Friday, October 03, 2008

More Chemistry Humor

From the zanies over at www.toothpastefordinner.com. Where you can even buy a t-shirt with this image/message.

3 comments:

Anonymous said...

A Stephen Wright one-liner I think?

Another of his (apparently) and of more interest to we fizzicysts is:

"It doesn't make a difference what temperature a room is, it's always room temperature".

Interesting real-life chemistry stories from my skool dayz:

A student finds the big reel of magnesium ribbon lying on the bench following on from a previous class. He lights the end of the reel. After 30 seconds he, and all of us, realise that this wasn't such a smart idea. With which, the teacher walks in. We all stand watching the ribbon burn a neat catherine wheel scar into the bench until it's finally gone. Teacher says "Now, that was a silly thing to do", walks away, and starts the lesson without further comment.

Slightly worse: While doing some reflux condensing with 15M nitric acid, the flask falls off of the bottom of the column, shatters, and spills fuming nitric on the bench. There is smoke. Student, in an attempt to save damage to the bench, starts wiping the acid up with the sleeve of the lab coat that he is wearing. This then starts smoking. Lab coat is discarded. Teacher, who is now aware of two 'smokers' wanders over and starts giving a lecture on how to deal with acid spills as the room fills with smoke.

Worst: Back in the day when I did chemistry as skool (this is pre periodic table), a student bets another student the equivalent of $30 that he will eat a quantity of KCN. Storeroom was duly broken into, the KCN was stolen and consumed. He died $30 richer. I still think keeping KCN at skool was perhaps misguided. Can't remember what it was used for ... Demonstrating gold extraction I guess?

Anywayz, enough.

Best wishes,

Dr Lilith Lithium

terry said...

yeah, i vaguely recall having seen this joke somewhere before TFD.

your high school stories bring back similar memories for me. happily, in most of them the misfortunes happened to others, oft times at my instigation.

one quick comment re your friend with the taste for KCN. Potassium Cyanide may be a neutral salt, but the juices in the stomach are strong acids.

KCN + Acid = HCN + K+

the gene pool is a bit stronger without his presence.

terry said...

btw, the last-ditch countermeasure for the KCN-ingester would have been to quickly find some Thiosulfate compound (most likely the Sodium salt) in the chemical stores.

Thiosulfates react with ingested cyanide by adding a Sulfur to it, thus making relatively non-toxic thiocyanates.

S2O3 + CN- ==> SO3 + SCN

of course, it's hard to concentrate on reading the bottle labels when your central nervous system is shutting down.