Woo! Diet tiles:O) I should buy mum some for Christmas!

I'm going to plant one of these. In addition, I'll put all the wires I've ripped out of the house, during a rewiring session, into the compost bin. Later in the year, I can spread the electrical compost around the base of the solar power tree and it will grow and grow. Soon I'll need a different blade on the chainsaw to control the thing!

Being a HV engineer, I know the mess that oil can make. It's not fun, especially if you're sent in to fix something! Imagine in a datacentre full of air - to swap something in the middle you - have a coffee - wonder over - replace the thing - have another coffee. In one filled with oil, you - look at the floor in dissmay - shut the whole centre down - drain all the oil (into a tank the same size as the data centre) - vent the atmosphere for several hours - put on protective gear - wade about in whats left of the oil - replace the thing - climb out - have 4 showers and still smell of oil - fill the centre back up with oil and finally turn it back on. Basically, with air you get coffee twice. With oil, you get no coffee. Not good, not good at all!

Meh, this is nothing. A mere 75W! You should see a 200kA lightning strike from 5m away. Roughly 20MW of actual light output. These guys do it every day - www.culham.com

And slowly it collapses into a black hole...