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Mythbusters - "Greased Lightning"

Trekker4747

Boldly going...
Premium Member
Myths to be tested (according to Wikipedia):

Can you create a 9m/30ft fireball with an oil pan fire?
Does microwaving C4 cause it to explode?
Can you pierce a sail with cheese fired from a cannon?
 
Each of those sound weird... to the point where I have no idea which one is the "A" myth and which ones are the "B" myths.
 
I saw a preview of the cheese myth online... the premise is that when 18th-century ships ran out of cannonballs, in at least one instance they used hard cheeses as substitute ammunition.
 
Can you create a 9m/30ft fireball with an oil pan fire?


I've seen that done personally at a 'fire risks' demonstration, I wasn't aware that was a 'myth' really - a cup of water into a burning oil pan will do that very nicely.


I saw a preview of the cheese myth online... the premise is that when 18th-century ships ran out of cannonballs, in at least one instance they used hard cheeses as substitute ammunition.

I can't really see cheese surviving the explosion necessary to propel it, myself - this one will be interesting to see.
 
I wish discovery Canada would pull it's finger out and show some new eps.
 
Myths to be tested (according to Wikipedia):

Can you create a 9m/30ft fireball with an oil pan fire?
Does microwaving C4 cause it to explode?
Can you pierce a sail with cheese fired from a cannon?

Gotta say none of those sound terribly inspired. But I'm sure they'll make it entertaining anyway.
 
Grease fires: Wow, that's scary. I really have to remember, if I ever somehow set cooking oil on fire, use the fire extinguisher. Now I understand why water isn't good for putting out some types of fire -- because they're just too hot for it, and the water flash-vaporizes and makes it worse.

I think the fixation on the 30-foot figure was missing the point. Even if the number was exaggerated a little, the principle is definitively, frighteningly confirmed. After all, very few kitchens have ceilings 30 feet or more in height, so the exact altitude it's possible for the fireball to reach is irrelevant in most situations.

Still, that was an impressive result with the soup stock can falling into the oil.

Jamie: "Lard." :guffaw:


Microwave bomb: I'm a bit surprised that they pretty much showed people how to bomb a convenience store. I figure there must be some ingredient in the explosive setup that they didn't mention. Or maybe the fact that the only working setup goes boom in two seconds would be sufficient discouragement -- except for suicide bombers, I guess. But then, if you've already got the C4 and the blasting cap, what do you need a microwave for anyway? The movie scene sounds really silly.

At least this time they seemed to have a legitimate reason for their "blow it up anyway" habit. Even though the C4 didn't detonate, I guess it's standard bomb-safety procedure to blow up a dud bomb with a backup bomb just so that you don't walk up to it and have it go off in a delayed reaction. Quite interesting the way they used water to amplify the destructive force.


Cheese cannonball: This feels almost like a revisit, since they've done sails before and already have the cannon; the only new element is the cheese.

And it was very straightforward -- just pick three types of cheese to try, test them one by one, and see what happens. The results were pretty predictable.

Still, I'm not sure they should've said "confirmed" rather than "plausible." The myth said it was Edam cheese, not Garrotxa. Even if Edam was harder back then, we don't know how hard or how brittle, so we can't be sure the myth actually happened as described. Kind of a double standard to be so fixated on the letter of the myth (30-foot fireball) in one segment and to settle for coming close in another.
 
Looking at upcoming episodes, I'm not sure when the Gorn Cannon one is airing. :confused:
By Gorn Cannon you mean the Kirk's plot cannon from Arena right?

If so, where did you hear that they were going to test it?

Edit: Just check Trek movie and apparently it is going to air in season's viewer special.
 
On occasion an episode summary for this series will come along and one will look at the myths to be tested and think the Mythbusters are running out of ideas in their several years now of doing this. Then episodes like last week's come along and show something really kind of nifty, like the "golf-ball effect" tested full-scale with a clay covered Taurus. This episode is the former.

There's really not much to say about this episode.

Cheese Cannon: Really kind of a waste of time. Neat-ish, I guess that it "worked" but I think say that it worked is stretching things. I wouldn't call a tiny hole on the sail a victory. :shrug:

The microwave myth was silly too, but I guess neat in a "proving a known fact" sort-of way. Knowing how plastic explosives work it should've no surprise the C4 with the genuine detonator/firing cap worked and that the movie set-up didn't work (nor the explosive by itself.)

The "central myth" concerned grease fires and while it's always neat to see Adam and Jamie work, at the same time this myth was kind of light-weight. Again, it's one of those things that we all assume or know is true so them testing it is really more of a "proving it on camera." But it also showed how pedantic they can be sometimes -though, I guess, their message-boards can be blamed for that.

They were testing to see if the fireball could reach 30 feet and their initial tests only got it to 20-some feet, well that's myth busted, right? Yeah, if you're going to be pedantic, I guess. First of all, in a home you won't even know if you have a 20-foot fire as most home ceilings aren't that tall, but whatever. I'd also assume "30 feet" is more of an "extreme average example." Their tests were done outside were I assume the wind is going to shave off some of the height their second round of tests on ratios was done in a short room where I think it'd be impossible to tell how much "higher" one fire over another went.

Lastly, at the end Adam "proved" one can put out a grease-fire, by dumping a bambi-bucket of water on the fire from a helicopter. I would've liked to have seen this concept tested in reasonable scale a bit more, if using a ratio of more water than oil could prove useful in a grease fire.

An OK episode, it's a fun show and I'm pressed to think of an episode I don't like, but this is one of the "meh" filler episodes.
 
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Cheese Cannon: Really kind of a waste of time. Neat-ish, I guess that it "worked" but I think say that it worked is stretching things. I wouldn't call a tiny hole on the sail a victory. :shrug:

That was just proof of concept. The actual ship would've had multiple cannons and multiple wheels of cheese, presumably enough to put multiple holes in the enemy's sails and leave them dead in the water, or at least jeopardize their mobility enough to force them to retreat.
 
They were testing to see if the fireball could reach 30 feet and their initial tests only got it to 20-some feet, well that's myth busted, right? Yeah, if you're going to be pedantic, I guess. First of all, in a home you won't even know if you have a 20-foot fire as most home ceilings aren't that tall, but whatever.

Yeah, I think you and Christopher were thinking the same thing I was about that fireball and getting too caught up in that concrete number. I've seen them do that before as well.

The B-Myths were kinda meh too.
 
I can't believe they called the grease fire myth "busted" only because the flame didn't quite reach 30ft although it was without a doubt impressive enough, but called the cheese cannon myth "confirmed" although it worked only with a specific type of cheese and not that well at all (and how much cheese did they have on board of a 18th century war ship anyway?)
 
Jeez, I had always heard grease fires could be dangerous, but I never expected to see something like THAT! The thought of seeing one of those giant fireballs in my kitchen is scary as hell.

Granted, they were using an awful lot of grease for most of those tests, but even in a smaller scale it looked pretty bad.
 
The ammounts of grease they were using didn't seem to extreme for doing, say, stove-top fried chicken. Granted, though, I doubt many are trying too cook their chicken in oil hot enough that it auto-ignites. 600-degree oil is a touch hot to do fried chicken in. ;)
 
The ammounts of grease they were using didn't seem to extreme for doing, say, stove-top fried chicken. Granted, though, I doubt many are trying too cook their chicken in oil hot enough that it auto-ignites. 600-degree oil is a touch hot to do fried chicken in. ;)

I don't think it can even get that hot with food in it ifn you're watching the stove and turn down the heat before your chicken (or whatever you're cooking) is burnt to a lump of coal.
I would guess these accidents usually happen when people forget to turn off the stove and return to the kitchen some time later or so.
 
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