{
    "video": {
        "cuepoints": "", 
        "description": "<p>Richard Ambrose and Jonny Phillips build their own water rockets and compete on who can reach the highest launch.</p>", 
        "is_us_only": "false", 
        "title": "I Didn't Know That: Water Rockets", 
        "url": "http://video.nationalgeographic.com/video/science/weird-science-sci/idkt-water-rockets/", 
        "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-water-rockets.smil", 
        "country_code_allow_list": [], 
        "HTML5src": "/video/player/media-mp4/idkt-water-rockets/mp4/variant-playlist.m3u8", 
        "still": "http://video.nationalgeographic.com/exposure/core_media/ngphoto/image/59004_0_616x346.jpg", 
        "transcript": "<p>RICHARD AMBROSE (PTC): If you wanted to travel into space you need the backing of a government and a rich government at that.\u00a0 But it's all starting to change.\u00a0 The 21st century is heralding the arrival of the rocketeer privateer</p><p>VO: On the 21st of June 2004 <em>SpaceShipOne</em> went rocketing into the history books when it became the first privately funded manned vehicle to make it into space.\u00a0 It was carried to an altitude of nearly 14 kilometers by its launcher <em>White Knight</em> before it broke free and fired its own rocket engine.\u00a0 Although it only burned for 80 seconds the rocket produced enough thrust to send the tiny craft hurtling one hundred kilometers above the Earth, to come down the wings were tilted and <em>SpaceShipOne</em> flew effortlessly to Earth.</p><p>JONNY PHILLIPS (PTC): Unfortunately our pockets aren't quite as deep as Richard Branston's.</p><p>RICHARD AMBROSE (SYNC - TO JONNY): Branson -Branson, mate.</p><p>JONNY (SYNC - TO RICHARD): Oh right - I thought he was the guy the made the pickle.\u00a0 Anyway how much have we got?</p><p>RICHARD: 30 quid.\u00a0 30 quid.\u00a0 But with some creative thinking I think we can come up with something.</p><p>JONNY: Yeah - yeah - cool.</p><p>RICHARD: Yeah.</p><p>RICHARD AMBROSE (PTC): So Jonny and I have come up with a pressurized water rocket.\u00a0 You can make these at home.\u00a0 What you need is an air pump that supplies the pressure.\u00a0 \u00a0You need a bicycle valve, from an inner tube. A section of wine cork, screwed in there like that.\u00a0 That's the clever bit.\u00a0 A bit of water.\u00a0 A stand.\u00a0 And obviously the rocket which is my mini V2.</p><p>VO: Getting the ratio of water to air right is crucial.\u00a0 Richard reckons a two liter bottle, filled with a third of water, should launch it to a good height.\u00a0 When the cork can't withstand the air pressure any more, you have lift off.</p><p>RICHARD (SYNC): Four - five - Cor - yes.\u00a0 Way.\u00a0 That's 50 feet.\u00a0 It's a good one.\u00a0 Jonny - next one.</p><p>JONNY (SYNC):\u00a0 Not bad Rich, but I think I can do better.\u00a0 I've got a bigger pump and a bigger rocket.</p><p>VO:\u00a0 Richard's rocket took about 80 pounds per square inch before it went off.\u00a0 That's around three times the pressure of a car tire.</p><p>JONNY (SYNC):\u00a0 Come on.\u00a0 You could sell this as an exercise.\u00a0 It's absolutely knackering.</p><p>VO:\u00a0 With this bigger pump, Jonny is hoping for one hundred psi.\u00a0 but there's no quick way of getting it in there.</p><p>RICHARD: Oh my God.</p><p>JONNY:\u00a0 I didn't see how high it went because I was facing the other way.\u00a0 But it sounded pretty good.\u00a0 How was it?</p><p>RICHARD:\u00a0 It was excellent.\u00a0 It went rocketing off it that direction.\u00a0 You probably cleared 50 feet but it went a long -</p><p>JONNY:\u00a0 50 feet at an angle?</p><p>RICHARD:\u00a0 Yeah - that was excellent.\u00a0 But I've got something bigger than that mate.\u00a0 Stand clear.</p><p>RICHARD (SYNC):\u00a0 I've got a fat one and I've got a bad boy to fire it up.\u00a0 Now stand back.</p><p>VO:\u00a0 The compressor is providing one hundred and twenty times more pressure than Jonny's foot pump.</p><p>RICHARD:\u00a0 Whoa hoo hoo.</p><p>JONNY:\u00a0 Excellent.</p><p>RICHARD:\u00a0 That was superb.</p><p>JONNY:\u00a0 Spectacular.</p><p>RICHARD:\u00a0 We're not going into outer space with this one</p><p>JONNY:\u00a0 No but if we got a big enough bottle.</p><p>RICHARD:\u00a0 Yep.</p><p>JONNY:\u00a0 Strapped a couple of car seats to it.</p><p>RICHARD:\u00a0 Yeah, I like the way you're thinking.</p><p>JONNY:\u00a0 We might make the upper atmosphere.</p><p>RICHARD:\u00a0 Hey - come on, let's try.</p>", 
        "id": "idkt-water-rockets"
    }
}