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
So, to the practicalities. Where do we get some, what does it cost, when can we have it? First things first, a polished concrete floor costs anywhere between Â£60 to Â£400 a sq metre. The difference depends largely on whether it can be levelled by machine or, if the space is too tight, if it must be done by hand.here do we get some, what does it cost, when can we have it? First things first, a polished concrete floor costs anywhere between Â£60 to Â£400 a sq metre. The difference depends largely on whether it can be levelled by machine or, if the space is too tight, if it must be done by hand.