Paper discs?

Something I regularly need is absorbent paper discs for bacteriology experiments. We usually make them by punching holes in filter paper, but most hole punches are 6mm, we could really do with something a little bigger, e.g. 10mm.

Looking on eBay, all of the paper punches on offer seem to be complicated shapes or 15mm or bigger circles, which is too big for our needs. Anyone know of a source for 10mm punch? Preferably not the ones you hit with a hammer though, they usually damage the discs.

(no subject)

Following on from something robertprior said about health and safety guys thinking that science in schools = danger, here's a list of school lessons and locations. See if you can put them in order from most to least dangerous before looking behind the cut:

Stairs, corridors, cloakrooms
Classrooms
Toilets
Laboratories and workshops
Sports and PE
Playground
School fields and grounds
Other

( and the winner is )

Draw your own conclusions.

Postal prices

I forgot to post this here, apologies if you've already seen it on my sites or ffutures_news

Postal prices revisited

Royal Mail prices will be rising on April 4th. For several years the extra price I've charged for customers overseas (£1.00) has been well below the actual cost of postage. Unfortunately this is now reaching a point where I must either raise prices or reduce the contribution I give to charity.

As of April I'll be applying the following charges for postal customers.

Forgotten Futures first registration or FF CD-ROM (two mailings)
UK - no change
Europe - £1.50 (up £0.50)
USA, Canada, Australia, Japan, etc. - £2.00 (up £1.00)

FF Charity CD-ROM or FF registration renewal (one mailing)
UK - no change
Europe - £1.00 (no change)
USA - £1.50 (up 50p)

Please note that none of these charges apply to downloads, which are cheaper for everyone!