Cardus

Hey I wanted to write an app that would love on someone's phone and when the owner was near. BP it would buzz and link to either the Wikipedia page or a history channel - are there any IPR issues with this ?

I used to think of prehistoric communities as insular non trading tribes, but have seen some stuff about trade routes that covered moat of the connected world. how did these trade routes function without writing or currency - was it all barter ?

If I add up the dianater of all the planets in the solar system + Pluto they come to about 200km short of the distance between the earth and the moon. Is this just a coincidence or is there some sort of mass content going on ?

Well yes that was my take as well but with a published cumulative dimater of 382,367 fitting into a published space of 384,400 km that is one hell of a coincidence !