science jokes

During grammar school science experiements into properties of different alcohols:

The residue of each test was tipped down the sinks, which were grouped in threes. There were no U-bends, but each group of sinks emptied into a single box, which overflowed into the mains sewers. Presumably this was intended to retain things like droplets of mercury, which was not banned from use when I was 16.

During the session, my bunsen went out, so I re-lit it with a splint lit from the teacher's bunsen. For safety's sake (!) I dropped the burning splint into the sink, intending to extinguish it with water, instead of waving it around in the alcohol fumes. A small blue flame disappeared down the plughole. Hum, thinks I, I wonder where that's going?

I opened the cupboard 'neath the sink, only to find the drain box, full of alcohol, a roaring mass of flame. Shutting the doors, I called out, "Er, Sir..." just as the inch-thick wooden lids blew off the adjacent un-used sinks. Fortunately, the back-blast extinguished the flames under the cupboard, so the box only sagged slightly!

IT'S OFFICIAL : CHEMISTRY LECTURES ARE A YAWN.
October 9, 1995

A scientist has come up with proof of something students have known for years -- chemistry lectures are boring. In an article published in the current issue of Chemistry in Britain, a university chemistry lecturer introduced a guest lecturer to a class of 50 doctoral candidates.

Then, he and his colleagues studied variations in what he calls the HTFDR -- "head-to-floor distance reduction." After about an hour , the average HTFDR dropped from 135cm to 121cm, said the author of the study, who preferred to remain anonymous.

The HTFDR immediately bounced back to normal when the speaker uttered the magic words: "And in conclusion . . ."

ON A CHEMISTRY TEST at Midpark High School in Middleburg Heights, Ohio, one question concerned how to clean the floor after a chemical-powder spill. In detail, I described the liquid I would combine with the powder in order to dissolve it with chemical bonding and electron transfer. I was pleased with my grasp of molecular structure until the exams were handed back. Our teacher asked another student to read her answer. She suggested a broom and a dustpan to sweep up the spill -- and got full credit.

-- Contributed to "Tales Out of School" by Joe Astorino © 1996 The Reader's Digest Association, Inc. All rights reserved.

DURING my freshman biology class at North High School in Springfield, Ohio, our teacher was lecturing on the conditions in which bacteria exist. Elaborating on the acidic environment where bacteria thrive, he suggested a simple experiment. "I want you to drop a nail into a glass of Coke or Pepsi, and then observe the acidic reaction on the nail," he said. The girl sitting next to me raised her hand and asked in all seriousness, "Do you mean a real nail, or a press-on?"

-- Contributed to "Tales Out of School" by Carolyn Stickney © 1996 The Reader's Digest Association, Inc. All rights reserved.