It was 1387. In an enormous stroke of good fortune, the first successful pair of eyes
had been invented only the year before.
At first, this was viewed as an incredible coincidence. But today, we can appreciate it
for what it was ... simply a demonstration of capitalistic entrepreneurship, long before
those words had even been coined.
Today, it could hardly be more clear to us that the invention of the eyes rendered it
imperative that there be some practical use for them ... something to see ... otherwise
nobody would ever buy them. That reasoning in turn drove the effort to invent light,
and that project bore fruit in less than a year.
Also today, we can look back over the tapestry of time and come to a full appreciation
of the myriad industries created in the wake of this landmark invention ... pursuits
that would otherwise have been sheer and complete folly, with no logic or chance
of success.
After only a moment's casual reflection, the mind is inspired to literally boggle:
Astronomy, optometry, ophthalmology, optical interferometry, sunscreen,
gardening, the automobile, reading, strip tease, Archery and riflery, paint and
its ancillary hobbies, etc. etc. etc. We must be truly awed and thankful.
"light-year"
The distance light travels in a year is called light-year
A light year is how far light will travel in a vacuum in one single year(Julian) The Value of a light year is, 9,460,730,472,580.8Km.
A light-year is the distance light can travel in one year. Light travels at 186,000 miles per second. Multiply that by 3600 seconds in an hour and then by 24 hours in a day and 365 days in a year and you will get the distance in one light-year.A light year is defined as 9,460,730,472,580,800 meters exactly, derivedfrom the distance that light travels in vacuum in one Julian year.
No. A light-year is a measurement. A light year is a distance measurement based on how far light travels in a year.
"light-year"
The distance light travels in a year is called light-year
A light year is a measure of distance, not time. A light year is the distance that light will travel in one year. One light second is 186,000 miles. A light year is a measure of distance, not time. A light year is the distance that light will travel in one year. One light second is 186,000 miles.
A light year is how far light will travel in a vacuum in one single year(Julian) The Value of a light year is, 9,460,730,472,580.8Km.
twenty-five, its light purple and found in a couple levels
A light-year is a measure of distance that a photon of light will travel in one year .
A light-year is the distance light can travel in one year. Light travels at 186,000 miles per second. Multiply that by 3600 seconds in an hour and then by 24 hours in a day and 365 days in a year and you will get the distance in one light-year.A light year is defined as 9,460,730,472,580,800 meters exactly, derivedfrom the distance that light travels in vacuum in one Julian year.
No. A light year is a unit of distance, not time. It is the distance light travels in a year.
The question should be How Long is a light year (in standard form) as a light year is the DISTANCE that light will travel in one year No...I'm not sure what a light year would be in a leap year.
No. A light-year is a measurement. A light year is a distance measurement based on how far light travels in a year.
False the light year is not a unit of time it is a unit of distance true.
No. A light year is a measure of distance, not time. It is how far light travels in a year.