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Fun with Fog Generators

michael posted more than 11 years ago | from the alone-in-the-dark dept.

Toys 223

BoomZilla writes "Only 10 or so shopping days to Halloween. If you're at a loss for a project this weekend check out gotfog.com for a full set of detailed instructions on the construction of a Fog chiller. "What's a fog chiller?" you may ask. And rightly so. Let me explain. A fog machine dumps fog juice on a heating plate to produce oodles of the white, floaty stuff. Problem is that it doesn't hug the ground like you see in the movies. An alternative that is employed to create the ground-hugging variety of fog is a dry ice machine (which heats up dry ice and disperses the resultant cloud of fog). The problem is that dry ice is (a) expensive and (b) not always that easy to get. Enter the fog chiller. The chiller can be built very inexpensively (major cost is the sacrifice of a largish cooler) and works with a regular fog machine that consumes low-cost fog juice. Go on, give it a try. You know you want to. And just imagine the look on the faces of your little ghouls and ghosts come the 31st when your house looks like boot hill on steroids."

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223 comments

Jennifer (0, Offtopic)

Anonymous Coward | more than 11 years ago | (#4486116)

I wish you would talk to me.

Re:Jennifer (-1, Offtopic)

Anonymous Coward | more than 11 years ago | (#4486177)

Get lost, creep; I have nothing to say.

Re:Jennifer (-1, Troll)

Anonymous Coward | more than 11 years ago | (#4486300)

Jennifer is a slut.

Not fp (-1)

Fecal Troll Matter (445929) | more than 11 years ago | (#4486124)

Just checking to see if I'm still BANNED, cause I have been for 6 days. k thnx.

Hey FTM! (-1, Offtopic)

Anonymous Coward | more than 11 years ago | (#4486141)

FTM:

I know being arrested with twinkies stuffed up your anus in the bathroom of the girl scout meetinghouse, and the ensuing public degradation, were a terrible blow for you, but I want you to know, not -all- of us are filled with loathing.

Dry Ice (5, Funny)

++good-duckspeak (584950) | more than 11 years ago | (#4486128)

The problem is that dry ice is (a) expensive and (b) not always that easy to get.

(c) could get you put on a list of suspected pot growers faster than a subscription to High Times.

Re:Dry Ice (5, Interesting)

jigokukoinu (549392) | more than 11 years ago | (#4486146)

At least in the city where I live, dry ice is as easy to get as an ice cream cone. Baskin-Robbins sells it for a few dollars a pound or so. What this has to do with growing marijuana, I have NO idea!

Re:Dry Ice (4, Funny)

Imperial Tacohead (216035) | more than 11 years ago | (#4486170)

Geez, another amateur. It's guys like you that gives professional dealers like me a bad name!

Re:Dry Ice (-1, Troll)

Anonymous Coward | more than 11 years ago | (#4486417)

What?! Statistically, that combined with your language, assumes you are one of those niggers [blacks, afroamericans, home boys, whatever], doesn't it? Please, knock it off. Get a banana instead. It is so much more healthy.

Re:Dry Ice (5, Informative)

Anonymous Coward | more than 11 years ago | (#4486172)

How Do I Freeze Dry Grass?

Use a container (I use a Tupperware box) that is twice as big as the volume of grass you wish to dry. Make a few small holes in the lid, to allow the gas to escape. Put equal volumes of bud and dry ice inside, loosely packed, with the dry ice underneath the bud. Put the lid on and make sure it is properly sealed so that the only way for gas to escape is through the holes in the lid. Put the box into a freezer, lid upwards. This is to keep the material as cold as possible, prolonging the sublimation process for as long as possible. The dry ice will begin to sublime pushing all air out of the box and surrounding your buds with bone dry co2. The totally dry atmosphere will begin drawing water molecules out of the plant material. Check the tub after 24 hours and then every 24 hours until the dry ice has all gone. When the ice is all gone -the buds should be completely dry and smokeable. If you find that they are not quite dry then put some more dry ice into the box, place the lot back in the freezer and wait until they are done.

Re:Dry Ice (2, Funny)

BigJim.fr (40893) | more than 11 years ago | (#4486218)

Good tip. Mod this up guys !

Flamebait? Not. (0)

Anonymous Coward | more than 11 years ago | (#4486333)

Modded as Flamebait? I think not. It was relevant to the parent post and informative.

This method seems a lot better than the smelly method my friend used to use: turn the oven on low until it was dry.

Re:Flamebait? Not. (2, Informative)

Anonymous Coward | more than 11 years ago | (#4486368)

This method seems a lot better than the smelly method my friend used to use: turn the oven on low until it was dry.

Ack! The only thing that will stink up your kitchen worse is doing knife hits off the burners.

Werd to my motha fuckn dead troll homies (-1, Troll)

Anonymous Coward | more than 11 years ago | (#4486129)

This one goes out to teh T45TYBURR1t0!!!1

Fog chiller already in the works! (5, Interesting)

jigokukoinu (549392) | more than 11 years ago | (#4486131)

In only a few hours, I will be helping in the construction of one of these! We already have all of the materials.

Glow sticks and some tin foil reflectors make for good glowing green fog, by the way. :)

Theory: Suck air over ice to chill air for fogger (0)

Anonymous Coward | more than 11 years ago | (#4486303)

A summary of the site is that you can suck cool air into your fog machine and make the fog hug the ground.

Use an ice chest with vents cut in both ends, filled with ice (or dry ice) and place the fog machine inlet close to the outlet of the ice chest.

You can adjust the amount of chill/use of ice by moving the fogger inlet closer or farther from the vent.

Design your own and make a web page to get slashdotted!

Do they work on servers too? (4, Funny)

xactoguy (555443) | more than 11 years ago | (#4486132)

Heh... they'll need a lot more than a Fog Chiller to cool down their overheating processors as the /. wave hits ;)

Re:Do they work on servers too? (0)

Anonymous Coward | more than 11 years ago | (#4486154)

oh man, only 7 comments and the server is already slashdotted to hell...

Re:Do they work on servers too? (0)

Anonymous Coward | more than 11 years ago | (#4486275)

I think we need a (-1 Trying to be funny, but isn't) moderation.

Fog in dorms.... (5, Funny)

svwolfpack (411870) | more than 11 years ago | (#4486133)

My friend bought a fog machine for his dorm room last year, and because he thought his fire alarm was heat and not particle detecting, he filled his room with fog. Turns out, it was a particle detector after all, the fire alarm went off, school security came and made fun of him mercilessly for intentionally filling a room with smoke... then they wrote him up. It was funny...

Re:Fog in dorms.... (2, Funny)

Saint Stephen (19450) | more than 11 years ago | (#4486264)

We did *exactly* the same thing in college... A friend was testing it out b/c he was going to use it at a rock show. It puts out *a lot* of smoke.

He got a misdimeanor from the fire dept. When they knocked on the door, he tried to play it off like he was in the bathroom and didn't know what had happened.

Oh, one thing: these things leave oily residue all over *everything*....

Re:Fog in dorms.... (5, Funny)

rabidcow (209019) | more than 11 years ago | (#4486363)

That's nothing.

I was doing some work for a laser light show company last year in Las Vegas. We were going to try some air effects in the huge conference room in the Paris Hotel. I was told to fill the room with fog, but no one told me how much it would take. (Apparently it takes so little that you can't even see it...)

So I ended up filling a football field sized room with fog so thick you couldn't see the walls and setting off the fire alarm in the Paris Hotel at about 2 AM.

Luckily I was just a pitiful underling, and we did have permission to use fog...

That's not fog! (0, Offtopic)

egg troll (515396) | more than 11 years ago | (#4486135)

Those are just fumes coming off a BSD kernel developer!

Re:That's not fog! (0)

Anonymous Coward | more than 11 years ago | (#4486184)

hilarious.....

NOT!

*BSD is dying (-1, Troll)

Anonymous Coward | more than 11 years ago | (#4486204)

It is official; Netcraft confirms: *BSD is dying

One more crippling bombshell hit the already beleaguered *BSD community when IDC confirmed that *BSD market share has dropped yet again, now down to less than a fraction of 1 percent of all servers. Coming on the heels of a recent Netcraft survey which plainly states that *BSD has lost more market share, this news serves to reinforce what we've known all along. *BSD is collapsing in complete disarray, as fittingly exemplified by failing dead last [samag.com] in the recent Sys Admin comprehensive networking test.

You don't need to be a Kreskin [amazingkreskin.com] to predict *BSD's future. The hand writing is on the wall: *BSD faces a bleak future. In fact there won't be any future at all for *BSD because *BSD is dying. Things are looking very bad for *BSD. As many of us are already aware, *BSD continues to lose market share. Red ink flows like a river of blood.

FreeBSD is the most endangered of them all, having lost 93% of its core developers. The sudden and unpleasant departures of long time FreeBSD developers Jordan Hubbard and Mike Smith only serve to underscore the point more clearly. There can no longer be any doubt: FreeBSD is dying.

Let's keep to the facts and look at the numbers.

OpenBSD leader Theo states that there are 7000 users of OpenBSD. How many users of NetBSD are there? Let's see. The number of OpenBSD versus NetBSD posts on Usenet is roughly in ratio of 5 to 1. Therefore there are about 7000/5 = 1400 NetBSD users. BSD/OS posts on Usenet are about half of the volume of NetBSD posts. Therefore there are about 700 users of BSD/OS. A recent article put FreeBSD at about 80 percent of the *BSD market. Therefore there are (7000+1400+700)*4 = 36400 FreeBSD users. This is consistent with the number of FreeBSD Usenet posts.

Due to the troubles of Walnut Creek, abysmal sales and so on, FreeBSD went out of business and was taken over by BSDI who sell another troubled OS. Now BSDI is also dead, its corpse turned over to yet another charnel house.

All major surveys show that *BSD has steadily declined in market share. *BSD is very sick and its long term survival prospects are very dim. If *BSD is to survive at all it will be among OS dilettante dabblers. *BSD continues to decay. Nothing short of a miracle could save it at this point in time. For all practical purposes, *BSD is dead.

Fact: *BSD is dying

dry ice (4, Informative)

sheol (153979) | more than 11 years ago | (#4486142)

The problem is that dry ice is (a) expensive and (b) not always that easy to get.

He obviously hasn't heard of the wonder which I like to call a "grocery store." It's sold at most supermarkets for $0.99/lb. around here...

Re:dry ice (1)

bangzilla (534214) | more than 11 years ago | (#4486181)

Oh, so if you have it your grocery store so must the rest of the world. Kinda self-centered of you, don't you think. In the silicon valley there are about three places you can buy dry ice from -- and it's *expensive*. So there.

Re:dry ice (2)

dattaway (3088) | more than 11 years ago | (#4486373)

My grocery store down the street has a huge cooler of it. What third world country do you live in?

Re:dry ice (2)

-=Izzy=- (80039) | more than 11 years ago | (#4486413)


My grocery store down the street has a huge cooler of it. What third world country do you live in?

Florida, at least for another few months.

Really? (1)

mindstrm (20013) | more than 11 years ago | (#4486278)

What grocery store is that? how do they provide it? what kind of container do they ship it in? where are they getting it? are they making it in the store?

I've never seen a grocery store that sells dry ice (though I've seen them have some around because of dairy shipments that arrive with a few bricks of it to keep things cool)

Re:Really? (1)

Student_Tech (66719) | more than 11 years ago | (#4486328)

I know the grocery store that sold it had a cooler/freezer of some sort. I think the company name on it was "Penguin Ice" but I can't remember.

Re:Really? (1)

mindstrm (20013) | more than 11 years ago | (#4486342)

On further reading it seems this is common in the southern US.

It's not that common elsewhere in the world though.

Re:Really? (1)

sheol (153979) | more than 11 years ago | (#4486346)

it's sold at all 3 albertson's in town here, also at a couple smaller local stores... it's generally given to me in a paper bag. as far as where it's made, i doubt at the store, it comes in 5lb bricks, although they will sell smaller broken chunks...

Re:dry ice (1)

firippu (593681) | more than 11 years ago | (#4486294)

You must be talking about those year-old bags of ice in the bottom of the coolers that have semi-evaporated and turned into a single glacial chunk of dirty ice...

Possible applications (0, Funny)

Ed Avis (5917) | more than 11 years ago | (#4486143)

This chilled fog could be useful for overclocking! Imagine a Beowulf cluster of these!

Re:Possible applications (2)

Monkelectric (546685) | more than 11 years ago | (#4486195)

NO!! NOT FUNNY! ARRRRRRRRRR

Re:Possible applications (1)

WhiteKnight07 (521975) | more than 11 years ago | (#4486273)

I suppose I won't say anything releating to hot grits then.... oh wait...

Re:Possible applications (1, Funny)

Anonymous Coward | more than 11 years ago | (#4486358)

How can you mention hot grits and not mention pouring them down the pants of a naked, petrified Natalie Portman? Not that that makes any sense.

oh? (5, Funny)

kampit (48398) | more than 11 years ago | (#4486145)

And just imagine the look on the faces of your little ghouls and ghosts come the 31st when your house looks like boot hill on steroids.

Or you could just use mustard gas instead of some silly fog, that'll teach the little buggers right enough and betcha they wont come around bothering you the next year anymore. :)

Re:oh? (1)

darkov (261309) | more than 11 years ago | (#4486348)

For a real larf try dusting those lollies with anthrax spores instead of sugar. Gets them every time.

Another technique (5, Funny)

devphil (51341) | more than 11 years ago | (#4486400)


My father used to (jokingly) complain about neighborhood kids on our lawn. (There never were, which was part of the joke.) Then he would confide that he knew the perfect way to keep them off the lawn.

Land mines.

"Tough on that first kid, but they learn quickly," he'd add.

Another problem with dry ice... (5, Funny)

Rui del-Negro (531098) | more than 11 years ago | (#4486147)

The problem with dry ice is there are organised networks that specialise in stealing it. I've tried to dry ice several times (by leaving it out in the sun) and when I got back it was all gone.

RMN
~~~

want smoke? burn all the faggot and nigger (-1, Troll)

Anonymous Coward | more than 11 years ago | (#4486155)

then you have lot of foggy smoke on the nanniboo

Google Cache (4, Informative)

lannocc (568669) | more than 11 years ago | (#4486160)

Here's the Google cache [216.239.53.100] of the page on building a fog chiller.

Next in the scene? (5, Funny)

Nobo (606465) | more than 11 years ago | (#4486165)

Hmmmm. Fog. So it's pretty when you shine colored lights in it... and it's cold. So we've seen cases bathing the entire mobo in chilled mineral water, and ice-mods for mice. How long before we combine the end goals, and see smoke-machine-chilled casemods? :)

And gosh, come to think of it, who'd ever have thought that smoke coming out of your case was an indication of a successful mod?

Re:Next in the scene? (2)

WolfWithoutAClause (162946) | more than 11 years ago | (#4486364)

Oh gooooooood. Condensation on your mobo; just what you need. Oh wait: NOT.

Or you could go the fog juice route; yeah grease all over your mobo, just what you need.

Re:Next in the scene? (2, Interesting)

mythr (260723) | more than 11 years ago | (#4486406)

You could use just the dry ice. Dry ice + warm air = really cold fog that doesn't condense at the temperatures in question. Sure, you'd run out and your processor would start making real smoke, but it'd be a cool temporary thing.

THE TRUTH ABOUT HALLOWEEN (-1, Flamebait)

Anonymous Coward | more than 11 years ago | (#4486173)

Many people celebrate holidays, such as Halloween, without thinking about their origins or true meaning. It is impossible to separate Halloween from the Druids because they originated the "holiday."

For several hundred years before Christ, the Celts inhabited what is now France, Germany, England, Scotland and Ireland. Celtic priests were called Druids. These people were eventually conquered by the Romans.

Information about the Celts and Druids comes from Caesar and the Roman historians, Greek writings from about 200 B.C., and very early records found in Ireland. Greek and Roman writings about the Druids dwell heavily on their frequent and barbaric human sacrifices. The ancient Irish texts say little about human sacrifices, but detail the Druids' use of magic to raise storms, lay curses on places, kill by the use of spells, and create magical obstacles.

Human Sacrifices

Davies, however, a 16th century writer who traced his family lineage directly back to Druid priests who fought against Caesar, clearly describes the human sacrifices of his ancestors and the secret sacrifices still performed regularly by the Druids of his time.

By 47 A.D., Rome finally defeated the Druids in England and outlawed human sacrifices. The few remaining Druids went underground.

Today a growing group of people claiming to be of direct Druid descent, still practice their religion, including human sacrifice. Those in England still perform ceremonies at Stonehenge.

November 1st was the Celtic new year.

October 31st was celebrated by the Druids with many human sacrifices and a festival honoring their sun god and Samhain, the lord of the dead. They believed that the sinful souls of those who died during the year were in a place of torment, and would be released only if Samhain was pleased with their sacrifices.

Monks Fascinated By Druids

Irish records tell of the fascination the Catholic monks had with the powerful Druids, and Druids soon became important members of their monasteries. Pope Gregory the Great decided to incorporate the Druids' holiday into the church. He made the proclamation, "They are no longer to sacrifice beasts to the devil, but they may kill them for food to the praise of God, and give thanks to the giver of all gifts for His bounty." Pope Gregory III moved the church festival of October 31st to November 1st and called it All Hallows or All Saints' Day. Pope Gregory IV decreed that the day was to be a universal church observance. The term Halloween comes from All Hallows Eve.

The founding fathers of America refused to permit the holiday to be observed because they knew it was a pagan holiday. Halloween was not widely celebrated in the U.S. until about 1900. In the 1840's there was a terrible potato famine in Ireland which sent thousands of Catholic Irish to America. They brought Halloween with them.

The modern custom of going from door to door asking for food and candy goes back to the time of the Druids. They believed that sinful, lost souls were released upon the earth by Samhain for one night on October 31st while they awaited their judgment. They were thought to throng about the houses of the living and were greeted with banquet-laden tables. People greatly feared these spirits and thought that the spirits would harm and even kill them if the sacrifices they gave did not appease Samhain. They carved demonic faces into pumpkins or large turnips, placing a candle in them to keep the evil spirits away from their homes.

The tradition of bobbing for apples and giving out nuts came from a Roman addition to the Druidic New Year's eve. The Romans worshiped Pomona who was the goddess of the harvest. They combined their harvest festival to Pomona with Halloween.

Very little archeological evidence of the Druids has been found, but there is excellent agreement between the Roman and Irish documents. Both clearly state that the knowledge of the Druids was never committed to writing but passed from generation to generation by oral teaching. This was to protect their secrets. In his writings, Davies indicates that he came under much persecution by his family for putting in writing his information about Druids. The same is true today. Nothing is put into writing. The Druids continue on secretly with much the same traditions.

The widespread problem of harmful substances such as razor blades, drugs, poisons, needles, etc. being placed in the Halloween treats here in America is no accident. Testimonies of several ex-Satanists show that these children killed and injured by the "treats" are sacrifices to Satan (or Samhain). Satanists throughout the world continue to perform human sacrifices on Halloween.

Is this something you want YOUR child to participate in?

Re:THE TRUTH ABOUT HALLOWEEN (0, Offtopic)

Blacklotuz (575879) | more than 11 years ago | (#4486270)

Actualy, Samhain is one of 8 pegan sabbat days. There are both major and minor sabbats. The major sabbats are Samhain (Oct. 31), Imbolc (Feb. 2), Beltane (Apr. 30), and Lammas (Aug. 1). The minor sabbats are the two equinoxes of March 21 and September 21st and the two solstices on December 21, (the longest night of the year) and June 21 (the shortest night of the year. The celtic people devided the year into two parts, summer and winter. Samhain is the end of the summer half of the year and is also considered to be the first of the new year. Samhain meens 'Summers End'. Samhain is a day to honor the dead, not worship evil. For more information you can search for Samhain on google or go to religioustolerance.org [religioustolerance.org]

Re:THE TRUTH ABOUT HALLOWEEN (2, Informative)

certron (57841) | more than 11 years ago | (#4486344)

For those about to become embarrased by saying Samhain out loud, it is generally pronounced as "So-wen" or "Sah-wen" (or sometimes "Sha-wayn" or "Sho-ween") due to some funky grammar that I can't completely grasp in its entirety. For a simple nmemonic, or whatever this might be called, flip the m upside-down to a w and then pronounce. Easy, no? I won't make spelling comments, since I'm on a laptop with a strange keyboard...

Yes, it is kind of funny how the replies go up in their default moderation points. :-)

Re:THE TRUTH ABOUT HALLOWEEN (0)

Anonymous Coward | more than 11 years ago | (#4486345)

oh, your talking about that day that was adopted by modern paganism.

Re:THE TRUTH ABOUT HALLOWEEN (3, Interesting)

senor_burt (515819) | more than 11 years ago | (#4486288)

Well... Not to prolong a flammable argument, but regardless of faiths, we all have to agree that holidays are celebrated, partly out of tradition and partly out of a response to human need.

If you're going the fundamentalist route, then you might want to boycott Christmas, too - Jesus wasn't born on December 25th - this date was used as a convenience, because it coincided with many non-Christian solstice festivals. (It made it easier to convert the heathens if you could show them how similar your religion was to theirs - not too much change is needed).

I'm just suggesting that for holidays, 'sometimes a cigar is just a cigar'. Relax, and have fun. I can guarantee you that any children out there who turn to Satanism aren't influenced by Halloween.

If you don't feel like that.. (-1, Offtopic)

Anonymous Coward | more than 11 years ago | (#4486174)

You can always join the Microsoft X-box team [microsoft.com] and get to work on Macs (check third picture from the top)

Yeah, I know it's off-topic, but it's just funny seeing how MS seems to be so rabid about giving the impression of running and doing everything on their own OS.

it doesnt matter (-1, Offtopic)

Anonymous Coward | more than 11 years ago | (#4486178)

It doesnt matter because by the time the site has revcovered from the slashdotting halloween will have come and gone. //OaF

There's an easier way.. (-1, Troll)

Anonymous Coward | more than 11 years ago | (#4486180)

If you really want to see fog, just rub the jizz and excess vaseline on your glasses after you beat off.

Nanniboo nanniboo

A google search reveals... (-1, Troll)

Anonymous Coward | more than 11 years ago | (#4486190)

that my girlfriend had a sex change. She used to be Norm Mcdonald.

Dry ice? (1, Redundant)

xercist (161422) | more than 11 years ago | (#4486191)

Expensive? Hard to find?

I think you're on crack. Grocery stores sell dry ice for about a dollar per pound.

you can brew crack cocaine in your mom's ass (-1, Troll)

Anonymous Coward | more than 11 years ago | (#4486202)

so that's pretty cheap too. Plus, what's the fuggin' difference between crack and dry ice and your mother's fecal babies anyway?

Re:Dry ice? (1)

/dev/trash (182850) | more than 11 years ago | (#4486247)

Well to be fair, perhaps he lives in a rural area and can't get to a store that sells dry ice? Or maybe he has a very limited budget and $1.00 a pound is too much.

Re:Dry ice? (1)

bangzilla (534214) | more than 11 years ago | (#4486281)

Duh. Grocery Stores in N.Cal don't sell dry ice.

Re:Dry ice? (1)

shepd (155729) | more than 11 years ago | (#4486365)

>Grocery stores sell dry ice for about a dollar per pound.

Not in Southern Ontario, Canada or North West England. Either that or its extremely well hidden.

What country / area are you from?

Re:Dry ice? (0)

Anonymous Coward | more than 11 years ago | (#4486405)

Not in Southern Ontario, Canada or North West England. Either that or its extremely well hidden.

It is not out in the regular freezer section ( not cold enough ). You have to ask at the service desk.

alternative plans (4, Informative)

10 Speed (519184) | more than 11 years ago | (#4486193)

the site seems to be slashdotted now (is this happening more frequently than it used to?)

but here are plans to build your own fog/smoke machine http://www.juggling.org/help/misc/fog.html [juggling.org]

Back in the day... (5, Funny)

httpamphibio.us (579491) | more than 11 years ago | (#4486201)

A couple years ago I was working at Guitar Center and our store manager had just been promoted to regional manager so we had a new manager coming in. They went out to lunch to go over some store specifics and one of them employees decided to break out the fog machine and fill up the new managers office. They came back from lunch everyone said their goodbyes and he left. The new manager introduced himself to everyone then went into the back to check out his office. Bye now the room was absolutely packed with "strawberry" fog, he opened the door, walked in, and sat down like nothing was wrong. :)

Movement Stirs up the fog (4, Informative)

Anonymous Coward | more than 11 years ago | (#4486205)

I built one of these (with directions from the linked website) last year for my Halloween party. All the people milling around stirs up the fog almost as much as without the chiller.

Packing the chiller with ice, then shoving some dry ice inside the cooling tube works a little better. The dry ice cools the fog, and the regular ice keeps the dry ice from evaporating too fast.

Re:Movement Stirs up the fog (2, Informative)

Mundocani (99058) | more than 11 years ago | (#4486295)

I agree - I too built one of these last year and was a bit disappointed in it. Outdoors, any sort of breeze at all screwed up the effect and indoors the movement of party guests whipped it up and a room filled with oil-fog isn't very much fun at all. I haven't tried putting dry ice in the tube in order to make the fog colder and therefore heavier. This year I'm mostly hoping that the air on Halloween will be much calmer so I can just fill my front yard with creepiness. I suppose I should hope for warmer weather as well, since that should make the chilled fog cling to the ground better too. These things only take a couple of hours to build once you have everything, but don't get your hopes up too high for Vincent Price-quality English moor effect or anything.

Re:Movement Stirs up the fog (1)

wirzcat (221710) | more than 11 years ago | (#4486356)

I also built one a year ago. I shot the fog from behind small heather bushes. The fogs oozes out the bushes. I got the interval timer also which helps

Can someone mark me as flaimbait (-1, Offtopic)

MR_Flaimbait (601265) | more than 11 years ago | (#4486221)

I am Mr flaimbait. And I have positive Karma after some inciteful comment. Can someone mark me as Flaimbait. I need to get rid of this positive Karma stuff.

Re:Can someone mark me as flaimbait (-1, Offtopic)

MR_Flaimbait (601265) | more than 11 years ago | (#4486256)

Thanks!

Re:Can someone mark me as flaimbait (-1, Offtopic)

Anonymous Coward | more than 11 years ago | (#4486276)

That mod was offtopic, not flaimbait. I'd complain if I were you.

Re:Can someone mark me as flaimbait (-1, Flamebait)

MR_Flaimbait (601265) | more than 11 years ago | (#4486289)

Your right. The first was Flaimbait. Now someone modded me offtopic. Come on I need more Flaimbaits, to cancel out the Offtopic

Re:Can someone mark me as flaimbait (0)

Anonymous Coward | more than 11 years ago | (#4486343)

Try responding to this posting [slashdot.org]

Seems to be drawing the flamebaits pretty well

Dry Ice Fog (5, Informative)

mu_wtfo (224511) | more than 11 years ago | (#4486233)

OOh, finally, something on Slashdot that I can comment authoritatively on! (I'm a stagehand, and often use atmospheric effects)
I would just like to refute the posters assertations about dry ice foggers. Firstly, dry ice is certainly NOT expensive. Prices usually fall in the $0.50 to $1.00 / lb range, depending on the form (block, pellets, etc.) and supplier. Which brings me to the second point, availability - Go to your local grocery store. If they don't have it (most in southern and western states usually will), they'll be able to tell you who will.
Once you have the dry ice (I'd suggest about 25-35 lbs. for a good, long show), it's very easy to turn it into fog. Step 1 - pour hot water over it. Step 2 - there is no step 2! There are many many pre-made machines for this purpose, such as the City Theatrical Aquafogger, which are available for rental, but it's such a simple device, anyone here should easily be able to make one on their own.
The basic things you need are as follows - a barrel - big enough to hold the dry ice, plus all the hot water that will be poured through it. A basket, to hold the dry ice in, above the level of the water. A fan and a tube, to take the resultant fog, and put it where you want it (dryer hose works very well for this). And finally, a method for pouring large amounts of very hot water over the dry ice - the faster the rate of pour, the faster the sublimation of the dry ice, and hence, the larger the volume of fog generated. For the water-pouring, something as simple as a 5-gallon pail is quite sufficient.
One down side to a dry-ice fogger, however - that 25lb load will only last about 10 minutes, and the fog only a few minutes longer than that. If the effect that you're looking for is a long-lasting, room-filling, hanging haze, then you'll be better off with an oil-based fogger. (Just avoid prolonged breathing of concentrated amounts of the fog - it's been shown to produce many respiratory ailments - and that was the professional stuff)

Re:Dry Ice Fog (4, Informative)

mu_wtfo (224511) | more than 11 years ago | (#4486258)

Ooh, I almost forgot - surface area of the ice, as well as teh rate of pour, affects the volume of fog. Therefore, if you buy your ice in block form, smash it into little tiny pieces before use. But, for god's sake - don't TOUCH the stuff! It *will* burn you if it comes in contact with your bare skin - it's about 100 below zero, Farenheit.

Re:Dry Ice Fog (2, Insightful)

ShinmaWa (449201) | more than 11 years ago | (#4486399)

  • Firstly, dry ice is certainly NOT expensive. Prices usually fall in the $0.50 to $1.00 / lb range
  • 25lb load will only last about 10 minutes

That sounds pretty expensive to me. At $0.50 to $1.00 per pound, the hourly cost to fog an area is $75 to $150. Using your figures, a basic 4-hour halloween evening of fog effects could run upwards of $600!

It might be that a pound of dry ice is inexpensive, but if its used up in only 25 seconds, it adds up quick.

A dream of mine.... (4, Funny)

mu_wtfo (224511) | more than 11 years ago | (#4486244)

I've always wanted to find cannabis oil, if such a thing exists - imagine, a few drops of that, mixed with the fog juice - man, what a party!!

Re:A dream of mine.... (0)

Anonymous Coward | more than 11 years ago | (#4486420)

There is, but it's more commonly called "hash oil" or just "oil".

dry ice (5, Informative)

loxosceles (580563) | more than 11 years ago | (#4486246)

The problem with dry ice is that it's dangerous (CO2 asphyxiation) in closed areas, and outdoors nothing will work terribly well.

Re:dry ice (3, Informative)

wirelessbuzzers (552513) | more than 11 years ago | (#4486340)

The problem with dry ice is that it's dangerous (CO2 asphyxiation) in closed areas. Not if you ventillate right. Remember that CO2 is heavier than air, so a high vent and a low vent solvethe problem.

mirror (5, Informative)

WhiteChocolate42 (618371) | more than 11 years ago | (#4486248)

I've put up a mirror of the special projects page at gotfog.com, as well as the "making fog hug the ground" and "vortex" special projects. The mirror should be significantly faster than the original, and can be found at http://www.msu.edu/~brownd41/mirror/gotfog/index.h tml

Hum (4, Informative)

BrodyVess (455213) | more than 11 years ago | (#4486252)

I built one of these for my drama class in high school. The problem was, we used DRY ICE as the chilling mechanism for the fog. Blow fog though a cooler full of dry ice, and it'll chill down pretty fast. The good news about this is 1) no water from regular ice. 2) dont need much dry ice. We found that 1-2 pounds of the stuff was more than sufficent to last us through a day of competition. Plus, you can toss some pennies on it for a neat metal contracting sound. The problem we ran into was forcing the fog through with the correct speed to both chill the fog into hugging the floor and also producing any kind of fog volume. We fixed that with a fan from radio shak wired into a battery pack so it would be portable enough. After that the only problem was rolling huge blankets of fog off the edge of the stage and into the audience.

Fog + Lasers = Fun! (4, Interesting)

Greyfox (87712) | more than 11 years ago | (#4486268)

Combine with a green laser (http://www.megalaser.com/) and you've got the ultimate geek experience. Yes they do exist. I'm keeping an eye out for a blue one to complete my set :-)

Disclaimer: I have no affiliation with the abovementioned web site.

Warning: Do not look into laser with remaining eye.

Good times... (0)

phreakinb (248975) | more than 11 years ago | (#4486269)

This is offtopic but oh well.
A friend of mine has a fog machine he bought just for fun. I was staying the night with him once, and we got it out. We played with it all night, and set off the smoke detector about 5 times starting at 1 in the morning. His parents were pissed. Good time, good times.

Dry ice isn't that expensive... (5, Interesting)

stefanlasiewski (63134) | more than 11 years ago | (#4486285)

Dry ice shouldn't be too expensive if you get it from your local industrial chemical supply store (A place that sekks propane, helium, dry ice, etc) . Dry ice is probably more expensive from a party outlet.

Last halloween I bought several pounds of dry ice from a local industrial chemical supply store for about $15 total. I placed the dry ice in a cheap black 5 gallon "witches cauldron", which I got from the local Haloween store.

To create the fog, I simply placed the ice in the cauldron, and periodically added warm water when I saw trick-or-treaters. The warm water melts the ice, and you get fog.

The dry-ice provided enough fog rolling down my front steps to freak out the neighborhood kids. This fog lasted approximately 4 hours.

For added effect, I placed a couple of those green and red glow sticks inside the cauldron (Since glow sticks glow less when cold, I placed the sticks on a pedestal above the cold ice and water), replaced my porch light with a black light, and added a bunch of those green-spiderwebs from the halloween store.

This gave the whole porch a nice eerie glow, especially with the green-glow eminating from the cauldron.

Whole cost of this operation, including dry ice $15 for several pounds), cauldron ($5 at halloween store), black light ($2 at hardware store), glow sticks ($2 each) and spiderwebs ($3 a pack) was probably $25. I'm going to do the same thing this year.

Re:Dry ice isn't that expensive... (1)

stefanlasiewski (63134) | more than 11 years ago | (#4486297)

Actually, I just asked my wife, the keeper of all records. We got 10 pounds of dry ice for about $15. Lasted a looong time...

Shopping! (3, Funny)

mojowantshappy (605815) | more than 11 years ago | (#4486308)

"Only 10 or so shopping days to Halloween." I never really thought of this as an issue...

Call the Fire Dept. (1, Interesting)

Anonymous Coward | more than 11 years ago | (#4486314)

I wonder how many people will call the police thinking their next door neighbor's house is on fire...

Fog Chiller Horror Theatre (1)

Slapdash X. Hashbang (315401) | more than 11 years ago | (#4486332)

Horror Theatre. Scary stuff, kids. Ah-ah-oo!

Liquid Nitrogen? (5, Funny)

dilute (74234) | more than 11 years ago | (#4486337)

Plenty of it around. It certainly makes oodles of thick, ground-hugging fog, especially on a humid or drizzling day. Careful not to "burn" yourself with it, though.

patents ruin this qjkx (0)

Anonymous Coward | more than 11 years ago | (#4486360)

If there weren't any IP laws, you could have a huge amount of fog quickly. All slashdotters want all IP laws banned.

How the Pros do it ... (2, Informative)

Manic Maurice (615214) | more than 11 years ago | (#4486385)

I am a theatrical sound & lighting designer and these are the fog products that I have used for years ... but it might be more fun to build one yourself. :-) Rosco Fog Products [rosco-ca.com]

Bah! (2)

spun (1352) | more than 11 years ago | (#4486389)

Use a little dry ice in a tube, put the tube in front of the fog machine, the dry ice cools the fog and adds some of its own. I just did this for a play I was stage managing. Makes great cooled fog. Heck, even regular ice will work. As long as the fog passes over something cool, it will cool down and hug the ground.

Re:Bah! (0)

Anonymous Coward | more than 11 years ago | (#4486419)

UH..... what do you think this whole article is about?? ITS ABOUT HAVING ICE COOL FOG SO IT STAYS ON THE GROUND..... fuck!! READ THE FUCKING ARTICLE YOU DIPSHIT

Think it over (-1, Offtopic)

Anonymous Coward | more than 11 years ago | (#4486391)

Think it over; as ever - who has the most intellectuals, in relative numbers?:

01. Korea or Viet Nam?
02. Poland or Ethiopia?
03. White House or Disney World?
04. Germany or Mocambique?
05. Manitoba or Florida?
06. Buenos Aires or Los Angeles?
07. Berlin or Paris?
08. London or Upsala?
09. Rome or Kairo?
10. Al Qaida or the Nobel Prize Committee?
11. Ying or Yang?
12. KDE or Gnome?
13. Chip or Dale?
14. George W. Bush or Kurt Gödel?
15. Smog o Pneumonia?
16. Black o White?
17. Sinisters or dexters?

(If results end up serious enough [read complete] we may add a pseudograph; besides seventeen is a nice prime)

Mirror (with images) (3, Informative)

vidnet (580068) | more than 11 years ago | (#4486396)

Mirror [homelinux.net] with as many images as wget could fetch. The box can't handle much load, but every little bit helps.

Dry ICE Expensive? (2, Informative)

Anonymous Coward | more than 11 years ago | (#4486404)

It is funny how many people actually think this. Then when you ask them where they checked on prices lately, "I heard it from a friend". I have purchased dry ice a few times over the past few years for camping trips to keep some perishables cool. I usually pay less then $0.75/lb. Here is an example for a company in Tampa, FL. http://www.dryicesales.com/products.htm

Coolest Effect (2)

WeaponOfChoice (615003) | more than 11 years ago | (#4486423)

Ran a horror chaimber once using the ol' dry ice + hot water trick but noticed a cool effect along the way.
The blocks of dry ice we had were quite large, large enough to take the full blades of the replica swords we had (and convenient to run through, at least compared to the consequences of trying on customers...). If we left the blades in the ice for a couple of minutes they'd be completely coated with a layer. When you took the blade out you get a small scale fog effect coming off the sword - very impressive if you've always dreamed of having an enchanted sword (reality has always let me down on this).
A little experimentation showed this to work on just about anything (coolest was the swords though). A black leather glove was also effective (up to the point fragments started falling inside ...

Modification (1)

jeremyacole (617071) | more than 11 years ago | (#4486442)

It seems like it would be a good idea to add a very simple modification to this:
  • One 4 inch case fan on top of the cooler to blow outside air in (and refill the "tube" with COLD air -- as it would have to travel through the ice.
  • One 3-4 inch case fan outside the cooler on either end of the input or output pipe to blow the fog itself through with a bit more force -- so that yu could make it through more than 5 foot or so of piping...
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