Stripping down science to the naked scientist with me Chris Smith the questions for you including finding out what's more accurate the speed of your

GPS or at least the speed it says you're traveling at or your car zone speedometer

we'll find out how much does the Earth weigh and how do scientists know that?

And would an aeroplane full of birds weigh less

if all the birds took off while the aeroplane was in midair?

The answers to all of those are on the way, Diana.

Thanks, Chris.

We'll also be hearing about a new technique to predict a person's age

using just a drop of blood, and why frequent flyers might also be frequent forgetters.

Jet lag affects your memory for up to a month. might also be frequent forgetters.

Jet lag affects your memory for up to a month

according to a new study that's just come out.

And in kitchen science I will be explaining why it's much harder to shape the contents of

an unopened carton compared to one that's already been opened.

Don't believe me, grab a carton and give it a shake.

I'll be back to explain what's going on later in the show.

I'm shaking my can and bottle here.

Friendsedly, Dave, in anticipation.

Thank you. If you've got any questions for us on

this week's show, we'd love to hear from you. Tweet at Naked Scientists. You can write on our

Facebook page. We've made it easy for you. you can get there by going to the naked

scientists dot com forward slash Facebook and it will do the rest or you can drop

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