How does it work? - Air conditioner

An air conditioner cools the air inside by drawing heat away and releasing it outside.

How does it work? - LCD screens

A liquid-crystal display utilises the light modulating properties of liquid crystals.

How does it work? - Differential gear

A differential allows the driven wheels of a car to rotate at different speeds when the car is turning.

How does it work? – Tower crane

Tower cranes are machines used for lifting loads weighing up to several tonnes.

How does it work? – Cinema projector

This animation demonstrates the design and operation of a traditional cinema projector.

How does it work? – Escalator

This animation demonstrates how an escalator works.

How does it work? - Plasma display television

This animation explains how a plasma display television works.

Observatory

Observatories are often built at high elevations to minimise the effects of atmospheric turbulence

The evolution of data storage

The capacity of data storage devices have increased at an incredible rate during the past decades.

Two-stroke engine

A two-stroke engine is a type of internal combustion engine with a cycle of only two (power) strokes.

Mesopotamian inventions (3rd millennium BC)

These tools, revolutionary even in their simplicity, are still in use today.

Optical instruments

A wide variety of optical instruments are in use today, ranging from microscopes to telescopes.

Desktop computer

This animation demonstrates the structure and most important peripherals of desktop computers.

Measuring time

The first calendars and time-measuring instruments were already used by ancient Eastern civilisations.

Types of bridges

Types of bridges include beam-, arch-, suspension-, cantilever and truss bridges.

Types of gears

Two meshing gears transmit torque during their rotational motion.

How does it work? - Ballpoint pen

The invention of the ballpoint pen made writing a lot easier.

Water turbine, generator

Water turbines convert the kinetic energy of water into electric current.

Telescopes

This animation shows optical and radiotelescopes used in astronomical observation

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