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Johann Friedrich Miescher Portrait of the Swiss biochemist Johann Friedrich Miescher (1844-1895) the discoverer of DNA (deoxyribonucleic acid) Mies
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Explosive manufacture Illustration of the apparatus used to make nitroglycerine the explosive which earnt Swedish inventor Alfred Nobel his fortune
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Magnesium sulphate Polarised light micrograph of crystals of magnesium sulphate (MgSO4) a chemical used medicinally and in the textile industry Thi
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Top view of the cap of the Fly Agaric mushroom Amanita muscaria The red colour of the cap and its white dots serve as warning colours as this is a t
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Boyles laboratory Engraving of the laboratory of Robert Boyle (1627-91) British chemist The laboratory contains various furnaces and vessels for s
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Engraving of Theodor Schwann (1810-82) German biologist After completing his medical training in 1834 Schwann went into research Almost immediatel
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Alchemy Alphabet ACID (Acidum) VINEGAR (Acetum) MEOF vyn egre sour wine Latin vinum (wine) acer (sour); eq (Greek) (in Ukra
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Igneous rock Granite
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Container of the food additive E541
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Resin harvest
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Johannes Nicolaus Broensted (1879-1947) the Danish physical chemist Broensted qualified in chemical engineering in 1897 and then in chemistry in 19
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Genetically modified crop Resea- rcher studying genetically modified rape plants in a field Rape (Brassica napus) is grown mainly for its oil Gen
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Genetically modified crop Researcher studying genetically modified rape plants in a field Rape (Brassica napus) is grown mainly for its oil Genet
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Human genome research Technician removing frozen cell lines from cryostorage for the human genome project The cells contain human DNA (deoxyribonu
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Human genome research Technician removing frozen cell lines from cryostorage for the human genome project The cells contain human DNA (deoxyribonu
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Human genome research Technician removing frozen bacterial cultures containing fragments of human DNA from cryostorage This is part of the human g
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Artificial alum crystals Alum is the term given to crystallized double sulphates They are soluble in water have an astringent acidic taste and cry
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Titration experiment Student using digital weighing scales to measure the mass of citric acid crystals to be used in a titration experiment Weighing
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Soil pH meter in a plant pot A pH meter shows the alkalinity or acidity of a substance Farmers and gardeners use these meters to assess a soils sui
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Acid-base titration Image 3 of 3 Titrations are a method of volumetric analysis in which a volume of one reagent is added to a known volume of anot
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Human genome research Researcher preparing DNA for replication for research for the human genome project The machines here replicate DNA to workab
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Human genome research Researcher preparing DNA for replication for research for the human genome project The machines here replicate DNA to workab
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Human genome research Researcher preparing DNA for sequencing for the human genome project using a multi-channel pipette DNA (deoxy- ribonucleic a
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Human genome research Researcher preparing DNA for sequencing for the human genome project using a multi-channel pipette DNA (deoxy- ribonucleic a
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Genetic research Researcher using a binocular microscope to view a culture of genetically engineered cells Genetic engineering is the process of a
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Genetically modified crop View of a field of genetically modified rape (Brassica napus) Rape is mainly grown for its oil Genetic modification of a
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Acid-base titration Image 1 of 3 Titrations are a method of volumetric analysis in which a volume of one reagent is added to a known volume of anot
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Ethanoic acid
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Illustration of the pH scale with corresponding acidic or alkaline values for common substances foods and household chemical
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Illustration of litmus liquid and litmus paper results from tests in solutions with acidic alkaline and neutral pHs
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Genetically modified crop View of a field of genetically modified rape (Brassica napus) Rape is mainly grown for its oil Genetic modification of a
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Genetically engineered fruit Conceptual computer illustration of a fruit with the external structure of an apple and the internal structure of a toma
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Genetically engineered tomatoes Conceptual computer illustration of a tomato (Lycopersicon esculentum) being injected with a syringe Genetic enginee
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Cell storage tanks View of a room of storage tanks for genetically engineered cells These tanks are also incubators keeping the cells at the optimu
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Human genome research Vessels containing yeast cultures incorporating human DNA fragments for the human genome project The human DNA is present in y
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Human genome research Gloved hand removing frozen cell lines from cryostorage for the human genome project These cells contain human DNA (deoxyribo-
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Litmus test for pH illustration
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Bottle and pellets of sodium hydroxide
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Teapot with ingredients for ginger tea
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recipe for a tea beverage with lime and ginger
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Human genome research Gloved hands holding a tray containing part of the human genome The 384 wells each hold a different fragment of cloned DNA It
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Human genome research Hand holding one of the 60 trays which contain the entire human genome as 23040 different fragments of cloned DNA DNA (deoxyr
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Human genome research Hand holding one of the 60 trays which contain the entire human genome as 23040 different fragments of cloned DNA DNA (deoxyr
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DNA sequence Multiple exposure image of several rows of letters representing the base sequence of a strand of DNA (deoxyribonucleic acid) DNA is the
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Fly Agaric (Amanita muscaria) mushroom photographed in the New Forest Hampshire Amanita muscaria is a toxic fungus closely related to the Death Ca
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False-colour scanning electron micrograph of etched glass The textured surface appears frosted to the naked eye The effect is achieved using a corro
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Propyl gallate antioxidant food additive molecular model Atoms are represented as spheres with conventional colour coding hydrogen (white) carbon
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Perfluorooctanesulfonic acid (perfluorooctane sulfonate PFOS) persistent organic pollutant molecular model Atoms are represented as spheres with co
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Propyl paraben preservative molecule Used in food and cosmetics Stylized skeletal formula (chemical structure) Atoms are shown as color-coded circl
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Albumin Computer artwork of a molecule of albumin the most abundant protein in human blood plasma The atoms in the molecule are represented as sphe
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Polarised light micrograph of crystals of vitamin B12 (cyanocobalamin) a substance necessary for the synthesis of nucleic acids and the maintenance o
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Polarised light micrograph of crystals of vitamin B12 (cyanocobalamin) a substance necessary for the synthesis of nucleic acids and the maintenance o
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Lipase Computer artwork of a molecule of lipase This is a type of biological catalyst (or enzyme) which is involved in the metabolism of fatty subst
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Lipase Computer artwork of a molecule of lipase This is a type of biological catalyst (or enzyme) which is involved in the metabolism of fatty subst
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Linoleic acid Computer model of a molecule of linoleic acid an omega-6 essential fatty acid Atoms are represented as spheres and are colour- coded;
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LSD (lysergic acid diethylamide) psychedelic drug molecule Stylized skeletal formula (chemical structure) Atoms are shown as color-coded circles hy
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radiation icon
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Lecithin Polarized light micrograph of crystals of lecithin Lecithin is a group of substances containing fatty acid residues in which usually one a
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Acid-base titration Image 2 of 3 Titrations are a method of volumetric analysis in which a volume of one reagent is added to a known volume of anot
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Acid and alkali Bottles of sulphuric acid and sodium hydroxide or caustic soda (an alkali or base) solutions Acids are substances which produce an e
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Dyspepsia Coloured X-ray of the human stomach showing gastro-oesophageal reflux (heartburn) highlighted with a barium meal The sac-shaped stomach (b
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Pernicious anaemia Light micrograph of a blood smear in a patient suffering from pernicious (megaloblastic) anaemia This anaemia is caused by defici
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Patrick McGovern Dr Patrick McGovern an archaeo- logist at the University of Pennsylvania Museum with a pottery jar used to store the worlds most
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Lavoisiers chemistry book Title page of Elements of Chemistry (1789) the book by Antoine Laurent Lavoisier (1743-1794) that is considered the found
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Geber (c722-c815) Arabic chemist coloured historical artwork Geber is the latinised version of the Arabic name Jabir ibn Hayyan Geber is sometim
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Residues of the worlds oldest wine Pottery jar fragment with residues (black) of the worlds oldest wine The fragment has been labelled by the arch
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Kidney Artwork of a longitudinal section through a human kidney The functions of the two kidneys are to excrete urine and to regulate water electro
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Tooth decay Scanning electron micrograph (SEM) of the surface of a decaying molar tooth The surface enamel (white) has begun to break down (for exam
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Tooth decay Rotten teeth and receding gums of a patient suffering from dental caries and periodontal disease Caries is the decay and crumbling of th
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Tooth decay Close-up of the rotten upper molar teeth of a patient suffering from dental caries Caries is the decay and crumbling of the teeth It is
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Tooth decay (dental caries) in the mouth of a 71- year-old man Caries is the decay and crumbling of the teeth It is caused by the bacteria in plaque
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Tooth decay Coloured scanning electron micrograph (SEM) of plaque bacteria (brown) in a cavity in a decaying tooth Plaque is a sticky substance made
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Tooth plaque (Fourth of four images) Coloured scanning electron micrograph (SEM) of plaque on the surface of a tooth Plaque the main cause of tooth
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Tooth plaque Coloured Scanning Electron Micrograph (SEM) of plaque on the surface of a tooth Plaque the main cause of tooth decay is seen here as
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Tooth plaque (Second of four images) Coloured scanning electron micrograph (SEM) of plaque on the surface of a tooth Plaque the main cause of tooth
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Tooth plaque (Image 1 of 4) Coloured scanning electron micrograph (SEM) of plaque on the surface of a tooth Plaque the main cause of tooth decay a
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Tooth decay Coloured Scanning Electron Micrograph (SEM) of a hole (a cavity) in a tooth caused by tooth decay The cavity is seen as a depression (at
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Evening primrose capsules These capsules filled with oil from the evening primrose (Oenothera sp) are a popular supplement They contain the fatty
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