We have a separate design contract and charge a minimal amount for the work; it basically separates the serious buyers from the tire kickers. We charge $400 for a simple bathroom or kitchen design that is being done within the existing space of the home, $800 for a simple addition, and $1,200 or more for multiple rooms. The fee includes the drawings, specifications, and cost of the design work.
3 thoughts on âAlbert Richardson, a black man invented the butter churn!â. 1  thank you for this lesson in black history 2016. 2  youâre welcome. 3  You are welcome.
History of Electricity-Early Inventors. Otto von Guericke proved that a vacuum could exist. Creating a vacuum was essential for all kinds of further research into electronics. In 1660, Otto von Guericke invented a machine that produced static electricity, this was the first electric generator. In 1729, Stephen Gray discovered the principle of the conduction of electricity. In 1733, Charles Francois du Fay discovered that electricity comes in two forms which he called resinous (-) and vitreous (+), now called negative and positive.