For Sale

The advertisement read simply:

"For Sale. One cat in a box. Might be dead, might not. Interested ?
Then contact Erwin Schr?dinger on Austria 1-9-3-5."

Often regarded as one of the most famous thought-experiments in Natural
Sciences, the "Schr?dinger's Cat" exercise was in fact actually
executed by its creator Erwin Schr?dinger using a silver tabby called
Rutherford which was sealed in a stout cardboard box along with a
radioactive source , a radiation detector, a phial of cyanide , a bowl
of milk and a handful of pilchard-flavoured KatzenKrunch
biscuits.

As if to prove the point of his theorem, Schr?dinger did not want to
ever open the box. However, Frau Schr?dinger, fearing the potential of
the twin terrors of radiation poisoning and the whiff of a dead cat,
made him sell the whole setup as a job lot.

The advertisement shown above appeared in the small ads column in the
December 20th edition of the popular "Vienna Bystander"
newspaper.
It is understood that Schr?dinger never received any monetary offers
for his goods, settling instead to trade with a German naval commander
for an accordion and a budgerigar called Adolf.