German WWII ramjet engine blueprint
German WWII ramjet bomber blueprint
Cannon diagram and tables, 1669
Cross section of a V-type engine.
神風
Lavater's physiognomy, 19th century
Proximity fuze, diagram
Fission bomb designs
Thermonuclear warhead
Nuclear blast and radiation effects
Blower-scavenged, two-stroke-cycle engine with uniflow scavenging, displaying both upstroke and downstroke.
Four types of gasoline engines: opposed-piston engine, rotary engine, in-line engine, and V-type engine.
The gasoline carburetor is a device that introduces fuel into the airstream as it flows into the engine.
Diesel engine equipped with a precombustion chamber.
The sequence of events in a four-stroke diesel engine involves a single intake valve, fuel-injection nozzle, and exhaust valve.
Esnault-Pelterie airplane engine, 1900s
Plan of the Battle of El Alamein
Deperdussin monoplane, historical diagram
German Komet, WWII rocket-powered aircraft, illustration
German coastal batteries in France during WWII, illustration
American P-38 Lightning WWII fighter aircraft, illustration
Fighter jets intercepting UFO, illustration
Fighter jet intercepting UFO, illustration
UFOs and fighter jet, illustration
A-10 Thunderbolt attack aircraft, illustration
Industrial diesel engine, illustration
Nuclear bomber in flight, illustration
The four strokes of a four-stroke cycle engine - intake, compression, power, and exhaust. Only the intake stroke delivers power.
An internal-combustion engine goes through four strokes: intake, compression, combustion (power), and exhaust.
Typical gasoline engine cooling system.
Typical gasoline engine lubrication system.
German WWII fighter on airfield, illustration
Duplex engine distribution, illustration
Benz engine distribution, illustration
Gas engine piston, illustration
Cockerill gas engine, illustration
Gasification unit, illustration
Brayton carburettor, illustration
Daimler carburettor, illustration
Renault car ignition, illustration
Brasier car engine, early 20th century
Peugeot car engine, early 20th century
Knight car engine, early 20th century
Open turbine water flow, illustration
Closed turbine water flow, illustration
Hercule-Progres turbine, illustration
Wind turbine, illustration
Arm and flag semaphore alphabets, illustration
War map of Dresden, Germany
War map of Cologne, Germany
Cross section of a crystal microphone.
Pluto and the Kuiper belt
Apollo mission profile for a lunar landing and return, outlining the various stages along the mission.
First World War bombing, illustration
Focke Achgelis Fa 223 Drache helicopter, illustration
Graphite pile for nuclear reactor, 1940s
Philippe Lebon, French engineer
Connectivity in military equipment, conceptual illustration
Otto gas engine, illustration
Montgolfier hydraulic ram, 18th century
Bollee hydraulic ram, 19th century
Mekarsky compressed air engine, 1870s
Airlift pump, 19th century
Laser Interferometer Space Antenna (LISA), a Beyond Einstein Great Observatory, is scheduled for launch in 2015
Military air forces isometric set with intercontinental ballistic missile stealth bomber fighter attack helicopter interceptor vector illustration
Bohr atomic model
World map centred on North Pole, 1756
Bourcart ornithopter design, 1866
Blood alcohol concentration
Electron shell
Four main types of estuaries: A) salt wedge estuary, B) partially mixed estuary, C) vertically homogeneous estuary, D) fjord.
The process of cell division by mitosis.
The endoplasmic reticulum plays an important role in the biosynthesis, processing, and transport of proteins and lipids.
Human arterial supply and venous drainage of the organs.
Average exchange of energy between the surface, atmosphere, and space, as percentages of incident solar radiation.
Diagram of a wave system depicting typical divergence and convergence distributions for non-tilting and tilting systems.
General patterns of atmospheric circulation over an idealized Earth with a uniform surface and the actual Earth.
The onset and retreat of the West African monsoon with respect to the timing of the direct rays of the sun.
Electromagnetic spectrum. The visible range (shaded portion) is shown enlarged on the right.
The Michelson interferometer measures the effect on the speed of light of the motion of the ether through which light travels.
Basic components of an electrochemical cell.
Automotive-type lead-acid battery, a storage battery that holds its charge for a long time and can be recharged.
Relationships of endocrine glands, from the pituitary-hypothalamus system to the vertebrate endocrine glands and their hormones.
Phylogeny based on differences in the protein sequence of cytochrome c in organisms ranging from Neurospora mold to humans.
Three types of natural selection, showing the effects of each on the distribution of phenotypes within a population.
Evolutionary history of the globin genes. The dots indicate the duplication of ancestral genes, giving rise to new gene lineage.
U.S. space station Skylab (occupied 1973-74), shown with docked Apollo Command and Service modules.
The steps involved in the engineering of a recombinant DNA molecule.
The relationship between hot springs and epithermal veins.
When monochromatic light passes through two narrow slits to illuminate a screen, it creates a pattern of bright and dark bands.
When monochromatic light passing through a single slit illuminates a screen, a characteristic diffraction pattern is observed.
The mechanical components of a compound microscope.
Image formation in a microscope, according to the Abbe theory.
The components of a scanning electron microscope (SEM).
The components of a transmission electron microscope (TEM).
The diffusion of water across a semipermeable membrane.
The diffusion of potassium cations across a semipermeable membrane.
Changes in ion permeance underlying the action potential.
Diagram depicting the process of atoll formation. Atolls are formed from the remnant parts of sinking volcanic islands.
A cross section of Earth's outer layers, from the crust through the lower mantle.
Differentiation of the external genitalia in the human embryo and fetus.
Moon interior
Asteroid distribution
Venus's middle and lower atmosphere
Pluto-Charon mutual eclipses
Jupiter's atmosphere
Near-Earth objects
Uranus's orbit
Speedometer
Spring balance
Second World War Operation Dragoon, illustration
French anti-revolutionary 'Le Choan', 1830s satire
Lalande's Moon map, 1772
Claudel carburettor, illustration
Bucket water wheel, illustration
Blood-letting, 17th century
Boyle's experiments on air, 1669 artwork
Heydon's New Astrology, 1786
V-2 rocket missile and launcher, illustration
Keep Mum, World War II poster
Luftwaffe map of London, UK
戦闘機
Causes of death in the Crimean War
First World War naval mine, illustration
Bombing test from an airplane, illustration
Balloons bombing Venice, 1849
Aeroplane of Baron von Richthofen, illustration
Member of the French Resistance, illustration
Gunner firing a cannon, 16th century
Zeppelin R Class, illustration
Philadelphia Experiment, illustration
A illustration of the invariance of the speed of light, one of the postulates of Albert Einstein's theory of special relativity.
World War II Japanese naval aircraft, illustration
Oliver Cromwell, Lord Protector, Commonwealth of England
15th century ship
George Washington, first US president
Ironclad warship USS Monitor, drawing
Martin Frobisher, English explorer
Sir James Clark Ross, British explorer
Sir John Franklin, British explorer
Andrea Doria, Genoese admiral
Hannibal mounted on a war elephant, 218 BC
Drake's attack on Santo Domingo, 1586
Vichy France, illustration
Military Air Force Isometric Flowchart. Military air force isometric flowchart with dotted lines and bomber cruise missile interceptor awacs and others names vector illustration
Military air forces airmen units armed equipped for special combat ground operations isometric composition background vector illustration
Set of Military Aircraft Vector Illustrations. Military aircraft set. Fighter jet, bomber, interceptor, reconnaissance, spy helicopter vector illustrations set isolated on white background. Army flying machine. For military aviation concepts
Military Resources Army Icons Set. War Ammunition. Military resources army icons set. War and ammunition, trunk airplane vehicle submarine army and bullet, ammo weapon, inventory gun, rocket and bazooka, automatic and launch, war ship. Vector
Set of Military Aircraft Vector Illustrations. Military aircraft set. Fighter jet, bomber, interceptor, reconnaissance, spy helicopter vector illustrations set isolated on white background. Army flying machine. For military aviation concepts. Set of Milit
Military Air Force Isometric Icon Set. Military air force isometric icon set airplanes and helicopters with different types colors sizes and purposes
Parachute Icon
Parachute Icon design
Women's work during World War I
Campbell petrol engine, illustration
Gardner petrol engine, illustration
Brouhot petrol engine, illustration
Boudreaux-Verdet engine, 1900s
Philippe Petain, French general
3d Military Boats Composition. Isometric 3d military boats composition with cut piece of sea with a submarine and a boat vector illustration
Death and the Lansquenet, 16th century
Artillery rocket design by Siemienowicz, 17th century
Scottish clan chief, 19th century
Artist's impression of the Oort Cloud
Diagram showing interior of Jupiter
The weather model of meteorologist Edward Lorenz.
Aurora Australis
Light waves matching the orientation of the molecules of a polarizing filter are absorbed, reducing the intensity of the light.
Uniformly accelerated motion; s = speed, a = acceleration, t = time, and v = velocity.
In Ptolemy's geocentric model of the universe, the Sun, Moon, and each planet orbit a stationary Earth.
The artery wall and the ultrastructure of the smooth muscle cells within it.
The age of Earth's oceanic crust, as measured in millions of years.
An illustration representing Isaac Newton's equation for reconciling different frames of reference, x' = x - vt (t equals time).
Approaching the speed of light, an object appears shorter, with a longer time interval, relative to its intervals when at rest.
The 4-D space-time continuum is distorted in the vicinity of any mass, depending on the mass and the distance from the mass.
Diagram of a mammalian muscle spindle.
Valley and mountain breezes
Pythagorean theorem, illustration
Internal structure of Earth, illustration
Birth of Galaxies
Role of serotonin in the digestive system
Acne, artwork
Internal ear, artwork
Blood vessel formation, artwork
Ascites, artwork