Archives for the 'time' Category
A new time for Daylight Saving Time
Published on 7 Mar 2007 at 11:30 pm.
4 Comments.
Filed under time.
Back in October, I posted something about daylight saving time. For many years, DST has started here in the United States the first Sunday in April and lasted until the last Sunday in October. However, a provision of the Energy Policy Act of 2005 changes the rules, starting this year, 2007. This […]
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Just a second
Published on 29 Jan 2007 at 2:50 pm.
1 Comment.
Filed under time.
Right at the beginning of first semester physics, we discuss the meaning of various units. One of those units is the second. So, just what is a second?
That turns out not to be so easy to answer. We need to stop and think. A second is 1/60 of minute, and […]
Sunrise, Sunset, and the Winter Solstice
Published on 17 Dec 2006 at 5:07 am.
16 Comments.
Filed under Earth, skywatching, time.
In a few days, it will the the Winter Solstice here in the northern hemisphere. The Sun will be the farthest south that it will get all year. That means that it will be the shortest day of the year for us. Now, for our friends in the southern hemisphere, it is […]
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Another time change
Published on 28 Oct 2006 at 1:27 pm.
8 Comments.
Filed under calendars, time.
Well, there’s another time change that is upon us. I always hate it when we have to change time. The idea goes all the way back to Benjamin Franklin, who proposed to the French that they adjust the time during the summer months. You see, due to the tilt of the Earth, the […]
Universal Time
Published on 25 Aug 2006 at 6:51 pm.
1 Comment.
Filed under time.
The last Full Moon was August 23, at 19:10 UT. The First Quarter Moon will be August 31, at 22:56 UT. What’s this UT stuff?
UT stands for Universal Time. So, what does that mean? Well, you see there are certain things that happen at times local to where you are. […]
What time is it?
Published on 23 Jan 2006 at 7:37 pm.
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I was thinking of what to blog about, and I had a couple of ideas floating around while I was eating breakfast. Gordon’s comment to my last post had me thinking about blogging about astronomy student expectations when the sign up for the class. Then, I heard a loud noise outside and the […]
