a mixture of egg whites an More

The Father of the Forest, 112 feet circumference, Calaveras Grove

Carleton E. Watkins (American, 1829–1916) The albumen silver print is a photographic printing process that was widely used in the 19th century. It involves coating paper support with a mixture of egg whites an More

The Tripod, 94 feet circumference

Carleton E. Watkins (American, 1829–1916) The albumen silver print is a photographic printing process that was widely used in the 19th century. It involves coating paper support with a mixture of egg whites an More

A rural retreat in Washington - Cedar stump 45 ft. in circumference

3 women sticking their heads out of the stump. Stereo copyrighted by Darius Kinsey. No. 502. This record contains unverified data from caption card. Caption card tracings: Trees; BI; Shelf. Kinsey, Darius, 1869-1945.

Foresters at Work - Virginia, National Forest Service photograph.

Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Barn erection. Unloading barn panels around circumference of the foundation. These panels were loaded in order of distribution at the site. Southeast Missouri Farms Project

Picryl description: Public domain image of military vehicle, automobile, tractor truck, free to use, no copyright restrictions.

Southeast Missouri Farms Project. House erection. Panels are moved into place around circumference and nailed

Picryl description: Public domain image of a construction site, wooden frame, timber, free to use, no copyright restrictions.

A couple of men standing next to a truck, Great Depression. FSA/OWI Photograph

Picryl description: Public domain image of industrial or agricultural worker, 1930s, 20th-century, free to use, no copyright restrictions. show less

Future may see hens lay eggs of different colors through experiments of government experts. Washington, D.C., April 7. Joseph's coat of many colors may now be duplicated in the poultry laboratory where hens paint their own eggs over a range of hues from pearly white, through the various shades of brown, to sky blue. These experiments are in progress at the National Agricultural Research Center, Beltsville, Maryland. In this picture is shown Charles A. Denton, Junior Chemist, measuring the width, circumference and height of the white of a colored egg to determine the amount of albumen present. 4-7-39

Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description

Assault boat Production. Building assault boats for U.S. Marine Corps. Workers in the balloon room apply inflatable tubular guard rail around outer circumference of boat. Goodyear, Akron, Ohio

Picryl description: Public domain image of an aircraft, assembly line, industrial facility, 1930s aviation, free to use, no copyright restrictions.

Assault boat Production. Building assault boats for U.S. Marine Corps. Woman worker in balloon room applies rubber cement to fittings through which hand ropes will be strung around outer circumference of boat. Goodyear, Akron, Ohio

Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description

Anaconda smelter, Montana. Anaconda Copper Mining Company. Top of one of the multiple-hearth roasting furnaces. The concentrates move by gravity from one hearth to another; in one hearth the material is moved from circumference to center and on the next hearth vice versa

Public domain photograph of 1930s America, free to use, no copyright restrictions image - Picryl description

Photograph of Virgil Blankenship Measuring the Circumference of a Short Leaf Pine Tree

Original caption: Virgil Blankenship measuring circumference of short leaf pine tree during timber marking south of Winona, MO. Historic Photographs

Photograph of Forest Ranger Frank Kopecky Measuring the Circumference of Short Leaf Pine

Original caption: Forest ranger Frank Kopecky measures circumference of shortleaf pine in 40 acre stand planted by CCC in 1938 and 1940. Historic Photographs

CAPE CANAVERAL, Fla. – Technicians in the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center install a specialized overhead crane onto the Fine Guidance Sensor, or FGS. The sensor will be lifted and moved to the Orbital Replacement Unit Carrier or ORUC, for installation. An FGS consists of a large structure housing a collection of mirrors, lenses, servos, prisms, beam splitters and photomultiplier tubes. There are three fine guidance sensors on Hubble located at 90-degree intervals around the circumference of the telescope. Along with the gyroscopes, the optical sensors are a key component of Hubble’s highly complex but extraordinarily effective “pointing control system.” The ORUC is one of three carriers that are being prepared for the integration of telescope science instruments, both internal and external replacement components, as well as the flight support equipment to be used by the astronauts during the fifth and final Hubble servicing mission, STS-125, on space shuttle Atlantis. Launch is targeted for Oct. 8. Photo credit: NASA/Jim Grossmann KSC-08pd2347

CAPE CANAVERAL, Fla. – Technicians in the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center install a specialized overhead crane onto the Fine Guidance Sensor, or FGS. The sensor will be lif More

A US Marine M998 High-Mobility Multipurpose Wheeled Vehicle (HMMWV) and two M54 Series 5-ton Cargo Trucks. The vehicles are parked on a Mogadishu street and are cordoned off with white tapes. Several locals have gathered around the circumference of the tape. This are has become a walk-in medical and dental clinic for the residents of the capital city. Medical personnel from the Expeditionary Unit, Service Support Group 15, Camp Pendleton, California conducted medical civic action program. This mission is in direct support of Operation Restore Hope

The original finding aid described this photograph as: Subject Operation/Series: RESTORE HOPE Base: Mogadishu Country: Somalia (SOM) Scene Camera Operator: PHCM Terry Mitchell Release Status: Released to P More

Lake Baikal Circumference Railway, tunnel (early 20th century), Baikal, Russia

Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.

Lake Baikal Circumference Railway (early 20th century), Baikal, Russia

Picryl description: Public domain image of railroad tracks, railway, train car, free to use, no copyright restrictions.

CAPE CANAVERAL, Fla. – The Fine Guidance Sensor, or FGS, is being prepared for backlight inspection and cleaning in the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center. The FGS is part of the payload for the fifth and final Hubble servicing mission, STS-125, aboard space shuttle Atlantis. An FGS consists of a large structure housing a collection of mirrors, lenses, servos, prisms, beam splitters and photomultiplier tubes. There are three fine guidance sensors on Hubble located at 90-degree intervals around the circumference of the telescope. Along with the gyroscopes, the optical sensors are a key component of Hubble’s highly complex but extraordinarily effective “pointing control system.” Atlantis is targeted to launch Oct. 8. Photo credit: NASA/Jack Pfaller KSC-08pd2340

CAPE CANAVERAL, Fla. – The Fine Guidance Sensor, or FGS, is being prepared for backlight inspection and cleaning in the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center. The FGS is part of More

CAPE CANAVERAL, Fla. – Technicians in the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center are ready to move the Fine Guidance Sensor, or FGS, for integration onto the Orbital Replacement Unit Carrier, or ORUC. An FGS consists of a large structure housing a collection of mirrors, lenses, servos, prisms, beam splitters and photomultiplier tubes. There are three fine guidance sensors on Hubble located at 90-degree intervals around the circumference of the telescope. Along with the gyroscopes, the optical sensors are a key component of Hubble’s highly complex but extraordinarily effective “pointing control system.” Atlantis is targeted to launch Oct. 8. Photo credit: NASA/Jack Pfaller KSC-08pd2344

CAPE CANAVERAL, Fla. – Technicians in the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center are ready to move the Fine Guidance Sensor, or FGS, for integration onto the Orbital Replacement U More

CAPE CANAVERAL, Fla. – Technicians in the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center are ready to move the Fine Guidance Sensor, or FGS, for integration onto the Orbital Replacement Unit Carrier, or ORUC. An FGS consists of a large structure housing a collection of mirrors, lenses, servos, prisms, beam splitters and photomultiplier tubes. There are three fine guidance sensors on Hubble located at 90-degree intervals around the circumference of the telescope. Along with the gyroscopes, the optical sensors are a key component of Hubble’s highly complex but extraordinarily effective “pointing control system.” Atlantis is targeted to launch Oct. 8. Photo credit: NASA/Jack Pfaller KSC-08pd2343

CAPE CANAVERAL, Fla. – Technicians in the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center are ready to move the Fine Guidance Sensor, or FGS, for integration onto the Orbital Replacement U More

CAPE CANAVERAL, Fla. – A specialized overhead crane lifts the Fine Guidance Sensor, or FGS, in the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center. The sensor will be moved to the Orbital Replacement Unit Carrier, or ORUC, for installation. An FGS consists of a large structure housing a collection of mirrors, lenses, servos, prisms, beam splitters and photomultiplier tubes. There are three fine guidance sensors on Hubble located at 90-degree intervals around the circumference of the telescope. Along with the gyroscopes, the optical sensors are a key component of Hubble’s highly complex but extraordinarily effective “pointing control system.” The ORUC is one of three carriers that are being prepared for the integration of telescope science instruments, both internal and external replacement components, as well as the flight support equipment to be used by the astronauts during the fifth and final Hubble servicing mission, STS-125, on space shuttle Atlantis. Launch is targeted for Oct. 8. Photo credit: NASA/Jim Grossmann KSC-08pd2348

CAPE CANAVERAL, Fla. – A specialized overhead crane lifts the Fine Guidance Sensor, or FGS, in the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center. The sensor will be moved to the Orbita More

CAPE CANAVERAL, Fla. – Technicians in the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center help guide a specialized overhead crane toward the Fine Guidance Sensor, or FGS. The sensor will be lifted and moved to the Orbital Replacement Unit Carrier or ORUC, for installation. An FGS consists of a large structure housing a collection of mirrors, lenses, servos, prisms, beam splitters and photomultiplier tubes. There are three fine guidance sensors on Hubble located at 90-degree intervals around the circumference of the telescope. Along with the gyroscopes, the optical sensors are a key component of Hubble’s highly complex but extraordinarily effective “pointing control system.” The ORUC is one of three carriers that are being prepared for the integration of telescope science instruments, both internal and external replacement components, as well as the flight support equipment to be used by the astronauts during the fifth and final Hubble servicing mission, STS-125, on space shuttle Atlantis. Launch is targeted for Oct. 8. Photo credit: NASA/Jim Grossmann KSC-08pd2346

CAPE CANAVERAL, Fla. – Technicians in the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center help guide a specialized overhead crane toward the Fine Guidance Sensor, or FGS. The sensor will be More

CAPE CANAVERAL, Fla. – Technicians in the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center perform backlight inspection and cleaning on the Fine Guidance Sensor, or FGS. The FGS is part of the payload for the fifth and final Hubble servicing mission, STS-125, aboard space shuttle Atlantis. Black light inspection uses UVA fluorescence to detect possible particulate microcontamination, minute cracks or fluid leaks. An FGS consists of a large structure housing a collection of mirrors, lenses, servos, prisms, beam splitters and photomultiplier tubes. There are three fine guidance sensors on Hubble located at 90-degree intervals around the circumference of the telescope. Along with the gyroscopes, the optical sensors are a key component of Hubble’s highly complex but extraordinarily effective “pointing control system.” Atlantis is targeted to launch Oct. 8. Photo credit: NASA/Jack Pfaller KSC-08pd2341

CAPE CANAVERAL, Fla. – Technicians in the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center perform backlight inspection and cleaning on the Fine Guidance Sensor, or FGS. The FGS is part o More

CAPE CANAVERAL, Fla. – Technicians in the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center help guide the Fine Guidance Sensor, or FGS, as it moves toward the Orbital Replacement Unit Carrier or ORUC, for installation. An FGS consists of a large structure housing a collection of mirrors, lenses, servos, prisms, beam splitters and photomultiplier tubes. There are three fine guidance sensors on Hubble located at 90-degree intervals around the circumference of the telescope. Along with the gyroscopes, the optical sensors are a key component of Hubble’s highly complex but extraordinarily effective “pointing control system.” The ORUC is one of three carriers that are being prepared for the integration of telescope science instruments, both internal and external replacement components, as well as the flight support equipment to be used by the astronauts during the fifth and final Hubble servicing mission, STS-125, on space shuttle Atlantis. Launch is targeted for Oct. 8. Photo credit: NASA/Jim Grossmann KSC-08pd2350

CAPE CANAVERAL, Fla. – Technicians in the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center help guide the Fine Guidance Sensor, or FGS, as it moves toward the Orbital Replacement Unit Carri More

CAPE CANAVERAL, Fla. – A specialized crane is moved toward the Fine Guidance Sensor in the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center. The sensor will be lifted and moved to the Orbital Replacement Unit Carrier or ORUC, for installation. An FGS consists of a large structure housing a collection of mirrors, lenses, servos, prisms, beam splitters and photomultiplier tubes. There are three fine guidance sensors on Hubble located at 90-degree intervals around the circumference of the telescope. Along with the gyroscopes, the optical sensors are a key component of Hubble’s highly complex but extraordinarily effective “pointing control system.” The ORUC is one of three carriers that are being prepared for the integration of telescope science instruments, both internal and external replacement components, as well as the flight support equipment to be used by the astronauts during the fifth and final Hubble servicing mission, STS-125, on space shuttle Atlantis. Launch is targeted for Oct. 8. Photo credit: NASA/Jim Grossmann KSC-08pd2345

CAPE CANAVERAL, Fla. – A specialized crane is moved toward the Fine Guidance Sensor in the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center. The sensor will be lifted and moved to the Orbita More

CAPE CANAVERAL, Fla. – Technicians in the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center check the Fine Guidance Sensor, or FGS, as it is lifted from its stand. The sensor will be moved to the Orbital Replacement Unit Carrier or ORUC, for installation. An FGS consists of a large structure housing a collection of mirrors, lenses, servos, prisms, beam splitters and photomultiplier tubes. There are three fine guidance sensors on Hubble located at 90-degree intervals around the circumference of the telescope. Along with the gyroscopes, the optical sensors are a key component of Hubble’s highly complex but extraordinarily effective “pointing control system.” The ORUC is one of three carriers that are being prepared for the integration of telescope science instruments, both internal and external replacement components, as well as the flight support equipment to be used by the astronauts during the fifth and final Hubble servicing mission, STS-125, on space shuttle Atlantis. Launch is targeted for Oct. 8. Photo credit: NASA/Jim Grossmann KSC-08pd2349

CAPE CANAVERAL, Fla. – Technicians in the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center check the Fine Guidance Sensor, or FGS, as it is lifted from its stand. The sensor will be moved More

CAPE CANAVERAL, Fla. – Technicians in the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center perform backlight inspection and cleaning on the Fine Guidance Sensor, or FGS. The FGS is part of the payload for the fifth and final Hubble servicing mission, STS-125, aboard space shuttle Atlantis. Black light inspection uses UVA fluorescence to detect possible particulate microcontamination, minute cracks or fluid leaks. An FGS consists of a large structure housing a collection of mirrors, lenses, servos, prisms, beam splitters and photomultiplier tubes. There are three fine guidance sensors on Hubble located at 90-degree intervals around the circumference of the telescope. Along with the gyroscopes, the optical sensors are a key component of Hubble’s highly complex but extraordinarily effective “pointing control system.” Atlantis is targeted to launch Oct. 8. Photo credit: NASA/Jack Pfaller KSC-08pd2342

CAPE CANAVERAL, Fla. – Technicians in the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center perform backlight inspection and cleaning on the Fine Guidance Sensor, or FGS. The FGS is part o More

CAPE CANAVERAL, Fla. – Technicians in the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center help guide the Fine Guidance Sensor, or FGS, as it is lifted over the crossbar of the stand at right. The sensor will be installed on the Orbital Replacement Unit Carrier or ORUC, below. An FGS consists of a large structure housing a collection of mirrors, lenses, servos, prisms, beam splitters and photomultiplier tubes. There are three fine guidance sensors on Hubble located at 90-degree intervals around the circumference of the telescope. Along with the gyroscopes, the optical sensors are a key component of Hubble’s highly complex but extraordinarily effective “pointing control system.” The ORUC is one of three carriers that are being prepared for the integration of telescope science instruments, both internal and external replacement components, as well as the flight support equipment to be used by the astronauts during the fifth and final Hubble servicing mission, STS-125, on space shuttle Atlantis. Launch is targeted for Oct. 8. Photo credit: NASA/Jim Grossmann KSC-08pd2351

CAPE CANAVERAL, Fla. – Technicians in the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center help guide the Fine Guidance Sensor, or FGS, as it is lifted over the crossbar of the stand at righ More

CAPE CANAVERAL, Fla. – An overhead crane in the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center lowers the Fine Guidance Sensor, or FGS, onto the Orbital Replacement Unit Carrier or ORUC, below for installation. An FGS consists of a large structure housing a collection of mirrors, lenses, servos, prisms, beam splitters and photomultiplier tubes. There are three fine guidance sensors on Hubble located at 90-degree intervals around the circumference of the telescope. Along with the gyroscopes, the optical sensors are a key component of Hubble’s highly complex but extraordinarily effective “pointing control system.” The ORUC is one of three carriers that are being prepared for the integration of telescope science instruments, both internal and external replacement components, as well as the flight support equipment to be used by the astronauts during the fifth and final Hubble servicing mission, STS-125, on space shuttle Atlantis. Launch is targeted for Oct. 8. Photo credit: NASA/Jim Grossmann KSC-08pd2353

CAPE CANAVERAL, Fla. – An overhead crane in the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center lowers the Fine Guidance Sensor, or FGS, onto the Orbital Replacement Unit Carrier or ORUC, b More

CAPE CANAVERAL, Fla. – In the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center, the Fine Guidance Sensor, or FGS, is lifted over the crossbar of the stand. The sensor will be installed on the Orbital Replacement Unit Carrier or ORUC, below. An FGS consists of a large structure housing a collection of mirrors, lenses, servos, prisms, beam splitters and photomultiplier tubes. There are three fine guidance sensors on Hubble located at 90-degree intervals around the circumference of the telescope. Along with the gyroscopes, the optical sensors are a key component of Hubble’s highly complex but extraordinarily effective “pointing control system.” The ORUC is one of three carriers that are being prepared for the integration of telescope science instruments, both internal and external replacement components, as well as the flight support equipment to be used by the astronauts during the fifth and final Hubble servicing mission, STS-125, on space shuttle Atlantis. Launch is targeted for Oct. 8. Photo credit: NASA/Jim Grossmann KSC-08pd2352

CAPE CANAVERAL, Fla. – In the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center, the Fine Guidance Sensor, or FGS, is lifted over the crossbar of the stand. The sensor will be installed on t More

CAPE CANAVERAL, Fla. -- In the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida, a technician double-checks the channel around the circumference of the left forward center solid rocket booster segment for dirt and debris before processing continues. The booster along with its twin will be stacked on the mobile launcher platform along with an external fuel tank awaiting the arrival of space shuttle Endeavour for its flight to the International Space Station. As the final planned mission of the Space Shuttle Program, Endeavour and its crew will deliver the Alpha Magnetic Spectrometer, as well as critical spare components to the station on the STS-134 mission targeted for launch Feb. 26, 2011. For more information visit, http://www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts134/index.html. Photo credit: NASA/Kim Shiflett KSC-2010-4365

CAPE CANAVERAL, Fla. -- In the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida, a technician double-checks the channel around the circumference of the left forward center solid rocket booste More

CAPE CANAVERAL, Fla. -- In the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida, technicians stand around the left forward center solid rocket booster segment to properly position the rubber rings around the circumference. The booster along with its twin will be stacked on the mobile launcher platform along with an external fuel tank awaiting the arrival of space shuttle Endeavour for its flight to the International Space Station. As the final planned mission of the Space Shuttle Program, Endeavour and its crew will deliver the Alpha Magnetic Spectrometer, as well as critical spare components to the station on the STS-134 mission targeted for launch Feb. 26, 2011. For more information visit, http://www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts134/index.html. Photo credit: NASA/Kim Shiflett KSC-2010-4372

CAPE CANAVERAL, Fla. -- In the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida, technicians stand around the left forward center solid rocket booster segment to properly position the rubber More

CAPE CANAVERAL, Fla. -- In the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida, technicians install the rubber rings around the circumference of the left forward center solid rocket booster segment before the segments are joined. The booster along with its twin will be stacked on the mobile launcher platform along with an external fuel tank awaiting the arrival of space shuttle Endeavour for its flight to the International Space Station. As the final planned mission of the Space Shuttle Program, Endeavour and its crew will deliver the Alpha Magnetic Spectrometer, as well as critical spare components to the station on the STS-134 mission targeted for launch Feb. 26, 2011. For more information visit, http://www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts134/index.html. Photo credit: NASA/Kim Shiflett KSC-2010-4369

CAPE CANAVERAL, Fla. -- In the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida, technicians install the rubber rings around the circumference of the left forward center solid rocket booster More

CAPE CANAVERAL, Fla. -- In the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida, technicians check the channel around the circumference of the left forward center solid rocket booster segment for dirt and debris before processing continues. The booster along with its twin will be stacked on the mobile launcher platform along with an external fuel tank awaiting the arrival of space shuttle Endeavour for its flight to the International Space Station. As the final planned mission of the Space Shuttle Program, Endeavour and its crew will deliver the Alpha Magnetic Spectrometer, as well as critical spare components to the station on the STS-134 mission targeted for launch Feb. 26, 2011. For more information visit, http://www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts134/index.html. Photo credit: NASA/Kim Shiflett KSC-2010-4364

CAPE CANAVERAL, Fla. -- In the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida, technicians check the channel around the circumference of the left forward center solid rocket booster segment More

Public domain stock image. Cucumber slice hydrate, health medical.

A computer screen with a bunch of diagrams on it. Mathematics formula physics, science technology.

A blue background with a diagram of a science / A computer screen with a bunch of diagrams on it / Public domain stock illustration.

A computer screen with a drawing of a circle and arrows. Mathematics formula physics, science technology.

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A computer screen with a diagram of a triangle. Mathematics formula physics, science technology.

A diagram of the flow of the earth / A computer screen with a diagram of a triangle / Public domain stock illustration.

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A blue background with a circle and a circle / A diagram of a circle and a circle area / Public domain stock illustration.

A person sitting at a desk with a blackboard. Learn girl school, education.

A boy sitting at a desk looking at a computer screen with a blackboard and a question marks on it / A person sitting at a desk with a blackboard / Public domain stock illustration.

A black and white photo of a number of numbers. Pi circle diameter.

A number of numbers in black and white / A black and white photo of a number of numbers / Public domain stock illustration.

A blue background with a drawing of a cube. Mathematics physics formula, science technology.

A graphic of a cube with a blue background and a grid of circles and a square with a grid of squares / A blue background with a drawing of a cube / Public domain stock illustration.

A calculator sitting in front of a chalkboard. Mathematics calculator formula, science technology.

A calculator on a chalkboard / A calculator sitting in front of a chalkboard / Public domain stock illustration.

A computer generated image of a man's face. Mathematics calculation pay, education.

Stock photo: A computer generated image of a globe / A computer generated image of a man's face.

A blackboard with a chalk board and numbers on it. Mathematics physics formula, science technology.

A blackboard with numbers on it / A blackboard with a chalk board and numbers on it / Public domain stock illustration.

Public domain stock image. Mathematics formula physics, science technology.

An image of a diagram of a plane. Mathematics formula physics, science technology.

A diagram of the model of the model / An image of a diagram of a plane / Public domain stock illustration.

A computer generated image of a circle. Mathematics formula physics, science technology.

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A blackboard with some calculations written on it. Mathematics formula physics, science technology.

A blackboard with a lot of math formulas written on it / A blackboard with some calculations written on it / Public domain stock illustration.

A black and white photo of a number of numbers. Pi circle diameter.

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A calculator sitting on top of a wooden table. Mathematics calculator formula, science technology.

A calculator with a calculator / A calculator sitting on top of a wooden table / Public domain stock illustration.

A large number of numbers arranged in rows. Pi circle diameter.

The numbers of pi are arranged in a random pattern / A large number of numbers arranged in rows / Public domain stock illustration.

A person sitting at a desk with a blackboard. Learn girl school, education.

A boy sitting at a desk looking at a blackboard with a blackboard on it / A person sitting at a desk with a blackboard / Public domain stock illustration.

Stone monument art building. A man standing inside of a sculpture in a park

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A drawing of a piece of cake and a piece of pie. Mathematics formula physics, science technology.

A diagram of a pie with a pie and a tree / A drawing of a piece of cake and a piece of pie / Public domain stock illustration.

A piece of pie with a pi symbol on it. Pie pi circle.

Pi symbol on a cookie / The pi symbol on the cookie / Public domain stock photo of a food.

A computer screen with a spiral of numbers. Mathematics formula physics, science technology.

A blue background with a circle of binary numbers and a blue background / A computer screen with a spiral of numbers / Public domain stock illustration.

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Public domain stock image. Frame purple circles.

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