math
1+1
2
What is this category
science
3+5
8
What is H2O?
water
2*2
4
Spin: ‖s‖=s(s+1)ℏms∈{−s,−s+1⋯s−1,s}
Orbital: ℓ∈{0⋯n−1}mℓ∈{−ℓ,−ℓ+1⋯ℓ−1,ℓ}
Total: j=ℓ+smj∈{|ℓ−s|,|ℓ−s|+1⋯|ℓ+s|−1,|ℓ+s|}
Angular momentum quantum numbers
what is
Church Kleene ordinal
What is C6760H10447N1743O2010S32?
botulinum toxin
What is in my basement
my washing machine
What's 9+10
Riemann hypothesis