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- Dramatic display of light inside of the hand blown glass sphere
- Electrical bolts at your fingertips!
- Interactive light show
- Place you finger on the glass surface and watch as colored bolts of glowing light follow your every move
- AC adapter included
- With super large 8" glass sphere it can be viewed from any angle
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CHOKING HAZARD -- Small parts. Not for children under 3 yrs.
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|Sold By||Amazon.com||Unique Gadgets & Toys||Unique Gadgets & Toys||Unique Gadgets & Toys|
|Item Package Weight||2.8 pounds||2.35 pounds||9.8 pounds||1.7 pounds|
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Top Customer Reviews
Later, the room was lit up with the usual indoor lights, though there was no daylight coming through the window. In these conditions, the tendrils were a little brighter, with a little more reddish-purple color, and more clearly defined. I switched off the overhead light and its display really stood out. There was ambient light from the adjacent living room, but the ball really looked bright and the tendrils were lit up really well. Very cool looking and 500 percent better than anything I had seen at the department stores (of course those are under those very bright flourescent store lights).Read more ›
|Length: 1:49 Mins|
Some of you might be thinking about purchasing a smaller one to save money, take my advice, don't. Trust me on this, once you get this 8" ball, you will be glad you did. And keep in mind you are still saving money, cause years ago these things cost between $100 to $200 dollars. You don't believe me how beautiful and cool this thing is? Just watch the video! :-)
UPDATE NOV, 19 2010
I just wanted to let you all know that my plasma ball has officially already died! I only put a total of 3-hours on it at the most. I now give this product a 1 out of 5.
The globe itself if 8" in diameter and has a central electrode inside that emits the lighted "plasma" arcs.
As far as being an educational toy, it's fantastic because it gives a pretty hands-on display of the 4th state of matter, which is plasma. You can't get a better display of plasma than this, other than looking at a neon sign or telescope pictures of neublas or solar flares.
It works by charging special inert gases and noble gases (neon, xenon or krypton) in a vacuum inside the sphere with high frequency (30,000+ hertz, household AC current is 60 hertz), high voltage (2,000+volts) DC electrical current from a transformer in the base. The electric charge comes out of the electrode and excites the gases' electrons and causes them to illuminate as plasma filaments eminating from the center electrode. The filments reach out from the source to touch the glass sphere, which acts like an insulator to block the current from coming out.
When you touch it with your hand (the body is conductive and has good resistance) the high frequency electromagnetic field (flourescent tubes also have this) around the sphere is altered and a single filament of plasma forms from the inner electrode and flows to the contact point.
Now, these are fascinating things, but the physics that makes them work also makes them a little dangerous. The high frequency electromagnetic field surrounding the sphere can cause problems with other electronic devices. It can cause electromagnetic interference, put stress on delicate electronic components, or even damage circuits.Read more ›
warranty ran out. Amazing timing.
Otherwise the unit performed fine. It looked fine while it worked and
delivery from the supplier here at Amazon was great.
If your buying this be aware the warranty out of the box is 30 days for a reason.
When I opened the box and saw the warranty period I knew I had a potential
piece of junk on my hands.
I left mine on pretty much non-stop during the period I had it on display.
There were periods of non use but it was on more often than not.
The power supply is a external wall wart that supplies 12-16v AC to the plasma
ball and it runs wall wart runs HOT, very hot.
If your buying this be aware that the wall wart power supply runs so hot it could be considered a serious fire risk. The heat indicates a serious design error. It is made in China...
After the unit died I replaced the wall wart with a larger more robust 12V AC supply in the hopes that was the cause of death. It was not. The problem
is somewhere in the inside of the unit. As I write this I do not know if it
was a loss of rare element gas inside the ball envelope or a problem with
the high voltage supply inside. I suspect the latter.
P.S. I checked the output of the above mentioned Wall Wart and my larger
much more robust supply with a Fluke multimeter. Both units were supplying
the specified voltage the plasma ball requires.
Also, the plasma ball itself (the plastic base) does not run very hot, merely
warm, as expected. (when it worked).
As others have stated this unit would be very tip over prone.Read more ›
Most Recent Customer Reviews
My students in my middle school physics class loved this Plasma Ball. We had so much fun experimenting with it. Thank you!Published 1 month ago by awesome this Works great!!!!!!!!!!!!
Bought this for my 10 year old after a trip to the Science Museum where they sold similar items. Great product, he really loves it.Published 1 month ago by Hongkongfooy
Eploded after 5 woking minutes REALLY DISAPOINTING i dont recommend anyone to buy itPublished 1 month ago by ramy omar mostafa
Can't say enough good things about this amazing light. Everyone who visits is SO impressed! We've had no issues with it overheating or breaking, and we've been using it steadily... Read morePublished 1 month ago by JustKelly