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Hi, welcome to Science Fiction. I'm Dr Knowles. | 0:00:05 | 0:00:08 | |
And I'm Prof Mike McCork, from County Cork! | 0:00:08 | 0:00:11 | |
Today's question, please, BUD E? | 0:00:11 | 0:00:14 | |
Oh, bear with me there, love. | 0:00:14 | 0:00:16 | |
Ah, today's question comes from Dennis in Ennis... | 0:00:16 | 0:00:20 | |
Very common question. | 0:00:23 | 0:00:25 | |
Snot occurs when your nose creates a gooey substance known as mucus. | 0:00:25 | 0:00:29 | |
This gooey stuff, it's like a face lava, if you like. | 0:00:29 | 0:00:32 | |
Imagine there's a volcano inside your nose | 0:00:32 | 0:00:35 | |
and then it just erupts - bang! | 0:00:35 | 0:00:38 | |
-Now, this mucus... -Or snot. | 0:00:38 | 0:00:40 | |
-This mucus... -Or booger. -Professor! -Ah! | 0:00:40 | 0:00:42 | |
Now, this mucus is mostly made up of water | 0:00:42 | 0:00:44 | |
but also contains salt, proteins and carbohydrates. | 0:00:44 | 0:00:48 | |
Its main job is to protect you from invaders. | 0:00:48 | 0:00:50 | |
These include germs, dust, pollen... | 0:00:50 | 0:00:53 | |
Flies, burglars, Vikings, other people's fingers, tennis balls... | 0:00:53 | 0:00:56 | |
Skip to the next bit, Professor. | 0:00:56 | 0:00:59 | |
Ahem! Now we all know that snots can be delicious, don't we? | 0:00:59 | 0:01:02 | |
But they are full of all sorts of unpleasant stuff | 0:01:02 | 0:01:05 | |
-so you should only eat them in moderation. -Urgh! | 0:01:05 | 0:01:08 | |
You should never eat them! It's totally gross! | 0:01:08 | 0:01:11 | |
O-M-G. | 0:01:13 | 0:01:15 | |
Anyway, Dennis, producing snot is a normal and vital bodily function - | 0:01:15 | 0:01:20 | |
not a sign that your brain is melting. | 0:01:20 | 0:01:22 | |
Sure, that's just a load of old science fiction! | 0:01:22 | 0:01:25 | |
Anyone got a hanky? I've made a right mess. | 0:01:27 | 0:01:30 |