| 摘要 |
A spherical object formed of several joint parts, including at least twenty hexagonal panel-type elements and at least twelve pentagonal panel-type elements. Each panel-type element has a radius of curvature such that when joined together, they form a hollow spherical object, the radius of curvature of which is at least 0.75 metres. The panel-type elements are provided with an attachment and handling cap. Around the spherical object are fixed first vacuum components that form an inner vacuum layer, and second vacuum components that form an outer vacuum layer at a distance from the inner vacuum layer in the radial direction of the spherical object. Between the inner vacuum layer and outer vacuum layer are arranged intermediate components forming an intermediate layer. The vacuum components and intermediate components further include fixing means by which they can be fixed in place to the attachment and handling caps. |
