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Spinning top designed for Benham's discs

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Project by Scott posted 12-11-2012 04:29 PM 2900 views 14 times favorited 16 comments Add to Favorites Watch

Benham discovered in 1895 that spinning black and white discs show subtle colors, and everyone sees different colors. The effect is amazing, and if you watch the disc on the spinning top, as the rpm’s slow, the colors and patterns change.

You can see this effect in action here: http://www.michaelbach.de/ot/col_benham/index.html

I made this for a child for Christmas, from cherry, maple and sapele. For the discs, I found some patterns on the internet and printed them on standard paper.

-- Scott in North Carolina





16 comments so far

View HorizontalMike's profile

HorizontalMike

6970 posts in 1697 days


#1 posted 12-11-2012 04:37 PM

Wow! What a neat and FUN project toy! Very cool!

-- HorizontalMike -- "Woodpeckers understand..."

View a1Jim's profile

a1Jim

113009 posts in 2360 days


#2 posted 12-11-2012 04:48 PM

Very cool idea Scott great idea

-- http://artisticwoodstudio.com Custom furniture

View Doe's profile

Doe

1104 posts in 1613 days


#3 posted 12-11-2012 10:07 PM

Looks great and I think it’ll look greater when playing with it; I think I want one.

-- Mother Nature talks, I try to listen

View Ted78's profile

Ted78

160 posts in 783 days


#4 posted 12-11-2012 10:10 PM

That’s cool, I think I’m stealing that idea for my nephews’ Christmas present

-- Ted

View Scott 's profile

Scott

172 posts in 1050 days


#5 posted 12-11-2012 10:14 PM

Thanks for the comments! Feel free to take that idea, I think it will be a fine Christmas present.

-- Scott in North Carolina

View Gary's profile

Gary

7698 posts in 2216 days


#6 posted 12-11-2012 10:21 PM

I must be a dud….no colors

-- Gary, DeKalb Texas only 4 miles from the mill

View Fishinbo's profile

Fishinbo

11363 posts in 958 days


#7 posted 12-11-2012 10:21 PM

I see the different colors! Very fun!
You have a happy kid this Christmas :)

http://www.sawblade.com

View Scott 's profile

Scott

172 posts in 1050 days


#8 posted 12-11-2012 10:44 PM

The colors are very subtle, so you have to look close.

-- Scott in North Carolina

View Scott 's profile

Scott

172 posts in 1050 days


#9 posted 12-11-2012 10:47 PM

At that link the default speed is 0.9 rps, but I don’t see the colors clearly until you speed it up to at least 3.5 rps, and then they are shades of brown.

-- Scott in North Carolina

View quicksilver's profile

quicksilver

184 posts in 1371 days


#10 posted 12-11-2012 11:54 PM

Great idea
Thanks

-- Quicksilver

View nonickswood's profile

nonickswood

433 posts in 1170 days


#11 posted 12-12-2012 12:15 AM

Very Cool,
I agree with Doe, “I think I want one”

-- Nick, Virginia, http://www.etsy.com/shop/NONICKSWOOD

View exelectrician's profile

exelectrician

1834 posts in 1210 days


#12 posted 12-12-2012 05:04 AM

Thank you for showing me this interesting effect. Wow! Your tops are going to be a hit at Christmas – good for you.

-- Love thy neighbour as thyself

View bigogre's profile

bigogre

370 posts in 932 days


#13 posted 12-12-2012 05:20 AM

Cool. I finished some tops for gifts yesterday, thanks for the link on the printouts.

-- Putting the "mental" in experimental since 1973

View JuanGatico's profile

JuanGatico

71 posts in 969 days


#14 posted 12-12-2012 03:54 PM

Innovative.

View Surfside's profile

Surfside

3389 posts in 956 days


#15 posted 12-12-2012 10:20 PM

Very unique!

www.bandsawblog.com

-- "someone has to be wounded for others to be saved, someone has to sacrifice for others to feel happiness, someone has to die so others could live"

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