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GPT Chat is a large language model trained by OpenAI, its function is to assist users in generating human-like text based on the input provided to it. It can assist with a wide range of tasks, such as answering questions, providing explanations, and generating original text. It’s designed to generate natural-sounding text, and it’s constantly learning and improving. It’s able to process and generate text at scale, making it a powerful tool for natural language processing and generation. It’s ultimate goal is to make it easier for people to interact with computers and access information using natural language.

Give it a try: https://openai.com/blog/chatgpt/

I had GPT Chat rewrite an article… More.

We’ve trained a model called which interacts in a conversational way. The dialogue format makes it possible for to answer followup questions, admit its mistakes, challenge incorrect premises, and reject inappropriate requests. is a sibling model to InstructGPT, which is trained to follow an instruction in a prompt and provide a detailed response.

Continue reading “ChatGPT: Optimizing Language Models for Dialogue” | >

Standing among solar arrays and power grid equipment at the National Renewable Energy Laboratory (NREL), you might hear a faint, distorted melody buzzing from somewhere. You are not hallucinating—that gray box really is singing the Star Wars Theme, or the ice cream truck song, or Chopin’s Waltz in A minor. Power system engineers are just having some fun with an NREL capability that prevents stability problems on the electrical grid.

Usually, the engineers send another kind of waveform through the inverters and load banks: megawatts of power and voltage vibrations at many frequencies. The purpose of their research is to see how and the grid interact—to get them “in tune” and prevent dangerous electrical oscillations that show up like screechy feedback or a booming sub-bass.

The engineers can do this analysis at with NREL hardware using the lab’s advanced impedance measurement system, and they have also produced a commercially available software called the Grid Impedance Scan Tool or GIST that can do the same with simulated power on device models, allowing any manufacturer or grid operator to certify grid with renewable energy resources.

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After six decades we have finally reached controlled fusion “ignition.” Here is how it works and what it means (and doesn’t mean):

At the Lawrence Livermore National Lab (LLNL) the National Ignition Facility (NIF) starts with the Injection Laser System (ILS), a ytterbium-doped optical fiber laser (Master Oscillator) that produces a single very lower power, 1,053 nanometer (Infrared Light) beam. This single beam is split into 48 Pre-Amplifiers Modules (PAMs) that create four beams each (192 total). Each PAM conducts a two-stage amplification process via xenon flash lamps.

Surpassing energy breakeven at US facility constitutes a “Wright brothers moment” for fusion research, say researchers.

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The cosmic optical background (COB) is the visible light emitted by all sources outside of the Milky Way. This faint glow of light, which can only be observed using very precise and sophisticated telescopes, could help astrophysics to learn more about the origins of the universe and what lies beyond our galaxy.

Last year, physicists working at different institutes across the United States published the most precise COB measurements collected so far, gathered by the New Horizons spacecraft, an interplanetary space probe launched by NASA over a decade ago. These measurements suggested that the COB is two times brighter than theoretical predictions.

Researchers at Johns Hopkins University have recently carried out a theoretical study exploring the possibility that this observed excess light could be caused by the of a hypothesized type of dark matter particles, known as axions. In their paper, published in Physical Review Letters, they showed that axions with masses between 8 and 20 eV could potentially account for the excess COB flux measured by the New Horizons team.

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