As a non-sciencey person, can someone explain the chasm of ignorance?
Physics
Submitted 1 week ago by fossilesque@mander.xyz to science_memes@mander.xyz
https://mander.xyz/pictrs/image/2f4a3804-9037-4dec-a625-6a742ff096f2.jpeg
Comments
gianni@lemmy.ca 1 week ago
FiveTimbers@lemmy.world 1 week ago
Most of the “chasm of ignorance” is the stuff we know that we don’t know. We don’t know what dark matter is made of. We don’t know what dark energy is. We don’t know how to reconcile quantum mechanics and general relativity.
HawlSera@lemm.ee 1 week ago
We don’t even know if there IS Dark Matter
HootinNHollerin@lemmy.world 1 week ago
It is it the stuff we don’t know that we don’t know?
ieatpwns@lemmy.world 1 week ago
I’m not a physicist, but im pretty sure it’s just the gaps in our knowledge like exactly how/why gravity works. And like we don’t know the things we don’t know so it’s all in the chasm.
stepan@lemmy.cafe 1 week ago
I’ve had this poster in class!
ininewcrow@lemmy.ca 1 week ago
Isaac Newton — ‘To myself I am only a child playing on the beach, while vast oceans of truth lie undiscovered before me’
Fosheze@lemmy.world 1 week ago
Dark matter is just the friends we made along the way.
Diplomjodler3@lemmy.world 1 week ago
Who would win? All the physicists or one slitty boi?
lemming@sh.itjust.works 1 week ago
Cosmology and astrophysics are considered classical? I would expect both quantum physics and relativity to play a major role nowadays.
Chrobin@discuss.tchncs.de 1 week ago
At least cosmology does use some serious quantum physics, even quantum field theory. Source: took 1 year of theoretical cosmology lectures.
cr0nic_s0nic@lemm.ee 1 week ago
damn you doing philosophy dirty
flambonkscious@sh.itjust.works 1 week ago
Naïve question: Is there a reason why electric and magnetic fields look so similar?
SpeakerToLampposts@lemmy.world 1 week ago
They’re similar in some respects, different in others; this happens to only show ways they’re similar. Specifically, it only shows dipole (two-pole) fields, with the field lines running from one pole (North or +) to the other (South or -).
But there are also electric monopoles: things that’re only + (e.g. protons) or - (e.g. electrons), which’ll have field lines radiating out in all directions rather than looping back. Magnets are different in that as far as we know, magnetic monopoles don’t exist. Every North pole’s directly attached to a South pole and vice versa. You can get magnets with more than two poles, or even more complex arrangements (e.g. refrigerator magnets normally have alternating North and South stripes), but they’ll always have equal amounts of Northness and Southness, so the net magnetic charge is always zero.
Another (related) difference is that moving electric charges (e.g. electric currents in a wire) create loops of magnetic field. That is, the field line just goes in a circle around the moving charge, rather than from N to S. Since there’s no such thing (as far as we know) as a magnetic charge, that can’t happen with the electric field.
flambonkscious@sh.itjust.works 1 week ago
Wow, that’s really interesting - thanks!
Tlaloc_Temporal@lemmy.ca 1 week ago
Naïve answer: A magnetic field is an electric field moving through time. There’s some matric math that equates moving electric charges to magnetic force, I think Maxwell’s equations? So it’s kind of about direction, but through time.
ilost7489@lemmy.ca 1 week ago
We have this on the wall in my physics class
Zerush@lemmy.ml 1 week ago
Science has always been wrong, converging towards the truth. The scientific method is based on this.
RecursiveParadox@lemmy.world 1 week ago
Very cool poster, thanks!
NielsBohron@lemmy.world 1 week ago
I will not stand for this Planck erasure! Sure, Einstein and Maxwell are great, but how can you leave off the father of quantum mechanics when a third of the poster is a direct result of his research