Ewen

I have the photo, but cant remember WTF I was up to. '76 I think.

Not unless the gearbox was fitted with one of these... http://www.marunda.com.sg/power/trolling-valve

Was it that long ago ? Crikey time flies...unless its on a treadmill.

I've always loved this stuff since a kid. Why wood floats yet ships made of wood can sink, why steel sinks yet boats made of steel can float and so on. The principles are all the same, including the one that explains why the concrete block dangling off the crane above the water weighs less when its under the water.

I didnt say the barges were the same size.

Four barges this time... Four giant tanks of water, each with a barge floating in them. Tank 1 has a barge made of wood in it. Tank 2 has a barge made of aluminium in it. Tank 3 has a barge made of steel in it. Tank 4 has a barge made of lead in it. Each tank is exactly the same size. Each tank contains the same amount of water. Each barge weighs say, 400 tonnes. Which tank has the highest water level ?

I think you all have it now... Its all about density. In this case density of the barge and concrete relative to the density of water. The barge weighs 300 tonnes say, and its carrying 100 tonnes say, of concrete blocks. The barge floats.... so the density of each cubic metre of barge hull volume thats under the water must be the same as the density of each cubic metre of the water it floats in. Assuming the density of the water is 1 tonne per cubic metre, the barge and its load of concrete is displacing 400 cubic metres of water. The concrete blocks dont float, as we know their density is far higher than 1 tonne per cubic metre. Once the concrete blocks are off the barge and into the water, the cubic volume of 100 tonnes of concrete is now displacing far less than the cubic volume of 100 tonnes of water. So, overall, once the concrete is not being supported by a floating barge, less volume of water is being displaced and the water level in the tank will fall.

Thought I'd lost the plot there for a minute.

My posts are disappearing !

Density is the key to the answer. I've edited the wording of the puzzle to give a further clue.

Can be any size of tank, any size of barge, any number of concrete blocks.

It was one of mine. Closed now. Theres a barge floating in a giant tank of water. The barge is carrying some large blocks of concrete. The barge weighs 300 tonnes, the concrete blocks together weigh 100 tonnes. The barge cranes the concrete blocks out of the hold, and lowers them into the water alongside it. Does the water level in the tank now rise, fall or stay the same ?

That wasn't staged much now was it. Good acting though.

205 1.9 GTi wheels ?

Foster Middle English, possibly derived from a foster-child, or foster-parent, or a corruption of forester, which means either scissor maker, woodworker or keeper of a forest. Or, possibly, 'one who has wood'.

Ewen Variant of Ewan, which itself is a variant of Eoghan, which is possibly a variant of Eugene. Various meanings are listed... 'Well born' 'Young warrior' 'From the yew' Celtic / Gaelic origins.

Love 'em.

It varies I'm afraid. But it should be clearly marked on your title deeds...'T's should be marked on the boundary lines, the leg of the 'T' on your side indicates a boundary thats yours.

I've read it. I had to. I had to go to church too. I had to be a christian when I was a kid. I was told to be by adults. Thankfully, I grew up.

My dad didn't believe in Jehova, or any other God for that matter. So at his funeral, it was a surprise for me (and I'm sure for him too) to hear some random chap at a lectern state that Jehova had taken him. Bollocks, basically.

Almost as mad as your Old Lip of Death.

Wrong way round surely.

Agreed...love these quizzes. Unfortunately, I did crap at this one. Just not up on the current buzz. I've learned a lot, thanks.

Happy Birthday DB.

I didn't know you were a Dollar Daz. Let yourself go lately haven't you ?