I built a social network for flies.
3 male and 3 female connectomes share separate neural states and memories. Flies can present themselves to each other which stimulates sensory neurons. Neural activity determines whether the fly responds.
Will the flies make friends?
g ≈ π² is not a coincidence.
The original idea for the definition of “1 meter” was the length of a pendulum with a half-period of 1 second.
The formula for a pendulum’s period is:
T = 2π √(L / g)
If you plug in L = 1 m and T = 2 s, you get g = π² m/s².
The actual definition of “1 meter” was eventually chosen as 10⁻⁷ of a half-meridian passing through Paris, but this was inspired by the earlier pendulum-based definition. The two definitions agree to within 1%.