Special Announcement

This is one of those times when family and work collide. My niece was diagnosed with a severe skin infection which required a surgery and has a skin graft scheduled for tomorrow. As a result, much of my weekend has been spent in the hospital.

This means that I am making tomorrow's test OPTIONAL. Test is required on TUESDAY, due to the late nature of the review sheet being posted. Thanks for your understanding on this unavoidable lapse.

1. Almost massless particle that tells us the health of the sun
2. Knock out communication or electrical transformers, cause extreme sunburns, cause auroras
3. In the center of the sun.
4. Melting one atom into another. The proton-proton chain is one example. The CNO chain is another.
5. Helium
6. Ray Davis had 100000 gallons of dry cleaning fluid down a mile in a mine (the Homestake mine) and was trying to confirm the numbers of neutrinos coming from the sun.
7. There are three types of neutrinos. Davis' experiment only could detect one.
8. Because they can see different parts of the universe.
9. It had mirrors and you could see the images upright?
10. It's the million year trip that a photon formed in fusion takes to travel to the surface of the Sun.
11. 6000 degrees vs. 15000000 at the core.
12. H and He
13. A stellar fingerprint is made up of all the colors that are specific to each particular element.

14. OBAFGKML
15. It's surface temperature, and usually its classified by elements based on that.
16. Hipparchus did not realize that the sun and the moon also should be considered in the spectra. His scale doesn't account for negative magnitude, and we have extended the scale to a magnitude of 25. 6 is the lowest magnitude we can see with the naked eye.
17. Annie Cannon
18. More than 20 years of working to figure out how the neutrinos in the sun worked. Bahcall is the theorist.
19. What is the difference between a theorist (does the math) and an experimentalist (does the experiment and gets the Nobel)?
20. Can we create fusion here on earth (only for a few seconds)
21. Radioactivity is not good or bad. It's how we use it that is. Fusion from the sun is a type of radioactivity that keeps our planet warm. Radioactivity in the core of the earth is what helps keep our planet spinning, due to inertia.
22. After we fuse all the hydrogen, we start fusing helium.
23. hydrogen particles and photons and stray atoms.
24. Several times bigger than the diameter of the earth.
25. Sunspots cool the sun, have a magnetic effect on the sun, and cause solar flares.
26. Pressure blows out of the core, and gravity pulls the matter back in. If there is not a balance, the star grows bigger, or implodes
27.Travel at the speed of light.
28.22 year cycle where we got through solar maximums and minimums, caused by the convection inside the sun.
29. A diagram of the activity of the sun month-by-month or year-by-year versus distance from the equator.
30. Can cause the occasional solar flare.
31. Solar particles are directed past the earth, as the magnetic field is a force field that protects us. The auroras show up near the poles.
32. A place where a star has impoded.
33. Einstein says that E=mc^2 is a way to understand how matter can turn into pure energy in the core of the sun.
34. A gamma ray telescope detects black holes, dust is detected by infrared.
35. Gamma
36. UV, visible, and infrared
37. Charge coupling device used to detect photons and turn them into voltage.
38. Light turns voltage and the voltage is converted into bits, which the computer can store.
39. TONS of things, including solar cells, but most importantly all digital cameras.
40. Very large array in southern US or a cellular dish
41. 3 is brighter than a magnitude 5

Learning about the life cycle of stars

Using this class period, work to further your understanding of how stars evolve, using the link found here and the link on the post below.  As you work, make a concept map or outline that shows your understandings. I will ask for this on Monday; this work should take all hour to do well.

I will post the answers on the blog sometime later today, but I wanted you to focus on this assignment first.

Stellar Evolution diagram...notice how different masses produce different results

This picture shows an interactive map of stellar evolution found HERE

Quiz 2

CLICK HERE

Gone to Wrestling

• Note packet (get when you come back), especially focusing on the idea of the proton-proton chain (see http://csep10.phys.utk.edu/astr162/lect/energy/ppchain.html )
• Blog post: Will the world end in 2012? See below
• Telescope worksheets (2). The first one has a website, the second one requires research on the web. Pay careful attention to Hubblesite.org and http://chandra.harvard.edu
• Neutrino website, with a 4 paragraph reflection on your blog. Answer the following questions:

a) what are neutrinos?
b) why are they so important to understanding the sun?
c) would YOU be able to persist for as long as Bahcall and Davis did when people doubted your experiment? Explain your viewpoint (seriously, I often wonder if I would have been able to do it....)
d) what is the importance of neutrinos having mass
e) where are neutrinos being researched around the world?

Neutrino site

Review 2

1. Mercury, Venus, Earth, Mars
2.Jupiter, Saturn, Uranus, Neptune
3.Asteroid belt
4.What is the Kuiper belt is mostly unknown, rocky, icy, home to Pluto, Charon, Pluto's moon, and a multitude of Plutoids
5.Oort cloud makes up more than half of the solar systtem
6. Comets
7. in class, tweet me if you want to know
8. Rocky (terrestrial) planets
9.List the parts of a comet. Head, tail, coma
10.A rocky object in space
11.Forms from the melting of the solar wind
12.A meteor actually interacts with the earth's atmosphere. It's a semantic difference, which means they use a different word than asteroid to make it seem unique.
13.Gassy planets are mostly atmosphere, and all the rockies except for Mercury.Pluto is a maybe
14.Too much methane, carbon dioxide and water in an atmosphere can hold heat, and make the planet warm.Venus is an extreme example of that.
15.Mars
16.Explain seafloor spreading using a picture. See picture below
17. An optical illusion where a planet moves backwards in comparison with the background stars.
18.A hurricane that is 3 times the diameter of the Earth.
19.Pluto
20.Pluto, if you think it is a planet. Neptune, if you believe Pluto is not a planet
21.Which planet travels faster? Mercury, so it doesn't fall into the sun.
22.It convinced Galileo of geocentrism.
23.Because the planets are ellipses, not circles.
24.All REVOLVE CCW, Venus rotates CW on its axis.
25.Neptune
26.All the gas planets do.
27. Rock.
28.Find out at http://www.solarviews.com/eng/edu/weight.htm
29.Terrestrials and rockies are the same thing. They are denser than gas planets.
30.Over 60, and gas planets have more, because of their immense gravity
31.Of course. Our moon did at one time, and Io does.
32.Venus
33.Neptune
34.Mercury, but skip this one.
35.Venus
36.Plate tectonics
37.Increased heat is trapped on the planet surface by an excess of methane, carbon dioxide and water vapor.
38.See your notes, and compare the Earth to Mars, as you will have to do on the test tomorrow.
39.Pluto, and his method of finding that Plutoid is used to help determine asteroid locations today. Tombaugh used glass plates.
40.Rivers changing course, fence posts leaning, and craters disappearing.
41. Surfaces with no wind or water will have minimal weathering, which explains the moon.

Will the world end in 2012?

Create a 3-4 paragraph blog post detailing your observations on the following three sources, plus material gleaned in class

Source 1

Source 2

Source 3

Solar Flares and the Sun

SpaceWeather

Cometary Planet Adventure

Consider the ultimate dream vacation:  a trip to the planet of your choice.  You are charged with creating a brochure that tells me about these opportunities. 

Pick a planet.  Tell me the following:

a) rocky location that is nearby in which you can stay
b) sightseeing opportunities available in the night sky
c) hazards to human life and health
d) a comparison between this venue and the earth
e) details of how a comet might appear as it passed near your location.
f) other information of interest, including space missions
g) a resource list to support your evidence.

Links:  Comets

Links:  Planets

Scaling the Solar System

Build a Solar System

How Big is the Solar System?