Garry Pollard Posted October 9, 2009 Share Posted October 9, 2009 Hi Just been on another forum and picked up on an article about the future of elec flying. They were on about nuclear batteries that will maybe need recharging every 10 yrs. Fly till you are ready for bed, sleep fly again,sleep fly again and no recharging Wish I knew the stockist, maybe in 10 yrs GarryEdited By Garry Pollard on 09/10/2009 21:08:22 Quote Link to comment Share on other sites More sharing options...
David Ashby - Moderator Posted October 9, 2009 Share Posted October 9, 2009 Hmm, did the thread start 1st April Garry? Quote Link to comment Share on other sites More sharing options...
Garry Pollard Posted October 9, 2009 Author Share Posted October 9, 2009 Strangly enough David NO It was a post that sent you to a web site which gave a very long article about them. Ceratainly not a wind up but I am too thick and old to be able to transfer the web address to this forum. Comes from living in Grantham, Ask Timbo and tell him thats 2 nil to me Garry Quote Link to comment Share on other sites More sharing options...
TonyS Posted October 9, 2009 Share Posted October 9, 2009 Maybe not 10 years but with all the resources going into battery technology who knows.....? I wish they'd hurry up but, having said that, with what I'm spending now I probably won't be able to afford to buy one Quote Link to comment Share on other sites More sharing options...
David Ashby - Moderator Posted October 9, 2009 Share Posted October 9, 2009 LOL ok Gary, I think I'll stop at Li-Po Imagine piling a model into the ground with a nuclear battery - you'd take out the whole flying club in one go Edited By David Ashby - RCME moderator on 09/10/2009 21:22:37 Quote Link to comment Share on other sites More sharing options...
Garry Pollard Posted October 9, 2009 Author Share Posted October 9, 2009 You all hink im daft lol just cos I live in Grantham ( 3 nil Timbo ) so I have copyied the link http://news.bbc.co.uk/2/hi/technology/8297934.stm Good thought about about taking the club out if you didnt like them. Puts a new slant on terrorisum though Dont know about not being able to afford them I cant afford the lipos now Tony Garry Quote Link to comment Share on other sites More sharing options...
Bruce Richards Posted October 9, 2009 Share Posted October 9, 2009 I was surprised what I read this. I didn't even know nuclear batteries existed but apparently they have been around for years. Quote Link to comment Share on other sites More sharing options...
David Ashby - Moderator Posted October 9, 2009 Share Posted October 9, 2009 oooh, well there you go then Quote Link to comment Share on other sites More sharing options...
Paul Course Posted October 9, 2009 Share Posted October 9, 2009 Will they make the models heavier with all that lead shielding around the batteries Paul Quote Link to comment Share on other sites More sharing options...
birdy Posted October 9, 2009 Share Posted October 9, 2009 What would happen if something went wrong? Birdy, from the depths of a huge mysterius crator. sounds interesting though! Quote Link to comment Share on other sites More sharing options...
Boots Posted October 9, 2009 Share Posted October 9, 2009 I Live in cyprus, where there are very high levels of sun.........so I want solar batteries please,,,It really would be SOLAR FILM !!!!! Quote Link to comment Share on other sites More sharing options...
Former Member Posted October 9, 2009 Share Posted October 9, 2009 [This posting has been removed] Quote Link to comment Share on other sites More sharing options...
Former Member Posted October 10, 2009 Share Posted October 10, 2009 [This posting has been removed] Quote Link to comment Share on other sites More sharing options...
Former Member Posted October 10, 2009 Share Posted October 10, 2009 [This posting has been removed] Quote Link to comment Share on other sites More sharing options...
BB Posted October 10, 2009 Share Posted October 10, 2009 Ah the 'holy grail' of Cold Fusion - If that ever takes place on a grand industrial & safe scale. This planet and others are gonna change fast !! BB Quote Link to comment Share on other sites More sharing options...
Former Member Posted October 10, 2009 Share Posted October 10, 2009 [This posting has been removed] Quote Link to comment Share on other sites More sharing options...
Phil Claridge Posted October 10, 2009 Share Posted October 10, 2009 it would cook your curry quicker phil Quote Link to comment Share on other sites More sharing options...
ken anderson. Posted October 10, 2009 Share Posted October 10, 2009 we have people over 80-90 year's old up in this neck of the wood's running full marathon's before and after breakfast using the new lipo's in their 'pacemaker's'....believe it or not........'sss ken anderson....ready for re-wiring....... Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted October 10, 2009 Share Posted October 10, 2009 I am reminded of a cartoon from Aeromodeller back in the early 50s. It showed two modellers with free flight constest models looking at a power station and one of them is saying to the other. "If only we could get all that power into something the size of a wallnut."Edited By Peter Miller on 10/10/2009 08:44:25 Quote Link to comment Share on other sites More sharing options...
TonyS Posted October 10, 2009 Share Posted October 10, 2009 Poly, On the basis of your Einsteinian calcs above I think you should knock the battery together, I'll sort out the airframe and we'll let Timbo worry about finding the right ESC / Motor combo. Timbo, I'm not daft...I've worked out that the power-train maybe a bit heavy so I've strengthened the airframe a little - it's around 2.5 tonnes but I haven't covered it yet! Quote Link to comment Share on other sites More sharing options...
Phil Brooks Posted October 10, 2009 Share Posted October 10, 2009 Peter's posting reminded me of a letter to aeromodeller sometime in the '50s, which went along the lines:- "A model with infinite power would achieve infinite speed. According to Einstein, it would then possess infinite mass, and have infinite gravitational pull. We've all seen what happens when a plane collides with earth, how much worse would it be if the Earth collided with a plane! Infinitely powered aircraft should be banned immediately." We're getting there folks! Quote Link to comment Share on other sites More sharing options...
John Cole Posted October 10, 2009 Share Posted October 10, 2009 Nuclear batteries (or cells) won't require lead shielding. In a last-ditch attempt to win the Nobel Prize for Being Boring, let me explain how they work. Atoms comprise a tiny nucleus, surrounded by a cloud of (one or more) electrons. The nucleus comprises a jumble of protons and neutrons (except hydrogen-1, just 1 proton). A nuclear cell by definition is powered by something happening in the nucleus. High-energy nuclear stuff includes Fission (splitting heavy atoms like Uranium, as in power stations and "atomic" bombs) and Fusion (joining together light atoms like Hydrogen, as in the sun and the H-bomb). Nuclear cells don't use either of these processes. "Radiation" (strictly Ionising Radiation) comprises 3 types associated with the nucleus: alpha rays, beta rays and gamma rays. A fourth type of ionising radiation (X-rays) comes from the electron cloud, not the nucleus. Gamma rays (and X-rays) are bits of pure electromagnetic energy (like light and radio waves). Gamma rays (and particularly high-energy ones) are hard to stop ("shield"); that's what you use lead (and lots of concrete) for. Alpha rays and Beta rays are actually high-speed particles: an alpha particle is just the fast-moving nucleus of a helium-4 atom, and a beta particle is just a fast-moving electron. Electron! Now we're getting there! A beta particle is emitted when (effectively) a neutron in the nucleus turns into a proton-electron pair, and the electron "escapes". OK, that's a bit of a simplification - but I think it will do. The electron escapes because a neutron is heavier than a proton + electron, and the mass-difference is turned into energy (E=MC-squared), some of which is used by the electron to fly off. The rest goes into re-arranging the remaining bits of the nucleus, often into a temporary unstable state. If and when this collapses into a lower-energy stable state, a gamma ray is emitted. And that's how nuclear cells work: they comprise a thin layer of a very-radioative isotope, but one chosen to have a beta particle of low energy (and preferably not one which emits a gamma ray). Low energy as it's the beta particles (electrons) themselves that we want, not their kinetic energy. And low-energy ones are easier to catch. In the University of Missouri paper Missouri press release the isotope used was Sulfur-35 - no gamma ray, max. beta energy 0.167 MeV. Beta particles of that energy are stopped by just 24 cm of air (or a sheet of tissue paper), so no lead shielding needed! The thin layer of S-35 (on a conductive substrate) is coated with (in this case liquid) semiconductor and then a conductive "harvesting" plate. The beta particles are trapped as thay are absorbed by the semiconductor or plate. OK, now stop calling them beta particles and just call them electrons! So the electrons jump out of the S-35 and are harvested by the conductive plate. They can't flow back to the substrate, as they would have to go the "wrong way" through the semiconductor. So the substrate becomes the positive plate of the cell, and the harvesting plate becomes the negative plate. And that's all there is to it. The technology of the demo cells isn't going to be much use to us though: S-35 has a half-life of just 57 days, so after a year there's not much left. It's not that easy to make, either. Practical cells will need to use something else. Quote Link to comment Share on other sites More sharing options...
Paul Course Posted October 10, 2009 Share Posted October 10, 2009 Will ready brek do? it makes kids glow in the dark Quote Link to comment Share on other sites More sharing options...
Ben Mullins Posted October 10, 2009 Share Posted October 10, 2009 Fusion? I thought that only happened in the Sun. And we couldn't replicate it on the earth. Or can we not replicate it in a controlled manner? And what will that other element be that they use? Without making my life a half life! Can't wait to do Physics at college! Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted October 10, 2009 Share Posted October 10, 2009 Physics will solve all our problems. Don't worry, when/if the ever get the large Hadron collider running it will create a black hole and suck the world into it. All our problems will be very small ones then Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.