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| Inventions | Started by: Theguy_u_wish_u_were on Mar 20, '09 21:36 |
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Alright, I have this project for school. It involves inventing something and presenting it to the class. (Public Speaking) Here is the problem, most of my imagination has already died and rotted off somewhere. The only thing I could think of is a laptop computer, powered by solar panels and a hand crank. The idea behind this laptop is that if the apocalypse happens, all of human history and invention is stored on this laptop for future reference for the rebuilding of society. If somebody is kind enough to give me a good idea, I can pay you $50,000. I will only accept one person's idea http://inventorspot.com/files/images/Keg%20Head.img_assist_custom.gif |
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| is this $50.00 real money or mafia money? | |
| Reply by: The_Trickster at Mar 20, '09 21:37 | |
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| Mafia money :) | |
| Reply by: Theguy_u_wish_u_were at Mar 20, '09 21:45 | |
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Make your own light bulb... Thomas Edison famously spent months trying to make a lightbulb work. He tested one material after another in an evacuated bell jar before he finally got a carbon filament to burn long enough to sell it with a straight face. When I had a free afternoon recently, I thought I'd see if I could do it too. Edison's first mistake was living before tungsten wire was available. Tungsten is way better than carbon as a filament material, and now you can find it in any metal-supply shop. It lasts longer, is less brittle, and glows with a cleaner, whiter light. His second mistake, repeated in classroom physics demonstrations to this day, was using a vacuum to get the air out of the bulb. Clearing out the air is important because at yellow to white heat (3,500F to 5,000F), pretty much all known materials, even tungsten filament wire, react with oxygen and burn up in a few seconds. Remove the oxygen, and the wire can't burn. But a vacuum is the hard way to solve that problem. You need an expensive vacuum pump, a thick glass bell jar to withstand the pressure of the surrounding atmosphere, and several nonleaking pipe joints. It's a whole lot easier to just displace the air with an inert gas that's at the same pressure as the surrounding air, which is how most modern bulbs work. Common household lightbulbs use a mixture of argon and nitrogen. Fancy krypton flashlights and xenon headlamps use those eponymous heavier noble gases to allow the filament to burn longer and hotter. I used helium because it's easily available and lighter than air, allowing me to fill my bulb, an upside-down glass ice bucket (wedding present, I believe), from the bottom. The helium floated up, displacing the air inside. With a steady stream flowing in, I didn't even need to seal the bucket very well—I just wrapped a sheet of tinfoil over the bottom to keep eddies of air from wafting in. For a filament, I used a thick tungsten wire I had lying around the shop and, for the power supply, a small stick welder I got at an auction. It supplied about 50 amps at 30 volts, giving me a 1,500-watt bulb. When I powered up the filament without the bucket in place, it produced a prodigious quantity of tungsten-oxide smoke and didn't last very long. But with the bucket on and a steady flow of helium, the filament glowed brightly and cleanly. It must have been truly thrilling for Edison when he finally got one of these things to work for the first time. I know I was thrilled, even though I slaved over mine for only about 30 minutes and it worked perfectly the first time—well, the first time I didn't forget to turn on the helium. I hope this helps |
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| Reply by: ViolentKilla at Mar 20, '09 21:47 | |
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| That is awesome. I'll give some cash for that. That light bulb thing would have been perfect for my demonstration speech. What I'm looking for is something imaginary. Any other ideas would be very welcome. | |
| Reply by: Theguy_u_wish_u_were at Mar 20, '09 22:02 | |
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Ok, how 'bout this: -A submarine screen door! -A pillow that zips onto the collar of your coat for plane trips! -Music stands with lights built into the top that point towards the music! Give me a while and I'll have more. -Alex |
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| Reply by: ALEXRAAAAAAAAR at Mar 21, '09 11:08 | |
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Well, I can think few ideas. not sure how good they are, or have they been invented, but A camera what can see through walls, a small camera what removes wood/brick/paper/paint and shows what is inside the building. |
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| Reply by: Raptor at Mar 21, '09 13:41 | |
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Stick to pizza, everyone loves pizza!!!! OoO or a rotary powered laptop....dont ask! |
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| Reply by: Cav at Mar 21, '09 22:23 | |
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A flying cup!! ~Lucky~ |
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| Reply by: LuckyLuciano at Mar 22, '09 09:24 | |
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| How about a device to stop thieves stealing your car. if they don't put in the right code the engine won't turn over. Not even hot wiring will work. | |
| Reply by: Bugsy54 at Mar 23, '09 05:27 | |
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Picture this, You are extremely over weight, you are sitting in your chair that you love so much and you are about to switch on the tv. Hud on a sec, where the fuck is the remote. FFS you need to get up off your lazy arse a walk 10 steps in front of you as the remote is lying on the floor. After you tire yourself out by taking those 10 deadly steps back and forward you sit back down and turn on the TV, an Advert pops on advertising the all new built in remote control chair, With all the functions you need to meet your daily Tv needs and without having to move your fat fucking arse. DONE DEAL. |
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| Reply by: The_Trickster at Mar 23, '09 06:29 | |
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| That's true, phat lard balls like me would pay for something like that!! | |
| Reply by: ALEXRAAAAAAAAR at Mar 24, '09 15:56 | |
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Invent the solar powered flash light. I guarantee you will make millions. |
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| Reply by: RourkeyRourke at Mar 24, '09 17:08 | |
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the method for impregnating lesbians: Strapons that spurt. |
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| Reply by: Adieu at Mar 24, '09 17:15 | |
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Thanks for the ideas, but I went with the apocalypse computer idea. I'm calling it A-POC Because when it ends survival begins |
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| Reply by: Theguy_u_wish_u_were at Mar 24, '09 17:56 | |
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