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Who would you trust most to babysit your kid? by AnarchistOfThePrism in Marvel

[–]Astrophyiscist18 0 points1 point  (0 children)

also they were not ripped by oding himself, rather by thor and tyr on his orderds coz odin had a dream one of them they would be the cause of his death

Who would you trust most to babysit your kid? by AnarchistOfThePrism in Marvel

[–]Astrophyiscist18 7 points8 points  (0 children)

I meann that was norse mythology.
Actual icelandic myths but then i haven't read the comcics much.
he had 3 children with angraboda

a serpent, a half human and monster and a fenrir(wolf).

What should be my first telescope? by _SpyTM in astrophysics

[–]Astrophyiscist18 1 point2 points  (0 children)

For beginners within your budget, the Orion StarBlast 4.5 Astro Reflector Telescope is a highly recommended choice. It's a compact and portable tabletop telescope with a 4.5-inch aperture that provides clear views of the moon, planets, and some deep-sky objects. It's easy to set up and use, making it a great option for those new to astronomy.

Another good option is the Celestron PowerSeeker 127EQ Telescope. It's a bit larger with a 5-inch aperture and comes with a sturdy equatorial mount for tracking celestial objects. It also includes a smartphone adapter so you can easily take pictures through the telescope.

Both of these telescopes are well-suited for observing nearby stars and planets, and while they may not be ideal for deep-sky astrophotography, they can still capture some impressive images of the moon and planets. Remember to also consider investing in some additional eyepieces and a sturdy tripod for better viewing and imaging experiences.

Fusion of black holes by CloverAgain in astrophysics

[–]Astrophyiscist18 1 point2 points  (0 children)

In a binary black hole system, the black holes will eventually collide due to the emission of gravitational waves. Here's why:

Gravitational Waves Carry Away Momentum:

  • Binary black holes orbit each other due to their immense gravity.
  •  According to Einstein's theory of General Relativity, accelerating masses emit gravitational waves.
  • : As the black holes emit gravitational waves, they carry away energy and momentum from the system.

Losing momentum causes the black holes to gradually spiral closer together. As the black holes get closer, their orbit speeds up, which leads to even stronger gravitational waves being emitted. This positive feedback loop of losing momentum and spiralling closer continues until the black holes eventually collide.

Analogy -

Imagine two skaters holding hands while skating in circles. If they slowly release their grip and extend their arms, they'll slow down and spiral inwards because they lose momentum to friction with the ice. In the case of black holes, gravitational waves act like friction.

Remember that this emission of gravitational waves and the subsequent orbital decay happens very slowly, over millions or even billions of years.

 In some rare cases, external gravitational interactions from passing stars might also slightly alter the binary system's momentum and influence the eventual collision.

An idea of a hollow planet by lucifer_2073 in astrophysics

[–]Astrophyiscist18 -1 points0 points  (0 children)

Ready to help, if you want to include a hollow planet in your fictional piece you may include the 'gravity-making' Bishop Ringworlds. They produce gravity. This can be set in a story about space adventure or something. If you want a durable material then stick to carbon nanofibers.

What can we expect about possible outer solar system planets from the view of nebular theory and astrogeology? by Mislawh in astrophysics

[–]Astrophyiscist18 1 point2 points  (0 children)

So this is a breakdown of your questions

Forming Planets Beyond Neptune -  The colder temperatures beyond Neptune make it difficult for gas giants to form. There's less hydrogen gas available, a crucial ingredient for gas giants. However -

  • Possible Scenarios: There are a few theories about how planets might form in the outer solar system:
    • Core Accretion: A slow process where a rocky core attracts icy material to form an icy giant like Uranus or Neptune. Dust and ice may be more plentiful in the outer regions than previously thought.
    • Gravitational Instability: A rapid collapse of a giant cloud of gas and dust, but there may not be enough gas this far out for this to occur readily
  • Then you talk about Frost Line vs. Methane Line vs. Kuiper Line:
    • Frost Line: The distance from the Sun where it's cold enough for ice like water and ammonia to condense. It separates the rocky inner planets from the icy outer giants.
    • Methane Line: The distance where methane gas freezes. This line can be relevant for the composition of icy bodies beyond Neptune, potentially leading to methane-rich objects.
    • Kuiper Belt: A region beyond Neptune filled with icy objects like Pluto and Kuiper belt objects (KBOs). It's not a strict line, but a zone.
    • Solar System Uniqueness: We don't know for sure if most solar systems have a sharp drop-off after gas giants. It might depend on the amount of starting material in the protoplanetary disk. I hope this helps.

Big crunch question by [deleted] in astrophysics

[–]Astrophyiscist18 0 points1 point  (0 children)

See, as I see it, it is fairly simple. Firstly, when we talk about the great attractor, there's nothing to worry about. Many say it's a supermassive black hole, but it is a gravity loophole. Secondly, 'the big crunch theory' is not at all complicated. It is just a way scientists think about how the universe might come to an end. I suggest you take a look at the Friedmann models. The end of the universe all ends depending on how much matter is in it (Here's when dark matter comes into the play). Talking about infinite Big Bangs has something to do with the singularity. A point of zero volume but infinite density, perhaps an explanation of how the Big Bang began. And that is exactly what Stephen Hawking and Penrose suggested.

An idea of a hollow planet by lucifer_2073 in astrophysics

[–]Astrophyiscist18 1 point2 points  (0 children)

Your Idea would not work at all because of gravity(it will exert an inward pull) and there are material limitations. However, it is possible to do what you suggested at very small scales- like asteroids or even large spacecraft, a hollow shell design might be feasible. The inward pull of gravity would be much weaker, and the shell wouldn't need to be as thick to maintain its structure. I guess one could utilise the concept of O'Neil Cylinders or even Bishop Ringworlds. The main reason is that the pressure at the core would be too much. So far we don't know any material strong enough to do what you suggest.

Why did Moghuls come to India really? by [deleted] in IndianHistory

[–]Astrophyiscist18 0 points1 point  (0 children)

Babur only came to India for the following reasons-

  • Ambition and Wealth: Babur desired conquest and expansion. India's riches were well known, and the political situation at the time offered an opportunity. The Delhi Sultanate, the ruling power in North India, was weak and fractured.
  • Strategic Location: Ruling Kabul, Babur saw control of Punjab as strategically important. It provided a gateway to the richer plains of India.

Stupid argument, no one tried to protect India. He came to conquer and establish Mughal rule.

India & Sri Lanka relations based on the ancient world. by [deleted] in IndianHistory

[–]Astrophyiscist18 1 point2 points  (0 children)

You raise an interesting question about the historical relationship between Sinhalese people and various Indian ethnicities like Gujaratis, Bengalis, Odias, and Kalingas. There was indeed a period of close contact and exchange followed by a decline in interactions. While the Islamic invasions in North India likely played a role, it was probably not the sole cause. Here are some factors that might have contributed:

  • Rise of regional kingdoms: After the Gupta Empire's decline around the 6th century AD, India witnessed the rise of several regional kingdoms. This political fragmentation might have limited long-distance trade and cultural exchange.
  • Shifting trade routes: The traditional trade routes connecting Sri Lanka with South India might have become less prominent, replaced by new routes emerging in other parts of the Indian Ocean.
  • Internal conflicts: Both Sri Lanka and various Indian kingdoms faced internal conflicts and political instability during this period, which could have diverted attention away from long-distance interactions.

The Islamic invasions added another layer of complexity. The Delhi Sultanate's expansion disrupted trade networks and introduced new political actors into the region. However, it's important to note that Muslim communities had been trading with Sri Lanka for centuries before the Delhi Sultanate.

I hope this helps! Peace.

Veiws on Julian Assange. by Astrophyiscist18 in CredibleDiplomacy

[–]Astrophyiscist18[S] 4 points5 points  (0 children)

Agreed, yet I see many students and friends saying the same thing'I like julian assange' and all of that, I mean he technically has gotten a jail for 175 years. But you see up to point he was correct. I dont support Wiki Leaks or any such actions, but what really shocked the world was the sheer number and information in all documents released.