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關鍵詞:black hole
概念:
NORMALLY BLACK HOLES - ESPECIALLY SMALL, QUIESCENT BLACK HOLES - ARE VERY HARD TO SEE. SAGITTARIUS A*, THE SUPERMASSIVE BLACK HOLE AT THE CENTRE OF THE MILKY WAY, IS RELATIVELY QUIET, BUT IT"S ALSO EASY, BECAUSE WE CAN TRACK THE ORBITS OF THINGS MOVING AROUND IT.
「THE FACT THAT WE NOW SEE THIS IN THREE SYSTEMS STRENGTHENS THE IDEA THAT IT IS A UNIFYING CHARACTERISTIC OF SUCH GROWING BLACK HOLES,” SAID POSHAK GANDHI OF SOUTHHAMPTON, WHO FOUND THE OTHER TWO EXAMPLES. “IF TRUE, THIS MUST BE TELLING US SOMETHING FUNDAMENTAL ABOUT HOW PLASMA FLOWS AROUND BLACK HOLES OPERATE.
AS THE STAR WAS DRAWN IN BY THE BLACK HOLE, IT WAS PULLED APART BY THE INTENSE GRAVITY OF THE BLACK HOLE UNTIL EVENTUALLY THE STAR WAS STRETCHED INTO A LONG STRAND OF GAS. SOME OF THE SHREDDED STELLAR GUTS WERE SPIT BACK INTO SPACE. THE REST LOOPED AROUND THE BLACK HOLE, CRASHING INTO ITSELF AND FORMING A SPIRALING RING OF GLOWING, HOT GAS CALLED AN ACCRETION DISK.
IN THE 2014 MOVIE INTERSTELLAR, ASTRONAUTS INVESTIGATE PLANETS ORBITING A SUPERMASSIVE BLACK HOLE AS POTENTIAL HOMES FOR HUMAN LIFE. A SUPERMASSIVE BLACK HOLE WARPS SURROUNDING SPACE-TIME, ACCORDING TO EINSTEIN’S THEORY OF GENERAL RELATIVITY, AND AT LEAST ONE OF THE PLANETS IN THE MOVIE, CALLED MILLER’S PLANET, EXPERIENCED TIME PASSING AT A SLOWED-DOWN RATE. FOR EACH HOUR THE ASTRONAUTS SPENT ON THE PLANET, SEVERAL YEARS PASSED OUTSIDE THE BLACK HOLE’S INFLUENCE.
SPACE SCIENTISTS ARE SKEPTICAL ABOUT THE IDEA OF LIFE EXISTING ON A PLANET ORBITING A BLACK HOLE, MOSTLY DUE TO THE LIKELIHOOD THAT THERE WOULD NOT BE A STAR AROUND TO PROVIDE LIGHT AND ENERGY. HOLLYWOOD WOULD BEG TO DIFFER, HOWEVER—THE MOVIE INTERSTELLAR SHOWED ASTRONAUTS (AFTER TRAVELING THROUGH A WORMHOLE) CHECKING OUT A DOZEN PLANETS NEAR A BLACK HOLE AS POSSIBLE FUTURE HOMES FOR HUMANS. AFTER WATCHING THE MOVIE, SCHNITTMAN DECIDED TO GIVE SOME THOUGHT TO THE IDEA OF HABITABLE PLANETS NEAR BLACK HOLES.
ASTRONOMERS BELIEVE SUPERMASSIVE BLACK HOLES PROBABLY LURK IN THE CENTERS OF MOST LARGE GALAXIES. THESE GARGANTUAN BLACK HOLES CAN GATHER SWIRLING DISKS OF MATERIAL AROUND THEM AS THEIR GRAVITY ATTRACTS STARS AND GASES. IN SOME CASES, THESE DISKS CAN EMIT VAST AMOUNTS OF LIGHT AND EVEN SHOOT HUGE JETS OF MATTER INTO SPACE. THE CENTER OF SUCH AN EVENTFUL GALAXY IS CALLED AN ACTIVE GALACTIC NUCLEUS, OR AGN.
"IT TELLS US THAT THERE ARE NEAR-LIGHT-SPEED MOTIONS OF THE GAS AROUND THE BLACK HOLE. IT TELLS US HOW THE BLACK HOLE IS ORIENTED IN SPACE. IT CONFIRMS EINSTEIN"S THEORIES OF GRAVITY VERY CLOSE TO THE BLACK HOLE BOUNDARY. ONCE YOU GET A TOOL LIKE THIS THAT GIVES YOU ACCESS TO THE INNER WORKINGS OF THE COSMOS, THEN YOU IMMEDIATELY JUST WANT TO DO MORE."
WITH EVERYTHING ELSE THAT HAS BEEN GOING ON LATELY DOWN HERE ON THIS PLANET, YOU MIGHT NOT HAVE NOTICED THAT THERE HAS BEEN A LOT OF NEWS LATELY ABOUT BLACK HOLES, THOSE EINSTEINIAN MONSTERS THAT CAN SWALLOW LIGHT AND EVERYTHING ELSE, BEHAVING BADLY. BLACK HOLES EATING STARS, OR WHOLE GANGS OF THEM. BLACK HOLES BURPING ENERGY FROM THE CENTERS OF GALAXIES. BLACK HOLES BANGING TOGETHER IN UNIVERSE-SHAKING EVENTS.
THIS SPRING, SCIENTISTS RELEASED THE FIRST-EVER IMAGE OF A BLACK HOLE — BUT WHAT THEY REALLY WANT IS TO CREATE A MOVIE OF A BLACK HOLE.
THOSE WHO LOGGED ON TO FORTNITE ON SUNDAY NIGHT SAW THE VIRTUAL ISLAND WHERE THE GAME TAKES PLACE HIT BY A METEOR SHOWER BEFORE THE ENTIRE MAP APPEARED TO BE SUCKED INTO A BLACK HOLE. SINCE THEN ANYONE LOGGING ON TO THE GAME HAS BEEN PRESENTED WITH A LIVE STREAM OF THE BLACK HOLE AND NO WAY OF PLAYING.
EARLIER THIS YEAR, THE ESO GRAVITY TEAM FOUND A STAR CLOSE TO THE BLACK HOLE TRAVELLING AT UP TO 10,000 KM PER SECOND, A FEW PERCENT OF THE SPEED OF LIGHT. THIS LET THEM WEIGH THE BLACK HOLE TO A PRECISION OF 1%, ARRIVING AT A NUMBER OF ABOUT 4 MILLION TIMES THE SUN』S MASS.
IN AN EFFORT TO BETTER UNDERSTAND THE NATURE OF THAT ACTIVITY, THE INTERNATIONAL TEAM OF RESEARCHERS THAT TOOK THE FIRST PHOTOGRAPH OF A BLACK HOLE IS TURNING ITS TELESCOPES TO THE CENTER OF OUR GALAXY. THE TEAM PLANS TO START RELEASING VIDEO FOOTAGE OF THE MILKY WAY'S BLACK HOLE IN THE NEXT FIVE YEARS.
"THIS YEAR HAS BEEN UNDENIABLY THE BLACK HOLE YEAR, FROM THE DATA COLLECTED BY NOBEL PRIZE-WINNING COLLABORATION LIGO, TO THE FIRST-EVER PICTURE OF A BLACK HOLE, TO NASA PUBLISHING A COLLISION BETWEEN A BLACK HOLE AND A NEUTRON STAR NOT TWO WEEKS AGO, IT SEEMS LIKE WE CAN"T GO FOR A MONTH WITHOUT ONE OR MORE BREAKTHROUGHS IN OUR UNDERSTANDING OF BLACK HOLES," HE SAID.
「I CALL IT THE BLACK HOLE,」 HE SAID. 「I FEEL SHAKY. I GET STRESSED ABOUT IT. THIS IS THE WORST SYSTEM IN MY LIFETIME. THEY ASSESS YOU AS A NUMBER NOT A PERSON. TALKING IS THE WAY FORWARD, NOT A BLOODY COMPUTER. I FEEL LIKE THE COMPUTER IS CONTROLLING ME INSTEAD OF A PERSON. IT』S TERRIFYING.」
FORTNITE KONAMI CODE: HOW TO PLAY THE FORTNITE BLACK HOLE MINI GAME

 

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