Home›Browse›timelike four-vector🌐EnglishEnglishDeutschFrançaisРусский中文日本語EntityQ122208637· pop 5timelike four-vectorSign in to saveAlso known as timelike intervalconcept in special relativityAvailable in 5 languagesFrançaisDeutsch中文日本語via Wikidata sitelinks · CC0Connectionscausal structureEntity