Added core files for the electron darts interactive
It works, somewhat.
Performance is quite bad with many darts.
The blue gradient is missing, along with the red/yellow wedges of the target.
The end of the activity is not yet in place - when the red text hides and the green text shows.
The interactive works! [#73713718]
The basic gist is there. It's just missing the dartboard image.
Dartboard image added. Done!
[#73713718]
Files and mechanics of deformed Cloud in place
The charged plates have issues, but everything else is fine.
[#73731092]
Final tweaks

[#73713718]

Added about, updated title, and subtitle, tweaked font size, button layout, and aspect ratio.
Changed location of text when probability map is shown.
Charge plates are visualizing correctly.
The interactive is just about done!
[#73731092]
Balloon against wall interactive now working
It works, but there are minor issues such as electrons detaching from atoms, incomplete state resetting, and performance.
[#73733104]
Improvements to deformedCloud interactive
Including:
- Color scheme swap
- Usage of images for charge plates
- Addition of text
- Reduction of electrons

[#73731092]
SVG fixes for Firefox
By adding a viewBox and matching it to the width and height attributes, things just work!
[#73731092]
[#73733104]
Fixed several issues in the balloon interactive
Including:
- Positive core should be slightly smaller and electrons big enough to contain negative symbol.
- Color all charged items in the wall with the appropriate color.
- Cloud view of electron should be on top of atom and translucent.
- Remove messages sent to the console. "Test …"
- Can we hide the atoms on the balloon even in "show atom" mode for the wall?
- As charge is increased the number of charges (or charged atoms) on the balloon should increase. Right now there is no visual representation of increased or decreased amount of charge. See the Java original one to see the expected behavior.
[#73733104]
Updated legend for Balloon interactive
[#73733104]
Quickfix - Balloon interactive
Zero-ing the charge slider now works properly.
[#73733104]
Created Collision interactive
The interative should be fairly complete.
[#73967720]
Quickfix - Resetting the model now resets controls
[#73733104]
Tweak - Colors of bar charts now match atoms
[#73967720]
Created pendulum energy transformation interactive
The interactive should be operable.
Something to note: The pendulum can only be adjusted after resetting and before hitting play.
[#74049456]
Enabled anti-gravity and fixed state resetting
[#73733104]
Small tweaks to collision to make things work!
Fixed most energy leakage and made small layout tweaks.
Now, the greatest leakage occurs at really low velocities and masses.
[#73967720]
Quickfix - glancing blows in collision interactive
Now, when the slider is set to the extremes, the atoms still collide.
[#73967720]
Fixes - Layout changes and added friction
[#74049456]