Assorted LEDs
Electronic diode
Timing chip
Timing chips
Capacitors
Circuit board with LEDS
Light dependent resistor
Light dependent resistors
Potentiometers
Thermistors
Light-dependent resistor
Buzzer
LED lamp on optical bench
Hand lens
Digital stopclock
Digital stopwatch
Resistors
Gyroscope
Gyroscope balancing on a wire
Hydrometer
Types of resistor
Transistors
Linear potentiometer
Rotary potentiometer
Simple circuit with motor
Microscope
Variable resistance box
PCB potentiometer
Hair straighteners
Circuit board with capacitors
Electromagnetic spectrum, green led
Blue-white LED
LEDs and wires
LEDs on circuit board
Circuit with bulb and switch
Cross polarized filter
Motor effect experiment
Simple motor
Distillation equipment
Distillation apparatus
Potentiometer and sliding key
Fibre optic and needle
Fibre optics and needle
LED bulbs in factory, close up
Neodynmium magnets
Magnets with a small compass
Potentiometer jockey
Simple machines
Soil moisture and light meter
Soil pH meter
Magnetising a needle
LEDs, close-up
LED chip
Light emitting diode
Measuring the force between two charges
Charged sphere in an electric field
Slide wire potentiometer
Eye anatomy model
Digital colorimeter
Digital colorimeter with cuvettes
Graduated pipette
Plastic pipette
Magnets
Immiscible liquids
Calculator
Photodiode
Cycle lamps with a filament bulb and LEDs
Simple light bulb circuit
Conductivity of a salt solution
Conductivity of aluminium
Conductivity of a glass rod
Conductivity of a metal spoon
Zero-centre ammeter
Circuit board with capacitor
Simple machine
DC motor commutator end cap
Bourdon pressure gauge
LED light
Container of the chemical element germanium
Measuring jug and bulb pipette
Electronic laboratory water bath
Magnetic field from an electric current
Bicycle dynamo
Copper-silver metal displacement reaction
Light microscope
Human eye model
Light refraction with biconvex lens
Light dispersion experiment
Concave lens
Visible light spectrum
Optics of near-sightedness
Optics of camera with no lens
Digital colorimeters with cuvettes
LED light strip, macrophotograph
Portugal, Lisbon, Pedestrian light, red light
情報処理と基盤
ハードディスクと基盤
集積回路と基板
Laboratory glassware
Magnetic repulsion
Magnetic attraction
Mirror reflecting torchlight
Ruler vibrating
UV light showing bacteria on hand
UV light showing bacteria on hands
UV light showing bacteria on keyboard
Fibre optics
Copper
Malachite and copper
Organic light emitting diode, artwork
Energy
Photodiodes
Digital multimeter
Reed switch
Close up of a stationary electric motor
Rotating electric motor
Electrical transformer coils
Loudspeaker and microphone
Using a 'makeshift' calorimeter
Pulley system
Dipping magnet in iron filings
Guitar strings
Newton's cradle
Slinky spring
Coulombmeter
Ultrasound detector
Voltmeter
Rheostat
Clinometer
Battery and steel wool
Electrostatic attraction
Wave diffraction
Wave interference
Multipurpose meter shunts
Weighing an apple
HiFi loudspeaker