Parachute Brain Freeze


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Parachute

Doctor Knowles and Professor McCork get to the bottom of life's questions. McCork and Ms Hucklebuck are in the sky as they ask 'How does a parachute work?'.


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It's only a parachute jump, it's only a parachute jump...

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You're in safe hands, McCork,

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I'm a qualified instructor, remember?

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It's only a parachute jump...

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That's it, McCork, stay calm and focused, just like we practised.

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All systems checked and ready to go, Ms Hucklebuck.

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Roger that!

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We're cleared for take off!

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It's only a parachute jump...

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-TANNOY:

-All passengers, please, prepare for takeoff.

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Hang on, we're doing a parachute jump!

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Aaargh!

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We're live in the sky in five, four...

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This is Brain Freeze!

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With Dr Knowles,

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Professor McCork...

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..Colin, the floor manager

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and Ms Hucklebuck!

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Stand by!

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Come on, everybody!

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Welcome to Brain Freeze, sky-dive special!

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It's time for...

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Today we're going to find out first hand, how does a parachute work?

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When an object is falling from the sky,

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the force of gravity pulls it towards Earth.

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The size and shape of the object itself

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provides some air resistance, or drag,

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but this can be significantly increased by using a parachute.

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When opened, a parachute creates a large surface area

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which increases the air resistance and causes the object to slow down.

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And what are they used for?

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Other than eejits like us jumping out of planes.

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Apart from sky-diving, parachutes are also used in

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humanitarian missions, space exploration

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and even in resistance training by athletes.

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You're all set to jump, Ms Hucklebuck.

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In your own time!

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Roger that! To see how a parachute works live,

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join us after the break!

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And we're clear!

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Now, paint yourself a nice picture, McCork.

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It's just a big, soft, safe airplane.

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A big, soft, safe airplane.

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With huge, cuddly wings, carrying you high

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above the safe, fluffy clouds.

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Huge, cuddly wings. Safe, fluffy clouds.

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Ready to jump, McCork?

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Jump! I forgot we had to jump!

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I never signed up for this!

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BELL RINGS

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Hold on tight, McCork!

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We're going live on air, in the air

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in three, two, one...

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Aaaaaah!

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Now, let's see how a parachute works in real life.

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When in freefall, a skydiver can

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fall to Earth at speeds of over 190kph.

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Can we open the parachute?

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When the downward force of the skydiver's weight

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equals the upward force of the air resistance,

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we call this Terminal Velocity.

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How about now, maybe?

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Anyone?

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Once the parachute is opened, the sky-diver's descent

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is slowed down significantly.

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Hello? Parachute? Falling through the sky!

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Oh, yes! I knew there was something I was forgetting!

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And they float back to Earth at the much safer speed of about 17kph.

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Ah, this is much better. I could get used to this.

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-Can we do it again?

-See you next time!

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And we're clear!

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-More tea, McCork?

-A splendid idea, Ms Hucklebuck.

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So is this what they mean by high tea?

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Ha-ha-ha! Good one, Ms Hucklebuck!

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Well done, McCork!

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You got there in the end!

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I took your advice, Colin.

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There's nothing like a nice cup of tea to calm your nerves.

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Well, usually the tea comes after you've landed, but whatever works!

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What? Landed? You mean back on the ground?

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I forgot we had to land!

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No, I never signed up for this!

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Aaah!

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This is nice once you get used to it!

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I think I can see my house from here.

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More tea, Ms Hucklebuck?

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Milk?

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Brain Freeze!

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Professor McCork and Ms Hucklebuck are coming live from the sky as they ask 'How does a parachute work?' Back in the studio, Colin and Doctor Knowles have the task of getting them down safely but these things are never straightforward when McCork is involved!