Do You Know?

October 2017
14:00

November 2, 2016

4.0 4 x
Maddie goes for a drive in the car. She uses a special microscope camera to find out how car brakes work. An animation shows how the brake pedal is connected to the brake discs and pads and how they move to slow down and stop the car. Next, Maddie visits a factory to see how a car is made from a large roll of steel sheeting. She uses special cameras to show how robots work with people to put the different parts of the cars together.
14:00

November 1, 2016

4.0 1 x
Maddie is at a shopping centre. She uses special cameras to find out how an escalator works to move people from one floor to another. An animation shows the hidden cogs and chains inside the escalator which make the steps move.
March 2017
14:00

October 25, 2016

Expired 4.0 1 x
Maddie looks at musical instruments. She uses a special slow-motion camera to find out how a piano works and how the keys on the piano are attached to levers and hammers. She shows how the strings inside the piano vibrate to produce musical notes. Next, Maddie visits a factory to see how a drum is made from lots of thin wooden sheets pressed together and shaped in a circular mould. She uses a special camera to see how the drum is given its shiny finish.
14:00

October 24, 2016

Expired 3.0 1 x
Maddie explores the house. She uses a special camera and animation to see how a key works inside a lock and shows how the hidden barrel and pins inside the lock work, to allow the matching key to unlock it. Next, Maddie shows how sand is made into glass. She visits a glass-blowing workshop to see how sand is turned into molten glass and then worked by the glass-maker into a brightly coloured glass vase.
14:00

September 23, 2016

Expired 3.0 5 x
Maddie visits a building site. She uses a special camera to see how a big crane works to move heavy objects from one place to another. An animation shows how the hydraulic mechanism, hidden inside the boom arm, enables the crane to extend high into the sky. Next, Maddie visits a factory to see how bricks are made from clay, shaped by rectangular moulds, and then fired in hot kilns for several days to make them strong.
14:00

September 21, 2016

Expired 3.0 2 x
September 21, 2016 of the TV-show Do You Know? was broadcast by CBeeBies on Sunday 5 March 2017 at 8:35.
February 2017
14:00

September 19, 2016

Expired 3.0 4 x
Maddie explores some favourite foods. She uses a special slow-motion camera to find out why popcorn pops. An animation shows what popcorn is made of and how a water droplet hidden inside each kernel of corn expands as it is cooked, making it pop. Next, Maddie visits a pasta factory to see how flour is mixed with water and turned into pasta dough and how special cutters are used to create different pasta shapes.
14:00

September 20, 2016

Expired 3.0 3 x
Maddie is out and about exploring different ways to travel. She visits an airfield and uses a special camera to find out how the rotor works to help make a helicopter fly. An animation shows how changing the angle of the rotor blades makes the helicopter go forwards and backwards. Next, Maddie visits a workshop to see how a tricycle is constructed from a big box of parts and to see how the tricycle can be adapted to suit a user's needs.
14:00

September 22, 2016

Expired 3.0 3 x
Maddie is in the bathroom. She uses a special underwater camera to find out how a toilet flush works and why it makes a gurgling sound. An animation shows how the float ball and plug work together to refill the cistern after it has flushed. Next, Maddie visits a toilet factory to see how toilets are made from clay and how robots spray the toilets with a special paint to make them waterproof and shiny.
14:00

September 14, 2016

Expired 3.0 3 x
Maddie visits a hospital. She uses a special light to see the blood vessels under her skin and finds out how a blood pressure monitor works to check that blood is flowing freely around our bodies. Maddie then visits the plaster room and shows how a cast is made by having one put on her arm. She uses a special microscope camera to reveal how the fibreglass strands are woven together to make the cast strong.
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