{
"$type": "site.standard.document",
"bskyPostRef": {
"cid": "bafyreib7sdlk2wysvm2h33sb5xfml7hvz4aa7vpf7w6jb6xrm3t22khw2a",
"uri": "at://did:plc:ydajev4zmgrq5vrtvjhyjogm/app.bsky.feed.post/3mgcsph4mwlu2"
},
"coverImage": {
"$type": "blob",
"ref": {
"$link": "bafkreic4znitn3hhrujiva3onzinabofbr6dzcc4h2poebot6an7uxsqbi"
},
"mimeType": "image/jpeg",
"size": 15649
},
"path": "/2026/03/this-is-first-time-ive-heard-of.html",
"publishedAt": "2026-03-05T05:17:00.000Z",
"site": "https://justacarguy.blogspot.com",
"tags": [
"https://www.roadarch.com/08/3/roto-sphere_patent.pdf",
"https://www.roadarch.com/sca/roto.html"
],
"textContent": "\n\nApproximately 234 were built from 1960-1971. Only about 20 Roto-Spheres are left with maybe 4 being fully operational\n\n\n\n\nThey were created and produced by Warren Milks who made approximately 234 of them at his sign shop in Bossier City, LA.\n\n\n\n\nRoto-Spheres feature sixteen aluminum spikes outlined in neon. These multi-colored spikes are each eight feet long. They are mounted on a ball that spins in three directions. Not only does the sign rotate on its pole, but the ball itself is composed of two counter-rotating hemispheres. A motor and three gears resembling an automobile's rear axle differential are used to power the ball.\n\n\n\n\n\n\n\n\n\n\n\nhttps://www.roadarch.com/08/3/roto-sphere_patent.pdf\nhttps://www.roadarch.com/sca/roto.html",
"title": "this is the first time I've heard of the Rotosphere, since I didn't grow up in big cities, and they are rare to find after the 80s",
"updatedAt": "2026-03-05T05:24:28.674Z"
}