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Author Topic: Practical Jokes  (Read 84118 times)

Offline scotty234

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Practical Jokes
« on: 09/05/2005 21:38:35 »
1
« Last Edit: 10/04/2014 20:00:07 by scotty234 »


 

Offline realmswalker

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Re: Practical Jokes
« Reply #1 on: 10/05/2005 02:42:46 »
put acid of some sort in your teachers cofee...
 

Offline Ians Daddy

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Re: Practical Jokes
« Reply #2 on: 10/05/2005 22:41:50 »
You could line the bottom of their drinking glass with pure sodium and set it next to a water pitcher....and wait for the fun to ensue!! It always gets a good laugh.
 

Offline neilep

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Re: Practical Jokes
« Reply #3 on: 10/05/2005 22:44:13 »
how about laxatives...that will set off a few chemical reactions !

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Offline DoctorBeaver

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Re: Practical Jokes
« Reply #4 on: 17/05/2005 12:14:49 »
Heh, the sodiun 1 is a hoot!

It wasn't me - a big boy did it & ran away
 

Offline neilep

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Re: Practical Jokes
« Reply #5 on: 17/05/2005 12:49:47 »
What does the sodium one do ?

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Offline Ians Daddy

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Re: Practical Jokes
« Reply #6 on: 18/05/2005 05:09:01 »
KABOOM!
 

Offline DoctorBeaver

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Re: Practical Jokes
« Reply #7 on: 18/05/2005 12:56:27 »
I remember being somewhat naughty at school & pinching a matchbox-sized piece of sodium from the chem lab. We had our own swimming pool at school & I chucked the sodium in during a gala. Although my fellow pupils were highly amused the teachers were none too pleased (to put it mildly). Oh I wish the cane had already been banned by that time!
 

Offline rosy

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Re: Practical Jokes
« Reply #8 on: 18/05/2005 13:21:34 »
The actual chemistry goes about like this:

Sodium reacts with water to form sodium hydroxide and hydrogen.
The reaction produces heat, causing the hydrogen to ignite and burn in the oxygen from the air.
Na (s) + H2O (l) --> Na+ (aq) + OH- (aq) + 1/2 H2 (g)
then
2 H2 (g) + O2 (g) --> 2 H2O
So you get a load of heat/light.

quote:
a matchbox-sized piece of sodium

That's quite a lump of sodium.
 

Offline Deanwinfield

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Re: Practical Jokes
« Reply #9 on: 18/05/2005 21:27:11 »
thats a HUGE lump! How big was this kaboom?! Would have been better if it was potassium. Nothing more though, we dnt want people getting injured!

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Offline DoctorBeaver

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Re: Practical Jokes
« Reply #10 on: 18/05/2005 21:30:31 »
The kaboom was enormous & a fair few people got more than just a little wet.

It wasn't me - a big boy did it & ran away
 

Offline PhirePhly

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Re: Practical Jokes
« Reply #11 on: 20/05/2005 04:04:23 »
quote:
Originally posted by Ruzz5000

Does anyone know of any practical joke using easy to obtain elements, i have seen a couple but i couldn't remeber them
with thanks Russ



I remember one involving different states of matter and food.

Fill a balloon with grape juice and freeze it (preferably so that it stays round, like floating in a shallow bowl of water in the freezer).

Get a bowl big enough to just swallow the grape juice ball and make a big batch of gelatin (lime green or something translucent).  Just before it's completely firm, push the grape juice ice ball down into it so that it's completely surrounded by gelatin.

When you tip the gelatin out onto a plate, it will appear to have a second, purple bit of gelatin inside, but when you cut into it, the grape juice just gushes out.

Maybe not exploding sodium, but certainly something to get your guest's attention at a dinner party.

Thanks,
 
L. Lisov
 

Offline neilep

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Re: Practical Jokes
« Reply #12 on: 20/05/2005 08:50:59 »
So how does one procure a lump of sodium ?....do you go to Sodium Blocks R Us ?...presumably I just can't waddle into my local chemist/pharmacist/drugstore/chemical dealer with a cheeky grin and ask for a chunk of sodium eh ?


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Offline simeonie

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Re: Practical Jokes
« Reply #13 on: 20/05/2005 18:00:18 »
frantium is really explosive in water isn't it? or is it called francium.... cnt remember!

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Offline rosy

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Re: Practical Jokes
« Reply #14 on: 20/05/2005 18:05:59 »
http://www.thenakedscientists.com/forum/topic.asp?TOPIC_ID=1014

It's Francium. There was a discussion of this a little while ago, and I think the conclusion was that Francium, if you can get hold of it (which is tricky as it's radioactively unstable), would react pretty vigorously with water but possibly less so than Caesium (immediately above Francium in group I) as it's stabilised (or whatever) by relativistic effects.
 

Offline Ultima

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Re: Practical Jokes
« Reply #15 on: 20/05/2005 18:15:04 »
Yup it's a shame you can't get hold of Francium ;). It's only made in a handful of atoms at a time. If you did somehow get a chunck of it, it would react strongly? So it would be a bit dangerous to say the least.

wOw the world spins?
« Last Edit: 20/05/2005 18:18:04 by Ultima »
 

Offline ljssol

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Re: Practical Jokes
« Reply #16 on: 07/06/2005 10:01:34 »
:DI'm happy to have this webpage. I hope it would help me a lot.
 

Offline johndiver

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Re: Practical Jokes
« Reply #17 on: 08/06/2005 04:55:17 »
I saw a pellet of sodium fizz like crazy before the hydrogen exploded ... the teacher dropped it into a bucket of water at our chemistry club; didn't expect the bang though.
My favourite chem prank is to put a few drops of indicator dye into one's beer or coffe, then wait for them to scream when they pee red or blue. Although phenolphthalein has some carcinogenic properties, a few drops is all that's required.
 

Offline rabeldin

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Re: Practical Jokes
« Reply #18 on: 28/06/2005 22:31:38 »
Too complicated. I just filled the sugar bowl with salt.

R A Beldin,
Improbable Statistician
 

Offline Andrew K Fletcher

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Re: Practical Jokes
« Reply #19 on: 08/07/2005 15:52:15 »
Iron ferrous sulphide and I think sulphuric acid, or was it nitric acid?

Anyways, it makes the foulest smelling stink bomb, managed to stink out the local boozer with this mixture, had everyone holding their noses :)
 

Online chris

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Re: Practical Jokes
« Reply #20 on: 09/07/2005 10:50:55 »
Was it the mixture, or merely the madras you'd consumed earlier ?

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Offline simeonie

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Re: Practical Jokes
« Reply #21 on: 09/07/2005 20:10:01 »
OH I really wanna do the stink bomb one. Would you like put it in a small jar or something? How much do you need and how do you get hold of it? Is it expensive?

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Offline Andrew K Fletcher

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Re: Practical Jokes
« Reply #22 on: 10/07/2005 10:26:16 »
just a tiny jar or bottle with a little acid in and drop in a small amount of iron ferrous sulphide, (or sulphate, not really sure now) readilly available at any chemical outlet. inexpensive also. You may be able to obtain some from your chemistry class.

again, not sure if the fumes were toxic, but the acid definately will burn holes in your clothes and skin so take care when using it.

Chris, naa this was far worse than any madras methane production.

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« Last Edit: 10/07/2005 15:06:06 by Andrew K Fletcher »
 

Offline simeonie

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Re: Practical Jokes
« Reply #23 on: 20/07/2005 11:01:53 »
ooooo this is soooo tempting. My friend got banned from a news agents for setting off a stink bomb off. What a goon he is lol
« Last Edit: 14/06/2009 19:28:45 by BenV »
 

Offline David Sparkman

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Re: Practical Jokes
« Reply #24 on: 28/07/2005 17:08:01 »
Ouch,
A practial joke doesn't hurt people.

Try to add some methylene blue solution to food in such a way that it can't be seen: a dark drink, or add crystals to a food where they don't stand out. It is available at pet stores as it is used in fish tanks to kill ick a fungus. The stuff is not considered poisonous, but don't go overboard as a few drops or crystals will do the trick.

Methylene blue is a dye and will stain the tongue and mouth blue for a day, and even more interesting (for men only, women don't watch) it turns their urine green...

David
 

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Re: Practical Jokes
« Reply #24 on: 28/07/2005 17:08:01 »

 

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