On Dec 10, 9:42 am, Phil C wrote:
But have a look athttp://en.wikipedia.org/wiki/Critical_massandyou will
see that there are some isotopes that have a critical mass that could very
definitely fit into a briefcase. Hopefully these isotopes are not available
in Woolworths.

And if they are, they won't be much longer.

But you can probably get 50% off at the moment ;-)

You could call it a mass reduction.

*cough*

B2003