The only thing I'm thinking about the toothbrushes. To be honest it really is, isn't it? What do you think about the toothbrushes? It's much easier getting the Prime Minister to do this. Oh it's like being on Blue Peter, where's a dog? My cone's a bit too small, ah I'm gonna have re-cone. What do you think of my nosecone?īy the way we have not brought these in ourselves, I don't go around carrying little pictures of me self. And it's just not the kids, all the big BBC shows are getting in on the act.īottles at the ready. Well, fret not the mystery is solved, it could just be your kids turning food into fuel for the BBC's terrific scientific Bottle Rocket Challenge. Yeah, or even worse than that there's no vinegar for your fish and chips. Yep, well you may have found that you're missing a key ingredient, baking soda. Now if you've got children in the house and you've tried to bake a cake recently.
#Bottle rocket full#
For full instructions on this, and other Terrific Scientific investigations, go to bbc.co.uk/terrificscientific. Ten out of ten for trying, but I think that leaves a lot to be desired.īut, most of all enjoy. Make it go higher, further and faster by stream lining it. Make sure it stands upright on the launch pad, because if it falls over, your rocket will end up skimming across the ground. Fine tune your fuel by getting the right combination of vinegar and bicarbonate of soda to give your rocket the thrust it requires.ĭan, is that enough exposure space? No, I don't think so. This will make it more stable as it flies through the air.Ī bit. If you want to make your rocket more aero-dynamic pop a cone on top and maybe a couple of fins at the side. No, I quite like the old fashioned Russian kind of sixties look. However, I didn't think Greg's wafer cone would make much of a difference at that jaunty angle. This reduces resistance and helps the rocket cut through the air. Most of our rocket builders put cones on the tope of their rockets. But, could they have made their rockets go any highly. If you're using a bottle of this size, then think straws should avoid mishaps. Presently he's looking a little bit wonky, but I'm confident.Ĭoffee stirrers and bread stick may have seemed a good idea at the time,but they couldn't support the weight of the rocket when it was fully loaded. Biodegradable and edible at the same time. I think mine's going to- I got, I got visions of mine going off like this.ĭan and Greg's rocket legs weren't strong enoughīread sticks. Mine's going off at a slightly jaunty angle. I don't think particularly the asparagus spears are strong enough to hold it. My rocket's got legs very much like Bambi. The other thing rockets need is stability on the launch pad. For every action there is an equal and opposite reaction. When the bottle is the other way around, the downward force of the gas and liquid gushing out, causes the bottle to fly up. The pressure build up, until the cork pops out.īicarbonate of soda for me. When you put the two of them together in a bottle, with a cork in the top, the carbon-dioxide gas has nowhere to go. Vinegar is a weak acid, and when it comes into contact with bicarbonate of soda, a chemical reaction takes place, and carbon dioxide is released. But that's a bit dangerous for doing at home, so we'll be using vinegar and bicarbonate of soda. Now both of these are highly flammable, which is great, because that creates thrust as they burn, which forces the rocket up into space. The Soyuz's rockets that take astronauts like Tim Peak to the international space station are fuelled by liquid oxygen and kerosene. But why? The answer lies in the fuel and the stability of the rocket. Some rockets have launched like the space shuttle, whilst others have been less successful.
Well that's easy enough to do, cause you just bite the end off.
That's looking like a proper space orientated vehicle. As part of Terrific scientific, stars across the BBC have been taking part in a bottle rocket challenge.īread sticks for legs, so it's a bit wonky.
0 kommentar(er)
