Thursday, August 30, 2007

BLOODY HELL!!


Ok, seeing the moon turn bloody red was the coolest thing in the world. Though the BORING amelia earhart presentation made me not see the transformation of the BLOODY moon, i had fun looking at it. We spotted at smiling cove where it was pitch black. It was so easy to find the moon and all the stars around it.
Since i took the astronomy class led by Mr. Phillips, i learned that the redness of the moon is caused by the rays of the sun curving out to the surface of the earth which shines in the moon causing the moon to be bloddy red. Lunar eclipse is also easy to understand. It's when the moon, sun, and the earth are alined together but the earth will be in the middle. There is another eclipse called Solar ecclipse where the moon, sun, and earth are alined, but, this time, the moon is in the middle.

Amelia Earhart


I came to the presentation couple of hours late. We came there when the presentation was half way done. The Amelia Earhart presentation was, in my opinion, was BORING. Though the fact that i was about to sleep in during the presentation, there were some information that kept me awake. There was this experiment where the explorers tried to test if crabs were able to takes and rip of the body parts of a dead pig. They did experiment because they thought that creatures like crabs were able to take pieces of the body of Amelia.
They also showed some interesting information about the plane in the old days. There was one part where they found a small piece of iron and didn't know what it is for. Then the next thing you know, they came up with the theory that there was a piece of iron that was invented in the airstrip where Amelia was. The iron served as one separator for the gas tanks.
One thing that bugs me the most is the fact that there is still no plane found in the place where they suspect that amelia earhart landed. They believed that they are somewhere in the sea somewhere in the atols.

Wednesday, August 29, 2007

Tides

a. What is tidal range?
The difference in water level between successive high and low tides.
b. What causes high and low tides?
Tides are caused because of the gravitational pull of the moon and sun towards the earth. Large and small bulges are created. Large bulges are called high tides and the smaller bulges are called low tides.
c. What causes Spring and Neap tides?
Spring tides happen when the tidal range, or the difference in water level between successive high and low tides, is large. Neap tides happen when the tidal range is small.
d. How does tidal range effect the types of organisms and the shape and size of the organisms?
Organisms, due to the effect of tidal range, can either dies or live. Most of the effects of the tides on organisms living in these areas are due to the exposure to air. Another main problem is dehydration. Some strategies for survival in this area are to move into a moist are in order to maintain water. Also to move to a sheltered are protected from the sun and the crashing of the waves. Some organism protect their body with a protective layer. They either hide from tubes and other places or produce something like mucus to protect themselves.Organisms that have light colored shells don't absorb the heat as fast but rather reflect it. Having ridges on the shells also keep the organisms cooler as the texture of having a ridged shell helps reflect most light and sun rays. (note.. my answer is based on a paragraph from http://home.earthlink.net/~huskertomkat/tides.html)

Other than the bad effects, tidal range can have good effects too. High tides means that there's a lot of food that were once hard to reach when it was low tide. It is also the time to lay eggs. Some fishes lay eggs during high tides, and the eggs usually hatch when the high tides comes the next time around. The high tides help them swim from the shallow shores to the beaches.