Arrow Sign Collection (page 5)

Illustration of stellar cycle, material discarded by mature star becoming part of cloud that in turn

Illustration of planet orbiting sun, moving faster when nearer the sun

Illustration of crop rotation cycle

Illustration of collapsed section of the Earths crust forming rift valley

Illustration of folds forming in the Earths crust

Illustration of unmagnetized steel bar, and magnetized steel bar with bar magnet being stroked acros

Illustration of time dilation experiment, clock keeping time by detecting reflected light pulses on

Illustration of lever with fulcrum at one end, effort at the other, and load in the middle

Illustration of pulley system with three wheels

Illustration of pulley system with one wheel

Illustration of submarine sinking and rising through the use of compressed air

Illustration of lever with effort exerted in the centre, fulcrum at one end and load at the other

Illustration of lever with fulcrum between the effort and load

Illustration of vacuum experiments, flame being extinguished in a vacuum, sound being muted in a vac

Illustration of buoyant raft, sinking raft, and buoyant ship

Illustration of differential gearing on a car wheel

Illustration showing sailing boat tracking wind direction

Measuring a window

Illustration showing how satellite in space communicates with radar, commercial aircraft, ships, and

Digital illustration of human brain and information from left side of visual cortex receiving information from right visual field

Cross section illustration of extracting aluminium from bauxite using Bayer process and electrolysis

Digital illustration of human brain and mapping of visual field onto retina matching arrangement of data on surface of visual cortex

Digital illustration of same side processing of smell from nostril to human brain

Digital illustration of head in profile showing dorsal and ventral pathways of brain

Digital illustration of human brain with sound entering via brain stem and thalamus to auditory cortex

Digital cross section illustration of impulses passing from nearer cochlea nucleus to lateral superior olive

Digital illustration of Hypocretin System in human brain with Hypothalamus highlighted in blue, Locus Coeruleus and Raphne nuclei in green

Digital illustration of of human nervous system

Digital cross section illustration of localization of source of sound in human brain

Digital illustration of nerve signal moving along membrane as wave of depolarization and repolarization

Digital cross section illustration of hypothalamus triggering chain reaction of reduced hormone production resulting in falling glucose levels

Digital illustration of head in profile showing motor cortex (pink), frontal area and amygdala (green), auditory cortex (orange), and visual cortex in brain

Digital illustration of reward pathway in human brain

Digital illustration of human brain associated with full awareness

Digital illustration of areas of information highlighted in human brain

Digital illustration of unconscious and conscious pathways in human brain passing through thalamus ending in parietal lobe of cortex

Digital illustration of direction of dopamine flow, nucleus accumbens, basal ganglia and ventral tegmental area highlighted in human brain

Digital illustration of head in profile showing memory areas of brain

Rossby or planetary waves in atmosphere

Illustration of a fly landing, putting its front legs up over its head, then grabbing hold of the surface and flipping its body upside down

Illustration of satellites orbiting around the Earth

Illustration of Apollo 11 making its return journey from Moon back to Earth

Illustration of agricultural flat roll reducing tilth to finer crumb

Illustration showing weather depression forming with warm air rising over cold air

Illustration of formation of weather chart where warm, tropical air meets cold, polar air forming a depression

Illustration showing formation weather depression where cold air moving under warm air with front splitting into two

Illustration of ploughing soil using harrow

Illustration of rotary cultivator

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