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 Patio Cost. A plain concrete slab usually costs $2 to $5 per square foot installed, depending on your region of the country. Decorative concrete patios start at about $6 to $10 per square foot for a simple design.Custom work involving borders, multiple colors and hand-application techniques costs $10 to $15 per square foot or more.oncrete Patio Cost. A plain concrete slab usually costs $2 to $5 per square foot installed, depending on your region of the country. Decorative concrete patios start at about $6 to $10 per square foot for a simple design.