Rik

want my characters to be able to visit each other but can't get them to cross the street to do so, also having trouble linking this game to facebook. riklund

I rate answers to my questions (eg best answer etc etc) but Yahoo keeps prompting me to do so and then chooses a 'top answer' for me. Any tips or ideas?

We are often told about how today's personal computers are more powerful than all of the computers together which were used to operate the 1969 moon mission. As a thought experiment only (I have no intention or qualification to do so in reality!!!) would it be feasibly possible, given adequate resources and a suitable team of computer scientists etc etc, to operate a space mission (especially a moonshot) from a single desktop computer?...or is this just a case of relating to computer memory and processing capacity?

I know how the iris of the eyes are coloured and about the hereditary nature of which eye colour is dealt to us but is there a reason WHY our irises vary in colour and if there is a reason why they are coloured at all??

I know that we have crude oil and oil rigs/refineries etc for the petrochemical industry but can anyone tell me where and how we acquired products such as petol and paraffin in the early days of motoring and related industries (around the turn of the 19th/20th century etc)?

I've just been watching a fascinating documentary about the history of the discovery of the elements which mentioned that alchemists and chemists in the 17th century spent about 50 years searching for a mystery element which they named flodgellum. This turned out to be a dead end and a mistaken identity which lead to the discovery of oxygen......have there been any other 'great mistakes' in the world of chemistry since and apart from artificial elements (eg from nuclear research etc) have there been any new elements discovered in more recent times? (ie the last 100 years or so)?

I know how they work and remember that libraries have been using them for as long as I can remember but how long have they actually been around?? cheers all, Rik

When I was in school, we were taught that no system could be 100% efficient due to factors such as friction, electrical resistance, heat loss etc etc. Could it be said that an electric heating element (eg in an electric fire, cooker, heat lamp or kettle etc) is the most efficient seeing as the purpose of the appliance is to create that which would be lost (ie heat)??

Do you still need to 'run in' a new car engine or is it done for you before you buy it these days?

I know that waterwheels were used a lot in the early years of the industrial revolution to power mills and workshops etc but were they ever used as a direct lift for materials (such as limestone etc). What I'm thinking is a waterwheel with troughs to lower the water integrally connected to scoops to lift the stone etc. Obviously the lifting scoops would have to be much smaller than the water troughs due to the difference in density between the two materials and also inefficiencies in the mechanism. I reckon that this would be practically just about possible but was wondering if any such devices actually existed in real life?