Question for weight lifters...

[ffutures]

How accurate are the weights of weight disks? E.g., if one is marked as 1.25kg, what's the margin of error?

They look to be a LOT cheaper than the weights that are usually sold for physics, and the Olympic style ones are a fairly convenient shape, round and flat with a centre hole and a grip cut-out at one edge. They don't seem to sell them in 1kg size, unfortunately, but one supplier is offering 8 x 1.25kg for about £18 plus delivery, which seems pretty good value.

Comments

[ffutures.livejournal.com]

The school's expanding, so we may eventually offer metalwork as a separate subject, or some sort of engineering course at A-level, but I doubt it'll be any time soon. It's supply and demand, I'm afraid, and a bit of a chicken and egg thing - it costs vast amounts of money to resource something like metalwork, so nobody does it unless there's a lot of demand, And if the course isn't on offer there's unlikely to be much demand...

Meanwhile D&T does cover quite a lot of manufacturing, CAD-CAM, etc, but mostly with wood and plastics rather than metals.