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Myth About Itchy Palms

26. And what year was it?

- I is that I want is to see the real battle of Thermopylae?
- See the Battle of Thermopylae?
- Yeah, you know, the film "300." That the Spartans, led by Leonidas, against Persians, with Xerxes I at the helm.
- But I do not understand ...

shot from the movie "300" that recreates the battle of Thermopylae.

The man had to spend some time explaining what was his plan. I was there in my office, listening to this amateur historian explained his idea for me to see, like video, a battle that had occurred 2500 years, thanks to astronomy. In the end, but not quite, I think I understood your idea. Try to explain it to you.

When you click the light switch, the bulb lights up immediately and instantly see its light even though we are far away. So it is not strange to think that light travels with infinite speed and therefore takes zero seconds to travel from one place to another, although these two places are far away.

While I personally that I have never believed. Let's see if I need a specific time to walk the 100 meters (I will not say how many seconds or minutes, I need to do so), much as Usain Bolt do it in less time, about 9.58 seconds, Bolt has also taken some . Ie not instantly materialize the target output at zero seconds. It seems incredible that anyone could think that something takes no time in moving from one place to another. Well, this is what I thought of light. That was instant, as the Nesquik.

Fortunately, we now know that light does not have an infinite speed, but simply go too fast (runs 300000 kilometers per second). Of course, that means that seemed instant. The light would take only about 0.3 microseconds to travel the Bolt runs 100 meters in 9.58 seconds.

The delay of the light would begin to notice only when we separated much of the bulb. If, for example, we situate to 300000 miles, the light would take a second to reach us. Is there anything to 300000 miles? Precisely because the moon is more or less at that distance. So, if we light a bulb on Earth, people would soon see the moon turn a second. And vice versa. If the lamp is lit on the moon, we would see light a second later.

Bulbs "in space? What are you talking about? No lights on the moon. At least until McDonalds is not going to the moon to put ads in the M giant to see it from Earth.

no artificial lights, but natural: The stars. For example, the Sun Does it take much sunlight to reach us? Then it takes about 8 minutes to travel from Sun to Earth. In other words, if the sun will go out now we found out to within 8 minutes. So I will be outlining in case you run out of light to read between now and 8 minutes.

Light takes a while to travel from the stars to Earth.

The speed of light allows us to define distances in a curious way. Let's see if the light takes a second to reach Earth's moon and 8 minutes to travel from Sun to Earth, what is closer to the Moon or the Sun? Clearly, no? The Sun

For we say that the Moon is a second-light and the sun is 8 light-minutes. A second is the distance light light travels in one second. One minute, the distance light travels in one minute. And we could define the time-light, week-light, light-year ...

When I mentioned to a friend light year, he asked me: What year was that? The light year is not a measure of time, but away. Is the distance traveled by a ray of light in one year.

Well, in short. When we see the stars and other heavenly bodies are actually seeing as they were in the past. For example, the farthest planet in our solar system, Neptune is 4 light-hours. We see it as it was 4 hours, well before you started reading this text (I was neither awake).


The nearest star to the Sun, Proxima Centauri, is 4 light-years. 4 years ago my son Bruno was not yet born (now 3 years). The brightest star in the sky, Sirius is 8.6 light years, about the time that has passed since the attack on the Twin Towers in New York. Spica, the brightest star in the constellation Virgo, is at 260 light-years. That is, the light we see from Spica was issued the same year of the death of JS Bach.

The light we see from the Pleiades are issued when Galileo first pointed a telescope at the sky 400 years ago. The light from the nebula NGC6188 is issued when building the pyramids of Egypt, 4500 years ago. The objects of the other side of the Milky Way, their light when the stable land populated by Neanderthals, 100,000 years ago. The Andromeda Galaxy, M31, one of the closest to ours, is 2 million light-years, Earth was inhabited by Homo habilis.

The light we receive from astronomical objects (Neptune, Proxima Centauri, Sirius, Pleiades, NGC6188 and M31) was issued long ago.

- Well, all I could ask to see Leonidas and his 300 at Thermopylae see a mirror that was found at twice the distance in light years that the time has passed since the battle.


Let's see ... The battle of Thermopylae took place 2400 years ago. NGC2170 is located about 2400 light years. In other words, they see the light of the Earth right now was emitted during the battle of Spartans and Persians.

But of course, assuming that there was a mirror there sending the image back to Earth would take another 2400 years to reach us back to us. So we need to find an object in the middle distance. If we put a mirror, for example in the Orion Nebula, M42, located about 1200 light years, the image of Leonidas I came M42 to 1200 years ago and now would be coming back to us bounced in the nice mirror.

NGC2170 (left) emitted its light when the earth of the Battle of Thermopylae.

M42 (right) is halfway.

- Niñaaaaaa! Turn on the video that will empezaaaaar ...!

Unfortunately, there are many reasons why this new version of 300 not going to get ever (not even with quality screaner) The geometric dilution (distant objects are weaker), the scattering of light by the particles of gas and dust between stars, the required increases Orion mirror to see the beard of Leonidas, blocks of light eclipses (for example, imagine that at the time of the battle Greece was at the other end of the earth and was not visible from M42). And besides, do you really expect to have a mirror in the Orion Nebula?

Well, but it's nice to blow up the imagination. I certainly, as we invent hyperspace, the first thing I would do is put a mirror in M42, returning to Earth and buy popcorn.

House Door Leaks When It Rains

25. Walking along the path of milk

I have come to blows a music CD rather curious. Seems to be a compilation of songs by different artists. It's called "Walking in the way of milk." The odd thing is that his CD cover is spherical. So is a semi-transparent ball that opens and reveals the CD, which has a picture of a bizarre swirl printed. What is it?

This is how you create must be the Milky Way.

The CD comes with a booklet that explains "This music CD contains songs from various authors with music related to a hypothetical trip for our Galaxy, the Milky Way. In this booklet you will find a brief explanation of each song and their relation to the Milky Way. We hope you enjoy it. "

So he gives me to open the area semi-transparent and begin to sound the first notes on the piano for the song" Halo "by Beyoncé.








Then I started reading the book:

"Our galaxy is completely enveloped in a spherical structure called Halo formed by old stars, which are believed to be the rest of the matter cloud from which formed the remaining structures of the Milky Way. In the halo of the Galaxy are the globular clusters, dense groupings of old stars. Some 150 known globular clusters. The orbits of stars around the galactic center are disordered. Some halo stars fall directly toward the center and others move in strange orbits. The latter stars are thought that might be part of any other dwarf galaxy swallowed by our own. "

The Milky Way is surrounded by a halo of very old stars.

The song Beyonce is just and move to the next track. Starts playing the song "DISCO" Ottawan.







"We traveled far toward the Galactic Disco, like the CD you have in your hands. The galactic disk can be divided into a thin disk, and another a little width, called thick disk. "

the galactic disk can be divided into thin disk and thick disk.

"Our Planet Earth, next to the Sun, would be the same distance from the center of the disc's third track on this CD to 2 / 3 of total radius of the disc. "

Paso, then to hear the third track on the disc. It could not be another song:" Here Comes the Sun "by The Beatles.







"Viewed from Earth, the galactic disk is what you see on a starry night as a bright spot in the sky. That is why we call our galaxy the Milky Way , because it seems spilled milk across the sky. In fact, mythological legend created the Milky Way result of a spill of milk from the breast of the goddess Hera, wife of Zeus, while nursing a baby boy named Hercules. "

Tintoretto This picture (above) is based on the mythological legend tells how he created the Milky Way (right) for breast milk Hera spilled over the sky trying to breastfeed Hercules.

Ja, ja. Great! The fourth track is the song from the soundtrack of the cartoon film, Hercules: Go the distance "by Alan Menken .








Hercules I was so eager to drink the milk of Hera he did much harm to grab and Hera Hercules departed, spilling their milk through the roof. "

" But the milky spots of heaven, if we see under high magnification see that this actually made stars. "
Change
track" Stars "by Simply Red







" All the stars we see during night are stars in our own galaxy. And in fact only those closest to the Sun, because the others are very weak and we get very light absorbed by the gas and dust between the stars. "

" The Milky Way is a spiral-type galaxy. "

Ah, yes! The whirlwind that silkscreened on the CD. Change the song and starts playing" Spiral "by Vangelis.







" It is believed that there are 2 or 3 spiral arms in the Milky Way and we are in an arm called the Orion Arm. " The spiral arms are regions where stars are brighter because they are newly created emitting much light. Ie in the regions between the arms there are stars, but they shine less and contrast are young stars that are forming these spiral arms. "

We are getting closer to the center of this album, latest songs. To see what we continue ...

" It is believed that the core of our galaxy consists of a bulb as bar. "

In the center of our galaxy there is a region with a long rod called

connecting different spiral arms.

Go, starts playing the song "Amores de Barra" by Ella Fitzgerald.








"The bar is an elongated structure connecting the different arms and shaped ellipsoid of revolution ..."

... In other words, cucumber.


"The galactic bulge contains old stars also similar to those that were in the galactic halo."


"All these stars in all parts of the galaxy orbit the center discussed. Therefore, in the center of the Milky Way is believed that there is a supermassive black hole that attracts all these stars. "

Start sound" Supermassive Black Hole "by Muse.







" We know of the existence of supermassive black hole by the effect gravitational pull it exerts on the stars near the galactic center (in the region of Sagittarius). "

Movement of stars around a dead star but carries

the same gravitational force millions of Suns.

This coincides with the definition of black hole mass and body very dark

to not let even light escape its gravitational field.

Well, last song: "Walking on the Milky Way" by OMD.







"This was the ride we've done in the way of milk, the Milky Way. There are still many things to know about our own galaxy and the stars the form. Hopefully in the future, this journey has many more songs, which will mean that many more things you know our host, the Milky Way. "

course to take as little, this walk around the Milky Way has become quite entertaining. The things I've seen in a short time. If you already knew that the music I could carry you away, but I did not know that much.


* The playlist with all songs in this post you can find the link on this Spotify.

Direct Tv Delete Program

in easy monthly installments.

link to desacargar " in easy monthly installments " contest tenth problem understanding discursive CREATIVE MIND. Good luck.

Skinny Women Big Breasts

24.

imagine that we'll buy a roast chicken on a Sunday any that do not feel like cooking. We went into the poultry and see that something is happening. There are many people arguing inside the store. " Must see! Since we have changed owners, it has lost much poultry.

And it's not for nothing. When we look at the machine to roast chicken, we realize that chickens are turning to an unusual shape. That is, the chickens are fixed on a metal stick, as usual, but instead of turning parallel to the machine, so that all parts of chicken are roasted equally, these chickens revolve around an axis perpendicular to the machine. And so people is so angry. All chickens in the store have your ass scorched and, instead, the head completely raw. Of course, I'm never going back to that store until the new owners once they learned the correct way to turn a chicken to roast.

For this is what happens to the planet Uranus. The rotation axis of Uranus is in the same plane as its orbit around the sun So much we twist and turn the sun always illuminates the same face of the planet and the other is always dark. And to top it also turns upside down the other planets!

The rotation axis of Uranus is tilted about 98 degrees.

Uranus brightness limit for the human eye can see without the aid of telescopes. So take so long to be discovered. Once discovered it was found that as previously observed, but had been confused with other objects. For example, Galileo had observed in 1612, but mistook it for a satellite of Jupiter, and at that time were very close. A little later (in 1691) Uranus was confused with a star. It was not until 1781 when William Herschel discovered it, but even he thought at first it was a comet.

William Herschel's life is curious. Herschel was a musician than a good day, ~ 35 to us, bought a book on astronomy. We liked it so much he decided to build himself a telescope and watch the sky. Well, after eight to ~ us in 1781, discovered Uranus and thanks to that could be remove music and spending time on astronomy. Despite having started so late to do astronomy discovered Uranus, 2 of 2 more satellites of Saturn. And he discovered also that the sun moves across the galaxy. Not bad, right? And they say that in science only succeeds in his youth, when not yet all your brain cells have died.

Drawing a telescope built by W. Herschel.

Uranus, like Jupiter or Saturn is a gas giant. Although it would be more appropriate to call Ice Giant, because gas accounts for only 15 \\% of its mass. Has a core ice gradually becomes liquid ocean as we move away from the center and then the outermost layer is the layer of gas that we see.

The most interesting satellite of Uranus's Miranda, who only see it as scary. To me, Miranda reminds me when a toddler plays to make mud balls and suddenly he gets tired and starts half of the ball that has been totally distorted by leaving. Well, this is Miranda. A huge collision has torn much its surface. In fact, it has the deep cliff in the Solar System (20 km high, 10 times more than the Grand Canyon).

The satellite of Uranus, Miranda, has the deep cliff in the Solar System.

The surface of Uranus is very dull. Is blue, but are not clouds, storms or any feature visible in its atmosphere. So you can imagine the disappointment in the control center of the Voyager 2 spacecraft when it took the first photographs of Uranus in 1985 and saw that blue billiard ball. But while Uranus gives us spectacular images, the number of questions raised in the exploration of Uranus was important. Why Uranus tour that so rare? What happened to Miranda? How are the rings of Uranus? It seems to be that true that the more deeply into a subject less we know about that topic.