Great Moments In Science - With Dr Karl Kruszelnicki

When a balloon pops, sometimes it leaves lots of small fragments of rubber, and sometimes it leaves just a couple of larger pieces. What's going on?

Hard, soft, smelly or blue - there's a cheese for every occasion. But is it time to rethink our relationship with this delicious dairy product?

Easter Sunday can fall in March or April, but the date is definitely not random.

Clothing is made of threads, which are made of smaller-still fibres. And that's where the dirt hides.

Until recently, scientists couldn't work out how a washing machine actually lifted the dirt out of clothes.

Tobacco has done bad things for public health — but what about e-cigarettes?

Planets going rogue and abandoning their star to wander the galactic hood could actually be pretty common.

Rogue planets drift freely through our galaxy, rather than orbiting around a star — and researchers estimate there could be billions in the Milky Way alone.

Barcodes look deceptively simple, but it took 25 years - and two episodes of Great Moments in Science! - to get from that lightbulb moment on a beach to the first barcode and scanner at a checkout.

The story of the barcode has everything - from gangsters to newborns and a whole lot of sand.

If that image is creeping you out, you could have trypophobia.

When you pick up a seashell and hold it to your ear, why can you hear the sound of the ocean?

Why do some people get headaches from eating ice-cream or drinking something very cold

We're all just one small rock away from extinction.

Everybody needs good planetary neighbours. But who is our closest?

Want to look good? Put your left face forward.

Is a mobile phone getting in the way of your relationship?

Are you aware of all the crafty tricks fast food retailers use to keep you coming back for more?

Would using a larger fork lead to you eating more food, less food, or just the same amount?

A hiccup cure that really works — if you're brave enough.