Tag Archives: teaching

truss no one

I couldn’t help thinking of my students when I read today’s dVerse prompt, Poetics: build a bridge” I tell them truss analysis is just like Sudoku but more fun – just lay out your equations, fill in the gaps, and truss me, that’s all there is to it! Until the build and test, that is. 

Every member – tension or compression?
Every joint – apply Newton’s second.
Have you considered load distribution?
What external forces make a contribution?

~put theory into practice~

Embody your equations in concrete and steel,
Now do the forces balance, for real?
Have you proved yourself a truss design master?
Or will your bridge feature on Engineering Disasters?

 

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righting the writing

Thanks to the Mouse for the title to this one.  And to no specific student or colleague for the rest.  

I’m righting the writing,
un-verbing the nouns,
untangling the syntax
so meaning is found. Continue reading

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The love song of the empty red marking pen

I didn’t think I’d be writing anything this week, because I have all the end of semester marking to do and very limited time. But I couldn’t resist having a quick look to see what Eugi’s prompt was when I knocked off for the night – and then couldn’t resist when I saw it was “everlasting“. So here is my response; a homage to Eliot and a cry for help… well, marking support anyway… Continue reading

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Forces By Demons (FBDs)

A follow-up to Friction does not oppose motion, for Shruba and the Twisted Mouse:

Forces by demons,
and by engine elves,
and forces of motion
belong on same shelves. Continue reading

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Friction does not oppose motion!

You can’t, of course
walk or drive, with
no friction force.
Please tell your kith
and tell your kin:
You can’t begin
without friction. Continue reading

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cautionary example

or “mechanical disadvantage”:

Alas poor Spidey, poor Spidey is dead!
She’s hunted her last, and now she is spread
flat as a pancake, behind the door.
She made a mistake, and now she’s no more. Continue reading

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F=ma (is over-rated)

Newton’s second
is all they know – Continue reading

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