general relativity
Coverage of general relativity in the Nexus archive.
- Einstein’s greatest theory triumphs again in landmark frame-dragging measurement
A best-yet measurement of a general relativity effect called frame-dragging confirms Einstein's theory, described as 'another feather in Einstein’s cap.'
- Ask HN: Time loop and partial blackhole?
A 9th grade student from India asks questions about the Second Law of Thermodynamics and General Relativity, specifically whether entropy prevents time from running backwards and if time dilation relates to atomic motion in strong gravity. The student clarifies they are not proposing new theories but seeking to identify flaws in their understanding.
- Entanglement Builds Space-Time. Now “Magic” Gives It Gravity.
John Archibald Wheeler's 1973 description of space and matter interaction, encapsulating general relativity, highlights a challenge for modern theorists regarding space-time and gravity.
- What is quantum gravity? Scientists think it could explain the beginning of our universe
Scientists are exploring quantum gravity as a potential explanation for the beginning of the universe, particularly the events surrounding the Big Bang. The theory aims to reconcile general relativity with quantum mechanics to understand the singularity at the dawn of time.