brucec@tektronix.UUCP (Bruce Cheney) (03/14/86)
This is just a friendly reminder that the spring equilux, the day
when there are equal amounts of light and darkness, is approaching.
For those of you who participated in a discussion last year exploring
the reasons why equilux and equinox are not coincident, here is a
further question to ponder: According to the data shown below,
(Portland, OR 45 deg N, 122 deg W) sunrise and sunset for the spring
equilux, Mar 17, is at 6:20 (am and pm), for the fall equilux they are
at 6:02 (am and pm PST). Why are they different ? How come they both aren't
at 6:00 (am and pm PST) ? Fall equilux is close enough, but those
20 minutes in spring bother me.
Sunrise and Sunset at Portland OR
Pacific Standard Time
Mar. Sept.
DAY Rise Set Rise Set
AM PM AM PM
16 6:22 6:18 5:50 6:20
* 17 6:20 6:19 5:51 6:18
18 6:18 6:20 5:52 6:16
19 6:16 6:22 5:54 6:14
20 6:14 6:23 5:55 6:13
21 6:12 6:24 5:56 6:11
22 6:10 6:26 5:57 6:09
23 6:09 6:27 5:59 6:07
24 6:07 6:28 6:00 6:05
25 6:05 6:29 6:01 6:03
* 26 6:03 6:31 6:02 6:01
27 6:01 6:32 6:03 5:59
tekcrd!brucec ("The wheel in the sky keeps on turning...")chrisb@dadla.UUCP (Chris Benenati) (03/17/86)
In article <6895@tektronix.UUCP> brucec@tektronix.UUCP (Bruce Cheney) writes: > >According to the data shown below, >(Portland, OR 45 deg N, 122 deg W) sunrise and sunset for the spring >equilux, Mar 17, is at 6:20 (am and pm), for the fall equilux they are >at 6:02 (am and pm PST). Why are they different ? How come they both aren't >at 6:00 (am and pm PST) ? Fall equilux is close enough, but those >20 minutes in spring bother me. Perhaps we could start a petition intiative to get them legally changed, so they both occur at exactly 6:00. (I confess to being inspired by a bill was once introduced into the, I think, Tennessee state legislature to get PI set to 3 so it would be easier to work with).
msb@lsuc.UUCP (Mark Brader) (03/22/86)
Chris Benenati (chrisb@dadla.UUCP) writes: > Perhaps we could start a petition initiative to get them legally changed, > so they both occur at exactly 6:00. Hmm, why don't we just go to Saudi Arabian time? :-) > (I confess to being inspired by > a bill was once introduced into the, I think, Tennessee state legislature > to get PI set to 3 so it would be easier to work with). It was Indiana, it was 3.2, and that was not the reason. The reason was that an innumerate member of the legislature accepted a submission from a quack mathematician who thought that pi WAS 3.2 and that all the textbooks were wrong. The act passed in the state's House, came to public notice, and was killed in their Senate. Mark Brader