One classroom in my school had a roller-blackboard installed over a fireplace. It was tricky, but not impossible, to squeeze in behind it and if you could write upside down, add annotations to what the teacher had written on the side facing the class.

Though it (correctly) identifies it as a nemertea a few lines later.

I can't see the attraction - having installed equipment in many Ladbrokes bookies (a large UK chain), what I remember the most is the sort of punters - and that put me off forever.

29, then 36. Allegedly I have very poor colour vision; both times I've been tested the optician has said I'm in the bottom 1% of the population. In one case he said he'd never met anyone with such poor scores on the Ishihara test.
I rarely notice any effects of this "deficiency". I suspect it ain't deficient, just different.

We built one with the nursery children at the local school. They loved it - though it needs a good haircut twice a year to keep it useable.

Just been discussing the Koeran War with our son - he's been watching M*A*S*H all week - he even managed to find it without the laughter track, which makes it even funnier.
Hard to remember it's that long ago - I vaguely remember the Vietnam War, my childhood drawings were of fighters with streams of fire coming from them. His youth was Sept 11th and the following conflicts, though since the way we use telly had changed so much in the intervening years I don't think he was as aware of it as I was of Vietnam.

Modern motors and control systems are so powerful and light that you can make almost anything fly.
Fun, though!

Keith Richards' is pinched from Spike Milligan's gravestone, though it's in Irish on account of the church not wanting it in English.

Aaargh - dropping microphones. Please - don't do it, they're sensitive and expensive.

Having grown up near Orpington, I think I'd rather stay in the loo.

Thanks for that - one of the most satisfying things I've seen for ages.