Re: [Phys-l] 3D paint

[Matt Coia <matt.coia@gmail.com>]

Crayola makes a set to use with sidewalk chalk.

Matt

On Thu, Oct 20, 2011 at 9:20 AM, Paul Nord <Paul.Nord@valpo.edu> wrote:

> BC,
>
> If they are the ones I've seen, they are simple diffraction gratings.
>  Different colors get offset by different amounts creating a 3D effect.
>
> Check the art section of your nearest Walmart; by the crayons and
> construction paper.
>
> Paul
>
> On Oct 19, 2011, at 9:42 PM, Bernard Cleyet wrote:
>
> > On 2011, Oct 19, , at 17:41, Anthony Lapinski wrote:
> >
> > > Went to a haunted house and had to wear paper goggles during one part to
> > > see 3D dots/images on a wall. Very cool! Had to return the goggles
> later.
> > > Anyone know how this is done and/or where I can buy these items (paint
> and
> > > goggles)?
> >
> > Could you see the dots w/o the goggles, just not 3D?
> >
> > bc
> >
> > _______________________________________________
> > Forum for Physics Educators
> > Phys-l@carnot.physics.buffalo.edu
> > https://carnot.physics.buffalo.edu/mailman/listinfo/phys-l
>
> _______________________________________________
> Forum for Physics Educators
> Phys-l@carnot.physics.buffalo.edu
> https://carnot.physics.buffalo.edu/mailman/listinfo/phys-l