Scioly.org

drifter601 wrote:

foreverphysics wrote:Do you guys think that Reach For the Stars is better or is Forestry better? Because the two events conflict...and I like the idea of both.

Actually I had the same problem, I love both things, but in the end, I actually signed up for Reach For The Stars because there were so mny people doing forestry, and not very many doing this one, In the end, it is up to you and the circumstances

i love both, but there is like no hope for our team to go to nats, so im doing both and just praying that it doesn't conflict at regionals or state for us...

tuftedtitmouse12 wrote:i love both, but there is like no hope for our team to go to nats, so im doing both and just praying that it doesn't conflict at regionals or state for us...

Ya I felt that way last year and my team shocked me, we came SO CLOSE. Hopefully this year is the year

How do stars become Red Giants?

XJcwolfyX wrote:How do stars become Red Giants?

Lifted shamelessly from Wikipedia:

"When the star exhausts the hydrogen fuel in its core, nuclear reactions in the core stop, so the core begins to contract due to its gravity. This heats a shell just outside the core, where hydrogen remains, initiating fusion of hydrogen to helium in the shell. The higher temperatures lead to increasing reaction rates, producing enough energy to increase the star's luminosity by a factor of 1,000–10,000. The outer layers of the star then expand greatly, beginning the red giant phase of the star's life. Due to the expansion of the outer layers of the star, the energy produced in the core of the star is spread over a much larger surface area, resulting in a lower surface temperature and a shift in the star's visible light output towards the red – hence red giant, even though the color usually is orange."

I think this is a pretty understandable explanation.

Thanks!

Are Mizar & Alcor one star system to study or do you have to know both individual stars separately? Same for Castor & Pollux.

fishman100 wrote:Are Mizar & Alcor one star system to study or do you have to know both individual stars separately? Same for Castor & Pollux.

They're both two different stars so I'd assume you'd study them separately. But if it's asking you what star in Ursa Major it is I'd just answer both.

Castor is Alpha Geminorum. Pollux is Beta Geminorum. They are far apart in the sky, so they are NOT in a system together.
Anyway, QUIZ TIME! (yaaaaaaay...)
1. What are the four types of binary stars?
2. What is the nearest binary system?
3. What are the two nearest triple star systems?

Cheesy Pie wrote:Castor is Alpha Geminorum. Pollux is Beta Geminorum. They are far apart in the sky, so they are NOT in a system together.
Anyway, QUIZ TIME! (yaaaaaaay...)
1. What are the four types of binary stars?
2. What is the nearest binary system?
3. What are the two nearest triple star systems?

Sorry Cheesy Pie I do not have the answers to your questions at the moment, being Science Olympiad has not started for us yet.

I have a question though:
What do the rules mean when they say: "must be knowledgeable about the evolutionary stages of the stars and deep sky objects on the list below"?
Does this mean that you have to know the whole life of that star, or does it mean that you just have to know the stage that is is currently in?