How does a Thermos know how to keep hot things hot and cold things cold?

Today I'm going to use a jug just to show you all. Let's get a bit of that poo in there.

And so plastic comes from oil, so I phoned up BP and spent a good half an hour trying to convince the PR office at BP that it would be fantastic for them if they flew me to an oil rig and let me have a jug of oil.

If you had to walk a mile for a jug of water every day, as millions of people do, it's unlikely you'd use that precious water to bathe. Young entrepreneur Ludwick Marishane tells the amazing, funny story of how he invented a cheap, clean and convenient solution DryBath, the world s first bath substituting lotion.

And at that minute, you felt at one with the universe one with that jug of water, one with every human being, one with the Creator and you felt you were in the presence of power, of awe, of the deepest love, the deepest sense of compassion and mercy that you have ever experienced in your lives.