How Stuff's Made
An in-depth look at the incredible stories and manufacturing processes behind everyday products.

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Season 4
  • {S}04.{E}11: Military Knives, Surfboards, Mattresses, Guacachips
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    S04.E11: Military Knives, Surfboards, Mattresses, Guacachips

    How do they make knives sharp enough for the army; how do they shape a surfboard; and how can a crisp hold dip?
    Duration: 21 Min
    Watch Until: 27/03/2019
  • {S}04.{E}12: Semiconductors, Banjos, Stainless Steel Pans, Oil Paints
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    S04.E12: Semiconductors, Banjos, Stainless Steel Pans, Oil Paints

    What's hidden in a pan to help it absorb heat; and why does colour have to be squeezed into paint?
    Duration: 21 Min
    Watch Until: 27/03/2019
  • {S}04.{E}13: Bottlecans, Acoustic Guitars, Lighters, Buckeye Candies
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    S04.E13: Bottlecans, Acoustic Guitars, Lighters, Buckeye Candies

    How can you tell how a guitar was made from the sound it makes when it is played; and how is peanut butter put in chocolate?
    Duration: 22 Min
    Watch Until: 28/03/2019
  • {S}04.{E}14: Fortune Cookies, Bike Frames, Work Boots, Fishing Lures
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    S04.E14: Fortune Cookies, Bike Frames, Work Boots, Fishing Lures

    How do they fold fortune cookies without breaking any; why are racing bikes fast; and what is in a fishing lure?
    Duration: 21 Min
    Watch Until: 28/03/2019
  • {S}04.{E}15: Bowling Balls, Power Tools, Mouth Guards, Harmonicas
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    S04.E15: Bowling Balls, Power Tools, Mouth Guards, Harmonicas

    Why are bowling balls heavy; how does a mouth guard keep its shape; how do they wire power tools; and how does a harmonica work?
    Duration: 21 Min
    Watch Until: 29/03/2019
  • {S}04.{E}16: Jellybeans, Snowboards, Pliers, Motorcycle Jackets
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    S04.E16: Jellybeans, Snowboards, Pliers, Motorcycle Jackets

    How do they make jelly beans; what makes a snowboard speedy; and how do they make motorbike jackets tough?
    Duration: 21 Min
    Watch Until: 29/03/2019
  • {S}04.{E}17: Episode 17
    Leaving Soon

    S04.E17: Episode 17

    Why is a racing driver needed to build a racing car seat; can a sock be sewn from a single strand of yarn; and how does a tiny carabiner secure the lives of climbers?
    Duration: 21 Min
    Watch Until: 30/03/2019
  • {S}04.{E}18: Episode 18
    Leaving Soon

    S04.E18: Episode 18

    How do they caramelize toffee apples; how do they twist climbing rope; what's mechanical about a mechanical pencil; and how do they make kitchen sinks hard to crack?
    Duration: 21 Min
    Watch Until: 30/03/2019
  • {S}04.{E}19: Episode 19
    Leaving Soon

    S04.E19: Episode 19

    How do you make a water bottle that you never throw away? What is the best wood for a pool cue? How do they make snowshoes? How do you make a toy tractor look like the real thing?
    Duration: 21 Min
    Watch Until: 31/03/2019
  • {S}04.{E}20: Episode 20
    Leaving Soon

    S04.E20: Episode 20

    How can a bolt hold up a building; how do they make the colours in neon signs shine brightly; and how can tape secure the patient bay of an ambulance?
    Duration: 21 Min
    Watch Until: 31/03/2019
  • {S}04.{E}21: Episode 21

    S04.E21: Episode 21

    How do they make 70,000 pies a day; how do they squeeze eight and a half metres of copper into a set of headphones; and how does a potters' wheel spin a bowl into shape?
    Duration: 21 Min
  • {S}04.{E}22: Episode 22

    S04.E22: Episode 22

    How can a nail hold a house together; why is an electric current used to cut steel into a microphone; and how is a volleyball net tied? Find out.
    Duration: 22 Min
  • {S}04.{E}23: Episode 23

    S04.E23: Episode 23

    How do you make a kitchen knife that stays sharp? How do you sculpt a long tube of glass into hundreds of tiny perfume vials? And, how do they turn cocoa beans into chocolate?
    Duration: 21 Min
  • {S}04.{E}24: Episode 24

    S04.E24: Episode 24

    How do they turn plastic into artificial turf that looks like grass? How do they make anchors that can secure large boats? And what goes into a sleeping bag to keep you warm?
    Duration: 21 Min
  • {S}04.{E}25: Episode 25

    S04.E25: Episode 25

    How can a steel block improve your golf game? What is the secret to fitting nine separate tools into a pocketknife? And, how is rubbish turned into paper towels?
    Duration: 21 Min
  • {S}04.{E}26: Episode 26

    S04.E26: Episode 26

    Why is denim dyed green before it is used for blue jeans? How can a small spring support a building during an earthquake? And how can 'goo' make you a better golfer?
    Duration: 21 Min
  • {S}04.{E}27: Episode 27

    S04.E27: Episode 27

    What is the difference between a corn and a flour tortilla? How do you turn plastic into a plank that can replace a piece of wood? And, what puts the flex into a pair of skis?
    Duration: 22 Min
  • {S}04.{E}28: Episode 28

    S04.E28: Episode 28

    What makes a light bulb light up? How can a little spring adjust a mattress to help you get a good sleep? And what really happens when you click a computer mouse?
    Duration: 21 Min
  • {S}04.{E}29: Episode 29

    S04.E29: Episode 29

    Why does a padlock only open with the right key? How does a circuit board identify the information you type into a computer? And what maximises the strength of a fishing rod?
    Duration: 22 Min
  • {S}04.{E}30: Episode 30

    S04.E30: Episode 30

    What is hidden inside money to set it apart from counterfeit notes? How is a watch built to keep perfect time? And what is the quickest way to build a piece of custom furniture?
    Duration: 22 Min