I learnt how to make a good NYAA blog for LEAPS. Firstly, make the POINT, EVIDENCE, EXPLANATION and LINK (just like History). You can use Grammarly, take pictures and of course, notes.
The structure of stars is the corona, photosphere, convective zone, chromosphere, radiative zone and core. The core is where nuclear fusion happens with hydrogen. The corona's temperature is 1 million Kelvin and extends millions of kilometres from the sun. Solar activity has cycles of 11 years. The corona is only seen during a solar eclipse.
The chromosphere is 10 000 km thick, and its temperature is 6000 Kelvin. The photosphere usually outshines it. The photosphere is the visible part of a star. Its temperature is 10000 Kelvin, and it is 5000 km thick. The convective zone is at 2 million Kelvin and is 200 000 kilometres thick. Convection occurs here.
The radiative zone's temperature can reach 7 million Kelvin. It is 300 000 kilometres thick, and energy is transferred here through radiative diffusion and thermal conduction. The core's temperature is about 15 million Kelvin. Its radius is about 150 000 kilometres, and nuclear fusion occurs due to the heat and pressure in the core due to gravity. It does not collapse due to pressure from nuclear fusion.
The structure of stars is the corona, photosphere, convective zone, chromosphere, radiative zone and core. The core is where nuclear fusion happens with hydrogen. The corona's temperature is 1 million Kelvin and extends millions of kilometres from the sun. Solar activity has cycles of 11 years. The corona is only seen during a solar eclipse.
 |
| A coronal mass ejection animation. Credits to NASA. Image is released into the Public Domain. |
The chromosphere is 10 000 km thick, and its temperature is 6000 Kelvin. The photosphere usually outshines it. The photosphere is the visible part of a star. Its temperature is 10000 Kelvin, and it is 5000 km thick. The convective zone is at 2 million Kelvin and is 200 000 kilometres thick. Convection occurs here.
 |
| Convection. Credits to Eyrian~commonswiki on Wikimedia Commons. File under CC BY-SA 3.0 |
 |
| Nuclear fusion in the Sun. Credits to Borb on Wikimedia Commons. File under CC BY-SA 3.0 |
Alien life is most possible at red dwarf stars. They are the most common star in the universe. In them, the helium and hydrogen continuously mix due to convection. They can live up to 10 trillion years, so humans can live there and aliens may live there already. However, planets would need to be very close to the red dwarf to sustain life and would end up being tidally locked. The side facing the star would become very hot, and the other side would be frigid. The best place to live is at the point between the two extremes. When red dwarfs do die, they hypothetically will turn into a blue dwarf which would burn out and form a white dwarf when they die.
 |
| Proxima Centauri, an example of a red dwarf near us. Credits to the European Space Agency. Image is released into the Public Domain |
A Dyson sphere is a hypothetical structure that surrounds the civilisations parent star with solar panels, capturing 100% of the energy released for other uses.
A black hole bomb is basically a Dyson sphere around a black hole with electromagnetic waves shot in and bouncing around inside the "mirror" and gaining energy from the black hole. That energy can help fuel the civilisation living around the black hole.
That is all for the day. Thank you!
I wished that we learnt a bit more on the levels of civilisation and Dyson spheres. I enjoyed the part of the lesson learning about the structure of stars and the "black hole bomb".
Comments
Post a Comment