# relativity

Published articles for relativity.

This is one page of public article previews, not the complete archive. Follow Next page to continue. Summaries are not the original full articles.

## How an astrophysicist uses Codex to help simulate black holes

DevFeed: [How an astrophysicist uses Codex to help simulate black holes](<https://devfeed.tech/articles/how-an-astrophysicist-uses-codex-to-help-simulate-black-holes-6709.md>)

Original publisher: [Read original article](<https://openai.com/index/using-codex-to-simulate-black-holes>)

Published: 2026-06-11T00:00:00Z

Content type: article

Language: en

Sources: [OpenAI News](<https://devfeed.tech/sources/openai-news.md>)

Topics: [codex](<https://devfeed.tech/topics/codex.md>), [Algorithms](<https://devfeed.tech/topics/algorithms.md>), [data-processing](<https://devfeed.tech/topics/data-processing.md>), [Programming](<https://devfeed.tech/topics/programming.md>), [Simulation and Design](<https://devfeed.tech/topics/simulation-and-design.md>)

Tags: [algorithms](<https://devfeed.tech/tags/algorithms.md>), [applied-ai](<https://devfeed.tech/tags/applied-ai.md>), [codex](<https://devfeed.tech/tags/codex.md>), [data](<https://devfeed.tech/tags/data.md>), [data-processing](<https://devfeed.tech/tags/data-processing.md>), [event](<https://devfeed.tech/tags/event.md>), [images](<https://devfeed.tech/tags/images.md>), [model](<https://devfeed.tech/tags/model.md>), [relativity](<https://devfeed.tech/tags/relativity.md>), [scale](<https://devfeed.tech/tags/scale.md>), [space](<https://devfeed.tech/tags/space.md>), [time](<https://devfeed.tech/tags/time.md>), [tools](<https://devfeed.tech/tags/tools.md>), [workflows](<https://devfeed.tech/tags/workflows.md>)

### AI overview

Astrophysicist Chi-kwan Chan uses Codex to refine and test algorithms for simulating electrons and ions around black holes. The article explains how these simulations, data processing, and large-scale computing workflows help interpret Event Horizon Telescope observations and study extreme physics and general relativity.

### Source excerpt

Discover how astrophysicist Chi-kwan Chan uses Codex to build black hole simulations, helping scientists study extreme physics and test Einstein's theory of general relativity.

## What time is it? A simple question with a complex answer. How computers synchronize time

DevFeed: [What time is it? A simple question with a complex answer. How computers synchronize time](<https://devfeed.tech/articles/what-time-is-it-a-simple-question-with-a-complex-answer-how-computers-synchronize-time-27113.md>)

Original publisher: [Read original article](<https://andrea.corbellini.name/2023/01/23/what-time-is-it/>)

Author: andreacorbellini

Published: 2023-01-23T19:15:00Z

Content type: article

Language: en

Sources: [Andrea Corbellini](<https://devfeed.tech/sources/andrea-corbellini.md>)

Topics: [DateTime](<https://devfeed.tech/topics/datetime.md>), [Network](<https://devfeed.tech/topics/network.md>), [Protocol (disambiguation)](<https://devfeed.tech/topics/protocol.md>)

Tags: [clocks](<https://devfeed.tech/tags/clocks.md>), [information-technology](<https://devfeed.tech/tags/information-technology.md>), [network](<https://devfeed.tech/tags/network.md>), [ntp](<https://devfeed.tech/tags/ntp.md>), [performance](<https://devfeed.tech/tags/performance.md>), [protocol](<https://devfeed.tech/tags/protocol.md>), [ptp](<https://devfeed.tech/tags/ptp.md>), [relativity](<https://devfeed.tech/tags/relativity.md>), [standard](<https://devfeed.tech/tags/standard.md>), [time](<https://devfeed.tech/tags/time.md>), [time-synchronization](<https://devfeed.tech/tags/time-synchronization.md>)

### AI overview

This article explains why accurate time synchronization matters for computers, phones, applications, and other devices. It introduces challenges in synchronizing time and examines the Network Time Protocol (NTP) and Precision Time Protocol (PTP), while also discussing concepts including time, change, causality, and the definition of a second.

### Source excerpt

Ever wondered how your computer or your phone displays the current date and time accurately? What keeps all the devices in the world (and in space) in agreement on what time it is? What makes applications that require precise timing possible? In this article, I will explain some of the challenges with time synchronization and explore two of the most popular protocols that devices ...