http://www.treehugger.com/corporate-responsibility/offshore-wind-farms-to-power-15th-of-europe-by-2030.html
Hi Everybody!! Please come in to the "Happening" Reality Blog!!
Thanks to All of You, this is becoming an exciting place to be! I have to admit the streams can get boring; not to worry-never boring here! I am responding and creating the blog based on your ideas and feedback on what You like. So You can thank Lee Battles for the trip tonight!! He requested more of my mini-trips and to learn something new. Remember in this Nature Class there are No teachers, No grades, No tests and No pops. And come as You are, pajamas welcome! If you do not want to learn anything, just come for the trips. I am having a good time creating our adventures!
We are all Explorers. Keep that spirit in Your Heart.
Push play on this first one to begin our journey!
Continue around the Earths to your connecting flight!!
http://svs.gsfc.nasa.gov/vis/a000000/a001400/a001402/index.html
Before we head off on our Galactic Journey, I had a request for a quick trip around Earth in orbit at the International Play Station. This is fast, like 2 minutes so hold on and fasten your seat belts and push play on the next box:
Now that was fun! Around the world in 80 seconds!!
Hey look down there. Where are we?? Oh, it is Iceland!! Not staying here as it is too cold. Jump over the aurora!
Image Credit & Copyright: Daniel Lopez (El Cielo de Canarias)
Explanation: If you see a sky like this -- photograph it. Three nights ago in Iceland, an adventurous photographer (pictured) chanced across a sky full of aurora and did just that. Afterwards, by stitching together five smaller photographs, the entire aurora-lit sky was recreated in this 180-degree panorama taken from Vatnajökull glacier. Auroras are sparked by energetic particles from the Sun impacting the magnetic environment around the Earth. Resultant energetic particles such as electrons and protons rain down near the Earth's poles and impact the air. The impacted air molecules obtain excited electrons, and when electrons in oxygen molecules fall back to their ground state, they emit greenlight. Auroras are known to have many shapes and colors.
Here we are. This is where we are going to find the Galactic Wind. Keep going down to the Launch-site below.
Image Credit & Copyright: Adam Block, Mt. Lemmon SkyCenter, University of Arizona
The Launch pad is here. All aboard for Outer Space. The camera will fall off, but stay on the Rocket. Push play when you are ready!
You have arrived at the Space Classroom. Short discussion and video about Galactic Winds. I will meet you at the end of this class for the return trip. (I am taking a coffee break).
Still from previous visualization: color-coded full sky neutral atom map, as obtained with IBEX at energies where the interstellar wind is the brightest feature in the maps. In Earth's orbit, where IBEX makes its observations, the maximum flow (in red) is seen to arrive from Libra instead of Scorpio because the interstellar wind is forced to curve around the Sun by gravity.
Credit: NASA/GSFC/UNH
http://svs.gsfc.nasa.gov/vis/a010000/a010900/a010906/http://astronomy.swin.edu.au/cosmos/G/Galactic+Winds
| A great magnetic bubble surrounds the solar system as it cruises through the galaxy. The sun pumps the inside of the bubble full of solar particles that stream out to the edge until they collide with the material that fills the rest of the galaxy, at a complex boundary called the heliosheath. On the other side of the boundary, electrically charged particles from the galactic wind blow by, but rebound off the heliosheath, never to enter the solar system. Neutral particles, on the other hand, are a different story. They saunter across the boundary as if it weren't there, continuing on another 7.5 billion miles for 30 years until they get caught by the sun's gravity, and sling shot around the star.There, NASA's Interstellar Boundary Explorer lies in wait for them. Known as IBEX for short, this spacecraft methodically measures these samples of the mysterious neighborhood beyond our home. IBEX scans the entire sky once a year, and every February, its instruments point in the correct direction to intercept incoming neutral atoms. IBEX counted those atoms in 2009 and 2010 and has now captured the best and most complete glimpse of the material that lies so far outside our own system. The results? It's an alien environment out there: the material in that galactic wind doesn't look like the same stuff our solar system is made of. More than just helping to determine the distribution of elements in the galactic wind, these new measurements give clues about how and where our solar system formed, the forces that physically shape our solar system, and even the history of other stars in the Milky Way.In a series of science papers appearing in the Astrophysics Journal on January 31, 2012, scientists report that for every 20 neon atoms in the galactic wind, there are 74 oxygen atoms. In our own solar system, however, for every 20 neon atoms there are 111 oxygen atoms. That translates to more oxygen in any given slice of the solar system than in the local interstellar space. http://svs.gsfc.nasa.gov/vis/a010000/a010900/a010906/ |
Just Push Play
| Galactic Winds |
- Galactic winds are streams of high speed charged particles often observed blowing out of galaxies. With speeds of between 300 and 3,000 km/sec, these winds can either blow material out into the halo of thegalaxy, possibly to mix with the hot X-ray emitting halo gas, or expel the matter from the galaxycompletely to mix with the intergalactic medium. Galactic winds have two sources of energy: starbursts and active galactic nuclei (i.e. the supermassive black holes lurking in the centres of most galaxies). In the case of starbursts, galactic winds are powered by high speed stellar winds ejected from newly formed massive stars (similar to the solar wind, only far more dense and energetic), and supernova explosions.
For example, the starburst galaxy, M82, is undergoing a massive burst ofstar formation. The bright points of light in the image are newly formed massive stars which are ejecting masses of material in the form of a stellarwind. At the end of their lives, these stars will explode in core-collapsesupernova explosions which will eject even more stellar material into the interstellar medium. The enormous amounts of energy from the stellar winds andsupernova explosions of these massive stars has created agalactic wind which is evidentas an orange haze in this Chandra X-ray image.
An idea of the extent and orientation of the galactic wind of M82 is seen in this image, which traces the ionised hydrogen (red) contained within it. The wind extends
~10,000 light years from the centre of the galaxy where the starbust is taking place.
The burst of star formation powering the wind was probably caused by an interaction
For active galactic nuclei, galactic winds are powered by the supermassive blackhole resident at their centre. If the black hole is accreting a significant quantity ofmatter (i.e. is 'active'), the combined energy output of the accretion disk and thegalactic jets can be sufficient to expel ambient gas from the galaxyin a galactic wind.
.Galactic winds are believed to play several important roles in the evolution of galaxies. They are responsible for redistributing metals throughout the galaxy and also regulate star formation. If the galactic wind has blown all of the gas out of the galaxy, star formation will cease. However, it is possible that in the long-term, this gas will cool and fall back onto the galaxy, providing a source of gas for future star formation.
I hope You enjoyed Your Space Class on Galactic Wind.
Please board the plane for our return trip to Earth. Enter through the Square-just push Play!
We have arrived safely back at Rainbow Creek!
Just in time for Sunset. Another great day. Hope you enjoyed our little quick trip around the Universe. Somehow we have gone through a time warp. I still have some things to work out!! LOL.
I have arranged for the sailboat below to take you home. See You next time. Give Thanks for our wonderful world and Hug your friends. I hold you in my heart and wish You Joy. I Love You!
Just Push Play!
Peace Be With You.
....this is brendasue signing off from Rainbow Creek.
O+O
Interesting entry Brendasue!
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