Wednesday, March 28, 2012

The Requirements for Life

There are three essential parts to form human life. The first is that the plant orbits a main sequence star. Secondly the planet must be solid so that there can be a  a liquid solid composition on the surface. The Last is the planet has to be far enough from the star to have liquid water on it. Our solar system stared 4.568 billion years ago with the gravitational collapse of a small molecular cloud. Which formed the sun. The remaining pieces of the cloud flattened into a disk and formed planets. Among all these planets the only one that supports life is Earth. Now scientists can look farther out into the universe, and considering how many star there are they expect to find life out there.

Thursday, March 15, 2012

A collection of my thoughts on Stars.

Stars have different characteristics, that tell us about it's size, the stages the star is on, or is going to experience, and much more. One of these characteristics is Luminosity which is the absolute magnitude, or in other words is how much energy a star emits. Spectral Types show the non-thermal radiation of light from stars. This is helpful because each element has a different Spectral Type. The Temperature of a star also tells us things about the star. The temperature can be determined by color. Blue stars have a hotter temperature, while red stars are cooler. Hydrogen turns into Helium on stars, and the temperature can tell us how fast this is happening because, the hotter the star the more fusion occurring. Main Sequence stars are considered stable stars because their brightness and temperature are usually relative to each other.


http://outreach.atnf.csiro.au/education/senior/astrophysics/photo
http://www.universetoday.com/39974/hertzsprung-russell-luminosity.htmldiagram/metry_
http://cas.sdss.org/dr3/en/proj/advanced/spectraltypes/

Saturday, March 10, 2012

My Science Fair

 I will be testing the capability of participates to identify and replicate the musical notes that they hear. I will also be comparing the results of musically talented people verses non-musically talented people to see if musically talented people can hear tones better. In the experiment the people will be using only one ear per set of notes. This way I will be able to tell which ear could identify tones better. I suspect that the left ear will better be able to identify the tone because the left side of the brain is musical side of the brain. Also I think that people that are more musically inclined will be able to replicate and hear the sounds better than people who do not take music classes or play a instrament. I play the piano, violin, and sing therefore I know that in music is is important to hit the right pitch so I was wondering which ear was better able to hear the note. Which is why I am really interested in the results of this science fair project.