At their closest recorded distance apart, which was 34.8 million miles, it would take 182 seconds (just over three minutes). At their maximum possible distance apart, which is 250 million miles, it would take approximately 22 minutes for the signal to reach Mars.
video on the cost of concrete floors depending on the level of complexity concrete floors can cost as little as $ 2 to $ 6 a square foot or be as expensive as $ 15 to $ 30 a square foot
Greg Demmert, with Demmert & Assoc. in Los Angeles, installs polished concrete along the West Coast in both residential and commercial locations. For a fairly smooth floor, that requires only a few levels of grinding, Demmert says $3 sq. ft. is the basic cost for a polished concrete floor.Itâs more difficult to get a consistent look using a smaller machine,â he explains about residential floors, âso the typical cost range is $6-$12 sq. ft.â. Each area of the country, along with each contractor is likely to offer different price points for the various levels and designs for polished concrete.