Search found 5 matches
- Tue Dec 01, 2020 8:37 am
- Forum: The Library: Information Desk and Educational Resources
- Topic: Interstellar travel
- Replies: 40
- Views: 137583
Re: Interstellar travel
Every 5000-7000 years new star will arrive to the Sun on the distance like Proxima Centauri 3 light-years. Look please the figure: Distances to the nearest stars from 20,000 years ago until 80,000 years in the future. https://upload.wikimedia.org/wikipedia/commons/e/e9/Near-stars-past-future-en.svg ...
- Tue Dec 01, 2020 8:09 am
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: string theory
- Replies: 3
- Views: 4498
Re: string theory
For 40 years, this theory, like astrology, has not predicted anything new and has not discovered any new facts in nature. This mathematics is almost unrelated to physics, nature. It’s only useful for mathematicians to get a place of professor at the university. If it weren’t there, no one would noti...
- Sun Nov 22, 2020 7:41 am
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: Quanta: Big Bounce Simulations Challenge the Big Bang
- Replies: 9
- Views: 6798
Re: Quanta: Big Bounce Simulations Challenge the Big Bang
Dear Ann, A. I have seen articles offering an explanation of why the universe can pulsate. 1. Nick Gorkavyi, Alexander Vasilkov, A repulsive force in the Einstein theory, Monthly Notices of the Royal Astronomical Society, Volume 461, Issue 3, 21 September 2016, Pages 2929–2933, https://doi.org/10.10...
- Sun Nov 22, 2020 5:31 am
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: Quanta: Big Bounce Simulations Challenge the Big Bang
- Replies: 9
- Views: 6798
Re: Quanta: Big Bounce Simulations Challenge the Big Bang
It is correct, that Dark matter has 10 different types? And you have to use it in your mathematical models. Or I forgot something? 1. Very small neutron stars, young pulsars, quark stars. 2. Black holes and jets from electrons. 3. Red dwarfes (the smallest and coolest kind of star), any planets. 4. ...
- Sun Nov 22, 2020 5:04 am
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: rocket thruster
- Replies: 3
- Views: 4226
Re: rocket thruster
It is not rocket thruster. I found some articles. 1. https://www.researchgate.net/publication/325177082_The_SpaceDrive_Project_-_First_Results_on_EMDrive_and_Mach-Effect_Thrusters 2. https://www.researchgate.net/publication/333188603_The_SpaceDrive_project_-_Thrust_balance_development_and_new_measur...