
âImpossibleâ device gets seal of approval.
This is a preview of subscription content, access via your institution
Access options
Subscribe to this journal
Receive 51 print issues and online access
199,00 ⬠per year
only 3,90 ⬠per issue
Buy this article
- Purchase on SpringerLink
- Instant access to full article PDF
Prices may be subject to local taxes which are calculated during checkout
Related links
Related links
Related links in Nature Research

Gravity doughnut promises time machine
Related external links
Rights and permissions
About this article
Cite this article
Ball, P. Antigravity craft slips past patent officers. Nature 438, 139 (2005). https://doi.org/10.1038/438139a
Published:
Issue Date:
DOI: https://doi.org/10.1038/438139a