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
Concrete Leveling Costs. As a rule of thumb, concrete leveling or concrete jacking costs about half as much as concrete replacement and wonât incur supplementary costs such as new landscaping. Quotes for concrete leveling largely depend on the size of the area in question and are delivered on a cost-per-square-foot basis. The costs can also vary slightly based on the amount of foam needed and the length of the job.