Sciencemadness Discussion Board
Not logged in [Login - Register]
Go To Bottom

Printable Version  
 Pages:  1  ..  21    23
Author: Subject: Making fire (youtube collaborative video)
hkparker
International Hazard
*****




Posts: 601
Registered: 15-10-2010
Location: California, United States
Member Is Offline

Mood: No Mood

[*] posted on 23-9-2012 at 17:16


Thank you Bot0nist.

As no one seems to want to type up the write up I will, hopefully tonight or so, and then go live. Expecting it to be up within 24 hours or so.

EDIT:

Also in the past we decided to donate all revenue to SM. I haven't done that yet because in this entire last year, that video has made $2.61. After paypal fees I don't think that would help anyone much.

I still plan on donating everything from these videos to SM, but once we make enough for it to count. I will keep everyone posed of course.

[Edited on 24-9-2012 by hkparker]




My YouTube Channel

"Nothing is too wonderful to be true if it be consistent with the laws of nature." -Michael Faraday
View user's profile Visit user's homepage View All Posts By User
hkparker
International Hazard
*****




Posts: 601
Registered: 15-10-2010
Location: California, United States
Member Is Offline

Mood: No Mood

[*] posted on 26-9-2012 at 10:06


My last post is too old to edit, so sorry for the double post.

Video is live: https://www.youtube.com/watch?v=bOxAYU7Ts9E




My YouTube Channel

"Nothing is too wonderful to be true if it be consistent with the laws of nature." -Michael Faraday
View user's profile Visit user's homepage View All Posts By User
triplepoint
Hazard to Others
***




Posts: 127
Registered: 11-4-2012
Location: U.S.
Member Is Offline

Mood: in equilibrium

[*] posted on 26-9-2012 at 20:14


well done. thank you. the text screens and narration give it a polished look.
View user's profile View All Posts By User
Eddygp
International Hazard
*****




Posts: 850
Registered: 31-3-2012
Location: University of York, UK
Member Is Offline

Mood: Organometallic

[*] posted on 27-9-2012 at 06:44


incredible videos!



there may be bugs in gfind

[ˌɛdidʒiˈpiː] IPA pronunciation for my Username
View user's profile View All Posts By User
Formatik
International Hazard
*****




Posts: 927
Registered: 25-3-2008
Member Is Offline

Mood: equilibrium

[*] posted on 10-10-2012 at 22:34


The final video looks great. Good work everyone.
View user's profile View All Posts By User
Morgan
International Hazard
*****




Posts: 1327
Registered: 28-12-2010
Member Is Offline

Mood: No Mood

[*] posted on 20-12-2013 at 18:09


Quote: Originally posted by Morgan  
Quote: Originally posted by Morgan  
This is pretty left field but I wonder if a bombardier beetle could ignite a small vessel with CS2 vapor and air if you directed his abdomen toward the said arrangement?
CS2 - Auto-ignition temperature: 90°C

Or would his chemical reaction go better in a pure oxygen atmosphere? Seems there must be something he could ignite with his chemical entourage.
http://sps.nus.edu.sg/~yanganqi/angel6.pdf
http://www.youtube.com/watch?v=3sHo8lokQlA&playnext=1&am...

I came across another tidbit of interest. The article is from Proceedings of the National Academy of Sciences.
"An early explorer, reporting on large bombardier beetles from the neotropics, commented that when these “play off their artillery” they are so hot to the touch “that only few (can) be captured with the naked hand” (19).
http://www.pnas.org/content/96/17/9705.full
http://www.swedishbiomimetics.com/umist.htm
In all the old demonstration books they talk of nitrogen triiodide being sensitive enough to be set off by a fly, but it would be amusing to have a demonstration of a beetle starting a fire I think.
I remember sparking a sealed 2 liter plasitc bottle filled with CS2 vapor and yellow sulfur plating out on the sides of the bottle. The bottle dd not rupture, but briefly expanded ever so slightly. Maybe some of you more knowledgable out there have an idea of some substance that would ignite with products of the beetle's spray. Not that I would want to inflame a beetle, but design it so you could segregate him from any harm.
And yes, I don't have any illusions of anyone really wanting to or going out and trying this, it's just a thought experiment. Although, if I did live in the neotropics, it might be something to tinker with on a rainy day. It makes you wonder if nature could have, given enough time, invented some creature that conjures fire, other than man.


Ross Piper: Burnt by a bombardier beetle! - Wild Burma: Natures Lost
http://www.youtube.com/watch?v=UjfYpWerLQE
View user's profile View All Posts By User
TheChemiKid
National Hazard
****




Posts: 493
Registered: 5-8-2013
Location: ̿̿ ̿̿ ̿'̿'̵͇̿̿з=༼ ▀̿̿Ĺ̯̿̿▀̿ ̿ ༽
Member Is Offline

Mood: No Mood

[*] posted on 21-12-2013 at 02:38


What about peroxymonosulfuric acid and any flammable organic (Acetone, Ethanol, Methanol, Benzene, etc)



When the police come


\( * O * )/ ̿̿ ̿̿ ̿'̿'̵͇̿̿з=༼ ▀̿̿Ĺ̯̿̿▀̿ ̿ ༽
View user's profile View All Posts By User
Morgan
International Hazard
*****




Posts: 1327
Registered: 28-12-2010
Member Is Offline

Mood: No Mood

[*] posted on 22-12-2013 at 08:09


Maybe you could stairstep the steamy heat from a bombardier beetle to activate a thin platinum wire or gauze, thus replacing the typical platinum sponge affixed to platinum wire that early lighters used. According to this reference, the critical temperature for platinum wire to light O2/H2 mixtures is 50 C. (page 1092) I wonder what amount of heat would be required for air/H2 or something less bother like methanol and air?
Imagine having the beetle heat activate the platinum wire and by some mechanism quickly sequester or gate the bombardier so as not to damage the "lighter" for repeated ignitions. If the spray didn't poison the catalyst, the chain of events could be an artistic albeit highly impractical bombardier beetle ignition system. Recall this playful design.

"Dobereiner himself suggested that one could “embellish it
with two alchemical symbols, namely the lion
and the snake, and so arrange it that the snake
takes the place of the capillary tube for the
stream of hydrogen and the open jaws of the
lion sitting opposite the snake hold the
platinum.”

There were quite a few details in methodology in this chapter on combustion, with everything under the sun they could try to gain understanding, and odd things too like the seemingly improbable accounts of tape measures and umbrellas spontaneously catching fire. (top of page 1094)
http://books.google.com/books?id=A-dYAAAAYAAJ&pg=PA1092&...
View user's profile View All Posts By User
AJKOER
International Hazard
*****




Posts: 2672
Registered: 7-5-2011
Member Is Offline

Mood: No Mood

[*] posted on 10-1-2014 at 10:18


Quote: Originally posted by hkparker  
.... I have mixed calcium hypochlorite and acetone and it doesnt react unless there is water in it to dissolve the ClO-, at least the reaction isnt visible. I think Ca(ClO)2 will react with many things to start a fire, sulfur sounds worth a try. I think it would be great if you got involved Mewrox99.


I believe the underlying agent here is Cl2O (dichlorine oxide). The action of CO2 on moist Ca(ClO)2 is said to liberate Cl2O This gas will explode on contact with turpentine,... My take on the reaction:

Ca(ClO)2 + H2CO3 --> CaCO3 (s) + 2 HOCl (see http://en.wikipedia.org/wiki/Cl2O)
2 HOCl = Cl2O + H2O

Another example is when water is added to TCCA forming HOCl. If the Hypochlorous acid is sufficiently concentrated, Cl2O is liberated which will explode on contact with ammonia. So, dipping drops of aqueous ammonia on TCCA has been described as violent/explosive. Another possible explanation is the formation of explosive vapors of Chloramine:

NH3 + HOCl = NH2Cl + H2O (see, for example, http://www.vl-pc.com/tasks/render/file/?fileid=0FFF2647-CE39... )

Similarly, as 2 HOCl = Cl2O + H2O

2 NH3 + Cl2O = 2 NH2Cl + H2O

However, the above reaction is speculative, a possible intermediate reaction, in an explosive scenario. A frequently cited version is, for example:

3 Cl2O + 10 NH3 --> 6 NH4Cl + 2 N2 + 3 H2O (see http://books.google.com/books?id=Fs4zQ-hNTz8C&pg=PA509&a... )

Interestingly and I find amusing, old write-ups on Chloramine correctly employ the adjective 'toxic' in its description. However, given its more recent political endorsement as a water chlorination agent in certain jurisdictions, one may be more hard pressed to see this modifier. Case in point, Wikipedia piece on NH2Cl does not contain the word toxic, but, in its defense, uses the term 'genotoxicity' (which relates to its ability to damage DNA and lead to cancer) once for associated by-products when employing Chloramine.
-------------------------------------------------------------------------------

Quote: Originally posted by Chemistry Alchemist  
Chlorine and Hydrogen... in a plastic bag and take a picture of it with a camera with flash on... very quick explosion (light is produced from the heat probly a bit of fire)
http://www.youtube.com/watch?v=DjbRH6bSIIw&feature=relat...

could this be included or dont explosive reactions work?


If trying to replicate this chain reaction ignition, note that oxygen is said to poison the reaction chain (so no explosion). In my opinion, the hard part is actually filling the plastic bag with a heavy gas (Cl2) and a very light hard to contain gas (H2) without having any air present and avoiding strong sunlight (uv light presents a premature detonation issue). The H2/Cl2 explosion displays significant kinetics (translation, powerful, so beware and do not use a large vessel).

[Edited on 11-1-2014 by AJKOER]
View user's profile View All Posts By User
Morgan
International Hazard
*****




Posts: 1327
Registered: 28-12-2010
Member Is Offline

Mood: No Mood

[*] posted on 26-8-2014 at 15:18


Döbereiner Lighter
https://www.youtube.com/watch?v=1V0rIo8c7qc
View user's profile View All Posts By User
Morgan
International Hazard
*****




Posts: 1327
Registered: 28-12-2010
Member Is Offline

Mood: No Mood

[*] posted on 10-1-2015 at 09:58


A variation that saves the test tube.
Explosion vapor high molecular weight hydrocarbons
https://www.youtube.com/watch?v=lwozW1puNb0
View user's profile View All Posts By User
kecskesajt
National Hazard
****




Posts: 299
Registered: 7-12-2014
Location: Hungary
Member Is Offline

Mood: No Mood

[*] posted on 15-2-2015 at 05:05


I know the Q is old but here is another reaction using nitrating acid and turpentine: http://www.youtube.com/watch?v=8yFO2i5X1MU
Skip to 5:00

[Edited on 15-2-2015 by kecskesajt]
View user's profile View All Posts By User
Ragbips
Harmless
*




Posts: 6
Registered: 22-2-2011
Location: The Netherlands
Member Is Offline

Mood: No Mood

[*] posted on 3-3-2015 at 06:23


I have some old, kinda poor quality videos to share from when I was younger (and more reckless)

Water activated flash (silver nitrate + magnalium)
https://www.youtube.com/watch?v=-gbNxJ_GjIA

Fire by dumping sugary stuff in molten potassium perchlorate
https://www.youtube.com/watch?v=Of44gaRWRwk

Manganese heptoxide and acetone
https://www.youtube.com/watch?v=A22w0iw_O6g

"Lightning" by manganese heptoxide in IPA, should count as fire
https://www.youtube.com/watch?v=q3FuSVnGdSg
View user's profile View All Posts By User
 Pages:  1  ..  21    23

  Go To Top