Transformer

A transformer is a device used for converting the voltage of...

DC motor

DC motors consist of a permanent magnet and a coil within the...

Alkaline batteries

In alkaline batteries electric current is generated by...

How does it work? - Record player

This animation demonstrates the mechanism and operation of record...

How does it work? - Air conditioner

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

Қағаз жасау

Қағаз жасаудың құпиясы адамзатқа екі ғасырдан артық уақыттан бері...

How does it work? - Escalator

This animation demonstrates how an escalator works.

Telescopes

This animation shows optical and radiotelescopes used in...

Fuel cell

A fuel cell provides environment-friendly electric energy produced...

The evolution of data storage

The capacity of data storage devices have increased at an...

Observatory

Observatories are often built at high elevations to minimise the...

How does it work? – Tower crane

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

Two-stroke engine

A two-stroke engine is a type of internal combustion engine with a...

Measuring time

The first calendars and time-measuring instruments were already...

Optical instruments

A wide variety of optical instruments are in use today, ranging...

Types of bridges

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

Types of gears

Two meshing gears transmit torque during their rotational motion.

How does it work? – Cinema projector

This animation demonstrates the design and operation of a...

Medieval Arab water pump (Al-Jazari, 13th century)

The ingenius water pump designed by Al-Jazari is a great example...

How does it work? - Electric steam iron

This animation demonstrates how electric steam irons work.

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