Archives for the 'Earth' Category
Tides high and low
Published on 15 Sep 2006 at 12:40 pm.
9 Comments.
Filed under Earth, moon.
A few days ago, I posted about the Full Moon last week not being the Harvest Moon. I got a comment from Rob asking about tides. I thought about it, and I decided that the answer was a bit much for a follow-up comment. So, I decided to do a posting on tides.
In introductory textbooks […]
2006 Hurricane Season - Part II
Published on 3 Aug 2006 at 11:39 pm.
No Comments.
Filed under Earth.
OK. I am still planning on moving my blog. This new format is driving me nuts. Why couldn’t they just leave things alone?
Hmm. Here is an interesting development. If you recall, I predicted just about the same thing back some months ago. Now, the experts are saying that they […]
Read ‘2006 Hurricane Season - Part II’
Seasons
Published on 1 Jul 2006 at 4:39 pm.
1 Comment.
Filed under Earth, calendars.
This is a followup to yesterday’s post. Here in the United States, the calendar says that Summer starts at the Summer Solstice (June 21, this year), Spring started at the Vernal Equinox (March 20, this year), Autumn starts at the Autumnal Equinox (September 22, this year), and Winter will begin at the Winter Solstice (December21, […]
Aphelion
Published on 30 Jun 2006 at 4:41 pm.
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Filed under Earth.
Earth’s orbit is not perfectly circular. Rather, it is slightly elliptical. July 3, at about 23:00UT (That will be about 8pm, Central Daylight Time here in Texas), Earth will be the farthest it gets from the Sun all year: 152,095,700 kilometers. The point in a planet’s orbit where it is farthest from the Sun we […]
Death from the Skies
Published on 23 Jun 2006 at 4:45 pm.
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Filed under Earth, asteroids.
Hey, that would be a good title for a scifi movie about alien invaders. Well, that isn’t what I was going to talk about. Seeking Solace asked me last week about doomsday asteroids. I haven’t had a chance to respond, yet. It has been a hellish week for me. Then, possibly something bad being found […]
Tides
Published on 9 Jun 2006 at 2:16 pm.
1 Comment.
Filed under Earth.
Anyone growing up near the coast, as I did, is well aware of tides. But, I find that most of my students, who grew up inland, know next to nothing about tides.
Basically tides are caused by a differential gravitational pull. In other words, gravity pulls harder on one part of an object than another, causing […]
Blowing up the Earth
Published on 2 Jun 2006 at 6:51 pm.
5 Comments.
Filed under Earth.
I was bored this afternoon, so I decided to blow up the Earth. OK, so I didn’t really blow up the Earth. I only did it on paper and with a calculator. But, with the mood that I’ve been in today, it sure felt good.
In Star Wars, the Death Star blows up Alderaan. In The […]
