Comparison Collection (page 24)

Table of mathematical functions
Mathematical functions. A table comparing various simple curves from calculus with elliptical and hyperbolic curves from the analysis of conic sections

Arctic ice retreat, artwork
Arctic ice retreat. Maps showing the area covered by ice (white) in the Arctic in 1980 (left) and 2007 (right). This shows the marked reduction in Arctic ice between the two dates

Enceladus size comparison, artwork
Enceladus size comparison. Computer artwork of Enceladus (centre) in front of the Earth and next to Earths moon (right), showing their comparative sizes

Jupiters moons and the Earth, artwork
Jupiters moons and the Earth. Computer artwork of Jupiters four largest satellites laid out above the Earth and its moon, showing their comparative sizes

Earth, Pluto and the Moon, artwork
Asteroid Ceres and Earth. Computer artwork showing the comparative sizes of the Earth (left), Ceres (middle) and the Moon (right)

Atomic force microscopy methods, artwork
Atomic force microscopy methods. Artwork showing the methods of operation of an atomic force microscope and a graph of the results on different surfaces

Television screen technology, artwork
Television screen technology. Artwork comparing two forms of flat-screen television technology. At left is a field emission display (FED) screen

Effects of grazing by red deer. On the left is an area on which red deer (Cervus elaphus) are allowed to graze. Here the plants are small and low-lying

Comparing light bulbs, thermogram
Comparing light bulbs. Thermogram comparing an energy-efficient fluorescent light bulb (left) with an incandescent light bulb (right)

Beech leaves, light micrograph
Beech leaves. Light micrograph of a transverse section through two beech leaves (Fagus sylvatica). The shapes of the two leaves are different because the bottom leaf is constantly exposed to bright

Ideographs, artwork
Ideographs. Diagram showing Egyptian, Mayan, Native American and Easter Island ideographs. An ideograph is a graphic symbol that represents an idea

Chloride chemistry

pH measurement of oxide solutions
pHs of oxide solutions. Aqueous solutions of the oxides of some elements with universal indicator (UI) added to show their pH (acidity). The element forming each oxide is labelled

Evaporation residues from distilled water (left) and hard water (right). Distilled water has had all its ions removed. Hard water contains dissolved mineral salts

Transition metal compounds. These have intense colours because of the electronic structure of transition metals, and the hydration of most of the compounds with water

Leaf chlorophyll deficiency. Healthy leaf (left) and a leaf suffering from chlorosis (right). This is a condition where lack of chlorophyll (a green pigment found in leaves)

Abnormal thistle stem, light micrograph
Abnormal thistle stem. Light micrograph of a normal (top) and abnormal (bottom) stem of the perennial sow thistle (Sonchus arvensis). The abnormal stem has grown in a flattened, or fasciated, manner

Copper oxides on watchglasses. The colours show the difference in oxidation state of the copper in copper (I) oxide (Cu2O, red) and copper (II) oxide (CuO, black)

Manganese compounds on watchglasses. The colours and appearance show the difference in oxidation state of the manganese in potassium manganate (VII) (KMnO4, lower left), manganese (IV) oxide (MnO2)

Annular solar eclipse. Montage image of the sun (white) during an annular solar eclipse, showing the varying position of the moon (black) as it passes in front of the sun and out again

Starlight changes in a night sky. Montage of images showing the changing colours and light intensity produced by stars at different times of night

Annular solar eclipse. Montage image of the sun (white) during an annular solar eclipse, showing the varying position of the moon (black) as it passes in front of the sun and out again

Period 3 elements. From left (in their periodic table order) they are: sodium (Na); magnesium (Mg); aluminium (Al); silicon (Si); phosphorus (P)

Solar eclipse. Montage image of the sun (white) during a solar eclipse. The black shapes show the varying position of the moon at it passed in front of the sun, from top left to bottom right

Total solar eclipse. Image of the sun during a total solar eclipse on 29th March 2006. The black lines show the varying position of the moon at it passed in front of the sun

Chlorine and oxygen. Gas jars filled with chlorine (Cl2, left) and oxygen (O2, right) gases. These gaseous chemical elements are made up of diatomic molecules

Plant comparison. Artwork showing an example of each of the two subclasses of flowering plants: a dicotyledon (left) and monocotyledon (right)

Alzheimers disease, artwork
Alzheimers disease. Computer artwork of a vertical (coronal) slice through the brain of an Alzheimer patient (left) compared with a normal brain (right)

Primate skulls, 19th century artwork
Primate skulls. 19th century artwork of a human skull (top) and those of four different primates, showing the anatomical differences

Rainbow over the Millennium Bridge, Gateshead, Tyne and Wear, England, United Kingdom, Europe

Domestic Dog, Great Dane, adult and puppy

BMW M3 Germany German

Chamberlain and the proposed corn tax
A satire on Joseph Chamberlains speech at Bingley Hall, where he produced two loaves (here babies, farmers and tea cups) to illustrate the impact of the proposed corn tax on the size of a loaf

Olympia Hall, Kensington, London, 1886
Engraving showing the exterior of the Olympia Exhibition Hall, London, 1886. At that time the official name of this building was the National Agricultural Hall, Addison Road, Kensington

Safety saddle
Advertisement from 1888 for Champion & Wiltons Safety Side-saddle offering the advantage of a straight sitting position and comfort, in comparison to the old style of side-saddle (illustrated)

A rare, aerial view of a Blue whale (Balaenoptera musculus) surfacing near whale-watching boat in the fjords
Heimir Har ar / SplashdownDirect

A rare, aerial view of Blue whales (Balaenoptera musculus) surfacing near whale-watching boat in the fjords
Heimir Har ar / SplashdownDirect

Urine analysis
MODEL RELEASED. Urine analysis. Generalpractice doctor comparing a multiple test stick(Multistix) to its reference chart. The test stickhas been placed into a sample of a patients urineto test for a

Two Steam-Plough Systems
Comparison of two separate methods of ploughing using a steam engine. Howards system (top) and Fowlers (below), with Hornsbys traditional animal-mounted plough between

Morals / Virtue & Vice
Virtues and vices: (1) nobility (2) anger and accidie (3) envy

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"Exploring the Vastness: Comparing Sizes of Solar System Planets" Marvel at the sheer scale of our celestial neighbors as we compare the sizes of planets in our solar system. From the colossal gas giants to the petite rocky worlds, witness a visual journey through space that will leave you awestruck. "A Delicate Balance: Rocks Balancing on Driftwood by the Sea" Nature's artistry comes alive as rocks delicately balance atop driftwood against a backdrop of serene waves. This captivating scene reminds us of nature's ability to find harmony even in seemingly impossible circumstances. "Unraveling Our Origins: Homo Erectus, H. Sapiens, and H. Neanderthalensis" Delve into humanity's evolutionary past as we compare ancient hominid species - from Homo erectus to Homo sapiens and Homo neanderthalensis. Discover how these fascinating beings shaped our history and ponder their similarities and differences. "The Stellar Spectacle: Exploring Stars' Spectral Class and Luminosity" Embark on an astronomical journey through different stellar classes and luminosities with a mesmerizing diagram. Uncover the diverse range of stars that illuminate our universe, each with its own unique characteristics. "Contrasting Cathedrals: Coventry's Old Shell Meets Modern Marvel" Witness architectural evolution in action as Coventry's old cathedral shell stands juxtaposed against its modern counterpart. Reflect upon how time has transformed this sacred space while preserving its historical significance. "Dive into Prehistoric Depths: Megalodon vs Great White Shark Comparison" Plunge into prehistoric waters where two apex predators reign supreme - Megalodon versus Great White Shark. Explore their jaw-dropping size disparity and marvel at nature's ability to adapt over millions of years. "The Evolutionary Icon: Volkswagen VW Golf GTi MkI & Beyond" Celebrate automotive excellence as we trace the iconic Volkswagen VW Golf GTi's evolution from its MkI inception to the present day.