How do you write the noise a tardis makes?

Surreal sight first thing in the morning. Quite a good idea really, would you be able to time travel to back before the crime had been committed and stop it happening?

Why does Doctor Who never just go back in time & put on the winning lottery numbers?

Why does spellcheck always change Tardis to Tarsus? It obviously prefers feet to sci-fi.

I need more sleep...