Thursday, October 26, 2006

Pair of Satellites Will Document Sun in 3-D

I chose this article because it was obviously easy to relate to physics. It appears that a group of scientists is going to send two satellites around the sun and each of them is going to act like a human eye. The effect of having these two satellites reading the sun at the same time is going to give us a 3-D view, just like how human eyes can see depth.
The satellites are going to track a path that is close to the Earths and the satellites will eventually end up on opposite sides of the sun.
Without our understanding of physics as it is today, something like this could not even be possible. Not only do you need the physics in understanding the launching of rocket and getting it into space, but you also need to know how to keep these satellites going around the sun without having them fall into it. Keeping these satellites in their orbits probably has a lot to do with rotational kinematics, as well as with dynamics involving the forces of the rocket engines.
If you wanted to relate this to Energy and Work, you could say that the propulsion of the engines of the satellites is kinetic energy at work, and since these engines are applying a force on the satellite and making it move a distance, work as defined by physics, is being done.

Original Article
National Aeronautics and Space Administration Articles List

Thursday, October 12, 2006

Study Links Extinction Cycles to Changes in Earth’s Orbit and Tilt.

This article is about how the earths orbit can affect different species of mammals. The article focuses on the effects of the orbit effect the mice' population. It says that when the orbit is more circular the cycle is at its peak for the mice. There are also smaller cycles that the mice go through dealing with the tilt in the earth's axis. There are scientists that have found evidence that the earth's rotation can have nothing to do with species turnover too. The findings discussed in this article are very controversial.
This article is definitely related to physics because it deals with the earth's rotation and things involving movement in our universe. I think that these movements are a big part of physics, and therefore this article really deals with a lot of physics. This article can specifically be related to kinetics because of the earth's movements discussed.
I personally don't think that these findings will affect me much. Although they could have very important uses for archeologists and people who study biology.