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
1 ConcreteNetwork.com provided an overview on what most concrete flooring jobs would cost. 2  They noted that the average can be anywhere from $2.50 to as much as $30 per square foot. An economical option, which can just change the tone of the concrete floor, will typically cost less than $6. 2  An elaborate finish, which can come in many various designs and application techniques, can cost upwards of $10 per square foot.