Remember that time Stephen Colbertbrought physicist Brian Greeneon The Late Show to demonstrate the construct of gravitational waves with green optical maser ? Yeah , that was pretty awing . Now there ’s a ready to hand DIY demo for those of us without accession to that kind of applied science , courtesy of science presenterSteve Mould .
For those who have n’t been espouse the biggest science story of the class , gravitational wave are calorie-free - speed riffle in the framework of spacetime because of such epically violent events as exploding stars and black muddle mergers . They ’re incredibly tiny and difficult to detect , but the Laser Interferometer Gravitational Wave Observatory ( LIGO ) did just that , announcingthe first direct detectionin February . They announceda second detectionin June .
But Mould palpate something was miss in the deluge of explainers , graphics , and animation spawned by the find . “ In all the graphics that I ’ve project , there ’s a kind of gulf between the objects and the wave that they make , ” he explain in the television . “ There ’s no way to see how one causes the other , and I recall we can mend that withan factual forcible demonstration of gravitational wave . ”
First , build your ownspacetime falsify demo with stretch spandex lycra , marble , and weights . Then ride a twain of footling wheels onto a wooden plank to simulate a span of binary black holes , and use a Mandrillus leucophaeus to set them rotate at the requisite 18 times per second . Voila ! riffle in the textile of your two - dimensional spacetime .
[ The Kids Should See This ]
AstronomyGeneral relativityLIGOPhysicsScience
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