Engineering Statics

William Haynes on Perpendicular distance between a point and line 1 week, 1 day ago

Saved a checkpoint:

Blackboard is not changing the diagram when advice is shown.  Will try alternate methods to load the applet.

William Haynes on 01. Trigonometry Review 1 week, 1 day ago

Saved a checkpoint:

Geogebra is not changing the diagram when advice is shown.  Will try alternate method of loading the applet.

William Haynes on Method of joints: cantilever truss 1 month ago

Saved a checkpoint:

before some edits

William Haynes on Moment of inertia: 2 channels and 2 plates 1 month, 1 week ago

Saved a checkpoint:

pre simplification of units

William Haynes on Truss: zero force members 2 months ago

Saved a checkpoint:

Figured out how to to access the ggb app in the preamble

var v = question.scope;
try{
var app = v.variables.truss.app

Still doesn't work because of misdirected clicks on the ggb diagram.

William Haynes on Truss: zero force members 2 months ago

Saved a checkpoint:

Changed question.signals.on('adviceDisplayed' ... function,  so that function can find the applet again to hide zero force members.   See var app = 

This doesn't seem very robust to me, probably won't work if the page has multiple applets, and this one has a different identifier.

Still doesn't work because of misdirected clicks on the ggb diagram.

William Haynes on Truss: zero force members 3 months, 3 weeks ago

Saved a checkpoint:

Switched to geogebra_applet() instead of using an extension function. 

Replaced "choose several from a list" answer part with a custom extension part.  

Still doesn't work because of misdirected clicks on the ggb diagram.

William Haynes on Truss: zero force members 3 months, 3 weeks ago

Gave some feedback: Doesn't work

William Haynes on Machine: Vice grips 3 months, 3 weeks ago

Saved a checkpoint:

Minor edit to vice-grips-fbd.png used in advice.  FBD II vs FBD 2

William Haynes on Truss: zero force members 4 months ago

Gave some feedback: Doesn't work

William Haynes on Truss: zero force members 4 months ago

Saved a checkpoint:

broken

William Haynes on 29. Special Loading Conditions 4 months ago

Saved a checkpoint:

broken 

William Haynes on Frame: Free Body Diagrams 4 months ago

Saved a checkpoint:

Replaced png images with jpg to reduce filesize so exam will load in blackboard.

William Haynes on Internal force: Overhanging beam 4 months, 1 week ago

Saved a checkpoint:

Corrected dispay bug in advice by using conditional visibility.  Previously when B<C, units were rendered in italics.

William Haynes on Internal force: Overhanging beam 4 months, 1 week ago

Saved a checkpoint:

Fixed misslabeled points B, C, and D.  (Gail Stephens)

William Haynes on Centroid of parts 4 months, 2 weeks ago

Saved a checkpoint:

Removed quantities from the spreadsheet cells.

Ben Brawn on Moment of a couple: resultant couple 6 months ago

Gave some feedback: Ready to use

Ben Brawn on Moment of a couple: resultant couple 6 months ago

Gave some feedback: Doesn't work

William Haynes on Centroid of a composite area: rectangles and triangles 6 months ago

Saved a checkpoint:

Simplified and used spreadsheet extension.

William Haynes on Centroid of a composite area: rectangles and triangles 6 months ago

Saved a checkpoint:

about to make big changes