| vivekvshetty wrote: |
Namaskaar Krishnakumar ji,
Good answers and thank you for answering. Many have not bothered to answer.
The last question was expecting a more detailed answer and also some background study.
RishiRahul and vivek.
| Krishnakumar M R wrote: |
Respected Guruji (s),
Please find my answers below :
| vivekvshetty wrote: |
Introduction to Raashi.
Q1: What does the word Vishnu mean?
Protector... Undefeatable...
Q2: Which story in Hindu mythology depicts these three steps?
Sanaatan dharma or eternal righteousness - Rig Veda.
And also it reminds Vaamana Avtar of Sri Vishnu and the Great Mahabali Chakravarthi where in Vishnu kept his third feet on Mahabali chakravarthis head.
Q3: Is the day and night really equal on the day of equinox? Why is it so?
Yes. When the sun is exactly at the center of bot the north and south point, the day and night were equal length. |
Krishna |
|
Respected Guruji,
I have copied few points from different websites:
http://en.wikipedia.org/wiki/Equinox
An equinox occurs twice a year, when the tilt of the Earth's axis is inclined neither away from nor towards the Sun, the Sun being vertically above a point on the Equator. The term equinox can also be used in a broader sense, meaning the date when such a passage happens. The name "equinox" is derived from the Latin aequus (equal) and nox (night), because around the equinox, the night and day are approximately equally long. It may be better understood to mean that latitudes +L and -L north and south of the equator experience nights of equal length.
On a day of the equinox, the centre of the Sun spends a roughly equal amount of time above and below the horizon at every location on the Earth, night and day being of roughly the same length.
An equinox happens each year at two specific moments in time (rather than two whole days), when there is a location on the Earth's Equator where the centre of the Sun can be observed to be vertically overhead, occurring around March 20/21 and September 22/23 each year.
http://www.usatoday.com/weather/wequinox.htm
Source: U.S. Naval Observatory
By Jack Williams, USATODAY.com
Each March at a particular instant, around the 20th, the sun is directly above the equator. This is the spring equinox. In September, around the 22nd, the sun is again above the equator at the fall equinox.
Often you hear that day and night are equal length on the spring and fall equinox, but that's not the case. In fact, day and night are equal length for a few days around the time of the equinoxes.
On the equinox, the sun's center sets 12 hours after it rose all over the world.
But, sunrise and sunset occur when the top of the sun, not its center, is on the horizon. This alone would make the time of sunrise and sunset a little more than 12 hours apart on these days.
In addition, as the graphic above shows, the earth's atmosphere refracts, or bends, light from the sun. As a result, the top of the sun appears to be above the horizon when it is actually below the horizon.
In calculating sunrise and sunset times, the U.S. Naval Observatory uses 34 minutes for the angle of refraction and 16 minutes for the semi diameter of the sun's disc. In other words, the center of the sun is actually 50 minutes of one degree below a regular and unobstructed horizon at the time of sun rise.
The following table shows sunrise and sunset times for Chicago around the time of the spring equinox. They are typical.
Date Sunrise Sunset Daylight
March 17 6:00 a.m. 5:59 p.m. 11 hours, 59 min.
March 18 5:58 a.m. 6:00 p.m. 12 hours, 2 min.
March 19 5:56 a.m. 6:01 p.m. 12 hours, 5 min.
March 20 5:54 a.m. 6:02 p.m. 12 hours, 8 min.
Krishna
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