Silhouette of factory structure against dramatic sky with clouds moving past

Close up of mouth opening and DNA swab taken from inside the cheek with a cotton bud

Graphic patterns of a DNA sequence in blue and green dots as seen on a computer screen.

Row of Pipettes attached to machine filling test tubes up with orange liquid in a DNA testing laboratory

Close up of pipette inserted into labelled test tube and slowly extracted

Close up of two flasks side by side in a laboratory. One containing resuspended sediment and the other bearing a "danger radioactive" label.

Pregnant woman lying in hospital bed having three dimensional scan, doctor operating new ultrasound equipment on the woman's stomach. Small screen shows the baby moving in the womb during the sonogram.

Oxford, England: Forensic laboratory technician looking into electronic microscope

Close up of a centrifuge spinning rapidly in a laboratory.

Close view of Arctic explorer Jim McNeill carrying out environmental tests at the Canadian Arctic - shows close view of McNeill's hands in protective clothing turning large hand drill then camera pans up to show his face

Medium shot of a scientist in a lab pouring sediment-filled water into sample bottles.

Two firefighters in protective clothing and helmets gripping and pulling large water hose slowly moving forward towards fire, firemen may be taking part in training exercise

Medium shot of a scientist in a laboratory running tests on sediment samples. The scientist man is wearing a white lab coat.

Close shot of hands (wearing surgical gloves) slowly extracting swab from test tube.

Various views of lab analysts wearing white coats preparing white liquid sample in a beaker, samples in flasks and analysts doing tests and looking at computer and working with lab equipment.

Laboratory technician in DNA laboratory wearing white protective clothing (lab coat) and purple gloves, working with criminal evidence using tweezers.

Close shot of Ultrasound scan of unborn baby

Close up of substance injected into test tube with bunsen burner flame seen in background

Close view of large hand drill in foreground spiralling downwards into ice (as part of global warming test) against backdrop of snowy landscape with stationary boat in background

A Forensic Scientist wearing protective clothing examines evidence in laboratory looking through microscope, close shot of hands in purple gloves turning microscope knob

Close up of mouth opening and DNA swab taken from inside the cheek with a cotton bud

Close view of credit card machine (point of sale terminal) sitting on glass desk as finger types in pin code on keypad and shop assistant takes machine and removes card

Close view of credit card machine (point of sale terminal) sitting on glass desk as hand, painted with nail varnish, inserts Barclays credit card into front of machine

Close up of mouth opening and DNA swab taken from inside the cheek with a cotton bud

Two shots showing silhouette of factory structure against dramatic sky with clouds moving past

Side view of female laboratory technician, with hair in bun and wearing green scrub top, using microscope in laboratory for In Vitro Fertilization (IVF) treatment, close shot of eye looking down microscope and of hand turning knob

Close up of pipette inserted into labelled test tube, camera zooms out to show lab worker working at desk containing bunsen burner and test tubes in rack