dorsal/arxiv
View SchemaHow High Can The U-CAS Fly?
| Authors | Shahar Gov, Shmuel Shtrikman |
|---|---|
| Categories | |
| ArXiv ID | physics/9902002 |
| URL | https://arxiv.org/abs/physics/9902002 |
Abstract
The U-CAS is a spinning magnetized top that is levitated in a static magnetic field. The field is produced by a permanent magnet base, positioned below the hovering top. In this paper we derive upper and lower bounds for h - the maximum hovering height of this top. We show that the bounds are of the form a*L where a is a dimensionless number ranging from about 1 to 12, depending on the constraints on the shape of the base and on stability considerations, and L is a characteristic length for the problem. For modern permanent magnets we find that L=~1[meter], thus limiting h to about few meters.
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"abstract": "The U-CAS is a spinning magnetized top that is levitated in a static magnetic\nfield. The field is produced by a permanent magnet base, positioned below the\nhovering top. In this paper we derive upper and lower bounds for h - the\nmaximum hovering height of this top. We show that the bounds are of the form\na*L where a is a dimensionless number ranging from about 1 to 12, depending on\nthe constraints on the shape of the base and on stability considerations, and L\nis a characteristic length for the problem. For modern permanent magnets we\nfind that L=~1[meter], thus limiting h to about few meters.",
"arxiv_id": "physics/9902002",
"authors": [
"Shahar Gov",
"Shmuel Shtrikman"
],
"categories": [
"physics.class-ph",
"physics.gen-ph"
],
"title": "How High Can The U-CAS Fly?",
"url": "https://arxiv.org/abs/physics/9902002"
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