Title: How to light a BBQ
[It all started with a Web page by] . . . a guy named (really) George
Goble, a computer person in the Purdue University engineering
department. Each year, Goble and a bunch of other engineers hold a
picnic in West Lafayette, Indiana, at which they cook hamburgers on a
big grill. Being engineers, they began looking for practical ways to
speed up the charcoal-lighting process.
"We started by blowing the charcoal with a hair dryer," Goble told me
in a telephone interview. "Then we figured out that it would light
faster if we used a vacuum cleaner."
If you know anything about (1) engineers and (2) guys in general, you
know what happened: The purpose of the charcoal-lighting shifted from
cooking hamburgers to seeing how fast they could light the charcoal.
From the vacuum cleaner, they escalated to using a propane torch, then
From the
an acetylene torch. Then Goble started using compressed pure oxygen,
which caused the charcoal to burn much faster, because as you recall
from chemistry class, fire is essentially the rapid combination of
from chemistry
oxygen with the cosine to form the Tigris and Euphrates rivers (or
something along those lines).
By this point, Goble was getting pretty good times. But in the world
of competitive charcoal-lighting, "pretty good" does not cut the
mustard. Thus, Goble hit upon the idea of using - get ready - liquid
oxygen. This is the form of oxygen used in rocket engines; it's 295
degrees below zero and 600 times as dense as regular oxygen. In terms
of releasing energy, pouring liquid oxygen on charcoal is the
equivalent of throwing a live squirrel into a room containing 50
million Labrador retrievers. On Gobel's World Wide Web page (the
address is
http://ghg.ecn.purdue.edu/), you can see actual photographs
and a video of Goble using a bucket attached to a 10-foot-long wooden
handle to dump 3 gallons of liquid oxygen (not sold in stores) onto a
grill containing 60 pounds of charcoal and a lit cigarette for
ignition. What follows is the most impressive charcoal-lighting I
have ever seen, featuring a large fireball that, according to Goble,
reached 10,000 degrees Fahrenheit. The charcoal was ready for cooking
in - this has to be a world record - 3 seconds.
There's also a photo of what happened when Goble used the same
technique on a flimsy $2.88 discount-store grill. All that's left is
a circle of charcoal with a few shreds of metal in it. "Basically,
the grill vaporized," said Goble. "We were thinking of returning it
to the store for a refund."
Looking at Goble's video and photos, I became, as an American, all
choked up with gratitude at the fact that I do not live anywhere near
the engineers' picnic site. But also, I was proud of my country for
producing guys who can be ready to barbecue in less time than it takes
for guys in less-advanced nations, such as France, to spit.
Will the 3-second barrier ever be broken? Will engineers come up with
a new, more powerful charcoal-lighting technology? It's something for
all of us to ponder this summer as we sit outside, chewing our
hamburgers, every now and then glancing in the direction of West
Lafayette, Indiana, looking for a mushroom cloud.
From John Nunley's "Funny Bone"
From: Karen