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A Boy. Mull. |
When an object moves
sideways, horizontal or parallel to the source of gravity, at a
constant velocity, the effect of gravity on the object is independent
of the object's lateral movement.
So, whilst engaged in a
pre decided battle of maths with my nemesis in the main body of the
school, cold winter afternoons were spent in far more enjoyable and
understandable ways.
Physics was taught in
post war Prefab buildings known as the 'Huts'. Concrete and steel bunkers set in wasted playground space, just low enough to be scaled in rubber soled shoes. Just narrow enough to prevent the concealment of a prone schoolboy hiding on the asbestos roof, from the police.
In retrospect, it is
tempting to think that the Art, Physics and Music that were taught in
the huts were more liberal and humorous sessions due to their
physical distance from the great toad squat bulk of the main school.
Less likely than internal classrooms to receive visits from the
rector or prefects bearing bad news and/or summonses. More close knit
and comfortable due to our sense of isolated camaraderie.
On initial inspection
these were cold and forbidding places, The Huts. For years, I assumed
that the enthusiasm of the teachers who inhabited them was due to
their adventurous spirit. I now realise, it was due to the meanness
of spirit demonstrated by senior staff that demanded young, newly
qualified and enthusiastic teachers start their careers in isolation.
Away from central heating and out of earshot as their classes fell
into chaos. They seldom did.
I like to think that the imposition of
discomfort backfired on the seniors. As many of them languished in
tedium in over heated, musty oak panelled classrooms, we and our near
contemporaries in teaching robes were kept sharp and playing together
outside. Altogether healthier learning environments.
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My weekly boarding home. Kilbowie Hostel. |
Keen eyed readers may
have already discerned the foundation of my physics lessons was
couched in the fascination afforded by Lily Cowan's bust, its
movement and the lack of it. It was the sideways movement that fascinated
me.
In primary school, my
voracious reading had revealed basic facts about the physical
universe. Lily's provision of Victorian and Edwardian reading books
gave a fabulously diverse view of the world and our influence on our
small lunar system. Distances were expressed in Rods Chains and
Perches. Weights in Pecks, Bushels and Grains. Friction was
demonstrated by the burning wooden axles of Greek slave driven carts
tumbling downhill from battles purposely lost and Gravity by Newton
sitting waiting under an apple tree. The significance of mass and
attraction interested me. I had read of the Galileo falling weight
experiment and was not impressed by Newton really. Galileo had gone
to the trouble of climbing the Tower of Pisa and dropping weighted
spheres. Newton merely sat and waited for the truth to appear from
nature. Or so I was told by the editors of these Readers.
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Dropping the balls. Pisa. |
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A Buoy. Mull |
For me, Gravity was
already something wonderful and mysterious. (enhanced by the bending
of a rubber sheet by cricket balls as shown on Open University
programmes by doctor this or that, looking for all the world like a
member of ZZ Top). I had a sense of it's purveying all our space and
spaces. Bending time and light. I understood the nature of Red Shift
and the Doppler effect, absorbing these from stories by Clarke and
and Asimov, watching the sky and sea become one peach glow as the sun
set over our loch, emptying the world of its horizon and unifying all
my simple theories.
The day our teacher
showed that gravity exerted more effect on dropped mass than lateral
travel I realised the germ of my lifelong affection for the little
things that make a difference. In Lily's sweep across the
classroom floor, no movement north to south could be discerned but
expansive sways to left and right bore simple witness to these forces
and their effect on momentum. The appearance and disappearance of her
pearl and heather brooch beneath her cardigan, a measure of the speed
and moment of her carriage.Lily was a walking accellerometer. A Pilotless coastal freighter. Plying the same course, day in day out and teaching all the time. Whether she knew it or not.