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 flooring is usually cheaper and can start as low as $ 2 a square foot the price will vary mainly according to the grade higher grades of concrete will change the cost a lot once you get into more complex patterns and premium stains you are looking at approximately $ 15 a square foot