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Thursday, May 7, 2015

Things that go “Bang” – Part Three – Smoke on the Water


Back about the time these events were occurring there was a popular Rock band out of England named Deep Purple.  One of their most recognizable hits was a tune titled Smoke on the Water. 

That song’s lyrics actually relate a true story of a Frank Zappa/The Mothers of Invention concert held on December 4th 1971 in the Casino Montreux during which an audience member fired off a flare gun and the resulting fires consumed the entire casino complex, spreading smoke out over Lake Geneva.  The members of Deep Purple were there intending to use the concert venue to record an album beginning the next day.  The following morning, in a different location, Deep Purple Guitarist Ritchie Blackmore created what Total Guitar magazine calls the 4th best guitar riff of all time.

 

Our father used to often quote that “A little bit of knowledge is a dangerous thing” when referring to us boys and our adventures.  One of the more notably of those adventures began when Barry learned about Sodium Metal in High School Chemistry class.

Sodium, the key element of salt is actually a metal.  Refined into its pure form, it becomes a dull silver material that is very soft.  Easily molded and cut.  To store the stuff, you have to keep it away from both air and water.  So it is usually stored in a container filled with oil.

The really interesting thing about sodium metal to us boys was the aggressive speed of oxidation.  Unlike steel that rusts over a period of days and weeks, sodium metal when exposed to oxygen “rusts” in seconds.  And it is so aggressive at that oxidizing action that it will literally rip a water molecule apart just to get at the single oxygen atom that is there.

When it does that, three things happen all at the same time.  The sodium instantly oxides, the resulting chemical bond dissolution and reformation generates a bunch of released energy (heat), and the leftovers of the torn apart water becomes an accumulation of hydrogen atoms.

Hydrogen Gas and Heat. 

Have you ever see any pictures of the Hindenburg Zeppelin fire at Lakehurst Air Station in 1937?  If not, you really should google it.  There is even video footage of the thing going up in a raging fireball.  Yes siree, too much heat and hydrogen produces some spectacular and dangerous results.

Now I ain’t admitting to knowing nothing about how it happened, but not too long after Barry learned about sodium metal in Chemistry Class, a small bar of the metal came into the possession of us boys.  Understanding enough to know that it did spectacular things we set out for a bit of fun.

We took a few of mom’s empty canning jars, lids and rings and headed out to the abandoned rock quarries out west of town.  Our set up once we got there was easy, the results were tremendous. 

By punching some holes in the jar lids and filling the bottom half of the jars with rocks we created several “depth charges”.  All that was left to do was to slice a bit of metal off the bar with a pocket knife, drop it into one of the jars, screw on the lid and ring and toss it into the water.  The jar would hit the lake surface and disappear with a small ripple.  The weight of the rocks pulled the jar under and the holes in the lid let the water pour in inundate the sodium.  The water surface immediately went flat and glassy again.

Briefly.

Very, briefly.

 

Have you ever watched one of those old WWII movies of the navy at work in the Pacific?  You know; the ones where the destroyer is busy hunting an enemy submarine and trying to blow it up?  The movie always has a scene where you see a depth charge roll off a rack at the stern of the ship and then as the ship moves about 150 yards away all of a sudden the surface of the water “humps up” and a foaming white geyser shoots straight up in the air?

Those small homemade explosions looked just like that. 

I have to give Hollywood credit on that one.  While those shots may be the only ones that Hollywood ever got right about explosives, those shots are dead on accurate.  When our little charges detonated, the water would surge up in about a 25 foot circle, with a foaming geyser about 8” in diameter shooting up 20 feet or more.  You could feel the shockwave through your feet.  And hear a low, deep “kah-rump” sound.

And as the geyser water rained back down, there would be a thin, low cloud of smoke on the water.  Wafting slowly off into nothingness.

 

Now I can’t tell you if we were partially responsible for this next bit or not.  But at least it didn’t have any actual Vandermolen fingerprints involved. 

A couple-three years later when I was in Physics and the teacher pulled out the sodium metal to show how it reacted Harvey and I were sitting in the back of the class and I told him about the times Barry, Jeff and I had gone blasting in the quarries and the arroyos around town with that stuff.  Apparently that sounded like a grand time because Harvey decided to pinch a bit for his own fun too.  Problem was that old “little bit of knowledge” quote was hanging out waiting to ambush someone.  For once it wasn’t me.

Right at the end of class that day Harvey snuck into the Chem Lab reagents room and slipped a piece of sodium metal into a pocket of his North Face down jacket.  I remember trooping out of class behind him wondering exactly what he had in mind. 

Right after Physics we both had Psychology together, so out of the science building, across the quad and up the stairs in the main building we went.  Kind of curious to see what was going to happen, I just followed along behind, trying not to be close enough to get any DNA on the situation.

So there we are in the class listening to Mr B drone on about something or other that seemed perfectly senseless to me.  I mean after all, if the guiding light of your field of endeavor is a character as screwed up as Ole Sigmund was, there really is not much credibility that I can give your profession.

After a while, I notice that Harvey is beginning to squirm around in his seat a bit.

Then a bit more.

Then, suddenly, he leaps to his feet and begins beating the tar out of his right side coat pocket with both hands. Fast, really fast. Fanning and slapping away, until a short block of smoking metal melted its way through his pocket and dropped to the floor.

Everyone in the class sat stupefied by that performance.

You may not know this, but an old wood floor has a lot of moisture condensed on its surface in the best of times and it had been raining earlier that day so all the shoes had drug in a bit with them.  That blob of sodium metal sucked all that moisture up off the floor and it began to spin and dance around under the desks just like one of those whizzer fireworks that you can buy on the 4th of July.

As it spun and collected water, and dumped heat and Hydrogen, a small flame flickered up on the surface just about the time it spun out into the main isle down the center of the classroom.

Mr B reacted instantly.  He was a quick thinking man.

The difficulty was, he was applying soft science to a hard science problem.

Now, in any other circumstance, it would have been just the right thing to do.  Unfortunately, as he grabbed his habitual double mega sized icy drink off of the desk and sloshed it on the spinning ball of flame, the situation devolved from ugly to down right dangerous.

After an hour or so, the smoke and the water that had been streaming out of the classroom windows and down the main stairs subsided.  The fire trucks rolled up their hoses and departed, and the school administrators had successfully shoed most of the kids off home.  The 90 year old wooden upper floor of the classroom was in need of replacement along with some water damaged hallway as well, the smoke alarms and fire extinguishers needed to be retested and recharged, and Harvey’s father had arrived as summoned.

Harvey didn’t get to walk in the graduation ceremony later that year, but thanks to the fact that his father was a local professional and generously donated to not only repair the damage but fund a couple long sought after improvements, he did get to graduate.   

© Copyright 2015, Marty Vandermolen, All Rights Reserved

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