Einstein developed a theory about space. And it was about time too.
She had a photographic memory but never developed it.
The Risks of Anal
The Risks of Anal A woman went to her doctor for advice. She told him that her husband had developed a penchant for anal se*, and she was not sure that it was such a good idea  'Do you enjoy it?' The doctor asked.  'Actually, yes, I do.'  'Does it hurt you?' he asked.  'No. I rather like it.'  'Well, then,' the doctor continued, 'there's no reason that you shouldn't practice anal se*, if that's what you like, so long as you take care not to get pregnant.'  The woman was mystified. 'What? You can get pregnant from anal se*?'  'Of course,' the doctor replied. 'Where do you think politicians come from?"
Did you hear about the urologist who became an aerospace engineer?
He developed an incontinental ballistic missile.