Interactive: Parabolic Mirror

[plegner]

An interactive, parabolic mirror, that shows how light from a fixed point is reflected in parallel rays. students can slide the position of the light bulb (to find the focus), and change the shape of the parabola (using a slider).

Bonus: Rather than having static lines to represent light rays, have a subtle animation (e.g. small arrows or beads slowly flowing along the ray, in the direction of the light).

Bonus 2: A few other types of shapes (e.g. semicircle), to show that slight rays are reflected differently.

Bonus 3: Swap the graphics to show how to heat an egg on a parabolic grill, using incoming light from the sun, or concentrate radio waves onto a detector in a radio telescope.

[srikanthccv]

Hello @plegner,

I have built a few science animations using three.js a while back. Here are a few examples

• http://ekshiksha.glitch.me/hybridization/sp
• http://ekshiksha.glitch.me/geometry/trigonalplanar
• http://ekshiksha.glitch.me/periodic-table (periodic table with onclick support for chemical element)

I would like to help to make interactive content on mathigon.

[plegner]

@lonewolf3739, here are a few resources:

• https://github.com/mathigon/textbooks/issues?q=is%3Aopen+is%3Aissue+label%3Ainteractive+no%3Aassignee
• https://mathigon.io/
• https://mathigon.org/careers
• https://github.com/mathigon/textbooks#contributing

Maybe you can email me to schedule a short call, where we can talk about how you want to contribute. However, please avoid commenting on GitHub issues unless it's related to that issue 😄