Abstract :
ANYONE WHO has ever tinkered with an invention in their garage will be aware of the problem of having an interested neighbour, friend or ´expert´ come round to offer their help or, worse still, their opinion. All the put-upon inventor can do is shrug off such interferences, quietly reminding themselves that the invader of their garage has absolutely no understanding of what it is they´re trying to do and will be proved spectacularly wrong in the long run. This was exactly the situation in which Dr Gerhard Fisher found himself in 1931. The only problem was that the ´expert´ who had turned up in his garage was Albert Einstein.
