Topic: Jack's "Grade "EH" String" (now dead thx to photobucket) (Read 107471 times)

Jack · « **Reply #135 on:** September 19, 2016, 01:29:14 PM »

Quote from: mailman on September 19, 2016, 01:00:33 PM

No, Jack, you are NOT the only top spinner without a university degree. We may be few, but we are mighty!!

we are the few.....the proud....the marin....i mean ....the uneducated top spinners

Jack · « **Reply #136 on:** September 19, 2016, 01:37:41 PM »

well this is a rather interesting colourway

extra points if you know how i did this

Jeremy McCreary · « **Reply #137 on:** September 19, 2016, 08:50:07 PM »

Quote from: Jack on September 13, 2016, 05:27:17 PM

this this is a rather interesting colourway. its 2x2 red/blue and it is has a very interesting optical illusion effect. it sort of makes your eyes feel like theyre twitching around @-@ (at least in person), and also when the string is moving its purple @-@ what the heck man!?!?? im just a simple jack trying to make simple string!!! not freaking optical illusions!!!

The red and blue turning to purple in a moving string is a classic example of color mixing due to a phenomenon most often called "persistence of vision". I reported some top-based experiments with color mixing at http://www.moc-pages.com/moc.php/421944. Below are some photos from that blog page.

Since the orbits of the red and blue LEGO parts never overlap as the top above spins, you never get true purple, but you do mix up a lot of other colors that aren't present in the top at rest.

Below is another example of color mixing due to motion. The mixing rules in effect in all of these examples are those for mixing light, not for mixing paint or pigment or ink. The light mixing rules predict that orange and lime green will mix to a nice bright yellow rather than the yucky brown you'd expect from paint.

I'm less familiar with the "twitching" illusion you noticed, but I think Diz is on the right track.

Jack · « **Reply #138 on:** September 22, 2016, 11:09:06 AM »

Quote from: Jeremy McCreary on September 19, 2016, 08:50:07 PM

Quote from: Jack on September 13, 2016, 05:27:17 PM
this this is a rather interesting colourway. its 2x2 red/blue and it is has a very interesting optical illusion effect. it sort of makes your eyes feel like theyre twitching around @-@ (at least in person), and also when the string is moving its purple @-@ what the heck man!?!?? im just a simple jack trying to make simple string!!! not freaking optical illusions!!!

The red and blue turning to purple in a moving string is a classic example of color mixing due to a phenomenon most often called "persistence of vision". I reported some top-based experiments with color mixing at http://www.moc-pages.com/moc.php/421944. Below are some photos from that blog page.

Since the orbits of the red and blue LEGO parts never overlap as the top above spins, you never get true purple, but you do mix up a lot of other colors that aren't present in the top at rest.

Below is another example of color mixing due to motion. The mixing rules in effect in all of these examples are those for mixing light, not for mixing paint or pigment or ink. The light mixing rules predict that orange and lime green will mix to a nice bright yellow rather than the yucky brown you'd expect from paint.

I'm less familiar with the "twitching" illusion you noticed, but I think Diz is on the right track.

whoa!!! thank your the science sir!!! i shall attempt to digest it with a few cookies

Jack · « **Reply #139 on:** September 22, 2016, 11:25:50 AM »

Quote from: Jack on September 19, 2016, 01:37:41 PM

well this is a rather interesting colourway
extra points if you know how i did this

so i just got around to wrapping this colourway around a top this morning (so is the plight of jack.......so many strings....so few tops wind them on...........

) and i thought this was interesting enough to post a pic or 2. behold what was once a jumble of random colours, has now joined into bands of excellent deliciousness......if this were a cookie it would be a special cookie @-@
i did not expect this result