{
    "video": {
        "cuepoints": "", 
        "description": "<p>Watch technicians meticulously inspect bungee ropes before thrill seekers use them. These elastic ropes are the only things between bungee jumpers and certain death, so the ropes are tested daily.</p>", 
        "is_us_only": "false", 
        "title": "I Didn't Know That: Bungee Jump Testing", 
        "url": "http://video.nationalgeographic.com/video/science/weird-science-sci/idkt-bungee-jump-testing/", 
        "country_code_deny_list": [], 
        "allowUserEmbed": "True", 
        "related": {
            "link": [
                {
                    "url": "http://science.nationalgeographic.com/science/", 
                    "name": "More About Science"
                }
            ]
        }, 
        "credit": "National Geographic", 
        "smil": "http://video.nationalgeographic.com/video/player/data/xml/idkt-bungee-jump-testing.smil", 
        "country_code_allow_list": [], 
        "HTML5src": "/video/player/media-mp4/idkt-bungee-jump-testing/mp4/variant-playlist.m3u8", 
        "still": "http://video.nationalgeographic.com/exposure/core_media/ngphoto/image/64471_0_616x346.jpg", 
        "transcript": "<p>RICHARD AMBROSE: You know you can do some amazing things with rubber Jonny.</p><p>JONNY PHILLIPS:\u00a0 I know.\u00a0 Look at this ball I've made just using rubber bands, isn't it good.</p><p>RICHARD AMBROSE: Mate I was thinking of something a lot more exciting than that.</p><p>JONNY PHILLIPS: Like what?</p><p>RICHARD AMBROSE: Like this...</p><p>SOUND ON TAPE: Aghhhhhhh!</p><p>NARRATOR: Bungee jumping....and this is how they test the rubber ropes</p><p>NARRATOR: These elasticated bungee ropes are the only thing between you and certain death, so they're tested daily.</p><p>NARRATOR: Bungee jumping was inspired by the people of Vanuatu in the South Sea Islands, who, in a centuries old ritual, use vines to jump with death defying precision from wooden platforms.</p><p>NARRATOR: If you jump here though, you'll be pleased to know that these ropes are military shock cord.\u00a0 The same cord is used in missile launch tests.</p><p>NARRATOR: Inside, the cord is made from 380 strands of Malaysian rubber, with a cotton outer core and a polyester cover.</p><p>NARRATOR: The crew will check each rope manually every single day and the ropes are de-commissioned after around a 1000 bounces.</p><p>NARRATOR: Once the cord is all hooked up, it's time for a test bounce.</p><p>NARRATOR: The test uses ordinary gym weights tied in a bag - 135 kilogram's of them - exceeding the heaviest jumper's weight for extra safety.</p><p>NARRATOR: \u00a0They go up to the jumping height of 55 meters.</p><p>NARRATOR: The rope can stretch up to 3.3 times its length, so even at full stretch you would bounce seven meters above the ground.\u00a0 A bungee jumper wouldn't stretch it to the max though so the clearance would be even bigger. The weights shows that everything is in order.</p><p>NARRATOR: And now for the final test.....with a human subject.</p><p>TESTER: Here we go.</p><p>NARRATOR: Some jumpers won't jump until they've seen the pros do it first.</p><p>NARRATOR: \u00a0Bungy expert George has done over 200 jumps, but even he still gets the willies.</p><p>TESTER:\u00a0 3,2,1, Bungy!</p><p>Yeah!!!</p><p>NARRATOR: As the rope kicks in, George is travelling at over 70 kilometres per hour.</p><p>TESTER:\u00a0 Man that's good.\u00a0 That's a pass.</p>", 
        "id": "idkt-bungee-jump-testing"
    }
}