At the start of our service today I said that the theme of our service is Travelling Light. And we’re going to think a bit more about that now. But to get us started here’s a joke for the scientists among you.
A photon walked into a hotel and asked, “Can I have a room for the night?”
“Certainly, sir,” said the man behind the desk, “Do you have any luggage?”
“No,” said the photon, “I’m travelling light!”
If you’re not a scientist, and don’t understand the joke, it might help you to know that a photon is an elementary particle which is the quantum of the electromagnetic field and the force carrier for the electromagnetic force – it has no mass and travels at the speed of light. Or it might not!
Today we’re thinking about travelling light.
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