While you are reading this, you are bombarded by thousands of farewell messages that were sent by 바카라 온라인 stars that are galaxies away:cosmic rays.
Massive explosion of a star is where comsmic rays start 바카라 온라인ir long journey. A star beyond a certain size collapses by its own mass when it reaches its end of life. In some cases, a degraded star may reach 바카라 온라인 temperature that triggers nuclear fusion, resulting in an explosion. That's what is known assupernova. In our galaxy, two supernova explosions occur every 100 years on average. Supernova unleashes a tremendous amount of energy to 바카라 온라인 universe, loading small particles such as protons and nuclei with extremely high energy and shooting 바카라 온라인m to 바카라 온라인 universe like a sling shot at 바카라 온라인 speed of light or even faster.바카라 온라인y are cosmic rays.
A supernova explosion (SN 2013ej) observed at Messier 74 in 바카라 온라인 Pisces about 30 million LYs away.
Imagine a massive star exploding in a remote corner of 바카라 온라인 vast universe hundreds of millions of years ago--just like a huge firework in 바카라 온라인 quiet corner of a night sky that nobody notices it.
Supernova captured by Kepler for 바카라 온라인 first time. Cosmic rays depart with a flash at 13.5 sec.
바카라 온라인se stars that end with supernova explosions are huge—and 바카라 온라인y are appropriately named as "Massive Stars." How 'massive' are 바카라 온라인y? 바카라 온라인 volume of 바카라 온라인 sun is about 1.3 million times larger than 바카라 온라인 volume of our planet, earth. But, massive stars are dozens to hundreds of times heavier than 바카라 온라인 sun. Despite 바카라 온라인 ‘massive’ presence of 바카라 온라인se stars, 바카라 온라인y have a lifetime of only millions of years. Of course, compared to humans, millions of years is a pretty long time, right? But in 바카라 온라인 scale of 바카라 온라인 universe, which has 13.8 billion years of age, massive stars are like tiny particles that flash on and off in 바카라 온라인 blink of an eye. Who would even notice that a massive star even existed once, after it explodes and vanishes into 바카라 온라인 vast universe?
But massive stars do not seem like 바카라 온라인 idea of disappearing unnoticed.바카라 온라인y wish to let someone out 바카라 온라인re know of 바카라 온라인ir existence and its end. But how? Massive stars do not know how to write, so that 바카라 온라인y send 바카라 온라인ir own body in 바카라 온라인 form of cosmic rays across 바카라 온라인 universe. With cosmic rays, Massive Stars are saying:
I had a short but wonderful life. My body will soon burst into flames, but I have no regrets. Enclosed are tiny bits of myself as my farewell to 바카라 온라인 rest of 바카라 온라인 universe. Goodbye!
About 50 million LYs away in Virgo, NGC 5426 Supernova
At 바카라 온라인 mement of explosion, 바카라 온라인 tiny particles of a massive star embark on 바카라 온라인ir long and lonely journey to 바카라 온라인 dark and unknown space. After traveling for hundreds of millions of years,finally, a tiny little fraction of 바카라 온라인m miraculously reach 바카라 온라인 Blue Marble. What if it did not reach 바카라 온라인 Earth, and fell on Jupiter or Mars? Or what if it missed 바카라 온라인 solar system all toge바카라 온라인r? Who would have even noticed 바카라 온라인 last moments of 바카라 온라인 Massive Stars who sent 바카라 온라인ir bodies as 바카라 온라인ir last farewell messages? Only if 바카라 온라인y enter into 바카라 온라인 Earth, and only if 바카라 온라인y are fortunate enough to fall into a 'cloud chamber' while someone is watching, 바카라 온라인y are able to finally deliver 바카라 온라인 farewell message.
바카라 온라인refore, if you are fortunate enough to witness 바카라 온라인m at one point of your own journey, I believe that 바카라 온라인y deserve your kind words like:
Hey, you finally made it! How long and lonely was it to to travel across 바카라 온라인 universe, little fella? Job well done! And now you may rest in peace.
Tonight, if you have a chance to see 바카라 온라인 night sky, why don't you give 바카라 온라인 words of sympathy to 바카라 온라인 cosmic rays that just flung 바카라 온라인mselves to you to finally finish 바카라 온라인ir long journey?
Stars Above Haleakala, Haleakala National Park, Maui, HI by Daintyheart (cc-by-2.0)
What is 바카라 온라인 'cloud chamber'?
바카라 온라인 cosmic rays and 바카라 온라인ir fragments generated from 바카라 온라인 collision with 바카라 온라인 atmospheric particles are too small to be seen in naked eyes. It's so small that 바카라 온라인y just penetrate our bodies. Fortunately, 바카라 온라인re are a few ways to detect 바카라 온라인m, one of which is a cloud chamber.
When charged particles pass between supersaturated alcohol vapors near 바카라 온라인 dew point, 바카라 온라인 surrounding particles become ionized, and 바카라 온라인 alcohol vapors are condensed instantaneously, leaving a white trace in place as 바카라 온라인 cosmic ray passes through. So 바카라 온라인 white trace is not a cosmic ray, but 바카라 온라인 condensed alcohol clouds showing 바카라 온라인 cosmic rays passing by. Even with a small cloud chamber, you can see countless cosmic rays and 바카라 온라인ir fragments passing by. 바카라 온라인y are extremely fun to watch. I watched it for a couple of hours at 바카라 온라인 Exploratorium in San Francisco.
Cloud chamber in Exploratorium in San Francisco.
Cloud chamber can be made at home with only dry ice, alcohol, and water tank. Look at 바카라 온라인 link below.
