artificial satellite

Eguchi Morio-san, 35 years (Mori-kun) - Matsumoto Jun 

He runs a restaurant called “Tratoria RIKI”.
He specialized in Italy to have his own restaurant.
For some reason, he did not want to be in touch with his former old companions…

Kiichi, 38 years (Kohara Yuki) 

Bus driver.
He works desperately because he is married and has 3 children

*Awww Concerned and responsible parent :’) Yuki come back T^T 

Akira, 35 years (Masaki Aiba)

Architect and first-class designer
Designed a memorial library in the reconstructed old site of Makuhara where the artificial satellite fell 20 years ago …

Arabic Vocabulary #2 Space


Space - الفضاء 

The planets - الكواكب:

  • Mercury - عطارد
  • Venus - الزهرة
  • Earth - الأرض
  • Mars - المريخ
  • Jupiter - المشتري
  • Saturn - زحل
  • Uranus - اورانوس
  • Neptune - نبتون
  • Pluto - بلوتو

Space vocabulary:

  •  Stars - نجوم
  • Solar system - المجموعة الشمسية
  • Galaxy - مجرة
  • Astronomer - عالم فلك
  • Space ship - سفينة فضاء
  • Space vehicle - مركبة فضاء
  • Explosion - انفجار
  • Heavenly bodies - أجرام فضائية
  • Artificial satellite -  قمر صناعي
  • Atomic waste - نفايات ذرية
  • Solar reactor - مفاعل شمسي
  • Space equipment - معدات الفضاء
  • Atomic energy - طاقة ذرية

Hope you find this helpful, feel free to ask me any questions :)
~Rahaf
@meilingua see this :)

3753 Cruithne - The other Moon

As recently as 1997, we discovered that another body, 3753 Cruithne, is what’s called a quasi-orbital satellite of Earth. This simply means that Cruithne doesn’t loop around the Earth in a nice ellipse in the same way as the moon, or indeed the artificial satellites we loft into orbit. Instead, Cruithne scuttles around the inner solar system in what’s called a “horseshoe” orbit.

anonymous asked:

Hey, so I have a planet that has two suns. I was trying to have it so one sun would be up while the other sun was on the other side of the world, and then it would switch making it so everywhere was daylight all the time. Is this possible?

With science-as-we-know-it and only two suns, it is not. To set up the system as you’ve described it, it would have to look something like this.

(A, B, and C are positions in time, so that at time A, Planet and Star2 are at their respective As, and the same for B and C.)

This setup wont work to keep Planet in total daylight on all sides because Planet and Star2 orbit around Star1 at different speeds. The closer you orbit a body, the faster you need to go to stay in orbit.

So, while both Planet and Star1 are at position A, the Planet has no nighttime. But, when Planet moves to position B, Star2 hasn’t moved quite as far and there is a part of Planet that is turned away from both stars. When they’re at position C, Planet sees both stars during the day, and has a regular night side that is turned away from both stars.

But, fear not, there are some ways to have a planet with no night. What it results in is some very spectacular, and very strange systems.

Solution 1: Multiple Stars. I mean A Lot of Them.

Situation: Your planet is in a star system with multiple stars - a lot of stars - six, eight, maybe even a dozen or more. So many that anywhere you are on your planet you can see one or more stars. You would have periods of bright day, very bright day, and not-so bright day. Rarely would you have no stars in the sky, and this would bring the occasional truly dark night.

Azimov postulates a planet like this in his novel Nightfall. Lagash is a thriving planet in a system with six suns, and gets nighttime only once every 2000 years. The people know nothing of the rest of the universe and think their planet and suns are all that exists. A couple of scientists predict when the next nightfall happens. and realizes that people will be traumatized by the darkness. When night arrives and the citizens of Lagash see the universe of stars in the night sky, they panic and destroy their own civilization - something they do every time it gets dark.

Hard-Science: Smaran Deshmukh and Jayant Murthy of the University of Bonn, have done the math and concluded that a system like Lagash’s is plausible, but might only be stable over a few hundred years. They continue to state that other solutions may be possible that are much more stable over a much longer periods.

Summary: Plausible, but not likely. Of course. in science-fiction, that’s good enough.

Solution 2: Artificial Stars Around the Planet

Situation: Your planet orbits one star, but your planet has several satellites that radiate heat and light in orbit around it. These mini-suns keep your planet bathed in total daylight. Actually, with a belt of artificial sun-satellites, a planet wouldn’t even need a real sun, and could just be travelling between stars.

Hard-Science: Those mini-suns could be small fusion or anti-matter reactors, or be powered by some sort of magical energy, according to what flavor you want your world to have.

Summary: Plausible. Mini-suns powered by SCIENCE or SORCERY are quite believable. They’d have to use a lot of fuel or pull energy from another dimension or whatever, but that’s just details.

Solution 3: We’re Really at the Center of the Universe And OhMyGodWereAllGoingToDie!

Situation: Your planet is ‘orbited’ by it’s stars.

Hard-Science: I lied. It’s actually possible to have a planet without night with only two stars, but I wouldn’t want to live on that planet.

The binary stars orbit around their mutual center or gravity called the barycenter. In the diagram below, that’s marked with a small red cross. If your planet was located right at that balance point, it would look like the stars were orbiting around the planet, and your planet would have no night.

The barycenter is also a Lagrange point between the two stars - an L1 point, and we know they’re unstable.

Summary: While technically possible, this situation is very very very unstable and is very very unlikely to occur naturally - and if it did. it wouldn’t last long. Very soon (like within a couple of hundred years or less), the planet would either drift into one of the stars or be ejected from the system entirely. Neither one would be very good for the planet.

Did I mention that this situation is very unstable?

However, if you have some sort of super-technology or wizardry, which would prevent the planet from drifting off, it could work. But with that power, why have real stars? Put up some artificial ones, move the planet, and you don’t have to live in a cosmic death trap. :-)

Solution 4: My God - It’s Full of Stars!

Situation: Your planet and it’s star is inside a globular cluster - a region of space that is just lousy with stars. Someone on your planet could see 100 times more stars than we can see with the naked eye from Earth. The night sky would shine with a total brightness of a couple-dozen full moons. Nighttime would be a slightly dim twilight instead of dark night.

Hard-Science:  The stars around Earth are scatter about with an average density of 0.14 stars per cubic parsec (a parsec is 3.26 light-years). The stars within a dense globular cluster - like the one at 47 Tucanae - packs in several hundred stars in one cubic parsec.

Add more stars to the cluster to make the night sky brighter - but be careful! Adding in too many stars and you could cook your planet with too much radiation.

Each star would still be quite a distance away. Far enough that they would appear as points of light to the naked eye. But, there would be so many of them and they would be so very bright. From Earth, we can see 29 1st magnitude (very bright, like Sirius or Canopus) stars. From inside a globular cluster, you could see 10,000 or them,

Summary: Quite plausible, and very beautiful.

November 3 1957, The Soviet Union launches the first animal into space—a dog name Laika—aboard the Sputnik 2 spacecraft.

Laika, lived as a stray on the Moscow streets before being enlisted into the Soviet space program. Laika survived for several days as a passenger in the USSR’s second artificial Earth satellite, kept alive by a sophisticated life-support system. Electrodes attached to her body provided scientists on the ground with important information about the biological effects of space travel. She died after the batteries of her life-support system ran down.

anonymous asked:

What do you think would happen if earth was suddenly cut off from all artificial satellites (paranormal reasons)? I mean, nowadays what works thanks to artificial satellites?

  • No cable TV
  • No GPS
  • GPS is also important for time-keeping, so traffic lights all go to red in a few hours, computerized water treatment has to switch to manual, and the internet stops about fourteen hours later
  • No telephones (especially for international calls)
  • Large newspapers would be disrupted (because they share printing data over satellite communication)
  • No military drones
  • Soldiers, ships, and aircraft would be cut off from each other because many military forces use satellites to ensure secure communication
  • World leaders use it, too, so talking to someone across the globe would be difficult
  • Pilots lose contact with air traffic control
  • Container ships cannot contact each other or base
  • Worse weather reports 
  • Breakdown of food transport chains
  • Long term: No satellite data for crop health, no images or maps for rescue workers, no long term records of climate

I hope you want to start an apocalypse, because that’s where this is heading.

Has someone ever told you that you are too difficult to love?”

She poured herself another mug of lukewarm coffee. I sat on the grey sofa reading Sputnik Sweetheart by Murakami. She sat right beside and clasped the end of her dotted skirt.

“People have left me for it. I don’t blame them, though. On most days, loving me is a task.” After saying, she took the book from my hand. She inhaled the scent of the pages. “Isn’t Sputnik the name of the first artificial satellite?” I nodded.

“So, you don’t hold it against those people?” I asked without meeting her gaze. From a distance, I could hear the sound of a Ferris wheel. “Not really.” Her voice brought me back.

“Don’t all relations disappoint in the end? I mean everyone leaves. Sooner or later, people see the blemishes.The imperfections overwhelm them. Staying will mean accepting and efforts. Few are ready to do it.” She fiddled with her hair as I devoured another cigarette.

“So, you don’t just believe in love, then?” She gazed into my eyes and paused as if to frame her words carefully. “I do. I just find people who are as difficult to love. In that way, the struggle to love becomes the entire point.”

She tapped a button on remote and filled the room with music, rhythms, and sound. I read Murakami while she gazed into nowhere thinking about loss, love, and how lonely must those satellites feel when they quietly stroll through the sky.

—  The Honest Musings
2

October 4th 1957: Sputnik launched

On this day in 1957, the Soviet Union launched the first artificial satellite - Sputnik - into space at 10.29pm from the Tyuratam base in the Kazakh Republic. In 1954, the International Council of Scientific Unions called for artificial satellites to be launched between July 1957 and December 1958, as this was when cycles of solar activity would be at a high. A year later, the United States announced plans to launch a satellite. However, the Russians beat America to it, and launched Sputnik (Russian for ‘satellite’) in 1957. The satellite, about the size of a beach ball and weighing 83.6kg, was designed and built by a team under Mikhail Khomyakov, and orbited the earth once every 98 minutes. Sputnik’s launch inaugurated a new era in the Cold War, beginning the space race and escalating tensions between the United States and the Soviet Union. In November, the Russians launched Sputnik II, which carried a dog called Laika into space; the original Sputnik burned up in the atmosphere a few months later. The United States, concerned by the Soviet Union’s technological superiority, rushed to launch their own satellite. In January 1958, the United States successfully launched the Explorer I, and in order to continue such research established NASA (National Aeronautics and Space Administration) in July 1958. With the launch of Sputnik the space race was in full motion, as the United States and Soviet Union continued to attempt to best eachother in technological advances. The USSR sent the first man to space in 1961, and achieved a number of space firsts, but it was the United States who successfully landed on the moon in 1969. The Sputnik launch was one of the defining moments of the twentieth century, as not just did it trigger the space race, but it marked a crowning achievement in space technology.

Did you know that the International Space Station spans an entire U.S. football field? It is the largest artificial satellite in orbit and can be seen by the naked eye when viewing the sky at the appropriate time. It weighs nearly 1,000,000 pounds and has more livable space than a typical six-bedroom house.

The astronauts will be sleeping during the Super Bowl. However, according to NASA, flight controllers will uplink the game to the crew for them to watch later.

2

MODELLING A SOLAR STORM

Background: We recently published a paper that examines a striking phenomena: solar eruptions. The paper elegantly models how these eruptions, known as coronal mass ejections, are produced from the ejection of twisted magnetic ropes.

Coronal mass ejections are large-scale eruptions in the solar atmosphere that consist of a giant cloud of solar plasma embedded in a magnetic field. They have the potential to produce solar storms here on Earth that can damage artificial satellites and disrupt ground-based power generation.

Design challenge:  I was taken with the figures from the paper, specifically fig 4 (above) showing the evolution and eruption of the twisted flux rope. We asked Tahar Amari, one of the authors, to submit a few of his other visualisations to be considered for the cover.  (We loved the rope itself, but on the cover we thought we should show something that was more obviously on the sun.)

Amari sent us several striking images, but in the end we decided on the cover above, as it clearly showed several key elements: the twisted rope is clearly seen in blue (on the left); plus, the whole model can be seen in action, complete with a map of the sun’s more active regions (using a triangular grid). All of these elements combined give a stunningly complete picture of a solar storm.

I asked Amari to send along specifics about his modelling technique. This from Amari:

“This image was produced using a new high performance unstructured mesh based numerical code MESHMHD, which solves the physical equations relevant to the Sun’s atmosphere. With its adaptive refinement scheme, the code solves both the large scale structure of the global Sun as well as the smaller active region scale at the very high resolution of the data provided by the NASA Solar Dynamics Observatory mission.

Rendering of the solution was performed using Ensight software, with several specific issues.

First, it was important to draw only a set of selected field lines of the magnetic field, and not all of them which would fill all the volume, but in particular those who exhibit  magnetic ropes (in blue), with variable diameters of the ropes to enlighten the main structures from the background ones.

Also, to show the power of the adaptive mesh refinement computational model,  the triangles on the surface of the Sun were not color-filled, but only their edges. For the high resolution cover, those edges had to be drawn with  an optimal thickness.”

The final step was to create the warm glow of the sun with just the right orange-yellow colour. Using a very specific color palette, implying a balance of various hues (actually selected by Amari’s 14-year  daughter, Myriam!) we were able to create the impression of fire-like light  of the Sun, from each active region.

-Kelly Krause

youtu.be
Proof The Moon Is A Hollow Artificial Satellite? 1/15/17
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東向き。

恵方巻きの話ではない。

今日の北朝鮮のロケット発射について、アメリカ政府は「一部は宇宙空間に到達したようだ」と分析したという報道を見て、『へー、南に向けて発射したわりに宇宙空間まで届いたんだ…』と、ちょっと思った。

ロケット類の打ち上げは、地球の自転の力を利用して無駄なく打ち上げる、つまり、地球の自転方向(東向き)に向けてロケットを打ち上げることが学理的な方法。

とはいえ、あの「謎の技術力」の「あの国」がロケットですって言っているのは眉唾もので、ワタクシ個人的にはミサイルだと思っている。
これ以上のことは中国やロシアのアレがゴニョーな話になるので、深堀りはしない。

ちな、イスラエルは、東に向けて打ち上げると中東諸国から物理的にも政治的にもガッツリ迎撃されるため、地中海へ向けて西回りに打ち上げられる。

youtube

58 years ago on this day, the first artificial satellite Sputnik 1 was launched into orbit. It caused the Sputnik crisis in the US, leading to the creation of NASA and the beginning of the space race. Here is a historical CBS news report two days after the launch of the satellite.