Latest Posts by rulandtafego - Page 2
MotoGP 2019 🤣🤣🤣
"Jika kamu berkata negatif, kamu tidak bisa berharap hidup yg positif. Jika perkataanmu buruk, hidupmu juga akan buruk." (Ps. Joel Osteen)
Camp proAAD Bogor 2019 👍
I SURRENDER ALL... @ndcministry • • • #agustus #jesusmysavior #jesuslovesyou #godblessyou https://www.instagram.com/p/B0m1CS2Fd2P/?igshid=1qh3e6p66u5hc
😍😍
Very important video
Tulisan Kuno berumur lebih dari 3.500 tahun, yang mampu mengubah bahkan sudah mengubah hidup saya dan saudara.. dan yang sudah mengubah dunia.. Alkitab, Firman Tuhan! • 𝐁𝐚𝐜𝐚, 𝐑𝐞𝐧𝐮𝐧𝐠𝐤𝐚𝐧, 𝐋𝐚𝐤𝐮𝐤𝐚𝐧 𝐝𝐚𝐧 𝐒𝐚𝐦𝐩𝐚𝐢𝐤𝐚𝐧 𝐤𝐞𝐩𝐚𝐝𝐚 𝐬𝐞𝐦𝐮𝐚 𝐨𝐫𝐚𝐧𝐠, dan hidup kita akan berbeda. 😇 To GOD be the Glory! "𝘼𝙣𝙘𝙞𝙚𝙣𝙩 𝙒𝙤𝙧𝙙𝙨" @fountainviewacademy Holy words long preserved for our walk in this world, They resound with God's own heart Oh, let the Ancient words impart. • Words of Life, words of Hope Give us strength, help us cope In this world, where e'er we roam Ancient words will guide us Home. • Ancient words ever true Changing me, and changing you. We have come with open hearts Oh let the ancient words impart. • Holy words of our Faith Handed down to this age. Came to us through sacrifice Oh heed the faithful words of Christ. #jesusmysavior #jesuslovesyou #godblessyou https://www.instagram.com/p/Bz1-nHcFYU4/?igshid=191s4hj6s775v
Tuhan tidak kelihatan, tapi Dia benar-benar ada. Percaya atau tidak percaya, hal itu tidak akan pernah mengubah sejarah bahwa Dia benar-benar pernah datang ke bumi dan Dia benar-benar nyata. 😅😅👍👍
God bless America! Trump_Pence 2020 🇺🇸💪👍
Pemuda adalah masa depan gereja, ujung tombak gereja, yang harus melayani sekarang bukan nanti!
Dear Christian: Did you spend time with God today? 😊🙏
Not impossible, because impossible is nothing!
Bagi Tuhan, tidak ada yang mustahil. Masalah sebesar apapun, bahkan dalam situasi yang sulit sekalipun, Tuhan sanggup untuk membuat segala sesuatu menjadi mungkin. Percayalah dan bersandarlah kepada Tuhan, maka pasti akan ada jalan keluar, Amen! 😇🙏
God be with you
Janganlah takut, sebab Aku menyertai engkau; janganlah bimbang, sebab Aku ini Allahmu. (Yesaya 41:10)
Jesus loves you!
God be with you. Amen! 😇
Semua ada dalam kontrolnya Tuhan 😇
Allah turut bekerja dalam segala sesuatu untuk mendatangkan kebaikan bagi mereka yang mengasihi Dia.
(Roma 8:28)
Save the World
Bumi dan segala yg ada di dalamnya adalah hadiah terbesar dan terindah dari Tuhan untuk manusia dan makhluk hidup lainnya. Sebagai "kawan sekerja Allah", mari kita turut menjaga dan merawat bumi kita supaya tetap indah dan supaya generasi yg akan datang juga bisa menikmatinya. "Dengan merawat dan melestarikan hutan dan laut kita, membuang sampah pada tempatnya, tidak merusak hutan dan terumbu karang, berarti kita juga sudah ikut berpartisipasi dalam menjaga dan menyelamatkan bumi kita". Glory to God!
#savetheworld
#glorytoGod
#savetheplanet
The fact that the Chernobyl disaster and Berlin wall are fading out as general knowledge is a bit scary
What Space Weather Means for You
In space, invisible, fast-moving particles from the Sun and other sources in deep space zip around, their behavior shaped by dynamic electric and magnetic fields. There are so few of these particles that space is considered a vacuum, but what’s there packs a punch. Together, we call all of this invisible activity space weather — and it affects our technology both in space and here on Earth.
This month, two new missions are launching to explore two different kinds of space weather.
Scrambled signals
Many of our communications and navigation systems — like GPS and radio — rely on satellites to transmit their signals. When signals are sent from satellites down to Earth, they pass through a dynamic zone on the upper edge of Earth’s atmosphere called the ionosphere.
Gases in the ionosphere have been cooked into a sea of positive- and negative-charged particles by solar radiation. These electrically charged particles are also mixed in with neutral gases, like the air we breathe. The charged particles respond to electric and magnetic fields, meaning they react to space weather. Regular weather can also affect this part of the atmosphere.
Influenced by this complicated web of factors, structured bubbles of charged gas sometimes form in this part of the atmosphere, particularly near the equator. When signals pass through these bubbles, they can get distorted, causing failed communications or inaccurate GPS fixes.
Right now, it’s hard to predict just when these bubbles will form or how they’ll mess with signals. The two tiny satellites of the E-TBEx mission will try to shed some light on this question.
As these CubeSats fly around Earth, they’ll send radio signals to receiving stations on the ground. Scientists will examine the signals received in order to see whether — and if so, how much — they were jumbled as they traveled through the upper atmosphere and down to Earth.
All together, this information will give scientists a better idea of how these bubbles form and change and how much they disrupt signals — information that could help develop strategies for mitigating these bubbles’ disruptive effects.
Damaged satellites
The high-energy, fast-moving particles that fill space are called radiation. Every single spacecraft — from scientific satellites sprinkled throughout the solar system to the communications satellites responsible for relaying the GPS signals we use every day — must weather the harsh radiation of space.
Strikes from tiny, charged particles can spark memory damage or computer upsets on spacecraft, and over time, degrade hardware. The effects are wide-ranging, but ultimately, radiation can impact important scientific data, or prevent people from getting the proper navigation signals they need.
Space Environment Testbeds — or SET, for short — is our mission to study how to better protect satellites from space radiation.
SET aims its sights on a particular neighborhood of near-Earth space called the slot region: the gap between two of Earth’s vast, doughnut-shaped radiation belts, also known as the Van Allen Belts. The slot region is thought to be calmer than the belts, but known to vary during extreme space weather storms driven by the Sun. How much it changes exactly, and how quickly, remains uncertain.
The slot region is an attractive one for satellites — especially commercial navigation and communications satellites that we use every day — because from about 12,000 miles up, it offers not only a relatively friendly radiation environment, but also a wide view of Earth. During intense magnetic storms, however, energetic particles from the outer belt can surge into the slot region.
SET will survey the slot region, providing some of the first day-to-day weather measurements of this particular neighborhood in near-Earth space. The mission also studies the fine details of how radiation damages instruments and tests different methods to protect them, helping engineers build parts better suited for spaceflight. Ultimately, SET will help other missions improve their design, engineering and operations to avoid future problems, keeping our space technology running smoothly as possible.
For more on our space weather research, follow @NASASun on Twitter and NASA Sun Science on Facebook.
Meet the other NASA missions launching on the Department of Defense’s STP-2 mission and get the latest updates at nasa.gov/spacex.
Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com.
Pride cacti!!!! I originally just made the ace (cactace) and aro ones, but…..then I got carried away…. They’re all gonna be stickers eventually, and the older (slightly less detailed) versions of the ace and aro ones are available already, here!
edit: they’re on society6! and the stickers are available here!!
made A Frog with the bi flag colors!!
since everybody seemed to like this lil guy and since frogs are awesome i wanted to do another pride frögé :3
Palalangon Kampung Kristen di Wilayah Santri
Palalangon Kampung Kristen di Wilayah Santri
Gereja Sahabat.id Palalangon menjadi kampung Kristen yang eksis di tengah suku Sunda yang Islami. Penduduknya menjunjung tinggi warisan leluhur dan mencantumkan marga di belakang namanya. Tak sulit menebak jika ada orang yang menggunakan nama belakang Simanjuntak atau Situmorang. Bisa dipastikan mereka beretnis Batak. Atau jika menggunakan marga Wattimena dan Marantika. Mereka pasti berasal…
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John dan Carol McGuirk - Perancis - Gereja Paris Dan Acara Amal Untuk Tuna Wisma Di Tengah Tragedi Pemboman Prancis
John dan Carol McGuirk – Perancis – Gereja Paris Dan Acara Amal Untuk Tuna Wisma Di Tengah Tragedi Pemboman Prancis
Sabtu pagi, 14 November 2015, kami bangun di kota yang sangat sunyi. Biasanya, kota sudah bising dengan suara orang-orang berangkat ke kantor, mengerjakan pekerjaan rumah, membawa anak-anak ke sekolah, membawa anjing jalan-jalan, bertemu teman-teman, atau ikut kegiatan seni yang selalu ada di sekitar kami di kota yang indah ini. Namun, kemarin, suasana sangat sepi. Sepi yang aneh. Orang-orang…
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Lol
GSI El-Syadday Bintaro
Mengenal Kaum Quaker atau Perkumpulan Para Sahabat
Mengenal Kaum Quaker atau Perkumpulan Para Sahabat
gerejasahabat.id bergambar seorang lelaki berpakaian dan bertopi hitam. Topi dan pakaiannya tampak kuno. Pada umumnya orang memang mengenal Quaker terbatas pada apa yang digambarkan di kaleng havermout itu. Mereka adalah dianggap orang-orang yang berpakaian dan bertutur kata dengan gaya kuno. Mereka dianggap juga sebagai sekelompok yang sangat cinta damai, tertutup terhadap dunia luar dan hidup…
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Wowo😃👍👍😍
Dolphins are so smart
10 Things Einstein Got Right
One hundred years ago, on May 29, 1919, astronomers observed a total solar eclipse in an ambitious effort to test Albert Einstein’s general theory of relativity by seeing it in action. Essentially, Einstein thought space and time were intertwined in an infinite “fabric,” like an outstretched blanket. A massive object such as the Sun bends the spacetime blanket with its gravity, such that light no longer travels in a straight line as it passes by the Sun.
This means the apparent positions of background stars seen close to the Sun in the sky – including during a solar eclipse – should seem slightly shifted in the absence of the Sun, because the Sun’s gravity bends light. But until the eclipse experiment, no one was able to test Einstein’s theory of general relativity, as no one could see stars near the Sun in the daytime otherwise.
The world celebrated the results of this eclipse experiment— a victory for Einstein, and the dawning of a new era of our understanding of the universe.
General relativity has many important consequences for what we see in the cosmos and how we make discoveries in deep space today. The same is true for Einstein’s slightly older theory, special relativity, with its widely celebrated equation E=mc². Here are 10 things that result from Einstein’s theories of relativity:
1. Universal Speed Limit
Einstein’s famous equation E=mc² contains “c,” the speed of light in a vacuum. Although light comes in many flavors – from the rainbow of colors humans can see to the radio waves that transmit spacecraft data – Einstein said all light must obey the speed limit of 186,000 miles (300,000 kilometers) per second. So, even if two particles of light carry very different amounts of energy, they will travel at the same speed.
This has been shown experimentally in space. In 2009, our Fermi Gamma-ray Space Telescope detected two photons at virtually the same moment, with one carrying a million times more energy than the other. They both came from a high-energy region near the collision of two neutron stars about 7 billion years ago. A neutron star is the highly dense remnant of a star that has exploded. While other theories posited that space-time itself has a “foamy” texture that might slow down more energetic particles, Fermi’s observations found in favor of Einstein.
2. Strong Lensing
Just like the Sun bends the light from distant stars that pass close to it, a massive object like a galaxy distorts the light from another object that is much farther away. In some cases, this phenomenon can actually help us unveil new galaxies. We say that the closer object acts like a “lens,” acting like a telescope that reveals the more distant object. Entire clusters of galaxies can be lensed and act as lenses, too.
When the lensing object appears close enough to the more distant object in the sky, we actually see multiple images of that faraway object. In 1979, scientists first observed a double image of a quasar, a very bright object at the center of a galaxy that involves a supermassive black hole feeding off a disk of inflowing gas. These apparent copies of the distant object change in brightness if the original object is changing, but not all at once, because of how space itself is bent by the foreground object’s gravity.
Sometimes, when a distant celestial object is precisely aligned with another object, we see light bent into an “Einstein ring” or arc. In this image from our Hubble Space Telescope, the sweeping arc of light represents a distant galaxy that has been lensed, forming a “smiley face” with other galaxies.
3. Weak Lensing
When a massive object acts as a lens for a farther object, but the objects are not specially aligned with respect to our view, only one image of the distant object is projected. This happens much more often. The closer object’s gravity makes the background object look larger and more stretched than it really is. This is called “weak lensing.”
Weak lensing is very important for studying some of the biggest mysteries of the universe: dark matter and dark energy. Dark matter is an invisible material that only interacts with regular matter through gravity, and holds together entire galaxies and groups of galaxies like a cosmic glue. Dark energy behaves like the opposite of gravity, making objects recede from each other. Three upcoming observatories – Our Wide Field Infrared Survey Telescope, WFIRST, mission, the European-led Euclid space mission with NASA participation, and the ground-based Large Synoptic Survey Telescope — will be key players in this effort. By surveying distortions of weakly lensed galaxies across the universe, scientists can characterize the effects of these persistently puzzling phenomena.
Gravitational lensing in general will also enable NASA’s James Webb Space telescope to look for some of the very first stars and galaxies of the universe.
4. Microlensing
So far, we’ve been talking about giant objects acting like magnifying lenses for other giant objects. But stars can also “lens” other stars, including stars that have planets around them. When light from a background star gets “lensed” by a closer star in the foreground, there is an increase in the background star’s brightness. If that foreground star also has a planet orbiting it, then telescopes can detect an extra bump in the background star’s light, caused by the orbiting planet. This technique for finding exoplanets, which are planets around stars other than our own, is called “microlensing.”
Our Spitzer Space Telescope, in collaboration with ground-based observatories, found an “iceball” planet through microlensing. While microlensing has so far found less than 100 confirmed planets, WFIRST could find more than 1,000 new exoplanets using this technique.
5. Black Holes
The very existence of black holes, extremely dense objects from which no light can escape, is a prediction of general relativity. They represent the most extreme distortions of the fabric of space-time, and are especially famous for how their immense gravity affects light in weird ways that only Einstein’s theory could explain.
In 2019 the Event Horizon Telescope international collaboration, supported by the National Science Foundation and other partners, unveiled the first image of a black hole’s event horizon, the border that defines a black hole’s “point of no return” for nearby material. NASA’s Chandra X-ray Observatory, Nuclear Spectroscopic Telescope Array (NuSTAR), Neil Gehrels Swift Observatory, and Fermi Gamma-ray Space Telescope all looked at the same black hole in a coordinated effort, and researchers are still analyzing the results.
6. Relativistic Jets
This Spitzer image shows the galaxy Messier 87 (M87) in infrared light, which has a supermassive black hole at its center. Around the black hole is a disk of extremely hot gas, as well as two jets of material shooting out in opposite directions. One of the jets, visible on the right of the image, is pointing almost exactly toward Earth. Its enhanced brightness is due to the emission of light from particles traveling toward the observer at near the speed of light, an effect called “relativistic beaming.” By contrast, the other jet is invisible at all wavelengths because it is traveling away from the observer near the speed of light. The details of how such jets work are still mysterious, and scientists will continue studying black holes for more clues.
7. A Gravitational Vortex
Speaking of black holes, their gravity is so intense that they make infalling material “wobble” around them. Like a spoon stirring honey, where honey is the space around a black hole, the black hole’s distortion of space has a wobbling effect on material orbiting the black hole. Until recently, this was only theoretical. But in 2016, an international team of scientists using European Space Agency’s XMM-Newton and our Nuclear Spectroscopic Telescope Array (NUSTAR) announced they had observed the signature of wobbling matter for the first time. Scientists will continue studying these odd effects of black holes to further probe Einstein’s ideas firsthand.
Incidentally, this wobbling of material around a black hole is similar to how Einstein explained Mercury’s odd orbit. As the closest planet to the Sun, Mercury feels the most gravitational tug from the Sun, and so its orbit’s orientation is slowly rotating around the Sun, creating a wobble.
8. Gravitational Waves
Ripples through space-time called gravitational waves were hypothesized by Einstein about 100 years ago, but not actually observed until recently. In 2016, an international collaboration of astronomers working with the Laser Interferometer Gravitational-Wave Observatory (LIGO) detectors announced a landmark discovery: This enormous experiment detected the subtle signal of gravitational waves that had been traveling for 1.3 billion years after two black holes merged in a cataclysmic event. This opened a brand new door in an area of science called multi-messenger astronomy, in which both gravitational waves and light can be studied.
For example, our telescopes collaborated to measure light from two neutron stars merging after LIGO detected gravitational wave signals from the event, as announced in 2017. Given that gravitational waves from this event were detected mere 1.7 seconds before gamma rays from the merger, after both traveled 140 million light-years, scientists concluded Einstein was right about something else: gravitational waves and light waves travel at the same speed.
9. The Sun Delaying Radio Signals
Planetary exploration spacecraft have also shown Einstein to be right about general relativity. Because spacecraft communicate with Earth using light, in the form of radio waves, they present great opportunities to see whether the gravity of a massive object like the Sun changes light’s path.
In 1970, our Jet Propulsion Laboratory announced that Mariner VI and VII, which completed flybys of Mars in 1969, had conducted experiments using radio signals — and also agreed with Einstein. Using NASA’s Deep Space Network (DSN), the two Mariners took several hundred radio measurements for this purpose. Researchers measured the time it took for radio signals to travel from the DSN dish in Goldstone, California, to the spacecraft and back. As Einstein would have predicted, there was a delay in the total roundtrip time because of the Sun’s gravity. For Mariner VI, the maximum delay was 204 microseconds, which, while far less than a single second, aligned almost exactly with what Einstein’s theory would anticipate.
In 1979, the Viking landers performed an even more accurate experiment along these lines. Then, in 2003 a group of scientists used NASA’s Cassini Spacecraft to repeat these kinds of radio science experiments with 50 times greater precision than Viking. It’s clear that Einstein’s theory has held up!
10. Proof from Orbiting Earth
In 2004, we launched a spacecraft called Gravity Probe B specifically designed to watch Einstein’s theory play out in the orbit of Earth. The theory goes that Earth, a rotating body, should be pulling the fabric of space-time around it as it spins, in addition to distorting light with its gravity.
The spacecraft had four gyroscopes and pointed at the star IM Pegasi while orbiting Earth over the poles. In this experiment, if Einstein had been wrong, these gyroscopes would have always pointed in the same direction. But in 2011, scientists announced they had observed tiny changes in the gyroscopes’ directions as a consequence of Earth, because of its gravity, dragging space-time around it.
BONUS: Your GPS! Speaking of time delays, the GPS (global positioning system) on your phone or in your car relies on Einstein’s theories for accuracy. In order to know where you are, you need a receiver – like your phone, a ground station and a network of satellites orbiting Earth to send and receive signals. But according to general relativity, because of Earth’s gravity curving spacetime, satellites experience time moving slightly faster than on Earth. At the same time, special relativity would say time moves slower for objects that move much faster than others.
When scientists worked out the net effect of these forces, they found that the satellites’ clocks would always be a tiny bit ahead of clocks on Earth. While the difference per day is a matter of millionths of a second, that change really adds up. If GPS didn’t have relativity built into its technology, your phone would guide you miles out of your way!
Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com.