alt = A statue of young Lincoln sitting on a stump, holding a book open on his lap

alt = Head shot of older, clean shaven Lincoln

alt = A dark-haired, bearded, middle-aged man holding documents is seated among seven other men.

alt = Photo of surf breaking on rocky shore

alt = Map displaying a looping line with arrows indicating that water flows eastward in the far Southern ocean, angling north east of Australia, turning sough after passing Alaska, then crossing the mid-Pacific to flow north of Australia, continuing west below Africa, then turning northwest until reaching eastern Canada, then angling east to southern Europe, then finally turning south just below Greenland and flowing down the Americas ' eastern coast, and resuming its flow eastward to complete the circle

alt = Map showing 5 circles.

alt = Map of Caribbean showing seven approximately parallel westward-pointing arrows that extend from east of the Virgin Islands to Cuba.

alt = Animation showing the continents separating from a single mass, making creating the Atlantic in the process

alt = Animation of audio, AM and FM sine waves

alt = Apollo program insignia

alt = Astronaut Buzz Aldrin stands on the Moon

alt = President John F. Kennedy addresses a joint session of Congress, with Vice President Lyndon B. Johnson and House Speaker Sam Rayburn seated behind him

alt = Black-and-white photograph of a statue consisting of an inscribed, round pedestal on top of which sits a seated, nude, male figure of which only the legs and lower torso are preserved

alt = Tapestry image of a man on horseback holding a falcon

alt = Tapestry image of a procession of men carrying a coffin heading towards a church building.

alt = Coin image of a crowned male head with a sceptre in the background

Image: AcropolisatathensSitePlan. png | right | 600px | alt = Site plan of the Acropolis at Athens

alt = Diagram showing video signal amplitude against time.

alt = This article incorporates public domain material Bulgaria country profile ( October 2006 ) from websites or documents of the Library of Congress Federal Research Division.

alt = Black-and-white picture of heavy machinery with two operators sitting aside

alt = Graphs showing similar elution curves ( metal amount vs drops ) for ( top vs bottom ) terbium vs berkelium, gadolinium vs curium, europium vs americium

alt = Sequential layers of spheres arranged from top to bottom: GRGBGRGB ( G = green, R = red, B = blue )

alt = A diagram showing a chain transformation of Uranium-235 to Uranium-236 to Barium-141 and Krypton-92

alt = Branching diagram listing distinguishing characteristics, including mouth, snout, fin spines, etc.

alt = A diagram illustrating the configuration of Mir's docking node over the station's lifetime.

alt = diagram of silhouette of Red-throated Loon in flight

alt = Schematic diagram of source and load circuit impedance

alt = A diagram with the side view of two aircraft in different attitudes demonstrates the airflow around them in normal and stalled flight.

alt = A schematic diagram of two beakers, each filled with water ( light blue ) and a semipermeable membrane represented by a dashed vertical line inserted into the beaker dividing the liquid contents of the beaker into two equal portions.

alt = Schematic stick diagram of a tetrameric potassium channel where each of the monomeric subunits is symmetrically arranged around a central ion conduction pore.

alt = Schematic diagram of automatic transformer

alt = Schematic diagram of basic matching network

alt = Schematic diagram of the Ultimate Transmatch

alt = Schematic diagram of original Ultimate Transmatch circuit

alt = Schematic diagram after the first of four transformations

alt = Schematic diagram after two transformations

alt = Schematic diagram after three transformations

alt = Schematic diagram after four transformations

alt = Schematic diagram of pi-network antenna tuner

alt = Schematic diagram of SPC antenna tuner

alt = Sectional diagram of a foil bearing, showing the component parts ( inner, moving outwards ) of the shaft journal, a smooth top foil, the bump foil ( both foils joined ) and finally the bearing housing.

alt = a diagram of LEDs turning on and off, making the pattern of a snake

alt = A diagram shows twenty-four white boxes, representing levels, arranged to show the possible progressions through the game.

alt = A diagram of a gliding lizard

alt = Block diagram of the SGWT

alt = Blue subway-line diagram, listing stations