« Reply #3 on: April 04, 2016, 10:25:56 PM »
A guy I used to work with used a metal detector to find copper nuggets in Michigan's Upper Peninsula. I have no idea what kind of metal detector he had but it could tell him what kind of metal it was and I believe how big also before he dug it up. I thought that was a nice feature to have. I'm sure they're even better by now.

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""It may be laid down as a primary position, and the basis of our system, that every Citizen who enjoys the protection of a free Government, owes not only a proportion of his property, but even his personal services to the defence of it, and consequently that the Citizens of America (with a few legal and official exceptions) from 18 to 50 Years of Age should be borne on the Militia Rolls, provided with uniform Arms, and so far accustomed to the use of them, that the Total strength of the Country might be called forth at a Short Notice on any very interesting Emergency." - George Washington. Letter to Alexander Hamilton, Friday, May 02, 1783
THE RIGHT TO BUY WEAPONS IS THE RIGHT TO BE FREE - A. E. van Vogt, The Weapon Shops of Isher