Glass harmonica the result would be musical cacophony. This modification also made it much harder to make the glass "speak", and muffled the sound. In 1975, an original armonica was acquired by the Bakken Museum in Minneapolis and put on display, albeit without its original glass bowls (they were destroyed during shipment). It was purchased through a musical instrument dealer in France, from the descendants of Mme. Brillon de Jouy, a neighbor of Benjamin Franklin's from 1777 to 1785, when he lived in the Paris suburb of Passy. Some 18th- and 19th-century specimens of the armonica have survived into the 21st century.
Swedish field artillery (early 18th century) regimental field artillery, but for more strategic purposes. The artillery during the early 18th century was developed further by Carl Cronstedt. He combined the powder and projectile into one single thin wooden cartridge called "geschwinda" shots (fast shots) and thereby succeeding in increasing the firing power to 10-12 rounds per minute. In addition, he increased the explosive power of the projectile itself. The range of the 6 pounders was 600–700 meters and the 3 pounders 225 meters. Screws and aiming devices, invented by Christopher Polhem, were introduced and used to aim and adjust the elevation of the pipe. To drag