Like others here, I'm deeply impressed by our selfless search for knowledge and - what? - ambience? rather that setting out to make a profit.
For myself, I'd like to cheat by three years and be in Aboukir to see Nelson break the French line at the Battle of the Nile. On to be in Gibraltar to see the fleet set off for Trafalgar and so to the Rainhill Trials, visit the Great Exhibition and be at Cape Canaveral to see the Apollo mission set off for the moon.
Amazingly enough, they never met, so I'd like to engineer a meeting between Nelson and Wellington at dinner and just sit and listen. Whilst in that era, a couple of Harrison chronometers would be nice, as would a brace of Joe Manton hexagonal barrel pistols.
Around 1860, I'd like to register a patent that covered every option for both two and fourstoke engines , beating Otto to the punch. I would then make it freely available to anyone who wanted to use the principals involved as Otto and the Crossley Brothers so fiercely defended their rights as to hold back serious ICE development for a generation.
Not entirely devoid of self-interest, I'd like to buy a couple of mothballed Spitfires from the airfield that my father used to visit (he worked for Roneo) in 1949 when you could pick them up for £100 and bid at a couple of ex government auctions when they were selling off the end-of-contract Merlins that - except for test hours - had never run. Twenty five quid a go they were and even then the tag end of the batch were pushed down a mineshaft in Derbyshire as landfill because they couldn't sell 'em.
I'd find my dad in 1955 and give him the £250 he had - but would not spend - on the "entirely useless" blower Bentley that languished on a car lot five miles from here for months. A frequenter of the pits at Brooklands in the twenties, he'd have absolutely loved it!
And finally, I'd like to search out my younger self and give me the money to buy the Brough Superior SS100 Black Alpine, the Vincent Series A Rapide, the Excelsior Manxman, '59 Manx Norton and '38 Mk VIII cammy Velo, all of which I was offered during the late sixties, but could not (or would not!) afford.
There, I can die 'appy now!
Regards,
Kim Siddorn