It's a double guest special, an actual double guest special.

We'll talk to a visual effects artist, all about the science behind what you see in the movies.

Also, in a sec, we'll chat about why ear tickling can stop you from growing up.

No, I'm not sure either. But it's an expert and I'm happy to have my mind blown.

Also, we'll hear about the largest bee in the world and next we'll get the secret of why

slugs die. That's happening in a sec. First, let's catch up with our gadget genius. This is

Technomumum's Technom's connected world.

We're buying some of those smart light bulbs,

the one you can turn on and off using an app on your phone,

even when you're not in.

These will come in handy when we go to Grands

so we don't come back home to a dark house.

Yeah, a few clicks on my phone,

and let there be light! On the way home,

mum was telling me how smart technology is becoming super popular with all these new gadgets

for our homes. If a smart gadget knew what time I left work, using the sat-nav in the car,

it could work out when to switch on the heating so it's nice and warm at home when I arrive. And did you know that you can get smart fridges now?

A smart fridge? Like one that's been to university?

Not quite. A smart fridge can keep a log of what's inside by recording what's gone in and out as you use stuff up.

And because it could talk to the cloud, that's the internet, I suppose it could go online and order more of your

favourite food. Just think we'd never run low on ice cream again. Brilliant! Hmm, and knowing what

you've got in the fridge, it could use the internet to find out what recipes you could make

...