Ruang waktu: Perbedaan antara revisi

Beberapa mengusulkan teori ruang-waktu memasukkan dimensi tambahan, termasuk dimensi ruang temporal yang beberapa dimensi yang tidak temporal maupun spasial (''superspace''). Berapa jumlah dimensi yang dibutuhkan untuk menjelaskan alam semesta merupakan sebuah pertanyaan yang masih didiskusikan. Teori yang muncul adalah ''[[string theory]]'' yang memprediksikan antara 10 hingga 26 dimensi, [[teori M]] yang memprediksikan 11 dimensi (10 spasial dan 1 temporal). Namun keberadaan lebih dari empat dimensi akan terasa perbedaannya pada tingkat [[subatomik]].<ref>{{cite book |title=Relativistic Celestial Mechanics of the Solar System |first1=Sergei |last1=Kopeikin |first2=Michael |last2=Efroimsky |first3=George |last3=Kaplan |publisher=John Wiley & Sons |year=2011 |isbn=3527634576 |page=157 |url=http://books.google.com/books?id=uN5_DQWSR14C}}, [http://books.google.com/books?id=uN5_DQWSR14C&pg=PT157 Extract of page 157]</ref>

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