Can it really be that hard to determine the time? It’s either 25 or 26 minutes before 4:00! Pretty simple. Today, we can better answer such questions with digital clocks. It’s either 3:34 or 3:35—no question at all.
Science is usually pretty precise so you would expect numbers to be fairly set as well. Science would tell us the time down to nanoseconds for extra precision. It’s for that reason that I found an article to be especially annoying. The expected accuracy was missing.
If one car drives at 7 miles per hour and another drives at 70 miles per hour, wouldn’t it be safe to say that the second car is travelling 10 times faster? Can you imagine a scenario in which you would say, at the same speeds, that it was travelling five times faster? Seven times faster? Of course not! We can easily see that 7 x 10 = 70 and the statement that it is travelling 10 times faster is accurate.
I read an article today about interstellar space travel. It was written by “Richard Obousy is co-founder and President of Icarus Interstellar Inc., a nonprofit foundation dedicated to researching the science and technologies that will enable interstellar flight by 2100.”
Here’s what this very intelligent man says:
“…Voyager 1, launched in 1977, is the furthest manmade object from Earth, and travels at over 10 miles per second (36,000 mph). Even traveling at this incredible speed, it would take just over 70,000 years to reach the closest star to our solar system.
Recently, NASA began developing Solar Probe plus, which will study our own sun. Through a series of seven gravitational assists with the planet Venus, the probe will reach the extraordinary speed of 125 miles per second. This is a full seven times faster than Voyager 1, which would allow it to make a trip to another star (if that were its objective) in 6,450 years.”
According to his math, 125 miles per second is a full seven times faster than 10 miles per second!
My calculations tell me it’s 12.5 times faster but who am I to argue with a rocket scientist???
(OK—he did say “over 10 miles per second”. Fact is, 125 is seven times faster than 17.857 miles per second. You would think he’d at least say “over 15 miles per second!)