Spacetime contraction in the Einstein's elevator
Abstract The equivalence principle was explained by Einstein using the didactic “mental experiment” of a uniform gravitational field inside an elevator. The Earth gravitational field is not really uniform so the question about how to create a uniform gravitational field is legitimate. To this aim, i...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | Portuguese |
| Published: |
Sociedade Brasileira de Física
2020-10-01
|
| Series: | Revista Brasileira de Ensino de Física |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-11172020000100493&tlng=en |
| _version_ | 1819261304820465664 |
|---|---|
| author | Antonio Feoli |
| author_facet | Antonio Feoli |
| author_sort | Antonio Feoli |
| collection | DOAJ |
| description | Abstract The equivalence principle was explained by Einstein using the didactic “mental experiment” of a uniform gravitational field inside an elevator. The Earth gravitational field is not really uniform so the question about how to create a uniform gravitational field is legitimate. To this aim, instead of using metrics depending on spatial coordinates, we have studied a cosmological - like metric and we have found that, under suitable assumptions, it is possible to measure a uniformly accelerated motion for the test particles moving inside the elevator. |
| first_indexed | 2024-12-23T19:39:41Z |
| format | Article |
| id | doaj.art-333e77e0d064488183ebe3e74e5d830b |
| institution | Directory Open Access Journal |
| issn | 1806-9126 |
| language | Portuguese |
| last_indexed | 2024-12-23T19:39:41Z |
| publishDate | 2020-10-01 |
| publisher | Sociedade Brasileira de Física |
| record_format | Article |
| series | Revista Brasileira de Ensino de Física |
| spelling | doaj.art-333e77e0d064488183ebe3e74e5d830b2022-12-21T17:33:42ZporSociedade Brasileira de FísicaRevista Brasileira de Ensino de Física1806-91262020-10-014210.1590/1806-9126-rbef-2020-0337Spacetime contraction in the Einstein's elevatorAntonio Feolihttps://orcid.org/0000-0001-8227-1303Abstract The equivalence principle was explained by Einstein using the didactic “mental experiment” of a uniform gravitational field inside an elevator. The Earth gravitational field is not really uniform so the question about how to create a uniform gravitational field is legitimate. To this aim, instead of using metrics depending on spatial coordinates, we have studied a cosmological - like metric and we have found that, under suitable assumptions, it is possible to measure a uniformly accelerated motion for the test particles moving inside the elevator.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-11172020000100493&tlng=enGeneral RelativityEquivalence principle |
| spellingShingle | Antonio Feoli Spacetime contraction in the Einstein's elevator Revista Brasileira de Ensino de Física General Relativity Equivalence principle |
| title | Spacetime contraction in the Einstein's elevator |
| title_full | Spacetime contraction in the Einstein's elevator |
| title_fullStr | Spacetime contraction in the Einstein's elevator |
| title_full_unstemmed | Spacetime contraction in the Einstein's elevator |
| title_short | Spacetime contraction in the Einstein's elevator |
| title_sort | spacetime contraction in the einstein s elevator |
| topic | General Relativity Equivalence principle |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-11172020000100493&tlng=en |
| work_keys_str_mv | AT antoniofeoli spacetimecontractionintheeinsteinselevator |