Четвертая космическая (@fourthcosmic)

Post #667 77 Jan 23, 2025, 23:54 UTC

Post #666 89 Jan 16, 2025, 22:16 UTC

Orbital Mechanics
The Only Video Needed to Understand Orbital Mechanics
Orbital Maths at NASA with Chris Hadfield
The Rocket Equation: all maths, no distracting astronaut
Introduction to the Hohmann Transfer Orbit
Introduction to Basic Orbital Mechanics
Easy Orbital Mechanics IV - The Oberth Effect
Easy Orbital Mechanics III - Interplanetary Travel
Easy Orbital Mechanics II - Hohmann Transfers
Easy Orbital Mechanics I - Getting to the Moon

Astronaut Scott Kelly teaches orbital mechanics with Kerbal Space Program | Ars Technica

MAVEN's Trajectory to Mars

The Two Body Problem (Newton, Kepler) | Fundamentals of Orbital Mechanics 1
Ordinary Differential Equations (ODEs) | Fundamentals of Orbital Mechanics 2

Introduction to Orbital Mechanics with Python 0
Introduction to Orbital Mechanics with Python 1

Spacecraft Class on GitHub (looking for feedback before merging to main)

Simulating Rocket Trajectories with Python

MATLAB & Hohmann Transfer Tutorial | Spacecraft Engineering
Quantised Inertia - Phase 1 Apparatus Setup Jun 2022

Alfonso Gonzalez - Astrodynamics & SE Podcast

Post #665 65 Jan 16, 2025, 22:06 UTC

👍 1

Post #664 97 Jan 9, 2025, 20:33 UTC

https://users.livejournal.com/---lin---/322156.html

Livejournal Демонстрационный зал в Орево. Более десяти лет прошло с тех пор, как я ездил в поселок Орево на лабораторки и сборы (перед основными сборами в Балабаново у нас два раза проводились небольшие - пятидневные). Спасибо Александру Шаенко за возможность испытать ностальгию - сегодня в знаменитый…

Post #663 94 Jan 3, 2025, 17:31 UTC

https://en.wikipedia.org/wiki/Laniakea_Supercluster

Wikipedia Laniakea Supercluster supercluster containing the Milky Way and approximately 100,000 other nearby galaxies

Post #662 103 Dec 30, 2024, 22:08 UTC

https://www.youtube.com/watch?v=C41gKfiihiM

YouTube Spin Gravity Compared I use open-source software like Blender to make these videos. And I support and recommend using the open-source, no-logs, end-to-end encrypted VPN service provided by Proton. Check it out here: https://go.getproton.me/SH2Fi This compares some of the ringworlds…

Post #661 103 Dec 23, 2024, 23:43 UTC

https://en.wikipedia.org/wiki/List_of_galaxies

Wikipedia List of galaxies An estimated 2 trillion+ galaxies occupy the observable universe.[1] On the order of 100,000 galaxies make up the Local Supercluster, and about 51 galaxies are in the Local Group (see list of nearest galaxies for a complete list).

Post #660 105 Dec 20, 2024, 06:55 UTC

https://x.com/martinmbauer/status/1869763985048002743

Post #658 114 Dec 17, 2024, 02:39 UTC

https://science.nasa.gov/mission/hubble/science/explore-the-night-sky/hubble-messier-catalog/messier-31/

NASA Science Messier 31 (The Andromeda Galaxy) - NASA Science This Hubble image features the spiral galaxy Messier 31 (M31). M31 is better known as the Andromeda Galaxy.

Post #652 98 Dec 12, 2024, 06:30 UTC

https://en.wikipedia.org/wiki/Breakthrough_Propulsion_Physics_Program#Tau_Zero_Foundation

Post #651 89 Dec 10, 2024, 23:13 UTC

https://en.wikipedia.org/wiki/Overview_effect

Wikipedia Overview effect experience of seeing the reality and fragility of the Earth in space

Post #650 65 Dec 10, 2024, 22:58 UTC

https://www.universetoday.com/

Post #649 72 Dec 10, 2024, 22:47 UTC

https://www.youtube.com/watch?v=m2IiI4UVZP8

YouTube The Problem of Power in Space. NASA's New Kilopower Reactor Space is the worst. It’s got hostile radiation, a total lack of atmosphere, near absolute zero temperatures, problematic gravity wells, and worse. In order to keep your spacecraft alive in that environment, you need electricity to keep it warm. Not to mention…

Post #648 52 Dec 10, 2024, 22:47 UTC

https://www.youtube.com/watch?v=6H0qsqZjLW0

YouTube How Do Ion Engines Work? The Most Efficient Propulsion System Out There People always ask me why we’re stuck with chemical rockets. Seriously, exploding a bunch of hydrogen or kerosene is the best we can do? Good news, there are other, exotic science fiction-sounding propulsion systems out there which use electromagnetic fields…

Post #647 46 Dec 10, 2024, 22:45 UTC

https://www.youtube.com/watch?v=Lz4O6AzLofQ

YouTube Satellites That Scoop Air And Use It As Propellant Satellites run out of fuel and have to de-orbit and end their missions. But what if they had access to a practically infinite amount of fuel? What if they could scoop air from the atmosphere and use it as propellant? That is exactly the research that Dr Mansur…

Post #646 43 Dec 10, 2024, 22:45 UTC

https://www.youtube.com/watch?v=SexDIF__8l4

YouTube Can AI Be Useful for Astronomy? AI is practically everywhere right now. But what practical use does it have in science? How can machine learning and large language models help in Astronomy and Cosmology? What can they look like and what use can we get out of them? 🟣 Guest: Dr Mike Smith…

Post #645 38 Dec 10, 2024, 22:44 UTC

https://www.youtube.com/watch?v=QEikPnzrMoo

YouTube New Space Stations, Rocket Size Limit, Surviving Mass Extinction | Q&A Overtime 6 Have I ever messed up a recording? Are there plans for new space stations? Is there a limit to the size of an orbital rocket? Will humanity survive the next mass extinction event? Answering all these questions and more in this week's Overtime Q&A. 🦄 Support…

Post #644 32 Dec 10, 2024, 22:44 UTC

https://www.youtube.com/watch?v=wcR6gs0Up6k

YouTube x1,000 Resolution of JWST But x1,000 Cheaper Interferometers are a great tool for getting incredible resolution without building giant mirrors. Why don't all telescopes use it? What projects should we expect and what could we get from them? What are the challenges? Find out in this interview! 🟣 Guest:…

Post #643 32 Dec 10, 2024, 22:43 UTC

https://www.youtube.com/watch?v=pfbo4Ffzf9I

YouTube The Best Way to Determine A Star's Age: Asteroseismology Stars oscillate. Even the Sun does. And we can learn a lot about them by studying those oscillations. How is it done and what can we learn? Finding out in this interview. 🟣 Guest: Dr. Marc Hon https://mtyhon.github.io/ 🦄 Support us on Patreon: https:…

Post #642 30 Dec 10, 2024, 22:43 UTC

https://www.youtube.com/watch?v=5wnrAo_RmC8

YouTube New Voyagers, Disc Golf on Mars, Limits of Future Telescopes | Q&A 268 What are the limits for the telescopes of the future? Can you play disk golf on Mars or Moon? Will all galaxies eventually fade away? When will we launch Voyagers v2.0? Answering all these questions and more in this week's Q&A. 🦄 Support us on Patreon: …