[a / b / c / d / e / f / g / gif / h / hr / k / m / o / p / s / t / u / v / vg / vm / vmg / vr / vrpg / vst / w / wg] [i / ic] [r9k / s4s / vip] [cm / hm / lgbt / y] [3 / aco / adv / an / bant / biz / cgl / ck / co / diy / fa / fit / gd / hc / his / int / jp / lit / mlp / mu / n / news / out / po / pol / pw / qst / sci / soc / sp / tg / toy / trv / tv / vp / vt / wsg / wsr / x / xs] [Settings] [Search] [Mobile] [Home]
Board
▼ Settings Mobile Home
/sci/ - Science & Math

Name
Options
Comment
Verification
4chan Pass users can bypass this verification. [Learn More] [Login]
File
  • Please read the Rules and FAQ before posting.
  • Additional supported file types are: PDF
  • Use with [math] tags for inline and [eqn] tags for block equations.
  • Right-click equations to view the source.

08/21/20New boards added: /vrpg/, /vmg/, /vst/ and /vm/
05/04/17New trial board added: /bant/ - International/Random
10/04/16New board for 4chan Pass users: /vip/ - Very Important Posts
[Hide] [Show All]


[Advertise on 4chan]


why yes anon of course every planet has a magnetic field that conveniently protects against dna destroying solar radiation how did you know?
>>
>>17080720
not every planet. see mars; its magnetosphere was too weak to even protect its atmosphere
>>
>>17080727
Not only that, if we lived on a planet without magnetosphere we would probably attribute our own evolution to the beneficial solar rays that increase mutation rates while also evolving various mechanism like double'd up DNA and other repair or protection mechanisms to shield against them. It's basic anthropic principle at work once again.
>>
>>17080720
>every planet has a magnetic field
Immediately wrong
>>
>>17080748
>some planets are immune from the laws of electromagnetism and do not participate in it whatsoever
Kek
>>
>>17080754
The ones without an active magnetic core, yes
>>
>>17080754
All matter has a magnetic field if you go by that definition, but planetary magnetic field is not something all planets have. Mars and other such planets do not have one.
>>
>>17080720
How Magnetic Shielding Works

• Deflecting Particles: An onboard electromagnet or permanent magnet creates a magnetic bubble that pushes away charged particles like protons and electrons.
• Reducing Risk: Concepts like NASA-funded studies (such as the Crew Halbach Torus or active superconducting shields) aim to cut down radiation exposure to safe levels for deep-space missions to Mars.

Challenges

• Weight and Power: Strong magnets (like 1-Tesla or superconducting coils) require a lot of energy and can be heavy or complex to power in deep space.
• Secondary Particles: If a magnetic field is too close to the hull, high-energy particles can smash into things and create secondary radiation (like stray neutrons) that still harms the crew. Newer designs use open or extended magnetic fields to push the shield further out into space.
>>
If it just so happens that earth has one and not all planets, that's even more amazing. Atheists will have hard time with that
>>
>>17080789
>the one planet in the solar system on which life appeared and thrived is the one that has many features making life possible for that planet's organisms
yes, truly serendipitous stuff
>>
>>17080791
>it was all random o algo
>>
>>17080757
Well, if we get to choose whichever definition of electromagnetism we wish, then I choose the one where you are wrong and I am correct.
Suck it “science”.
>>
>>17080774
saaaaaaaaaaar
>>
>>17080804
Planetary magnetic field has a meaning, it's not "trace amount of magnetism from each atom"
>>
>>17080798
Define random.
>>
>>17080810
The planet still has a magnetic field, the electrons just aren't aligned to create anything besides a fuzzy weak magnetosphere with very small coincidental wells.
>>
>>17080814
Which is not what the words mean.
>>
>>17080815
No that's exactly what they mean, just because the magnetic field is weak and not aligned to produce regions of higher flux doesn't mean it isn't there.
>>
>>17080810
>the whole is so much less than the sum
Wrong.
>>17080815
Pick the correct definition next time.
>>
>>17080756
protip: they all do
>>
>>17080736
evolution never happened you retards

no scientists even managed to evolve a prokaryote into an eukaryote, and that would be intelligent design. forget random mutations outside of a lab
>>
>>17080720
>has a magnetic field that conveniently
It's the other way around, life as we know it adapted to protect itself from any radiation.

You're misinterpreting the constrain and the way to get around with it.

>>17080886
Check "Evolution for idiots".
>>
>>17080886
>evolution never happened
So you don't exist? If you didn't evolve then how are you using a computer?
>>
>>17080893
Is evolution a cartoon?
>>
>what is this anthropic principle?
>muh coincidence
>God territory probability threshold, but won't tell you which number it is
>>
>>17080720
Not true. The magnetic field is only part of it. You need an atmosphere to actually stop the particles, a magnetic field just deflect them. Venus for example has a very weak magnetic field but no radiation problem on its surface.
And it's not magic, a planetary magnetosphere can make life harder. The radiation environment around Jupiter is far worse that near the Earth, because it captures energetic particles and traps them. The surfaces of its inner moons like Io and Europa are probably completely sterile because of the very high radiation dose. Life there is only likely under the ice.
>>
>>17080893
These are just axioms.
>>
>>17080894
>evolution is only true if I invent a tautology where existence can only happen due to evolution
ain't no way...
>>
>>17080921
Do you even know what that word means?
>>
>>17080893
This post is ChatGPT tier nonsense.



[Advertise on 4chan]

Delete Post: [File Only] Style:
[Disable Mobile View / Use Desktop Site]

[Enable Mobile View / Use Mobile Site]

All trademarks and copyrights on this page are owned by their respective parties. Images uploaded are the responsibility of the Poster. Comments are owned by the Poster.