Physics
Profile Activity
Meta user
Network profile
309
reputation
1
9

Danny Han

I'm a freshman in Sungyunkwan University in South Korea. I graduated one year early from high school so that I can learn college math and physics sooner :). I love it when physics use symmetry to derive something.

1
answer
13
questions
~4k
people reached
  • Suwon-si, Gyeonggi-do, South Korea
  • Member for 4 years, 8 months
  • 37 profile views
  • Last seen Dec 15 '20 at 11:21

Communities (19)

Top network posts

Top tags (36)

Score 0
Posts 3
Posts % 21
Score 0
Posts 2
Score 0
Posts 2
Score 0
Posts 2
Score 0
Posts 1
Score 0
Posts 1
View all tags →

Top posts (14)

All Questions Answers
Votes Newest
8 Moment of inertia: why $\mathrm{dI}=r^2\mathrm{dm}$ instead of $\mathrm{dI}=m\mathrm{dr^2}$? Jun 13 '18
4 Understanding rocket problem intuitively [closed] Nov 3 '16
2 Are forces vectors? Jun 12 '18
1 Questions about Creation/Annhiliation Operators of electrons Feb 13 '20
1 Stress tensor force equilibrium in Feynman lecture book Sep 24 '20
1 Does gravity exist between quarks in a neutron? May 5 '16
1 Wave superposition proof? Aug 16 '16
1 Difference betwee $(d\vec r/dt)_{fixed}$ and $(d\vec r/dt)_{not~fixed}$ Dec 2 '18
1 Rotating three (or $n$) times to come back to itself Oct 26 '19
0 Understanding the meaning of “Orders” in Perturbation Theory in Quantum Mechanics Dec 3 '19
View all questions and answers →

Badges (10)

Gold

—

Silver

1

Rarest

Bronze

9

Rarest