### What sort and how big of a motor would be required to lift a 20kg speaker vertically into a roof space ?

I'm trying to make a platform to drop out from the roof at the press of a button to drop my home theater speakers out from the roof .

Question by cazz04   |  last reply

### HOW 2 DRILL STRAIGHT HOLE USING VERTICAL DRILLING M/C IN METAL ??

Question by malatesh   |  last reply

### I wish to make vertical wind turbine for 6kW generator, any suggestions about wings for it ?

We are trying to make wind turbine, to pace it on the roof, could be few of them, but reasonably big, if you know what i mean. Thanks

Question by azdanovica   |  last reply

### Has anyone ever mated flexible solar panels to vertical window blinds?

If you think about the amount of square footage that your average window or sliding glass door has, that's a LOT of potential space for solar panels! Are there any manufacturers that do this or has anyone here posted something about this?

Question by javajunkie1976   |  last reply

### What would be a good material for creating a custom vertically oriented wind turbine blades?

For a school project my group an I are building a vertically oriented wind turbine  similar in orientation to the one in the link(http://www.youtube.com/watch?v=rLa_NY5U1nk) We would like to build a few different designs to test which will give us the best efficiency as we will do using it to generate maximum output voltage. I'm wondering, what would be a good way to create these different custom pieces, especially the curved airfoil shapes we may wish to utilize in the design? Thanks!

Question by ddrocketman   |  last reply

### How would I choose the most efficient electric motor to use as a generator for a small wind turbine?

I have a school project to build a small wind turbine (approx. 8" propeller diameter) to produce the maximum out DC voltage possible.  We are still deciding between a horizontal & vertical orientation (leaning towards vertical) but we need some help on understanding what we should look for in the motor/gear setup in order to produce the maximum possible voltage at relatively low wind speeds.  What should I look for and where would be a good place to buy/scavenge these parts? Thanks!

Question by ddrocketman   |  last reply

### Would bed pillows make good insulation for a roof?

I'm planning an earthbag house, and with its vertical walls, I need a roof. I'm going as cheap as possible, and I wondered if this would serve as a solution? I can get pillows from Walmart for about \$5 a piece.

Question by jeniferchurch   |  last reply

### Deriving the maximum range and angle of a projectile

In a thread in the Green group, AnarchistAsian and I were discussing his coil guns. I posed the question of what range he could get, and he asked me to go through the physics derivation. Here it is, simplified to require just algebra and trig.The kinetic energy of the projectile E = ½mv2, gives v = sqrt(2E/m) as the speed at launch. Let θ be the angle at which you launch (θ=0° is horizontal, θ=90° is straight up). Then you can decompose the speed into two components: vh = v cos(θ) is the horizontal speed,vv = v sin(θ) is the vertical speed.Gravity only pulls vertically, so the projectile's vertical speed will be slowed down until it reaches its maximum altitude, then it will fall back until it hits the ground. The horizontal speed will remain constant until it hits the ground and stops. To figure out the range, you need to know the time t that the projectile flies before it hits the ground; then the range is just R = vhtEnergy conservation guarantees that it's downward speed at the end is equal to its original upward speed, just with a change of sign. That also means that the total flight time of the projectile will be half going up and half going down. Once you determine how long it takes to reach the top of its flight, you're done; just double that answer :-)In the vertical direction, the maximum heightH = vvt - ½gt2(you need calculus to derive this result). From energy conservation, the initial kinetic energy in the vertical direction, Ev = ½mvv2 must equal the potential energy at the top of the flight, Pv = mgH:mgH = ½mvv2H = ½vv2/gSubstitute this on the left hand side of the trajectory expression,½vv2/g = vvt - ½gt2vv2 = 2gvvt - g2t2vv2 - 2gvvt + g2t2 = 0(vv - gt)2 = 0vv = gtSo, t = vv/g = v sin(θ)/g is the time to reach maximum height. Double that as discussed above, and you get the range R = 2 sin(θ) cos(θ) v/g.Work out the angle that gets you maximum range by just plugging in different angle values and finding the one that is biggest.

Topic by kelseymh   |  last reply

### That didn't just happen, did my oscilloscope die!?!? How??? Repairable????

I went to my workbench today to discover that my BK Precision 30MHz analog scope has stopped working. Symptoms: ❶  Still shows a trace ❷  The trace does draw across the screen*  ❸  The horizontal time base seems to work ❹  10x horizontal magnification seems to work ❻  XY mode only draws in the X direction ❼  Waveforms do not show up, for either chA or chB ❽  Triggering seems to work (it causes the trace to draw more/less frequently. No vertical deflection)  ❾   Vertical controls for both channels have stopped working ❿   Dual trace shows only one trace ⓫   I have not been able to do anything to make the trace move up and down, vertical deflection is definitely shot. ⓬   * When changing the timebase, I noticed that the length of the trace horizontally gets shorter, and when a signal is present, or the vertical position for the appropriate channel is twiddled, it becomes the right length, within certain ranges. ⓭    When I was reaching for a powerstrip to turn off power to the lab the previous night, I heard a loud buzz, similar to that of the degaussing on a old computer monitor, but louder. no sparks or anything were visible as I recall. scared the crap outta-me, and I could not figure out what had happened. First thought was that maybe somewhere there was a live mains exposed somewhere that had shorted to ground or neutral. That was quickly dismissed since nothing was exposed like that, and also it would have popped the circuit breaker, and instead would have sounded like a firecracker. This sounded more like a small transformer failing. Also the same day, I have been messing with a tesla coil circuit (my beefed up slayer exciter) and the probes were sitting here by not connected picking up interference. They were in 10X mode, I do not remember the volts per division, however. I do recall a trace being shown on the display the previous day. With these symptoms, I think the issue has to do with the vertical control on the CRT, and perhaps another, separate issue with the horizontal time base control, or possibly triggering. I think I might do a teardown on it to see if there is anything obvious that has failed, such as a charred coil. Then I will need to figure out what had caused the issue. It is obviously something gone horribly, horribly wrong with vertical deflection or something of the like. I will have a look at the schematic and see what I can learn about the operation of the scope. I am glad I do have the user manual and schematics, so it should be straightforward, it is a nearly 100% BJT design. The scope was used and old, and lacked a lot of features, such as cursors and frequincy counters. Perhaps it is time for a digital upgrade anyway... http://www.amazon.com/gp/product/B00N222I6C/ref=s9_simh_gw_p504_d15_i1?pf_rd_m=ATVPDKIKX0DER&pf;_rd_s=desktop-1&pf;_rd_r=1VEC8M45MB2T9REXCR7N&pf;_rd_t=36701&pf;_rd_p=2079475242&pf;_rd_i=desktop

Question by -max-   |  last reply

### Longboard Wall Mount?

Right, I need some help... My bedroom is really small so I want a way of having my longboard mounted on the wall to save on some floor space, the only issue is that I need a way of having it hanging vertically on the wall but i would like it so I can see the paint job on the bottom of it and so the wheels don't marl my wall. Any ideas or suggestions? thanks

Topic by TJParmenter   |  last reply

### Magnetic Rotor

http://youtu.be/zqG-TL0WnjE How does this device work? Has it ever been on instructables or anything like it? How would I go about mounting the magnets on the rotor? What sort of spring would I need for the magnet mounted to the vertical shaft that slides up and down? In short I want to know every little detail about building it before I begin so I don't go buying a lot of unecessary stuff and waste money.

Topic by merlin280   |  last reply

### Single Piston Air engine

Hi all, need help/ advice in designing a single piston air engine, It is part of a mechanical engineering course I am currently studying, the only parameters i was given are - Single cylinder with vertically displaced piston with rotation of the input shaft on a horizontal axis - free standing with an operating envelope of 300mm x 300mm x 300mm - accommodate a nominal piston diameter of 20mm - engine capacity of 6.0cc / 6000mm (cubed) Any help would be greatly appreciated Thanks in advance

Topic by DavidO242   |  last reply

### ceder cladding to timber frame extension, how to fix without it been seen ?

I would appreciate any help we are doing a wrap around ceder clad extension onto a timber frame. The architects have spec'ed 2x1 cedar vertically and then 2x2 cedar alternate throughout. so you get the pattern 2x1 2x2 2x1 2x2. also for shrinkage and expansion what would you guys advise gap between each piece. all help much appreciated.

Question by JamesS2   |  last reply

### Curious striations on avocado sapling trunk...?

Greetings I started growing an avocado tree from a pit...it's at least 8 months old now.  My roommate said it was important to nip off some of the top shoots so that it would get stronger lower leaves.  After it got about 20 inches tall, we nipped off the top, and now a few weeks later the top half of the trunk is showing signs of what I can only assume is infection. The bottom of the stalk/trunk is quite strong and stiff - as are the 6 or so leaves coming from it.  Above that, where the newer leaves are, the stalk is mottled with 2-5mm long dark spots running vertically, and all the leaves in the area with the spots are paper thin, slightly translucent, and very weak.  On top of them they have a waxy shiny sheen, where the healthy leaves do not.  The healthy leaves are quite erect sideways, opaque, and vibrant dark green -  while the weaker leaves droop almost vertical, are translucent, and lighter in colour. Is it an infection?  Is there anything I need to worry about?  Is there anything I can actually do? Pictures:  1) Good bottom 1/3 section 2) mottled middle 1/3 section 3) mottled top 1/3 section

Question by frollard   |  last reply

### Best way to convert motor power to wheel power? Answered

I have a dolly cart and motor, and I want to motor to move the dolly cart as slowly as possible (It's already four RPM, but just take that into account in the method you recommend). I need one of the inner/vertical wheels to be spun by the motor. Both the cart and the motor are pictured below. I am using this for time-lapses, so it should be as consistent as possible. What is the best way to connect the two parts so the motor spins one of the wheels?

Question by sblaptopman   |  last reply

### How does a spindle sander oscillate? Answered

I'm wanting to cobble together a spindle sander using the guts of a hand drill. Mounting it is pretty trivial, but it would be very cool if I could make it oscillate vertically as well. Unfortunately, I don't have a spindle sander to take apart so I can see how it operates. Can anyone tell me what mechanism moves the spindle up and down? Does it use the same motor that rotates the spindle, or is there a secondary actuator involved?

Question by yoyology   |  last reply

### Ever seen a rotary tool that used a large flywheel?

Has anyone ever seen or built any kind of rotary tool that was driven by the inertia of a large, heavy flywheel? I have seen kick wheels for pottery, but i am curious about a vertical flywheel. Lathe, Grinder, pump.... Seems like you could attach a treadle to a pedal assebly of an old bicycle to drive the flywheel....if the pedal assembly was the free wheeling kind, and there was something pulling the treadle back up, it would only power the flywheel when the treadle was pushed down.

Question by ClandestineIntestine   |  last reply

### Wall mount a non-VESA monitor?

I have an ASUS ML248H 24" monitor that I want to mount to higher to remove the footprint from my desk and to have a better viewing angle since I usually lean back so I have to look "down," compared to my body position, to look at it at the level of the desk. The problem is that it doesn't have any place to attach an off the shelf wall mount. The only place to attach anything to it is where the base/stand is connected, and it's a funny thing that would be really difficult to replicate (see picture) I've looked through many of the ibles in the subject and nothing seems quite right so any suggestions would be great. The only thing I can think of so far is to use the vertical part of the original stand which would add a couple inches to the depth and act like a lever, multiplying the weight on any thing holding up the monitor, but adds more options for attaching stuff in the form of one vertically oriented bolt hole at the opposite end of the one that attaches the bracket to the monitor, as well as four smaller holes at roughly 30  degrees to horizontal (see pic #2) I was thinking of something like a pipe coming up off the desk or out of the wall but can't figure out how to connect the two pieces so that I can still have swivel and tilt adjustment.

Question by siamonsez   |  last reply

I have a pvc bar made from 1 1/2" pvc schedule 40. the longest vertical pieces are 18" or less...I have a fishtank on it a 1/4 full and having 2nd thoughts.. Any guesses,estimates,educated insight on whether this will hold 0hh 450-475lbs ie 50gallon tank minimal gravel and deco plus fish lights etc...I'm still elaning towards I think so but i have a lot of electronics in the same room right now i dont need soaked.... And obviously I'm not holding anyone accountable for their opinion...

### Briggs & Stratton Lawnmower/Go Cart Engine to Power a Boat

I've heard of people mounting small (5 hp or so) Briggs engines in boats to power them. I have a couple of warn out 2-stroke outboards, but they are smelly, smoky, and unreliable. Does anyone know the best way to mount a Briggs (or Tecumseh, Robin, etc) as an inboard? I know there'd have to be shafts and seals, but I'm kind of looking for ideas before I start cutting on the old flatbottom. I have a couple of vertical shaft motors, and one good horizontal.

Topic by skunkbait   |  last reply

### A mechanism that moves in the opposite direction of the applied force?

I am building a camera rig, and I would like to be able to accomplish very fluid movements with it. I have seen all kinds of existing camera rigs, but they all seem relatively static in one way or another. Simple bi-directional movement is alright, but something capable of vertical, horizontal and rotational movement would be preferable. If you push downwards, the camera moves upwards - that kind of thing. Even a material that is semi-flexible would work, as a rod to attach the camera to that would provide some sort of resistance, and a position to snap back to. I'm not looking for the whole design, just a starting point if anyone has any ideas about something that already exists that sounds like what I'm saying.

Question by epizeuxis   |  last reply

### Redirecting a mechanical force? Answered

Hi, im looking for some help with a physics/engineering type problem. Im looking for the most effective method of tranfering a mechanical force from one direction to another. For example if i had a 1" horizontal rod struck on its east face which then begins to travel westward on a fixed horizontal track, im looking for a method of transfering the energy (not sure if thats the right word) in the opposite direction. A few important factors are that the rod which is struck does need to travel around 4 inches on the fixed rail, and any vertical movement needs to be kept to a minimum. Below is one of my early ideas, serves little pupose as the mechinism is too large but gives you the jist of what im talking about.

Question by Squibo   |  last reply

### Wooden Air Cooled Water Chiller?

Does anyone have or know where to find plans for larger sized air cooled water chillers, such as those that used to be next to ice plants.  The vertical towers had water dropping through wooden, slanted slats which created chaotic air flow through the water, removing heat and chilling the return water.  Essentially speaking, I want to build a tower that can be used to chill large aquaria within outbuildings where fingerling trout are being raised. In doing web searches all I am finding are the heavy duty industrial chillers that are high energy users, expensive, and would not work with solar driven small water pumps. Thank you for any help, discussion or steer to websites. Bill

Question by BillClewis2   |  last reply

### Re-design messenger bag strap so that it doesn't slide or bunch at the loop

Hi all, I have a Clive messenger bag that is perfect for my carrying and commuting needs, except for the strap. The material of the strap is pretty flimsy, not the tough woven type as found on timbuk2 or Chrome messenger bags. If the bag is too heavy (with books, etc) the strap slides so that it's too long. The strap is sewn into the bag on one side, and on the other side, the strap goes through a small (maybe 5 mm diameter) metal rectangular loop. The strap always bunches and the loop hangs vertically so that the tab connected to the bag and the bag strap are all bunched. Does anyone have any ideas on how to re-sew or replace the strap and/or loop so that the strap doesn't bunch or slide? Thanks

### My chemistry textbook was right all along!

As reported in Physics World today, a team of Swiss and Dutch physicists have developed a novel tip for an atomic force microscope (AFM) using a single carbon monoxide molecule. The tip is stable enough to image individual atoms and bonds within molecules.The first image below is from the group's AFM of a single pentacene (C22H14) molecule on a copper (Cu(111)) substrate. The second picture shows the conventional chemical structure diagram (the vertices are carbon, and one hydrogen hangs off of each exterior corner), and the third is a "ball" model, with carbon atoms in black and hydrogen in white. As discussed in the article, the whole molecule is just 1.4 nm long, with a spacing of 0.14 nm between adjacent carbon atoms.The paper is out in today's Science, but it's pay-per-view.

Topic by kelseymh   |  last reply

### Soldering Copper Round Bar

I plan on making a backdrop (pictured) out of copper. I have a little bit of experience soldering copper pipe. I have an idea of how to build the backdrop but would appreciate some feedback/tips.Dimensions:- 5' W x 7' H x 3' DMaterials: - Diagonal members: 0.1875" round bar- Circular votive holders: 0.125" round bar- Rectangular border, kickers, and base: 1/4" x 1" rectangular barI'm thinking that I will solder the diagonal members at each intersection and where the ends meet the rectangular bar frame. The base will be a 3' rectangular bar on the left and on the right. There will be a kicker on each side, connected to the base and about halfway up the vertical members of the frame.Does this seem feasible? Will the structure be stable? How can I form the circular votive holders?

Question by sjung510   |  last reply

### how to prevent cracking when cutting a glass wine bottle in half?

I was attempting to cut a glass wine bottle in half to make some vases & other stuff.  I bought a bottle scoring kit (i think armour brand from Micheals Crafts)  The scoring worked OK, i don't think it scored well in a few places, but the tapping portion the kit said to do to seperate the halves didnt work at all.  I looked up online & it said about filling the bottle with boiling water then running an ice cube around the score line . . . this worked & split the bottle into 2 pieces as i wanted - only problem is it left a few cracks running vertically from the score line =( I can't use either piece now.  Is it just luck & practice makes perfect or is there a way to acheive this without cracking the bottle halves?  Any help is much apprecaited!

Question by Joolie567   |  last reply

### CDROM stepper motor problem with movement

I have been having intermittent problems with my cdrom stepper motor. I had a four pin motor soldered to a bare copper wire. I used the pins not the little ribbon cable and I left the ribbon cable attached because I figured, as soon as I snip it off I would regret it later. The other end connects to a breadboard that is in line with the stepper input to the EasyDriver motor controller. I have been using GRBL controller on my PC and when I tested it the first time in a vertical position it would just wobble around, not moving up nor down. I thought the stepper motor was bad so I got another one. The second was wired the same way, 4-pins, and it worked in the vertical no problem. Then later, while working on the rest of my project the second cdrom motor that was working did that same wiggle without moving up or down. I realized that the solder connections were very close together and that two pins were electrically connected. I modified the wire to basically a homemade male to male jumper wire. The extra pin made the room I needed to unsolder the two pins. Once again the motor worked up and down with no wobble. I have done nothing to modify the cdrom stepper any further and went to test my motor today after a couple weeks hiatus and once again, wobble with no up nor down motion. At this point I am stumped. I have reason to believe that my solder skills are lacking and that my homemade jumper has broken internally inside my shrink tubing where I cannot immediately see it but If anyone else has had this problem and knows how to rectify it please let me know. I hope there is enough info here laying out my problem and that someone can lead me in the right direction. If it also helps, I have checked my pin out and I do not feel it is backwards or crossed. I checked the resistance between the four pins and the end of my "jumper" and is approximately, 40, 20, 40, 100 ohms for A-, A+, B-, B+, respectively. I am really not sure what these number would mean but my buddy told me to check the continuity from end to end.

Topic by dankozi713   |  last reply

### Will my metal welder work ok?

I'm totally new to metal welding but am going to give it a try. My oven/range has a power outlet that reads on it: 125/250V, 50Amps. It has four prongs, three vertically oriented flat ones aligned as a triangle with the center one lower than the other two, and a fourth one top center that's round. My breaker box shows a 50Amp breaker for it. The welder says it's a MIG 170, 240V AC, 20Amps,single phase, 60Hz (Harbor Freight). I think the power I have is actually 220V but I'm not sure. If I do only have 220V will the welder only draw as much voltage as is asked by it - that is, if I only crank it up, say 3/4 of the way, will it draw less than its rated 240V? Or is that 240V just a maximum rating and it should run ok with 220V? It would seem odd that they would sell a welder that won't work for the power their customers would have by default without modifications. Also, where can I get a double socket for that outlet with one having an extension so I don't have to pull out my oven every time I need to weld something? Thank you. Bretina

Question by Bretina   |  last reply

### Low pressure pneumatic grid (1 to 4 psi) to use small wind, small hydro and small solar power?

I have used low pressure air and a simple "airlift pump"  to cycle water around a "pallet  Garden" since August.  This meant that very little water was being used but the plants were growing really well.   the air comes from an aquarium bubble pump and it is about 1 psi.  The pallet garden is almost 20 ft from the little bubble pump.   Recently I decided to do something similar in my greenhouse, but it is 120 ft from the little pump and there is no electrical socket close.  So reluctantly I bought another 120 ft of 1/4 inch tubing to send the air to the greenhouse.  I didn't expect it to work at that distance.  But it is working great. Why not use air instead of electricity to move the energy from "toy" windmills in gardens? Or from low head small water power?  I bet anyone could make a compressor to make 1 PSI.  It is orders of magnitude easier than making a direct water pump or converting the energy to electrical and then back again in a pump.  An airlift pump is just a vertical tube in the water.    How simple is that!   and it is darn cheap too.  You can use this for pumping water (Highest I ever got was 18 ft with 1 psi) or just bubbling air into a fishpond or to actually move the water in small water features.   Or of course in the pallet garden or in aquaponics.  And even thought this energy is useful at that scale it can never ever be made worthwhile to share it electrically.  But maybe your grid could extend to your neighbours garden too?  You could have an interconnector if you or they have a bit of excess pneumatic power!

Topic by gaiatechnician   |  last reply

### How would I build a Packing Peanuts Dispenser (ceiling mounted) for my home office (7' Ceiling)? Answered

I have looked all over the internet for a few days trying to find some DIY plans for building this and I haven't come across even one building plan for it. I know this is something a large number of people would love to find. I have a home business and I pack a ton of things at home for shipping. Commercial Packing Peanut (Loose Fill) Dispensers (Ceiling Mounted) are entirely too expensive for our small budget and I want to build my own. I have 7' ceilings and my packing station (table) is approx.  28.5" high. I would like the bottom of the dispenser opening (valve) to be approx. 20"-24" above the table so that I have some room to put boxes underneath it.  I would like the holding area (bag) to be able to hold between 10-15 cubic feet of packing peanuts so I don't mind if it takes up a lot of ceiling space. It wouldn't have to hang very far down from the ceiling as I can reach up that high to unhook/release it to refill it when I need to. The closer I could mount the top to the ceiling the better. I could either mount the dispenser to the ceiling from each corner of the bag or centrally mounted with a chain coming off each corner and meeting in the middle. It wouldn't matter to me either way. Here's a link to what I'm looking to build. http://a763.g.akamai.net/7/763/1644/4/app.infopia.com/img/image/fp/VPID/7237005/img4/img.jpg Of course, it needs to be not as deep as I have limited vertical space to work with. Anyone with any ideas with be greatly appreciated!

Question by SgtGang   |  last reply

### TV antennas and what is possible indoors

Topic by Downunder35m

### Tesla coil antenna?

Topic by Downunder35m

### Anti Gravity

SCIENTISTS in Finland are about to reveal details of the world's first anti-gravity device. Measuring about 12in across, the device is said to reduce significantly the weight of anything suspended over it.The claim - which has been rigorously examined by scientists, and is due to appear in a physics journal next month - could spark a technological revolution. By combating gravity, the most ubiquitous force in the universe, everything from transport to power generation could be transformed.The Sunday Telegraph has learned that Nasa, the American space agency, is taking the claims seriously, and is funding research into how the anti-gravity effect could be turned into a means of flight.The researchers at the Tampere University of Technology in Finland, who discovered the effect, say it could form the heart of a new power source, in which it is used to drive fluids past electricity-generating turbines.Other uses seem limited only by the imagination:Lifts in buildings could be replaced by devices built into the ground. People wanting to go up would simply activate the anti-gravity device - making themselves weightless - and with a gentle push ascend to the floor they want.Space-travel would become routine, as all the expense and danger of rocket technology is geared towards combatting the Earth's gravitation pull.By using the devices to raise fluids against gravity, and then conventional gravity to pull them back to earth against electricity-generating turbines, the devices could also revolutionise power generation.According to Dr Eugene Podkletnov, who led the research, the discovery was accidental. It emerged during routine work on so-called "superconductivity", the ability of some materials to lose their electrical resistance at very low temperatures. The team was carrying out tests on a rapidly spinning disc of superconducting ceramic suspended in the magnetic field of three electric coils, all enclosed in a low-temperature vessel called a cryostat."One of my friends came in and he was smoking his pipe," Dr Podkletnov said. "He put some smoke over the cryostat and we saw that the smoke was going to the ceiling all the time. It was amazing - we couldn't explain it."Tests showed a small drop in the weight of objects placed over the device, as if it were shielding the object from the effects of gravity - an effect deemed impossible by most scientists."We thought it might be a mistake," Dr Podkletnov said, "but we have taken every precaution". Yet the bizarre effects persisted. The team found that even the air pressure vertically above the device dropped slightly, with the effect detectable directly above the device on every floor of the laboratory.In recent years, many so-called "anti-gravity" devices have been put forward by both amateur and professional scientists, and all have been scorned by the establishment. What makes this latest claim different is that it has survived intense scrutiny by sceptical, independent experts, and has been accepted for publication by the Journal of Physics-D: Applied Physics, published by Britain's Institute of Physics.Even so, most scientists will not feel comfortable with the idea of anti-gravity until other teams repeat the experiments. Some scientists suspect the anti-gravity effect is a long-sought side-effect of Einstein's general theory of relativity, by which spinning objects can distort gravity. Until now it was thought the effect would be far too small to measure in the laboratory.However, Dr Ning Li, a senior research scientist at the University of Alabama, said that the atoms inside superconductors may magnify the effect enormously. Her research is funded by Nasa's Marshall Space Flight Centre at Huntsville, Alabama, and Whitt Brantley, the chief of Advanced Concepts Office there, said: "We're taking a look at it, because if we don't, we'll never know."The Finnish team is already expanding its programme, to see if it can amplify the anti-gravity effect. In its latest experiments, the team has measured a two per cent drop in the weight of objects suspended over the device - and double that if one device is suspended over another. If the team can increase the effect substantially, the commercial implications are enormous. Okay. lets throw down our ideas and see if we can figure something out... or not

Topic by RelyNupon   |  last reply