| Author |
Message |
   
Anonymous
| | Posted on Sunday, February 16, 2003 - 1:11 am: |      |
post some new projects !!!!!!!!!!! |
   
Simon Quellen Field (Sfield)
| | Posted on Sunday, February 16, 2003 - 2:10 am: |      |
There are new ones all the time. The vacuum project is only a few days old, and the railgun project is nearly done -- all the photos and instructions are done, now comes the hard part, explaining it to my youngest readers and their parents. However, you can help by suggesting some you'd like to see. |
   
Anonymous
| | Posted on Sunday, February 16, 2003 - 1:23 pm: |      |
Have you ever seen a "vortex gun" like the toy Wham-o produced. I had a lot of fun making ones that shot smoke rings across the room. |
   
Ryan Somebody
| | Posted on Tuesday, February 18, 2003 - 4:50 pm: |      |
I would like to see a brushless electric motor in addition to the others on your site. Just a thought. |
   
Anonymous
| | Posted on Saturday, March 22, 2003 - 12:18 am: |      |
ya make plans for a smoke ring gun!!!!!!!!!!!! |
   
Anonymous
| | Posted on Saturday, April 12, 2003 - 4:48 pm: |      |
Please pos more projects!!!! The ones you have now are really great but their should be more. |
   
Anonymous
| | Posted on Tuesday, May 6, 2003 - 10:51 pm: |      |
its not easy. he has to wright in stupid for all the beginners to be able to do the projects. i think simon is doing a good job on this sight. he answers all our questions. some people don't even visit their site. |
   
Anonymous
| | Posted on Thursday, December 9, 2004 - 9:01 am: |      |
Yeah, and he has to deal with dumbasses like you who can't spell. Simon, what's a Quellen Field? I'd like to see some crystal-growing projects, for aromatic and dye hydrocarbons if possible. -Aut (lysdexia) |
   
Simon Quellen Field (sfield)
New member Username: sfield
Post Number: 6 Registered: 12-2004
| | Posted on Thursday, December 9, 2004 - 11:09 am: |      |
Spelling criticism from someone named "Lysdexia"? ;-) Besides, the poster was correct -- there should be more projects. Suggestions like yours are helpful. The simplest aromatic hydrocarbon is benzene. But it is not that easy to crystalize. ;-) The next simplest is napthalene, which may be a little hard to find now that moth balls are no longer made from it (you may still be able to find napthalene moth balls -- just not where I shop, where paradichlorobenzene is used). There is a nice web site about growing napthalene crystals here. Another great one is here. Another site grows the crystals from vapor. The next aromatic is anthracene, and there are interesting interactions between anthracene crystals and light. Another fun aromatic to crystalize is buckminsterfullerine. |
   
Travis Unregistered guest
| | Posted on Thursday, January 6, 2005 - 6:23 pm: |      |
Hey here's an idea: Making copper carbonate using electrolysis. I've done it before on accident. You would strip the copper off a penny, using electrolysis, in a saline solution. The elements would them recombine to form copper carbonate. When burned, it makes a blue flame. This is a simplified explanation because I don't really get it myself, though I get the basis of it. |
   
lysdexia Unregistered guest
| | Posted on Friday, January 7, 2005 - 8:52 pm: |      |
Try copper acetylide... |
   
Simon Quellen Field (sfield)
New member Username: sfield
Post Number: 89 Registered: 12-2004
| | Posted on Saturday, January 8, 2005 - 12:20 am: |      |
It would seem to me that copper chloride is a more likely reaction product. |
   
lysdexia Unregistered guest
| | Posted on Sunday, January 9, 2005 - 2:18 am: |      |
There is usually no such thing as a blue flame. It's a cyan flame, but probably light bluish-cyan, or lazuline. |
   
Travis Unregistered guest
| | Posted on Monday, January 10, 2005 - 5:55 pm: |      |
I am very sure that copper carbonate would be made, as well with some copper chloride. Through research I have done myself, copper carbonate can be made using electrolysis. |
   
Simon Quellen Field (sfield)
New member Username: sfield
Post Number: 106 Registered: 12-2004
| | Posted on Monday, January 10, 2005 - 8:15 pm: |      |
So what is the source of carbon in your setup? In distilled water with only sodium chloride in it, there should be precious little carbon or oxygen with which to make the carbonate. |
   
Travis Unregistered guest
| | Posted on Monday, January 10, 2005 - 9:00 pm: |      |
I was not using distilled water; I was using tap water. The oxygen is readily avaible through electrolysis. Like I said before, I do not fully understand the process. Since I was using a gatorade lid for the vessel, some cross-over might have occured. According to: http://www.nutritiondata.com/facts-001-02s02z9.html, There is .3g of Ash in the dry gatorade mix. Assuming that the recipe is the same for the dry mix and the bottle, that would explain the carbon. Also, the ceramic vessel I stored it in (I used two seperate containers) was glazed and I imagine the glazed was maded from petrolium products. This could be another source for C. |
   
lysdexia Unregistered guest
| | Posted on Sunday, March 6, 2005 - 11:48 pm: |      |
separate, petroleum |
   
PUNNISHER Unregistered guest
| | Posted on Friday, May 13, 2005 - 2:56 am: |      |
DYSLEXIA Learning disability affecting reading ability. Persons with dyslexia may have difficulty remembering, recognizing, and or reversing written letters, numbers, and words, might read backwards, and have poor handwriting. a reading disability typified by problems in expressive or receptive, oral or written language. Problems may emerge in reading, spelling, writing, speaking, or listening. People with dyslexia often show talent in areas that require visual, spatial, and motor integration Dyslexia means dysfunction of the lexicon: As your spelling is fine,I think You should change your sig to (spellcheck) Dont make fun of other People TO HIDE YOUR OWN FLAWS.!/END_OF_LINE- |
   
Simon Quellen Field (sfield)
Senior Member Username: sfield
Post Number: 409 Registered: 12-2004
| | Posted on Friday, May 13, 2005 - 10:17 am: |      |
There, there, children. We teach tolerance by tolerating. Liz has a cute handle, and an acute wit, and all of us should learn to spell. I don't think she is standing on tip-toe to look down her nose at anyone -- she is correcting spelling. If you don't like that, be more careful with how you present yourself in public media that leave a lasting impression on the world. As for hiding, I will merely note that your mother probably didn't give you that name at birth. ;-) |
   
Lucy Lastic Unregistered guest
| | Posted on Friday, May 13, 2005 - 10:56 am: |      |
I typed your name into Google. Google asked me "Did you mean: punisher?" But maybe a punnisher is someone who criticizes puns, like the lady's handle. |
   
MadScientist (Madscientist)
Advanced Member Username: Madscientist
Post Number: 71 Registered: 4-2005
| | Posted on Sunday, September 18, 2005 - 3:30 pm: |      |
Now that's funny right there, I don't care who you are, that's funny. Nothing more fitting than to be tainted by your own poison.  |
   
mnado (Mnado)
Senior Member Username: Mnado
Post Number: 124 Registered: 12-2005
| | Posted on Friday, January 27, 2006 - 11:01 pm: |      |
simon when you transmit a certain hertz,should the receiver be at the same hertz? sample you used 1.000000 mhz transmitter then the receiver should be 1.000000 mhz too? cause i found this poor small receiver bit bigger than a penny, and i can't find the transmitter so i'm planning to buy a R/C car that has the same mhz... would that work? |
   
scott weeks (Radioman)
New member Username: Radioman
Post Number: 3 Registered: 4-2006
| | Posted on Friday, April 21, 2006 - 2:58 am: |      |
I would like to make a power amplifer for a fm transmitter. |
   
Alex Roberts (Whoo_mythbusters)
Senior Member Username: Whoo_mythbusters
Post Number: 166 Registered: 9-2005
| | Posted on Tuesday, September 19, 2006 - 4:08 pm: |      |
To mnado, yes you should receive on the same hertz, but if you just go out and buy a transmitter there is no guarantee that it will work. Radio waves can be modulated in different ways to send information, hence (FM) frequency modulation, and (AM) amplitude modulation. There are also so many other ways other than FM and AM. So you could buy a transmitter that sends the signal over a side band, but your receiver would not receive any information because it is not "looking" for information on a sideband. An example, my Air hogs Aero Ace is controlled on 27 megacycles (Mega hertz). Just as an experiment I tried to control the plane with two other transmitters that I had for remote controlled cars. Neither worked at all. Also, the signal could be coded in such a way that only the matching receiver could interpret the signal. |
   
Rohan (Digital)
Senior Member Username: Digital
Post Number: 134 Registered: 3-2008
| | Posted on Wednesday, September 3, 2008 - 11:34 am: |      |
Hey really we need some interesting simple new projects like the laser communicator. |
   
scott (Ichyc)
Senior Member Username: Ichyc
Post Number: 200 Registered: 6-2006
| | Posted on Friday, September 5, 2008 - 1:03 am: |      |
Stop asking and start inventing (= |