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  • SEOH Fire Syringe Boyle's Law Compression Engine Demonstration
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by SEOH

SEOH Fire Syringe Boyle's Law Compression Engine Demonstration


Price: $11.70 + $6.92 shipping
In Stock.
Ships from and sold by Scientific Equipment of Houston.
5 new from $11.70

Specifications for this item
Brand Name SEOH
Included Components Arbor Scientific Data sheet
Item Weight 0.61 pounds
Number of Items 1
Part Number 321-1LC

Amazing flashy demonstration of The Gas Law. This is used to demonstrate Gas Law and Diesel Engin... Read full product description



WARNING:
CHOKING HAZARD -- Small parts. Not for children under 3 yrs.

Product Features

  • Great demonstration
  • Will get students asking How and Why

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Product Details

  • Item Weight: 9.8 ounces
  • Shipping Weight: 2 pounds (View shipping rates and policies)
  • ASIN: B0088AR2I2
  • Item model number: P1-2020
  • Average Customer Review: 1.8 out of 5 stars  See all reviews (12 customer reviews)
  • Amazon Best Sellers Rank: #64,285 in Industrial & Scientific (See Top 100 in Industrial & Scientific)
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Frequently Bought Together

SEOH Fire Syringe Boyle's Law Compression Engine Demonstration + Fire Syringe
Price for both: $28.45

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Product Description

Amazing flashy demonstration of The Gas Law. This is used to demonstrate Gas Law and Diesel Engine Principle. Rapid compression of air in the chamber ignited a tiny small bit of tissue paper or a wisp of cotton. The principle being that reducing the volume of a gas increases it pressure and temperature, there by causing the paper or cotton to ignite till all the oxygen is used up. Comes complete with spare O Rings and cotton.

Customer Questions & Answers

Customer Reviews

1.8 out of 5 stars
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Most Helpful Customer Reviews

26 of 26 people found the following review helpful By Jesse Ritz on March 22, 2010
Verified Purchase
This is not a toy; the plastic column has 1/4" thick walls and the piston is 5/16" steel. There are no piezo crystals, batteries or flints to go bad... it just uses air compression. Arbor Scientific has another great science product from Americian Scientific for classroom or home use.

The 'fire syringe' comes with enough raw cotton wool for about a dozen demonstrations. Instructions tell you to dry the inside of the tube with a bit of paper towel (rolled up) before using it. **The cotton will not ignite if you don't.** Not all cotton balls are cotton; look for the 'cotton bud' label on your package.

Before each use: check that the knob on top is tight. You have to pound on that with the palm of your hand; you don't want the threads getting stripped. After many uses lubricate the O rings with silicon oil to keep them from wearing (you get a spare set). Using a bit of cotton the size of a BB seems to make the most satisfying flash!
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11 of 11 people found the following review helpful By Tuckjet on December 7, 2010
Verified Purchase
The Fire Syringe works as intended, demonstrating the principle of Adiabatic Combustion. But the one I ordered broke from the base because the threads were not long enough, and therefore screw-in far enough into the base and broke after a few uses. The tube still works, but now requires glue or epoxy to affix it securely.
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11 of 11 people found the following review helpful By bryan on November 17, 2011
Verified Purchase
I purchased this for use in a high school chemistry class. After one use the top came off and I could not screw it back on. The base is also poorly connected. I would not buy this again.
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2 of 2 people found the following review helpful By ARL on June 12, 2012
Verified Purchase
Do NOT Buy this one! So I bought this because I wanted to teach the science behind it - I had seen YouTube videos of the concept and thought Ok this should do the trick... but now that I have it... I'm thinking shucks this thing is crap... and poorly demonstrates the idea. They give you some cotton in the box, and you have to fiddle with it to get the correct size that will do anything - about a speck size. Then you see some smoke - and after about 50 tries one student actually got a flash, but of course after each try you have to take out the smoking speck to put another un-singed piece in there, which is also really hard to do. So - it might be worth trying to get the specks out if it made a consistent flash - but I would most certainly recommend trying any other product but this one to get that lovely flash you see on the videos.
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2 of 2 people found the following review helpful By Robert C. Dunehew on April 27, 2013
Verified Purchase
Upon unpackaging this little device I immediately began following the instructions and had finally gotten my first ignition within the chamber when I dropped it from an altitude of ~ 40=50" (just above the kitchen counter. When I picked it up, the handle on the plunger was loose. Subsequent efforts to reattach the thing seem to be impossible because the threads on the plunger are significantly smaller than the threads on the threaded insert inside the handle.

I'm amazed that a product made of durable, robust materials should have such a fragile part. I halfway suspect it had been glued in place and that the drop had fractured the glue. The device itself may benefit from a repair in future, but I will not purchase another by this manufacturer.
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1 of 1 people found the following review helpful By Jason Isaacs on October 17, 2012
Verified Purchase
I have not been able to get it to work once yet. I emailed arbor but no response. Very disaapointing.
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